[1000mp] Noise on Carrier

Fri, 13 Feb 2004 18:08:53 -0000

Before you assume that this is a power supply problem eliminate the
possibility of a ground loop. disconnect all the accessories from the radio
and connect it to a dummy load. Then listen to it with a highly attenuated
second receiver. If you still hear the noise it's probably the power supply.
If not try reconnecting one accessory at a time until you find the source of
the problem.

Steve .. AI7W

-----Original Message-----
From: [email protected]
[mailto:[email protected]]On Behalf Of Winston Rogers
Sent: Friday, February 13, 2004 00:55
To: [email protected]
Subject: [1000mp] Noise on Carrier

While monitoring my Mark V CW signal today with a highly attenuated second
receiver I noted some fuzz (probably AC) ripple on my carrier.  It is not
terrible but noticeable at slow speeds and with lower frequency tones, and
more obvious when key down. I asked a friend to check me, and he confirmed
it was there..  I suspect a filter cap in the power supply leaking a little.

Anyone have comments or a like experience?  No, a key click mod has not yet
been installed.

Win W0LZ

_______________________________________________
List Moderator: Richard Lubash N1VXW
1000mp mailing list
[email protected]
To Change Options or Unsubscribe:
http://mailman.qth.net/mailman/listinfo/1000mp