[Hammarlund] HQ-180 question

[RAY FRIESS]

the socket you refer to on the back of the radio is for a muting function.  There may be a jumper across it internally, which allows the receiver to function.  If you take that jumper off and connect relay contacts across it using the socket, you can put the receiver into standby when going to transmit and opening the relay contacts connected to it.  When in receive mode, the relay contacts should be closed to short across the terminals the socket is connected to so it will receive.

 


 
> From: s.dresser at verizon.net
> To: hammarlund at mailman.qth.net
> Date: Sun, 15 Nov 2009 13:56:41 -0500
> Subject: [Hammarlund] HQ-180 question
> 
> Hi all,
> 
> I'm new to this list, and new to a recently acquired HQ-180 for which I don't yet have a manual. On the back of the receiver, between the speaker terminal and ground, there's a terminal labeled "AGC". What is its purpose?
> 
> Also, I notice what looks like a 100-volt socket on the back of the receiver. Is it really 100 volts, and when is it active?
> 
> Thanks in advance for your help.
> 
> Steve (WA1RTB)
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