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[aprssig] Re: d700 miniDIN

scott at opentrac.org scott at opentrac.org
Sat Apr 16 05:17:06 UTC 2005


I discovered something interesting on my TM-271 - seems that the 1200 baud
receive signal isn't fixed level.  I was running a tracker off of it and
found that it wouldn't show the channel as busy with the volume down.  It's
pretty easily fixed by using the squelch output instead, but I thought the
mini-DIN signals were supposed to be standardized.

Anyone seen this on other radios?

Scott
N1VG

-----Original Message-----
From: aprssig-bounces at lists.tapr.org
[mailto:aprssig-bounces at lists.tapr.org]On Behalf Of Stephen H. Smith
Sent: Monday, February 07, 2005 12:03 PM
To: TAPR APRS Mailing List
Subject: [aprssig] Re: d700 miniDIN

...
     De-emphasized squelched audio similar to what comes out the
speaker, but at a fixed level unaffected by the volume control. It is
sometimes labled "1200 Baud Receive" or "RXD".
...





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