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Gordon Gibby
¿ªÔÆÌåÓýGeewhiz, I don¡¯t think this is hard at all. ? I don¡¯t quite understand exactly what you¡¯re doing. ?Get some sort of sound card interface, either a signal link or a homebrew,Connect up the microphone connection to the Microbit X microphone.
Connect up the speaker connection to the MicroBit X speaker output.
Connect up the push to talk connection to the MicroBid ask push to talk.
Put ferrites on the microphone and speaker connection.
Connect the signal link or sound card to your computer. ?Put ferrites on that connection also...
Start with relatively low power, you can set that by setting the transmit gain on the signal link fairly low. That will reduce your chance of having radio frequency interference.
Don¡¯t connect anything at all to the raduino USB interface. ?It is a very vulnerable point for radio frequency interference.
At this point you should be able to do the WINLINK transmit level test without any problem.
Pick any legal frequency and initiate a call to any WINLINK station, don¡¯t try to connect yet, just make sure he can get through a series of calls without crashing. ?You need to be in the CW/digital portion of the band
Finally, try to connect to WINLINK station. Remember they center frequency is 1.5 kHz up from the dial frequency. And they all use upper side band.
Where are you located? If you can connect to Florida, I can try to listen for your signal.
It always takes a bit to get this going but once you figure it out it¡¯s easy.
Cheers
Gordon
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