> Hi guys,
> 
> Built a link radio out of a MASTR II mobile a while back.  
> 444.575 TX, 
> 447.575 RX.

It's the LO multiplier chain that you're hearing.  145.460 * 3 + 11.2 =
447.580 (447.575).  

> After having the link installed in my basement for a few days, I 
> realized that it's throwing a fairly strong dead carrier on VHF at 
> 145.460 or thereabouts, but ONLY when it's sitting idle in Receive. 
> When the radio is transmitting the carrier generated by the receiver 
> disappears.

You don't hear it when the radio is TXing because the T/R relay
disconnects the receiver from the antenna.

                                        --- Jeff


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