[R-390] R390A going deaf

[Glenn Little WB4UIV]

You possibly have a bad RF coil for that band.
It is not uncommon to have a bad coil for the 80 M band.
A lot of the radios were originally used on nets in this frequency 
rand with high power transmitters near by.
Check the capacitor that resonates this coil.

73
Glenn
WB4UIV


At 08:29 PM 1/24/2011, John L. Ahrens Sr. wrote:
>  Hello Group:
>  I have  a strange problem with my R390A just started Wednesday nite i
>notice that the signal where getting weaker and weaker i was on 3.880
>MHz than i changed over the to another rec. and found the the signal
>weren't getting weaker the R390 A was going deaf so i check some diff.
>bands and found that the 3mhz band is deaf low signals.
>      so not having any test gear i used the cal. for a test signal all
>other band seem to be OK with 50db signal on meter but the 3mhz band
>only show 10db signal so with all of the R390A  master out here could
>someone suggest a possible cause...
>
>                Thank You for any help
>
>             John kc2fxe
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