[R-390] Carrier Level Meter reading with calibration

[Roger Ruszkowski]

Eric,

You wrote,
---
 Calibrator circuit .   What sort of variation should be expected in the 
Carrier Level Meter reading for different calibration frequencies?  Calibrating  
my 390A at frequencies XX.700 MHz gives zero beat Carrier Level Meter dB 
readings  of between 20 and 30dB in the 0 to 15 MHz range.  At 16.700MHz the 
reading drops down to only 0dB,  (although the signal off zero beat is still 
easily audible). From 18.700MHz to 24.700MHz , the carrier level at zero beat 
stays at 0dB.  It goes back up to 10 dB until 29.700 MHz, before dropping down 
to 5 and 0 at  30.700 and 31.700MHz. I have checked the RF deck alignment using 
the procedure outlined by Dallas Lankford in Hollow State Newsletter 29 , and it 
seems fine.
--
A lot.

---
Each megahertz band uses a different crystal harmonic being produced at a different oscillator level.
As the signal goes through the octave filters (.5-.999, 1-1.999, 2. 3.999,  ... 16- 31.999) the pass level is different.
The VFO may even have different levels from end to end or in between. What the output level will be on any frequency
is just the sum of many parts and relative to nothing. As long as the out put signal is use full to your ears, your receiver is OK.

Roger L. Ruszkowski AI4NI  going over 64 this summer myself.