Msg Nr. : 90791 Da : LX1KX Per : YAESU @WW Tipo/status : B$ Data/ora : 0101/1932 Dimensione : 4814 Titolo : Modifica 9600 per FT5100 Bid (Mid) : 33699_LX0PRG Transforming the Yaesu FT-5100 for 9600 baud *** Do read these instructions carefully *** Hello user of a FT-5100. The following instructions describe one possibility to transform the FT-5100 (not tested with a FT-5200) for Packet Radio using 9600 baud. I want to point out that before starting, you should be familiar with a soldering iron, and have some knowledge in electronics. If not, ask a friend who knows how to handle this. The transformation does not require a genius, but the transceiver does not pardon mistakes. Let's start: You will need a schematic diagram, a soldering iron, a capacitor of 100nF, two resistors of 30kOhm, 30cm (1 foot) of 4 wire cable and a 4 pin socket. Open the transceiver. (Attention: you lose your warranty!) Solder one side of the 4 wire cable at the 4 pin socket, no matter with way. Thereafter, you need to enter the cable into the transceiver. Have a look at the rear side. On your right, you see a fourth, not used exit. It's covered by a small piece of polyvinyl, held by two screws. Unscrew it and you have a clean possibility to get the cable inside. Doing the transformation at the reception side: Get the LF at the de-modulator. That's pin 9 at IC MC3372ML (Q404) on the IF unit. Solder one wire at this pin. Therewith you are already now able to receive 9600 baud on 70cm and simultaneously, you are still able to work with 1200 baud on 2m or 70cm using the data-connector. You may also still do phone using the microphone connector. Doing the transformation at the transmitting side: First, solder the resistor of 30kOhm at pin 13 of IC MB1504PF-G-BND (Q701) on the 430-PLL-UNIT. Put into series the capacitor of 100nF. Now, solder the second wire at the capacitor. Now, the FT-5100 is nearly ready for transmission. Let's do the PTT switching. Several tries using the data-connector did not work. What happens to be ok for 1200 baud has to considered disastrous for 9600 baud. But using the microphone jack, it is possible. Open the front panel and solder the third wire to pin 6 of the connector. When this has been done, all PTT problems are gone. Last but not least, solder the last wire to ground on each side. That's all. Not too difficult, isn't it? Please, check all soldering before the re-assembly. This may avoid later trouble. The transformation is done. Now, you just need to connect the TNC. Because everybody connected his socket in a different way, have a look at the TNC manual how to connect the right pins. Now you may do your first try. In general: After the re-assembly, it should work immediately with 9600 baud, of course your TNC has to be set-up properly. I owe an USCC card with 3 channels and I am using this set-up without trouble. TX-delay may be adjusted till a minimum setting of 7ms. You should always keep in mind, it's no data transceiver, it's still a phone transceiver. Do not expect superb results. Nevertheless, until today, I do not see a disadvantage compared to commercial 9600 baud transceivers. ******************************************************************************************** Disclaimer: You may not declare me being responsible for any destruction due to this transformation. It should show you hoe it is possible to use a FT-5100 for 9600 baud. I never had problems, why should others... ******************************************************************************************** This transformation is probably not the very last you may get out of this transceiver. I am always looking for other possibilities to improve it. Have fun and a lot of success using 9600 baud. 73 de Serge, LX1KX @ LX0PRG.LUX.EU Msg Nr. : 12094 Da : VE2JVB Per : YAESU @WW Tipo/status : BF Data/ora : 0310/1756 Dimensione : 5654 Titolo : Modifica 9600 baud per FT5100 Bid (Mid) : 14854_VE2CRL DDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDD @SUBJECT:RE: 9600 BPS RADIOS N @FROM :srbible@nps.navy.mil N Date: Sun, 13 Feb 1994 14:59:13 -0500 From: srbible@nps.navy.mil (Steven R. Bible) To: amsat-bb@AMSAT.Org Subject: Re: 9600 bps radios There is also mention of the Yaesu FT-5100 dual-band transceiver being 9600 baud ready in the February 1994 QST (Packet Perspective p.98). Stan WA1LOU writes that he spoke with Chip Margelli K7JA of Yeasu Customer Service. The bottem line is: Yes the FT-5100 will do 9600 baud out of the box. The Japanese manufactures have agreed upon a standard. The spec calls for a transmit signal input level of 2 V p-p at 10 kohm. The receive output as 300 mV p-p at 1 kohm from 50Hz to 5 kHz, + or - 3 dB. All transceivers that conform to this standard will provide a 6-pin miniature DIN jack for the 9600 baud modem interface. However the FT-5100 was developed prior to the adoption of the standard, so it does not feature the DIN port. According to Chip, future Yeasu radios will feature the 9600 baud standard port and optimization. Icom and Standard are mentioned as other manufactures adopting the standard. Stan says they [QST] will "review the capabilities of each in a future issue." [the above is paraphrased from QST] I visited the HRO store in Sunnyvale and looked at the FT-5100. There is what seems like a miniture jack connection on the back of the radio, not a DIN as the future standard will provide. I didn't ask to see the manual from the sales people. The questions I would liked answered are the same as Walt and John expressed in their missives. Think about it - 9600 baud is now in the reach of everyone. Especially think of the impact it will have on the 9600 baud pacsats. The microsats required at least one all mode radio for the PSK downlink which is not an inexpensive radio. Now, if the Icom or Yeasu radio can do both the up and down link for $700.00 more people will (hopefully) just on the bandwagon. Don't flame me for the price, I for one have been struggling with 9600 baud trying to convert my Kenwood TR-751 and TR-851. I still don't have it right and I have had to repair my TR-851 twice after the PLL went out and I zapped the FM chip. How can you advocate others to get on the air will 9600 baud when you tell them to open up and possibly zapp their $700.00 radio? It would be nice to learn if these radios can be used for the UoSats and Kitsats. Anyone have any experience with either the Yeasu or Icom radios? 73 Steve N7HPR srbible@cs.nps.navy.mil (Naval Postgraduate School, Monterey, CA) Msg Nr. : 139791 Da : IW3GRX Per : MOD Tipo/status : PN Data/ora : 0121/2330 Dimensione : 2038 Bid (Mid) : 8719_IW3GRX Titolo : Modifica 9600 baud per l'FT5100 Un saluto de IK7XWZ Sergio. Per la modifica a 9600 Baud dell'RTX YAESU FT-5100 esiste gia' un testo che ci dica come fare, ma questo e' in tedesco ed in spagnolo ed io ho avuto molte difficolta' nella traduzione. Ora mi e' capitata sottomano la rivista ELETTRONICA FLASH del mese di settembre 1994 e sfogliandola ho visto che finalmente qualche buona anima si era degnata di riportare dettagliatamente la mod 9600 per il suddetto apparato RTX (lo stesso discorso vale anche per FT-5200, con la differenza che questu'ultimo non ha la presa posteriore predisposta in fabbrica per la modifica). Riporto fedelmente quello che era scritto sulla rivista (tranne gli schemi, data la loro complessita'). Yaesu FT-5100 a 9600 Baud. ^^^^^^^^^^^^^^^^^^^^^^^^^^ Questo RTX e' un bibanda vero, in quanto presenta realmente due rtx distinti con in comune la sola logica di controllo. Abbiamo allora due segnali per ogni banda, piu' il comando PTT che possiamo prelevare dalla presa "DATA" situata sul pannello posteriore dell'RTX. Purtroppo la casa costruttrice ha prelevato i segnali che fanno capo a questa presa dopo alcuni stadi, non direttamente dai due discrimi- natori, come faremo noi. Il segnale TX VHF e' da portare al pin 13 (mod) del modulo PLL/VCO in VHF (144 PLL UNIT) ovvero il punto di unione tra C1162 e C1190. Il corrispondente TX UHF e' da portare al pin 13 (mod) modulo PLL/VCO in UHF (430 PLL UNIT) ovvero il punto di unione tra C1169 e C1189. I due segnali in ricezione RX VHF e UHF sono da prelevare rispettivamente sul pin 9 del chip MC3372ML (Q403) e sul pin 9 del MC3372ML (Q404) entrambi situati sulla IF UNIT. La schedina IF e' quella parallela al frontalino anteriore, quella con 6 trimmer visibili dall'alto. Se lo smontaggio del frontalino anteriore non ci spaventa, possiamo prele- vare il comando del PTT direttamente dal pin 6 della presa del microfono, oppure sulla presa data in/out posteriore. E' tutto. Sperando di aver fatto cosa gradita vi saluta cordialmente IK7XWZ@IK7GFP.IPUG.ITA.EU Sergio.