[Orion] Orion Panel Heat et al

[Grant Youngman]

> The ARRL review indicates that by manually selecting the 500 Hz
> filter, the radio noise comes up appreciably.  Mine does the same. 

Interesting -- especially since I'm waiting delivery on 1.8Khz and  500Hz 
filters from T-T :-)

Perhaps the real question is what happens to the signal on a relative 
basis, and if something about the 500Hz filter and/or gain stage to 
equalize levels is affecting the effective SNR.

Grant/NQ5T