From:[email protected] <[email protected]> On Behalf Of Thomas KF7RSF via groups.io Sent: November 22, 2024 5:09 PM To:[email protected] Subject: Re: [VARA-MODEM] VARA HF Anything obvious?? #newuser #varahf
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Keith,
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Post a screenshot of the VARA HF TNC waterfall when this occurs. A common reason for this "Channel busy" error is having the Filter 1 set to too narrow a bandwidth. It needs to be set to 3.0K. Received bandwidth in the waterfall must reach the two vertical red lines, minimum.