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24 noiembrie 2010

Showroom la YO3KSR

Radioclubul YO3KSR incepe seria evenimentelor destinate publicului radioamator si nu numai!
Pentru inceput, radioclubul YO3KSR invita curiosii la o prezentare a statiei portabile Wouxun KG-UVD1.
Aveti ocazia sa o testati live la club!

12 noiembrie 2010

RadioMagazinYO

O noua revista dedicata radioamatorilor se pregateste de lansare. O revista gratuita online, usor digerabila, articole, review-uri, ultimele scule din domeniu, antene, statii… si, odata pe luna poti castiga un cadou din partea redactiei! Luna asta te poti alege cu o super antena VHF de mobil, talpa magnetica inclusa! Ah, inca ceva… nu este o ruginatura, este nou nouta! Daca n-ai masina o poti pune si in balcon, daca n-ai balcon hmmm… yahoo bigsmile Inscriere gratuita la revista RadioMagazinYO

Luna viitoare daca ai bafta te vei alege cu o portabila UHF!

Vrei sa simti “celuloza” intre degete? Exista si versiunea tiparita doar ca aceasta este contra cost.

Pana una alta, fugi repede pe www.yo3ksr.ro si fa-ti un cont! Este GRATUIT!

14 octombrie 2010

A new repeater for the South of Romania

Well, we did it!


We manage to put a repeater on Furnica Peak (KN25RI) near Sinaia at 2000 m asl.
The repeater is a mixed one: it has voice capabilities in UHF (438.825 MHz with 7,6 MHz negative shift) and a Digipeater for Packet Radio and APRS on 144.800 MHz.
The repeater is performing well and is remote controlled.
A novelty for Romanian hams, the repeater has GSM Phone Patch! The phone patch is fully Break In as the repeater is working in duplex mode.

The voice repeater is based on two Motorola CM340 and a Zetron Model 30.
We used a Procomm duplexer and a Sommerkamp X41 antenna.
The coaxial cable is a Andrew Cellflex. The strike protection is made with Polyphaser units.
The digipeater is made with a TNC II clone and a Motorola M100 radio and has around 10W input.
We used a Diamond diplexer to use a single antenna because the conditions there are very rough.
The repeater has a Lead Acid battery (deep discharge) for backup (55Ah).



The repeater was sponsored by:


and made by:

(The Club Station of Romanian Society of Radioamateurs)

and some other enthusiastic hams like
YO3GDI, YO3FKJ, YO3AAS, YO3IHG and, of course, myself).

The coverage is very good; we heard stations from Brasov (over the Bucegi mountains), from Braila, from Pitesti and a very weak signal was put on the repeater from Constanta by Claudiu, YO4FYQ).
In Bucharest we can use a portable radio on the street, with aprox. 2,5W output which is very good!
As the tail can be reduced, the repeater is suitable to connect a crossband on remote places in order to have coverage for the remote areas with weak signal. Right now, experimental, a cross band is working in Bucharest, with 144.550MHz, CTCSS 203,5, simplex.

Here are some pictures (TNX YO3IHG) with the surroundings there:















... and, a final view before departing to our homes...



04 septembrie 2010

O precizare

Pe site-ul d-lui Francisc Grunberg a aparut un "Drept la replica" ce continua un conflict aparut acum aproape un an, care conflict a fost generat de o serie de replici si contra-replici pe marginea unui articol publicat pe un site dedicat radioamatorismului, de catre unii radioamatori, membri de entitati afiliate la FRR.
In articolul sau, dl. Francisc Grunberg citeaza un mesaj privat din care rezulta ca as fi participat la o sedinta a CA al FRR in care s-au luat unele masuri privitoare la conflictul in speta.
Intrucat, dl. Francisc Grunberg, pe pagina sa nu permite postarea de comentarii, ma vad nevoit sa postez aici urmatoarele, pentru clarificare:
-In anul 2009, in sedinta AGA de la data de 01.04.2006 am fost "cooptat" ca membru al CA al FRR, fara drept de vot, pana la "noile alegeri".
-Mandatul meu de "membru cooptat" al CA a incetat in anul 2007, 31 martie. 1 aprilie 2008 fiind data urmatoarei AGA iar "cooptarea" a fost valabila pana la aceste alegeri.
-Nu imi amintesc sa fi participat la vreo "intâlnire a Consiliului Director pentru astăzi marţi la Radioclubul Municipal".
De altfel, ca urmare a neachitarii cotizatiei pe muuuulti ani la acest "club" (ultima a fost prin 2004)- calitatea de membru a expirat de facto si de jure.
-Imi amintesc insa ca, am avut o scurta discutie cu dl. Ciobanita referitoare la posibilitatea de retragere a unor autorizatii de radioamator de catre FRR. A facut o expunere foarte succinta a situatiei si, trecand destul timp de atunci, nu imi amintesc daca a fost prezentata "la litera" solicitarea d-lui Francisc Grunberg. Sfatul meu a fost de a instrui persoana afectata sa se adreseze justitiei intrucat:
-conflictul verbal s-a desfasurat exclusiv intre persoane, pe un site ce nu apartine Federatiei si nici nu este gestionat de aceasta. In plus, site-ul se supune altei legislatii decat cea romana (hosting in USA);
-implicarea FRR se poate limita la solicitari si comunicate de presa intrucat nu are atributii de reglementare in astfel de cazuri.

Poate nu acestea au fost cuvintele, dar cu certitudine aceasta a fost esenta.

Cat priveste calitatea de avocat... Avocatura este o profesie liberala intrucat se "vinde" un produs imaterial, exclusiv intelectual, anume "sfatul juridic". Este greu de spus unde incepe particularul si unde avocatul atunci cand cineva te intreaba "e bine sa fac asa sau asa". In toate cazurile insa, sfatul depinde de acuratetea input-ului: un input nesincer sau incomplet duce la solutii neadecvate.
Totodata, practicarea avocaturii presupune stabilirea unei relatii avocat-client, care se naste exclusiv prin incheierea unui contract de asistenta juridica. Abia atunci se poate vorbi cu certitudine de "sfat de avocat". Pana la contract, este un sfat de om care are cunostinte juridice dar care nu este tinut de examinarea in amanunt a spetei.
La momentul respectiv eram "in trecere" pe la club cu alt subiect pe lista si nicidecum "consiliere juridica".
Asa ca nu am intrat in detalii si solutia oferita a avut o componenta juridica minimalista.

Incepand cu octombrie 2008, nu am mai fost in niciun fel preocupat de problemele organizatorice ale FRR si insist in a nu fi asociat cu ceea ce se intampla acolo, cu atat mai mult cu sedinta de CA la care face referire dl. Grunberg si cu privire la care a fost informat prin email.
Totusi, chiar si din respectivul email, se poate observa ca membrii CA sunt enumerati distinct iar prezenta mea acolo nu este aratata ca fiind o participare efectiva la ce s-o fi hotarat.

Iata si mesajul citat de dl. Francisc Grunberg:

«Bună seara,
Regret că dl.Vicepreşedinte nu a lecturat şi mesajul meu imediat dupa ce am primit e-mail d-sale.
Am rugat o intâlnire a Consiliului Director pentru astăzi marţi la Radioclubul Municipal.
Au fost prezenţi şi câţiva membrii ai CA (YO7FT,YO3APG,YO3JW,YO3FU) şi dl.avocat YO3HJV.
Dl.vicepreşedinte din diverse motive nu a fost prezent. Am aşteptat până la ora 17.30.
Am discutat în principiu cele apărute pe site, C.D. (Comitetul Director) neluând nici o hotărâre în acest sens rămânând o reprogramare.
Există o propunere de a sesiza ANCOM pentru a solicita suspendarea autorizaţiei celor în conflict până la rezolvarea conflictului pe cale civilă.»

LATER EDIT:
Asadar, orice asociere intre persoana mea si o eventuala "hotarare" adoptata de CA al FRR cu acel prilej este complet deplasata si neconforma cu realitatea. Si nici nu am chef sa mai dezvolt subiectul si sa alerg dupa potcoave de cai morti
(expresie uzuala)!

Ca o parere personala, mi se pare aiurea ca radioamatorismul sa devina scena unor astfel de intamplari, dar, nu-i asa, traim in Romania...



14 iulie 2010

YO3IBZ/MM

Our coleague, Aurel, The chief of YO3KSR Radioclub, left Bucharest for Juneau/Alaska. Here is the message:

Hello all!

From 15.07.2010 to 14.02.2011 i will be YO3IBZ/MM on Celebrity Mercury cruise ship, so when i will have free time i will work from the ship or i will go to shore to work from the land, you can check my Ship Itinerary and se where i will be maybe you will work me!


My equipment will be: Yaesu FT-817ND, 5w, one 11,9v 4,5A battery pack, and original battery pack from Yaesu (FNB-85)
Antenna 1: Fishing pole vertical multiband antenna.
Antenna 2: Longueur multiband antenna.
Antenna 3: Multiband Delta Loop antenna.

I will not have all antennas mounted, type of antenna will depend of location.


I wish you all the best 73&88 to you and your family!


YO3IBZ - Aurel.

More info HERE.

27 iunie 2010

Calculator pentru radioamatori

Am reusit sa transpun in WEB tabelul calculator in xls pe care il foloseam de destul de multa vreme pentru totr felul de calcule.
Va recomand sa apelati la el ori de cate ori aveti dubii cu privire la posibilitatea de stabilire a unui canal radio intre doua statii sau atunci cand nu mai stici cati dBm reprezinta 1W.

Sper sa il gasiti util si sa il folositi cu placere!

Pentru a-l utiliza, click pe imagine!





11 iunie 2010

The biggest YOFF Expedition /MM is about to start!

ExpeditionA few fellow hams will start what it will be "The biggest YOFF Event in Romania", a /MM trip on the Danube Delta!

They will be active mostly in HF bands and will have a QRO (500 W) in order to be heard by a grossly mass of DX hunters.

So be prepared or YOFF-021 !


10 iunie 2010

Condenser mic for TS-2000


A found a very nice schematics for connecting a condenser microphone with the Kenwood TS-2000. It is especially usefull for users that want to use combo mic-headset with their beloved transceiver!


Original drawing from UU2JJ

17 mai 2010

Field Programming for Kenwood TK-370

The Kenwood TK-370 is a versatile 32 channel portable radio, capable to deliver up to 5W in UHF from 380 MHz up to 500 MHz. Of course, with some tuning in the front end receiving section...
You can use KPG-27D software (DOS based) or you can choose the easy way for programming from the keyboard.

Here is the algorithm for keyboard programming:

To enter in the programming sequence, press and hold (light) & (dial) while turning on radio.

Hold until (SEL) appears on the display.

You can choose three sets of menu items, depending on what key is pressed after entering into programming mode.
To advance in the menu items, press PTT. At the end of the menu commands set, will be shown on the LCD.

Pressing (SCN) allows you to program the following

1. Monitor Key
Off = off
1 = Monitor momentary
2 = Monitor Lock
3 = Squelch off momentary

2. Scan Key
Off = off
Co = carrier operate
To = Time operate

3. Dial Key
Off = off
On = enable

4. TA key
TA = talkaround
RV = Reverse
Off

5. Lo Key
On
Off

6. Priority
None
1 = fixed
2 = selected

7. Fixed Priority Channel
Turn selector to channel

8. Look back time A
Turn selector to time in seconds

9. Look back time B
Turn selector to time in seconds

10. Revert Channel
1 = Selected
2 = Last Call
3 = Last used
4 = Selected + Talkback
5 = Priority
6 = Priority + Talkback

11. Tx Dwell time
Turn selector to time in seconds

12. Drop out delay
Turn selector to time in seconds

13. Time out timer
Turn selector to time in seconds

14. Tot Pre-alert
Turn selector to time in seconds

15. Tot Rekey time
Turn selector to time in seconds

16. Tot reset time
Turn selector to time in seconds

17. Squelch Level
Turn selector to Squelch

18. Beep tone
On
Off

19. Signalling
And
Or

20. Battery Save
On
Off

21. Selectable QT
On
Off

22. Clr to transpond
On
Off

23. Del/ Add
On
Off

Pressing (Dial) allows programming of:

DTMF

24. digit time
Turn selector to time in milliseconds

25. inter digit time
Turn selector to time in milliseconds

26. First digit time
Turn selector to time in milliseconds

27. Rise time
Turn selector to time in milliseconds

28. Rise time with QT
Turn selector to time in milliseconds

29. PTT ID
Off
1 = connect
2 = disconnect
3 = Both

30. Dial ID
On
Off

31. Connect ID

32. Disconnect ID

33. # of DTMF keys on Keypad
12
16

34. DTMF hold time
On
Off

35. Store & send
On
Off

36. D key assignment
Turn selector to D or time in seconds for pause

37. Dtmf Signaling
Off
1 = code squelch
2 = Selective Call

38. Intermediate Code
OFF
A
B
C
D
E
F

39. Group Code
OFF
A
B
C
D
E
F

40. Auto Reset time
Turn selector for time in Seconds
41. Call Alert/ Transpond
Off
1 =
2 =
3
4
5

42. Transpond
On
Off

Pressing (TA) will allow you to program Frequencies

Use selector to choose channel
Press PTT

Enter Rx frequency using:
- the Selector Knob to change kHz;
- the Selector Knob + (light) to change MHz.

If no channel is Shown press the (LO) button.
Press PTT

Enter Rx CTCSS code
Press PTT

Enter Tx Frequency as above
Press PTT

Enter Tx CTCSS code
Press PTT

1. Option Signal
Off
1 = DTMF
2 = 2-Tone

2. PTT ID
On
Off

3. Add/ Del

4. Busy Tx

5. Clock frequency shift

6. Power
Hi
Low

19 aprilie 2010

Portable holiday setup

Acum aproape o luna am primit de la Corrado o antena Sirio Megawatt DX4000.
De la "mama ei", antena este destinata utilizarii pe masina in canalele CB.

Este cea mai lunga antena de mobil pe care am intalnit-o in Romania. Poate mai sunt pe alte meleaguri...
Potrivit specificatiilor, antena suporta 600W continuu; este terminata in mufa UHF (nu sunt un fan al acestei mufe dar este relativ OK in HF) si are, atentie, 2 m inaltime!
Am avut ocazia sa trag cu ochiul la un prospect Sirio unde este prezentata in sectiune zona bobinei. Astfel am vazut ca bobina este doar in prelungirea spicului nefiind conectata si la masa. Acest aspect a fost confirmat si cu aparatul de masura. Destul de fireasca solutia, intrucat, la aceasta lungime, cateva spire fac antena sa simuleze un GP sfert de unda (aproximativ 2,6m fizic).
Ideea este ca antena a fost "tintita" pentru utilizare in benzile HF, nu numai in banda de 28 MHz ( in care merge ireprosabil scoasa din tipla!).
Antena este insotita de montura de fixare pe tabla capotei, la o stfel de lungime nefiind recomandabila utilizarea suporturilor magnetice; montura este insotita si de un cablu RG58U terminat cu mufa DV la capatul dinspre antena si cu mufa UHF tata la capatul dinspre statie.

Fixarea pentru teste am facut-o pe marginea balconului, pe o piesa L din otel, la randul ei fixata cu suruburi de o platbanda de Al pentru imobilizarea pe balustrada balconului.
A fost necesara inclinarea antenei pentru a o scoate de sub plafonul balconului.
Ca de obicei la astfel de teste, am fixat si o contragreutate realizata dintr-un banal fir electric multifilar, din Cu izolat cu PVC in lungime de aproximativ 3m, lasat sa atarne sub antena.
Pentru teste am utilizat:
A. FT817N+LDG Z817
B. FT857D+LDG Z100.
Antena se acordeaza absolut superb in benzile de 30m, 20m, 17m, 15m, 12m, 10m si 6m. Din pacate, propagarea nu a fost deschisa in benzile de la 12 m in sus, astfel ca probele s-au concretizat in legaturi in benzile inferioare valorii de 12m.

In varianta A am realizat legaturi in D, UR si GB in gama 20m-17m.
In varianta B, am avut placuta surpriza sa lucrez si W precum si o statie din PY!.

Folosind un dispozitiv de adaptare a antenei (un UnUn cu comutator 4:1 sau 9:1 si cu o bobina cu prize comutabile), am adaptat antena si pentru lucrul in benzile de 40m si 80m, conectand unitatea AM (antenna matcher) cu un cablu scurt cu un mic crocodil direct la mufa DV.
In banda de 40m am facut legaturi in Europa fara nici un fel de probleme, cu ambele variante de test.
In banda de 80m, am auzit statiile YO "traditionale" (YO2LGX, YO5PDW s.a.m.d) dar nu am fost auzit. Poate si pentru ca antena era cam prea sus pentru exploatarea efectului NVIS.
Una peste alta, antena se preteaza la operarea in regim portabil. Singura problema reala pe care o pune aceasta antena este transportul; in cazul in care deplasarea se face cu un autoturism, poate servi bine-mersi pentru echiparea statiei CB.
Totusi, retineti: este prea lunga pentru suportul magnetic!
Antena urmeaza sa echipeze Unitatea Mobila de Comunicatii a Societatii Romane a Radioamatorilor, in trusa de echipamente portabile HF.

31 martie 2010

WOW!

Skinput, o modalitate de a folosi corpul ca interfata pentru echipamentele electronice portabile.

23 martie 2010

Earth Hour

"Ora Pamantului" reprezinta o miscare globala un demers conjugat al sustinatorilor "cauzei verzi" si isi propune sa sensibilizeze comunitatile si sa lupte impotriva incalzirii globale. Este stiut faptul ca, la nivel mondial, aproximativ 35% din energia electrica este produsa de termocentrale.
Demarata in anul 2007 in Sydney/Australia, actiunea a fost deosebit de bine primita; in anul 2009, la actiune au participat peste 1000 de orase din 88 de tari.

Participarea la "Ora Pamantului" presupune reducerea consumului de curent electric prin stingerea luminilor pe durata unei ore si/sau deconectarea consumatorilor electrici aflati in stand-by.

Societatea Romana a Radioamatorilor isi propune sa sutina aceasta initiativa prin efectuarea de legaturi radio in intervalul 20:00 - 22:00 la data de 27 martie 2010, in benzile HF 80m-23cm, fonie si CW folosind exclusiv echipamente alimentate din baterii reincarcabile.

Indicativele sub care statia S.R.R. va realiza legaturi sunt: YO3KSR si YR1X. Puterea maxima cu care se va lucra va fi de 50W
Cu acest prilej vom pune in circulatie un QSL card special si o Diploma de sustinator.
Statiile care lucreaza cele doua indicative, in intervalul de timp indicat, in cel putin 3 benzi diferite, pot solicita Diploma pusa in circulatie pentru acest eveniment.
Diploma se transmite in format electronic.
Pentru expedierea diplomei in format printat, va rugam sa ne contactati.



In 2009 hundreds of millions of people around the world showed their support by turning off their lights for one hour.

Earth Hour 2010 will continue to be a global call to action to every individual, every business and every community. A call to stand up, to show leadership and be responsible for our future.

Romanian Society of Radioamateurs is sustaining this initative by issuing a special QSL card for QSO's with YO3KSR and YR1X stations.

The stations will be active in HF+VHF+SHF bands, from 80m band to 23 cm band, on 27 th of March 2010, between 18:00-20:00 UTC.

The maximum power will be 50W and the stations will be entirely battery operated!

For more than 3 QSO with this stations in 3 different frequency bands, a special Diploma will be sent in electronic format.

For paper Diploma, please contact us via e-mail: yo3 k s r @ gmail. com {remove extra spaces}

19 martie 2010

Sky Command II, reloaded

So... Maybe you are familiar with the Sky Command concept.
As I don't have anymore the TS2000x in my shack, I was wondering if I can make something to use the TS-480 and the TM-D710 (I have two of them) for SkyCommand!



I already have a TM-D710 on my ARO and I also have a TH-D7 to use them as Commander.
The user manual, both on TS-2000 and TS-480 say that the SkyCommand will work with a TM-D700 as Transporter radio.
The challenge was to use as Transporter a TM-D710.
The TM-D700 use a DB9 connector for COM and the TM-D710 use a 8 pin Mini Din female connector.
I was searching everywhere for a connector between the D710 and TS-480 but I couldn't find a diagram.
So I started to experiment.
I will not bother your head with my various tests but I will give you the result:

The schematic diagram for this special cable!



WARNING: THE CONNECTOR IS VIEWED FROM THE SOLDER SIDE!

Prerequisites:
-1 DB9 Female (cable version);
-1 8pin Mini D, Male (cable version);
-about 30 cm of 5x0.3mm cable
-Steady hand and good eyes!


Icom IC-02AT

A fost prima statie radio cu frecventa setabila din taste, in banda de 2m, pe care am avut ocazia sa o ascult si sa ma joc cu ea. Se intampla candva, prin iarna lui 1995.
Am fost impresionat de calitatea semnalului audio pe care il reda acea cutiuta precum si de senzatia de statie compacta si buna de batut cuie! Iti lasa impresia ca poti ace orice cu ea si ca va continua sa mearga indiferent de incercarile prin care va trece. Si se pare ca nu sunt singurul!
Una peste alta, este o statie din perioada cand producatorii faceau statii care sa reziste o generatie; cu unele mici modificari este capabila sa scoata 7W. Nu ca intre 7 si 4 ar fi o mare diferenta, dar asta spune ceva despre rezerva de putere a etajului final.
Privind retrospectiv, imi dau seama ca avea o receptie foarte sensibila dar imi este greu sa imi imaginez cum s-ar comporta in conditiile de poluare radioelectrica din zilele noastre. Presupun insa ca ar face fata onorabil pentru ca acea generatie avea filtre serioase in front end.
Bateria tinea cam o saptamana in conditiile in care nu prea emiteam.

Este una din primele statii care aveau encoder CTCSS incorporat si nu ca modul optional.
Statia are 10 locatii de memorie dar, in primele 5 locatii nu se pot programa tonuri CTCSS diferite!

Documentatia statiei o puteti gasi aici.

28 februarie 2010

Weekend-DX's

Propagarea care s-a anuntat inca de acum doua saptamani s-a mentinut, astfel incat au fost deschideri extraordinare in benzile de 17 si 15 m, cu propagare constanta pe durata intregii zile. Statii din nord-vest veneau constant pentru ore intregi la 59-59+, spre seara auzindu-se statii din USA la semnale de peste 9!

Am reusit sa lucrez cateva indicative exotice pentru mine.

USA W8ERN 15m SSB
USA K3IPK 15m SSB
Groenlanda OX3KQ 15m SSB
Franta TL0A 15m SSB
Rep. Burundi 9U1KI 15m SSB
Brazilia PY2GH 15m SSB
Puerto Rico KP4BD 15m SSB
Rep.Dominicana HI3TEJ 15m SSB
Canada VX3CX 15m SSB
Kuwait 9K2OK/NLD 17m SSB
Kuwait 9K2OK/NLD 15m SSB
Arabia Saudita HZ1BL 40m SSB


Cel mai greu a fost de lucrat statia din Groenlanda, caci avea in antena semnale foarte puternice din UK si IR. Din fericire, a solicitat putina liniste pentru statii DX din Europa si atunci am putut sa il lucrez!
Am folosit FT857D+ HM vertical (undita)+LDG Z100.
Una peste alta, a fost fain acest weekend!
73 de yo3hjv

26 februarie 2010

Sky Command II, How to.

A lot of people told me that the instructions for Sky Command found on the user manuals are somehow too complicated and not so easy to follow. Some of them complaint about not succeeding to setup the link.
So, I prepared a step-by-step procedure for the Sky Command II.
I used a TS2000 and a TM-D710. Both are "K-Type" versions. Of course, they were "E" type before the mod was applied...



First of all:


  1. The TS2000x is the TRANSPORTER and the TM-D710 is the COMMANDER.
  2. We assume that both Transporter and Commander radios are Sky Command II capable. Mine was modified to do Sky Comm as they was European version. I applied the “K type mod”.
  3. Before anything, go on MAIN receiver and select a convenient HF frequency. TUNE THE HF ANTENNA!
Very important step (from Marco, a italian HAM): RESET FIRST THE TNC ON BOTH RADIOS!!!

Setup the TRANSPORTER (TS2000):


  1. Select on main channel VHF 144.750. This will be the Transporter to Commander channel.
  2. Select on aux channel UHF 438.500. Select CTCSS on aux channel on 100,0 Hz.
  3. Return to the MAIN section of the radio.
  4. Press MENU and scroll to the Menu #62. Press SUB. After pressing the SUB key, the LCD will show something like “MENU 62A-COMMANDER CALLSIGN”.
  5. Here you input the callsign which will be used by the TS2000, in my case, “YO3HJV-1”. {Yes, the callsign is followed by a number! (Explanation: The COMMANDER and the TRANSPORTER use Packet radio to communicate and they need different SSID’s.)}
  6. The input is made as follows: Scroll the letters with MULTI/CH and advance the position of the letter with MAIN(Back) or SUB (Forward).
  7. Store the callsign with M.IN key.
  8. Scroll to “MENU 62B-TRANSPORTER CALLSIGN” and enter your TRANSPORTER CALLSIGN, in my case, “YO3HJV-2”. Follow the previous #8 and #9 step above.
  9. Select MENU 62C. Here you will select the CTCSS code used for UHF data and voice comm with MULTI/CH. In my case, 100 Hz.
  10. Select MENU 62D and choose with MULTI/CH 1200bd. This is the data speed for Packet comm.
  11. Select MENU 62E and choose “T-PORTER”. This tells the TS2000 that is acting as a Transporter.
  12. Press MENU. The panel control in TS2000 will not work because it is set to work remote only (Sky Command II).

Setup the COMMANDER (TM-D710):


  1. Check if you have MENU 7xx enabled. If not, apply the “K Type” mod.
  2. On the “A” receiver (left) dial 144.500 MHz. On the “B” receiver (right), dial 438.500 MHz.
  3. On the “B” receiver set the CTCSS to 100 Hz.
  4. Go to Menu nr. 700 (COMMANDER callsign) and set the callsign as per step #8 (In my case, YO3HJV-1). Press the DIAL button to store the callsign.
  5. Go to Menu nr.701 (TRANSPORTER callsign) and set the callsign as per step #11 (in my case, YO3HJV-2). Press the DIAL button to store the callsign.
  6. Go to Menu nr.702 and set the same CTCSS as per step #12 (100 Hz).
  7. Go to Menu nr.703 and choose the “role” of the TM-D710. In our case, choose “COMMANDER”. Press Dial.

Now, you should be in COMMANDER MODE.



Press “0” to start the link between Transporter and Commander.

To activate the TRANSPORTER, press “1”. The TRANSPORTER should transmit the callsign (in my case, YO3HJV) on the 2m band, and after that, should retransmit the audio feed from HF frequency set as per step #3.


For the rest of the “game”, read the Sky Command section in the user manual of the TM-D710. Is very explicit.

I also tried (and succedeed) to use the Sky Commander with a TH-D7, but this is another story...

73!




PS
Bob Bruniga has the following ideeas:

IDEAS For SKY-COMMAND III for CLUB ops 22 Feb 07
----------------------------------------------------------------------

SkyCommand II was designed for an individual to have remote control of
his own rig on a one-for-one basis. But there are many applicaitons
for clubs that may want to have a group with access to the SkyCommand
HF transceiver and for all to be able to participate in the group
monitoring while one is transmitting. Here is my WEB page that tries
to optimize this type of operations.

http://www.ew.usna.edu/~bruninga/USNAremoteHF.html

Although we can do Group operations with SkyCommand II, there are some
ideas that could make this better, for new users while being fully
backwards compatible with SkyCommand II systems. An overview of the
required changes for group operations for what I call SkyCommand III
are as follows:

1) Use default Generic COMMANDER and TRASNSPORTER calls so that
everyone can set their radio once, and then be able to use any Sky
Command system that is made public with these same generic calls.

2) Use two PL's on the UHF audio link, so that only one PL keys the
remote SkyCommand transmitter, but the other PL (or none) lets all
members of the group chat on the UHF channel for coordination.
Enable a front panel button for selection of CHAT or PTT choice of
PL while operating Sky Command.

3) Have provisions for the multiple COMMANDER radios to BEACON an
APRS status packet periodically that contains their FCC call so that
they can be identified and so that other SKY-III transceivers can
also see who else is sharing the UHF command channel and operations.

4) Have the TRANSPORTER auto-QSY periodically to the APRS channel
and put out a Sky Command status packet to put the HF asset on the
APRS system map showing the current operating frequency.

5) Some provision for additioanl commands for antenna selections.

6) Allow the D700 to operate UHF COMMANDER link on band A UHF so
that band B can be used for 220, 902 or 1296 reception of Sky
Command Audio.

DETAILS FOLLOW: Each of these concepts is further expanded below.

GENERIC CALLS:

Let the default COMMANDER call be CMDR and the default TRANSPORTER
call be TRPTR, and default TRANSPORTER skycommand PL be 123. while
the default USER or CMDR PL is 88. This makes any user able to
monitor a SkyCommand system out of the box, or to go from one public
skycommand station to another. And he can chat with other skycommand
users on the UHF channel without bringing up the HF TX, unless he
selects the special 123 TX PL.

Another advantage of generic callsign operation is that multiple
COMMANDERS can all be in SkyCommand mode and can see the same front
panel HF radio status at the same time.

ALTERNATIVE (a): Another option may be to have the OPTION for public
systems to allow the TRANSPORTER to be GENERIC on receipt and accept
Sky Commands from ANY callsign in this mode. This way, every
existing COMMANDER can control the radio without having to use a
generci call. This keeps the COMMANDER operator legal, since his
call will be in every packet.

ALTERNATIVE (b): Another option for COMANDERS is to allow for
GENERIC receipt and display of Sky Command data independent of the
TRANSPORTER call. This way, each COMMANDER does not have to change
his transporter callsign for each different GENERIC system that
he wants to control.

UHF PL CONSIDERATIONS:

1) While in Sky-Command mode, the COMMANDERS need a front panel
button to turn on and off sky command PL. This way, all the
group COMMANDERS can turn off special PL and talk/coordinate
back and forth on the UHF simplex channel without keying up the
sky-command radio. This allows very powerful use of HF radio in
local groups, and very simple to implement. I suggest naming
this soft button toggle between "PTT" and "CHAT" as it toggles
between the SkyCommand PL and the non-skycommand PL or off.

SKYCOMMAND COMMANDER OBJECT BEACON PACKETS:

While a COMMANDER is in SkyCommand III mode, it should include some
periodic OBJECT packets to tell others on the UHF frequency who it
is and where it is. This should beacon once every 10 minutes or
each time after the skycommand RX is activated.

FORMAT: THe format for the status packet (in APRS OBJECT format)
would include the MYCALL as the object name and TIME/position, etc.
This is because the actual packet will be originated by the generic
"CMDR" callsign and so without the OBEJCT packet, we cannot tell
who is doing what. Here is a suggeted format:

CMDR>APKxxx:;MYCALL-SS*HHMMSSzDDMM.__N/DDDMM.__W$SkyCommand TX myname

Which will show up nicely on the D700 as:

MYCALL-SS:
SkyCommand
TX Bob

THe TX is transmitted if the SkyCommand PL is set, and an "RX" will
show if the SkyCommand PL is not set.

LIST: On receipt, these objects can go to the normal APRS list or
to the DX list? While in SkyCommand III mode, there should be a
"LIST" hot key on the D7 or D700 radio that will call up this list,
and display only other SkyCommand stations.

PACKET MUTE:??? New COMMANDER radios need to have a 20 dB mute when
monitoring the UHF channel so that VOICE can be heard but packets
are muted. Or is CTCSS Set in Skycommand mode? If so, then it needs
to recognize BOTH the PL's for PTT and for CHAT mode only.

CROSSBAND???? While Sky Commander with TX PL is transmitting on HF,
does the VHF audio link remain up and provide a copy of the transmitted
voice so that all monitoring stations can hear it? This can help in
CHAT mode with PL's and muting packets? More thought here...


SKYCOMAND III TRANSPORTER APRS ANNOUNCEMENT PACKETS:

SkyCommand III needs an APRS Station packet from the Transponder
radio periodically that goes out on the APRS (144.39 in the USA)
channel to beacon the HF radio (IF) status for all surrounding
APRS mobiles (on 144.39). This beacon packet will put the public
SkyComand III station on the MAP, and alert all drivers of its
presence and operating frequency. In most cases, this packet
will go only DIRECT.

TRPTR>APKxxx:;TRPTRCALL*HHMMSSzDDMM.__N/DDDMM.__W$145.550Sky441.550
MHz MM.KKK MHz

Which will show up nicely on the D700 as:

TRPTRCALL:
145.550Sky
441.025MHz
14.123

Notice the Frequency is inlcuded. But the inclusion of the
UHF is optional and if not used, then the HF channel can show.

The Transporter needs to auto-qsy for one-second periodically to
put this out on the APRS frequency and not the SkyCommand channel.
My guess would be once every 10 minutes if no-change in frequency
and within one minute of each frequency CHANGE. THis results in
no transmissions while fine-tuning, but an update within a minute
after a change is made.

Also, the SkyCommand Transporter needs to INITIATE a radio status
packet (in IF... format) once every minute on the UHF command
frequency to update all monitoring COMMANDERS that may begin
monitoring.

Note: Backwards compatibility. For SkyCOmmand II, a BT and BEACON
can be set in packet mode and it will continue to work in SKyComand
mode, but it is not on the APRS channel, only the SkyCOmmand
channel.

ANTENNA SELECTION:

SkyCommand III needs to be able to select ANTENNA on the TS-2000.
ALthough MEMORY channel on TS-2000 can remember ANTENNA 1/2, an
external antenna selection is needed for selecting fixed beams or
othere options on the same band. More later on this subject?

SEMI-PUBLIC OPERATION:

Provision needs to be made in Sky Command III for the uplink command
channel to be on 900 or 1296 MHz and private, while the VHF or
User Listening channel can be on VHF or UHF. In otherewords, the
Sky Command III should be able to operate in RECEIVE-ONLY mode and
give the user the full status of the SkyCommand Radio display, even
if he is not commanding and even if he cannnot press [0] to start
the link.

CONVERSLY, provision needs to be made for Sky Command to use 220, 900
or 1296 bands in place of the VHF audio link. This reduces the demand
on the 2m band for these links. The Remote controlled site may have
to add one of these 220, 902, or 1296 band transmitters just for the
audio, but the D700 should be able to receive this audio in place of
2 meter audio link and still operate in Sky Command COMMANDER mode.

It is very easy to BUILD a skycommand III system TRANSPORTER with a
D700 radio's internal TNC and some external software. So this investment
in SkyCommand III can multiply more than just the new radios sold.
SkyCommand III also willbe fully backwards compatible to II's.

SOFTWARE TRANSPORTER: My next document will describe tha backwards
compatible SkyCommand II+ system that can run on a PC between a D700
TNC and a TS-2000. This PC software can implement many of the advantages
of SkyCOmmand III and be compatible with existing D700's.

More thinking needed.

Bob Bruninga, WB4APR

http://wa8lmf.net/bruninga/aprs/skycommandIII.txt

22 februarie 2010

Un nou mod digital - ROS

Pe 18 februarie 2010, 20:56 UTC a fost transmis pentru prima data un mesaj in noul mod digital ROS.
Acest mesaj a fost trimis de EA2LE din Vitoria (Spania) si receptionat la Universitatea Twente (Olanda), binecunoscuta pentru preocuparile in domeniul receptiei HF (webSDR).
Frecventa pe care a fost receptionat mesajul a fost 7.065 MHz iar distanta parcursa a fost de 1265 km.
Noul mod digital opereaza asemanator cu modul Domino, desi asemanarile se opresc la faptul ca este un mod MPSK.
Cu toate acestea, producatorul il anunta ca fiind un mod Spread Spectrum (FHSS), oarecum impropriu.
Din acest motiv, in USA nu va putea fi folosit deoarece FCC interzice FHSS in benzile HF.
Totusi, pe noi, radioamatorii europeni, nimic nu ne impiedica sa il experimentam, cu atat mai mult cu cat, YO4CVV din Galati deja a trecut la experimentari.
Mi se pare extraordinar faptul ca, in program, a fost implementata o rutina de confirmare a receptiei prin email. In acest sens, programul transmite un email la receptia corecta a mesajului.
Programul permite transmisia cu 16bd sau cu 1bd, acest din urma mod fiidn adecvat pentru raport semnal zgomot foarte mic (-35dbs S/N)!
Programul se poate descarca aici: http://www.box.net/shared/voqoxl976z
In atasament este documentatia aferenta dar si programul in arhiva zip.

Ca la orice mod digital, atentie mare la incarcarea etajului final! Adica, aveti grija ca indicatia power-metrului sa arate aproximativ 75% incarcare din puterea maxima dar indicatia ALC sa nu depaseasca 5%. Cel mai bine este ca ALC sa nu indice nimic.

Frecventele propuse sunt:

* 1.840

* 3.60360 (exclusiv 1 baud)
* 3.60605 (exclusiv 16 bauds)
* 7.053
* 14.101
* 28.300

Lista de discutii despre acest nou mod digital o gasiti aici.

Pagina oficiala.

14 februarie 2010

HF Gateway Voice Operated Squelch

De multa vreme ma "bantuie" ideea de a interconecta undele scurte cu o retea locala in FM. Din nefericire, traficul in HF este, in principal, SSB iar declansarea retransmiterii semnalului SSB receptionat catre FM este destul de dificil de facut cu mijloacele traditionale.

Spre deosebire de circuitele standard de squelch utilizate in majoritatea statiilor radio si care sunt proiectate sa functioneze in relatie cu nivelul de semnal la borna de antena sau de componentele de audiofrecventa din afara spectrului audibil, aceasta schema are in vedere un raspuns la caracteristicile vocii umane. In esenta, este un discriminator FM care nu raspunde la zgomotele intalnite in benzile de unde scurte in modul de lucru SSB (heterodine, zgomot industrial etc).
Pentru prima data, circuitul a fost prezentat de Frank Reid (W9MKV) si David Link (W9YAN) in revista 73 Magazine din august 1982.
Schema este o adaptare a schemei folosite de Motorola in transceiver-ele MICOMM (HF-SSB). Jan Tarsala (WB6VRN ) si Randy Hammock (KC6HUR) au adus unele modificari pentru a putea sa foloseasca circuitul la retransmiterea canalului audio de la NASA pe un repetor local.

Schema prezentata mai jos reprezinta versiunea "originala", adaptata pentru traficul SSB si nu versiunea modificata.



31 ianuarie 2010

TH-D7 PG-4W programming cable diagram

Well, I just received a very nice Kenwood TH-D7G(II) portable VHF/UHF radio.
The main problem was the programming of my favourites frequencies. I started to grab informations from the internet regarding the software I need and, most important, what cable to use.
The internet is very poor in informations about PG-4W, the programming cable, but there are a lot of vendors (from 12 to 25 EUR/cable) which is quite inacceptable for me... I do know how to make a PC to Radio cable!
So, I prepared myself with a RS232<>TTL adapter (with MAX232), one 2,5mm stereo jack and some lenght of cable, a female DB9 COM port and some patience...
First step was to read carefully the User manual where it states that the radio conect directly to the PC.

To be sure I was measuring the voltage on the PC conector at the radio.
It was -6V (RS232 zero logic level) which means the radio has a RS232<>TTL level adapter inside. So, indeed, tha radio connect directly to the PC Com port...
I made the connections, but the software returns (over and over...) a communication error (Timeout).
So, I started to search for a reason. Maybe the software expect some signaling on the other ports of the COM...
I realise that, when I push the "Read Radio" command on PC, on the COM port RTS appeared a voltage swing. Hmmmm..... so, the Radio <> PC cable is not so simple...
So I connected the RTS with CTS and DCD with DTR and, BINGO!!!!, all was OK!
So, here is the diagram of the PG-4W programming cable for the Kenwood TH-D7 portable radio...








 Later Edit: Tom, NV1U sent me the following diagram made on his tablet:

 TNX Tom!


!!!!!!!!!!!!!WARNING!!!!!!!!!!!!!!!
There is NO ERROR!!! The 2,5 mm plug diagram is not reverted!!!
The manual states that the tip is TxD and the ring is RxD. The TxD and the RxD on the plug ARE FROM THE RADIO VIEW
The radio transmit data to the PC by the tip of the plug and the signal goes to the RxD on COM port at the PC!


For programming the radio I use a IBM X61T with a USB<>COM adapter and the MCP-D7G, ver.1.01.

30 ianuarie 2010

OEM GPS inside TM-D710 Front Panel

Acum aproape un an, scriam aici un post despre cum am adaptat un GPS Holux pentru utilizarea pe TM D-710 cu un minim de conectica.
Am cautat un modul convenabil din punct de vedere al dimensiunilor dar si al pretului. Un alt criteriu a fost acela al sensibilitatii de receptie, intrucat antena urma sa fie obturata de capacul de plastic al panoului frontal.
Am achizitionat de la Farnell un GPS Leadtek LR9552, cu antena incorporata. Dimensiunile sunt de 25x25 mm cu o grosime de aproximativ 7 mm!
Am fost impresionat de cat de mic este modulul; practic, antena acestuia este mai mare decat montajul propriu-zis...


Asadar, aveam in cutia cu "maimute" un modul GPS. (De fapt, mai am unul, HI).
Multa vreme am incercat sa gasesc si conectorul mama, corespondent conectorului existent pe modulul GPS. Nu am reusit sa il gasesc iar astazi, am avut ideea salvatoare, asa ca am trecut la fapte!
Am taiat partea de sus a conectorului si am capatat astfel acces la pini, urmand sa lipesc direct pe ei alimentarea si iesirea de semnal NMEA.
Conectorul este foarte mic, astfel incat operatiunea se recomanda celor cu vedere buna si mana sigura.



Pentru lipirea firelor am folosit un letcon de 25W caruia i-am subtiat varful astfel incat sa nu lipesc mai multi pini deodata.
Conform fisei tehnice, modulul GPS are doua iesiri! TxDA si TxDB.


Intrucat nu stiam care dintre ele este cea care furnizeaza semnalul necesar, am lipit pe toti pinii cate un fir. De fapt, nu imi trebuiau si intrarile la modul, dar, pentru ca mi-a iesit prima lipitura, am continuat, asa, din inertie...
Ulterior, dupa identificarea pinului corect, am dezlipit celelalte fire, ca nefiind necesare.
Proba de functionare am facut-o folosind conectorul lateral al panoului de control si o sursa de alimentare exterioara (o baterie 6F22 de 9V si un stabilizator LDO de 5V). Pinul 2 de la GPS este cel care furnizeaza semnalul necesar (TxDA).

Am desfacut panoul capacul panoului frontal si am desfacut saibele de fixare de la potentiometrii de volum/squelch si de la optical encoder.


Cele doua blocuri potentiometrice sunt conectate pe doua bucatele de cablaj si, desi sunt codificate diferit, in realitate sunt identice ca valori si schema electronica, deci nici o grija ca le-ati putea incurca intre ele la montaj.
Pe placa cu componente exista o folie profilata destinata protejarii cablajulu iin zona decupata a capacului din spate. O puteti ridica fara grija, nu este prinsa nici de cablaj si nici de capac. Sub aceasta folie exista un conector flexibil si este bina sa aveti mare grija cu el!



Desfacem cele doua suruburi care fixeaza cablajul de masca si ridicam montajul.
Conectorul de 2,5mm se gaseste in stanga afisajului LCD si se observa ca este vorba de o mufa care are si circuit de autodeconectare.
In figura de mai jos se vede clar pe care dintre pini conectam firul de semnal de la GPS.


Dupa ce lipim firul de semnal de la GPS, asezam cablajul la loc in panou si folosim o degajare in PCB pentru a trece firul in spatele carcasei.
In stanga conectorului RJ45 ce foloseste la conectarea panoului frontal la unitatea centrala observam un regulator LDO. Acesta este regulatorul care furnizeaza 5V montajului.
Intre regulator si conector, pe cablaj este marcat traseul de 10V. Acest marcaj este facut exact pe traseul de GND, unde ne vom conecta cu pinul 1 de la GPS.
Pinul 7, de +5V de la GPS se va lipi direct pe pinul regulatorului LDO.



Dupa lipirea firelor de la GPS, putem face o proba:
Conectam panoul de comanda si pornim statia. In meniul APRS selectam la INPUT: GPS.
Pornim TNC-ul in regim APRS12 si apasam butonul PMON pentru a observa informatiile furnizate de modulul GPS. Dupa aproximativ 2 minute, la mine a inceput sa dea informatiile de pozitie.
Cu ESC ne intoarcem in regimul de afisare a frecventei si apasam POS. Pe afisaj ar trebui sa observam deja coordonatele locului in care ne aflam, inclusiv cu afisarea careului (KN34BK in cazul meu).
In partea din stanga sus a afisajului, va clipi "GPS"; semnificatia este aceea de semnal NMEA coerent.



Oprim statia si deconectam panoul de comanda pentru etapa urmatoare.
Dupa ce am verificat functionarea corecta, eliminam de pe capacul din spate ghidajul destinat unui beeper (nu stiu care era rostul HI). Aplicam o bucata de folie dublu adeziva pe care vom lipi modulul GPS, chiar pe partea cu antena de receptie. Am observat ca nu influenteaza cu nimic performanta receptorului GPS.


Fixam modulul dupa cum se observa din imagine si inchidem capacul de la panoul de comanda.

Din acest moment, avem un TM D-710 cu GPS incorporat in panoul frontal!

Imi cer scuze pentru calitatea imaginilor dar am folosit ce aveam la indemana, adica un telefon mobil.

Mai jos sunt cateva informatii despre modulul GPS folosit:


{Some time ago I made a GPS unit for TM D-710. Now, with a little help from Leadtek, I manage to embedd a GPS OEM unit inside the TM D-710 Control panel! Yes, I just put a GPS inside the "box". }

20-channel, miniaturized single chipset module GPS with integrated ceramic antenna

The Leadtek GPS 9952 module (LR9552) is a high sensitivity and very compact smart antenna module, with built in GPS receiver circuit. This 20-channel global positioning system (GPS) receiver is designed for a wide range of OEM applications and is based on the fast and deep GPS signal search capabilities of SiRFStarIII architecture.

Features:

  • Based on the high performance features of the SiRFstarIII single chip set
  • 20 channels with All-In-View tracking
  • Compact module size for easy integration: 25x25x8.4 mm
  • Fully automatic assembly: reflow solder assembly ready
  • Hardware compatible with SiRF GSW3 v 3. 2.2 software
  • Multiple I/O pins reserved for customizing special user applications
  • Low power consumption: up to 70 mA, and extra high sensitivity: -158dBm
  • RoHS compliance
  • Cold/Warm/Hot Start Time: 4 2 /38/ 1 sec . at open sky and stationary environments.
  • Reacquisition Time: 0.1 second
  • RF Metal Shield for best performance in noisy environments
  • Multi-path Mitigation Hardware
  • RS232 level for GPS communications interface
  • Operating temperature: -20 ℃ to +60
  • Protocol: NMEA-0183/SiRF Binary (default NMEA)
  • Baud Rate: 4800, 19200, or 57600 baud (default 4800)
  • Ideal for high volume mass production (Taping reel package)
  • Cost saving through elimination of RF and board to board digital connectors

TECHNICAL SPECIFICATIONS:

Chipset SiRFstarIII single chipset (GSC 3f )
General Frequency L1, 1575.42 MHz (C/A code 1.023 MHz chip rate)
Channels 20
Sensitivity -159 dBm

Accuracy

Position 10 meters, 2D RMS
5 meters 2D RMS, WAAS corrected
<5meters(50%)>Velocity 0.1 meters/second
Time 1 microsecond synchronized to GPS time
Datum Default WGS-84
Other selectable for other Datum

Time to First Fix (TTFF)
(Open Sky & Stationary Requirements) Reacquisition 0.1 sec., average
Snap start 1 sec., average
Hot start 1 sec., average typical TTFF
Warm start 38 sec., average typical TTFF
Cold start 42 sec., average typical TTFF

Dynamic Conditions

Altitude 18,000 meters (60,000 feet) max.
Velocity 515 meters/second (1000 knots) max.
Acceleration 4g , max.
Jerk 20 meters/second 3, max.

Power

Main power input 5 +- 10% VDC input
Power consumption ≈350 mW (continuous mode)
Supply Current ≈70 mA
Backup Power 1.5 +- 10% VDC input.

Serial Port

Electrical interface Two full duplex serial TTL interface.
Protocol messages NMEA-0183/4800 bps (Default)

Time-1PPS Pulse

Level RS232 or TTL
Pulse duration The 1PPS pulse width is 1 μs, this 1PPS is NOT suited to steer various oscillators (timing receivers, telecommunications system, etc).
Time reference At the pulse positive edge.
Measurement Aligned to GPS second, ? 1 microsecond

Environmental Characteristics

Operating temperature range -20 deg. C to +60 deg. C
Storage temperature range -20 deg. C to +65 deg. C

Physical Characteristics

Length 25 mm
Width 25 mm
Height 8.9 mm (with 4mm antenna)

6.9 mm (with 4mm antenna)
Weight 13.0/8.0g

WARNING!

The Leadtek 9552 OEM GPS comes in two "flavours": RS232 and TTL I/O.
Be sure to choose and order the RS-232 version! They both share the same user manual/leaflet!
Only the RS-232 works with the TM-D710!!!

Postări populare

OnLine logbook YO3HJV

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