SOLVED - I knew it had to be something simple. Me being myself, I thought that since it is a digital mode (FSK), and the radio has no sound card and, the digirig 9600 cable has a GREEN DIN connector, it should plug into the Serial jack on the Digirig Mobile, right? Wrong! In a last ditch effort I went back and looked at the product page and it tells you right there to plug it into the BLACK Audio jack. Duh! Thanks to everyone that provided suggestions.
The FYT-897D is new to me. I am trying to run UHF, FSK 9600 FSK packet to access a BBS that is running the same, and the operator accessed it with a FT818.
I have a digirig and the special 9600 cable that goes to the data port on the radio. The Win 11 laptop has the correct driver and the digirig is recognized as Com 3 when plugged in. The applications are UZ7HO Easyterm and High Speed Sound Modem. I believe that I have the settings correct in the radio but issuing the connect cmd in the terminal, it does not key the transmitter.
I figure this is a long shot, but, can anyone assist?
Thanks but, it is not a “sound modem” FSK shifts the carrier frequency +/- center frequency. I tried turning on everything and anything. The Terminal and Modem are communicating. It’s just not keying the radio. I’ve swapped the cable to the Digirig Mobile and the Digirig without any success. The only thing I can’t change is the 9600 cable since I only have one. I’ve tried shorting tip to rings, and rings to rings on the cable to the transceiver and it doesn’t activate the PTT like the Digirig Lite. I don’t know what else to look at or, try.
since you’ve selected comport ptt, can you connect the digirig audio/ptt cable to the radio only, then jump the sleeve and ring2 of the plug to see if your radio goes into tx?
Incorrect.
The HS Soundmodem operates in analog mode, sending tones to the transmitter which does FSK NOT AFSK.
FSK (Frequency Shift Keying) with 9600 baud (bit/s) or faster
The frequency of the RF carrier is directly shifted. This requires a direct access to the modulator of the FM-radio transmitter. The receiver signal has to be tapped directly at the demodulator / FM-discriminator. Some radios with too narrow IF-filters need to be modified before use with FSK. Advantage: much higher transmission rate compared to AFSK. 9600 baud data rate is the maximum reasonable speed which can be used with a standard FM radio channel.
9600 baud G3RUH FSK, growing mode for fast Packet-Radio
As data traffic constantly grows, more and more nodes move to faster transmission on the user access frequencies. New digipeaters skip the slow 1200 baud mode and use 9600 from beginning. In Germany (2000), 50% of the user access frequencies use 9600 baud, i.e. 80% of the total data uses the 8-fold speed.
The FSK modulation standard was defined by James Miller, G3RUH. It can be adapted for various radios and gives a maximum yield of speed for a given channel bandwidth.
I had the cable plugged into the Serial jack on the Digirig and it needed to be plugged into the audio jack.
When using a mode like FT8 with a Digirig Mobile, there are two cables, one for CAT/PTT, and one for audio. In the 9600 FSK mode, there is only one cable from the Digirig Mobile to the Data port on the back of the radio. That cable has a green plug on the radio end, and the Digirig Mobile serial jack is green. I thought that green should logically go to green. And that was my error.