[R-390] R390 Low Gain at 8 kHz BW

Cecil chacuff at cableone.net
Wed Jun 5 19:42:51 EDT 2019


Is this a 390 or a 390A?

Cecil
K5DL

Sent from my iPad

> On Jun 5, 2019, at 6:23 PM, <jgedde at optonline.net> <jgedde at optonline.net> wrote:
> 
> I'm having a strange issue with my R390.  It's all aligned and working very
> well, except for the 8 kHz bandwidth.  I see about a -12 dB loss in signal
> when set for 8kHz.  All other bandwidths are OK.  The bandwidth switch is
> clean and passes continuity tests.  Any ideas?
> 
> 
> 
> John
> 
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