![]() Note that Scanners and the ham radios may have bandwidth issues. ![]() ![]() The signal is 30+ kHz wide signal which prevents narrow FM modulation receivers from being used. If you are not compensating for doppler effect the receiver bandwidth should be set to 50 kHz or so to receive all the data of the modulated signal. The dedicated receiver will take care of the doppler issues as will some plugins with some of the SDR software if you are concerned about this. It WILL give you better images if you do compensate for this obviously, but not needed. The one I used is pictured below and I use this in conjunction with a Signalink USB Soundcard I had laying around. This seems to work by far the best for me. This ideally should be a circular polarized one. Here are some of the common antenna types: There are many different designs and you may even have some luck with a good old fashioned 2m ham radio antenna.
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