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Tigertronics Signalink USB

Signalink USB

Link to Signalink on Waters & Stanton website

Signalink's are OK if you want to throw a system together with little or no hacking, they plug into your PC USB socket and come with a selection of different radio cables. Frankly, I wasn't impressed with the audio quality using a Signalink, and they DO have a well documented noise floor issue. This can make it difficult to get VOX thresholds set correctly inside the program that you run on the PC.
I must point out, that I have NOT used a Signalink with any of the amateur data modes like RTTY etc. Many amateurs DO use them for data, and seem perfectly happy with the results..

How does it work?
You plug the Signalink into your PC with a USB cable. The Signalink then "appears" on your PC as an external soundcard.
Your node radio then has its microphone, speaker, PTT and ground connected to the Signalink.
Point your software (Teamspeak / Skype etc) towards the external soundcard (the Signalink). Lets say you use Skype... Call someone and their audio will exit through the Signalink, which will detect the audio and connect your node radio PTT to ground and pass the audio to your node radio microphone input line. Your node radio will transmit that audio to your handheld / mobile radio.
Similarly, if your transmit with your handheld / mobile radio, your node radio will receive your audio and pass that audio to the Signalink microphone input line, which in turn, would be passed on to Skype.
Tigertronics (the manufacturer) can supply a cable to connect to almost any amateur radio transceiver at no extra cost with each Signalink. They also offer an un-terminated cable for connection to commercial types  such as Tetra and DMR. You would have attach the proprietary connector at the radio end of the cable yourself.
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