[TenTec] Orion 9 MHz filters

[Ken Brown]

Hi Barry,

If the first local oscillator and the second local oscillator are 
shifted equal amounts and in the right relative directions, then the 
passband (at the antenna port) that is detected can be shifted while 
maintaining a constant beat note with all the signals in that passband. 
In the Omni VI this is what is being done in the second IF (the 6.3 Mhz 
IF) by shifting the second and third local oscillators (which are really 
just one single VXO) equal amounts in the same direction. So it is 
certainly possible that this could be done. I do not know whether the 
Omni will do it.

Ken, N6KB