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« on: 2020-01-31, 02:23:19 »
After much trial, I have a SignaLinkUSB keying and transmitting digital modes using MixW2 software running on a Windows7 Pro laptop. I imagine that similar settings will work with Fldigi, MMTTY, HRD or other digital software. Note this is an AFSK solution, not FSK. The benefits of using the SignaLinkUSB and AFSK are cable reduction, full control of audio in/out of the Control-RRC, and the ability to use all the digital modes, not just RTTY.
Hardware and software configuration as follows:
Hardware:
1. Install an RS-232 serial cable between the TS-480 and Radio-RRC, straight through wiring.
2. Install CAT5 cable between SignaLink OUT and Control-RRC AUX/MIC connector IN.
3. Strap the SignaLink I/O header according to the RemoteRig manual, page 188; pin 3=mic signal, 4=mic ground, 5-PTT, and 6-ground
4. Connect the headphone out on TS480 panel to SignalinkUSB SPKR IN for decode audio; stereo cable.
Software
1. Plug the SignaLinkUSB into the computer and select the USB audio codec for sound card playback/recording devices. Set them to be the default for the computer for now.
2. Make sure the speaker volume control is set to 100% so the SignaLinkUSB will have plenty of audio to work with.
3. See attached MixW2 config screens. Note that your COM ports may be different. Check the computer Device Manager and look for the port assigned to the SignaLinkUSB.
4. Set the Control and Radio RRC's as shown on page 192 of the RemoteRig manual
5. My Control-RRC Serial, Keyer and I/O settings are attached.
Test and Operation
1. Plug headphones or speaker into the MON jack of the SignaLinkUSB to monitor what is being transmitted
2. Connect radio to a dummy load and set to low power to test.
3. Set TX out on the SignaLinkUSB to zero and select RTTY mode.
4. Press the [TX] button in the software and watch that the radio is being keyed; you may have to advance the TX control on the SignaLink USB.
5. Watch ALC. Increase TX out on the Signalink to keep ALC below top of scale. Press [RX] to stop.
6. If the radio PTT is enabled and you heard the mode being transmitted, you are ready to go with other digital modes as well.
Note: I also use this configuration to send CW, as well as feedback Band, Mode and Frequency to my logging software (N3FJP).
I hope this works for you and answers some of the questions I see being posted with sketchy documentation.
Questions? I'll try to assist if you email me at wu6x at hotmail dot com.
73, Dennis - WU6X