[R-390] Low Sensitivity 8-16 Mhz

[Jim M.]

Solved ! - After some experimentation and swapping of coil cans, I suspected 
the fixed mica capacitors inside the Z205 can had failed or drifted in 
value.  Opened the can and replaced the 180 pf and 68 pf mica caps with new 
ones, and the problem is solved!  So not only are the large BBODs a problem 
in these radios, even the little mica caps can go bad with age.  73 Jim N4BE


----- Original Message ----- 
From: "Jim M." <jmiller1706 at cfl.rr.com>
To: <r-390 at mailman.qth.net>
Sent: Tuesday, February 13, 2007 10:39 AM
Subject: [R-390] Low Sensitivity 8-16 Mhz


> On bands between 8 and 16 mhz the hearing on this 390a goes down 
> considerably.  Cal signal on other bands is about 50 dB, but on the 8-16 
> band it is down to 20 dB.  I suspect something in the RF coil set for that 
> 8-16.  I went through the RF alignment procedures and it appears to align 
> correctly but the signal levels are very low compared to other bands.  Any 
> ideas?  Jim N4BE
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