[Johnson] Ranger VFO chirp on 40 Meters

[Eddy Swynar]

On 2014-03-07, at 7:43 AM, keckerle at chartermi.net wrote:

> 
> I have a server chirp on 40 meters and up.  There is no chirp on 160 and 80 meters.  I have verified that the OA2 voltage regulator in the VFO compartment is functioning correctly.  Any suggestions would be greatly appreciated.
> K8FE




Dear OM,

Is the chirp the ABSOLUTE worse on 40-meters, than on the other high bands...?

I had a similar situation here with my Ranger years ago, that I traced back to feedback into the VFO from the rest of the rig. Keep in mind that on 40-meters, the VFO frequency operates "straight through" to the final PA stage: no doubling / tripling. 

Why I never had the same troubles on 160-meters is a mystery to me---perhaps the fundamental 1.8-MHz signal frequency is low enough that it was somehow "immune"...?---not so on 7-MHz, however...

~73~ de Eddy VE3CUI - VE3XZ