[1000mp] Mark V Field: AGC Getting Swamped

[Pete Smith]

At 12:21 AM 6/6/2004, you wrote:

>Recently acquired a virtually new Mark V Field.  Have been an Icom user 
>for many years and finding the learning some of the Yaesu protocols a bit 
>different than Icom...but that will be overcome in time.
>
>My real challenge right now is what seems to be the AGC getting swamped by 
>relatively strong signals (S 9) around 5 Kcs away.  I could understand 
>this happening if the "offending" station were maybe 2 or 3 Kc, but not 
>5.  The AGC gets pumped to the point that the receiver becomes desensed.
>
>Have played around with some of the QRM tools..VRF, IDBT, adjusted the AGC 
>to fast, etc.  All seem to help a little bit...but not enough.
>
>With my Icom 756 Pro sitting side by side with the MK V Field and using 
>the same antenna, several and repeated A/B tests indicate the Icom is NOT 
>suffering the same experience.
>
>Any suggestions?
>
>Read in the reflector archives about a pending INRAD roofing filter to 
>help with close in IMD.  Is this the solution?
>

Harry, check to be sure that both noise blanker gains are turned to zero 
(in the menu system) and that the blanker itself is turned off.


73, Pete N4ZR
The World HF Contest Station Database
was updated on June 5, 2004
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