[Milsurplus] Re: differences between BC-191F & N

[W7QHO at aol.com]

In a message dated 9/28/07 7:50:15 AM, cosmoline at aa4rm.ba-watch.org writes:


> Now comes a current puzzle & that's whether '375 cousin used on MCW rather
> than (i)CW.  Now know '375 liasson only used in sqdn. lead bomber.
> '375  too chirpy to ever work with a '348 on xtal filter so think MCW.
> May  have answer tonite.
> 
> Note I visited W2CQH yesterday where a '375 runs every morning on 3725.
> Uses BC-696 as VFO since too much FM from MO
> 
> 
Marty, et-al

Provided that the keying relay contact sequencing is correctly set, BC-375 
chirp is primarily a function of power supply regulation.   When running off a 
dynamotor the chirp is minimal on 75 and 160M and I don't believe receiving on 
a BC-348 with the xtal filter on would be/have been a problem.   Of course, we 
don't know what kind of receivers might have been used back at the receiving 
base end.

On 375 FMing, this can be virtually eliminated by over-neutralizing slightly 
as I have described several times on this forum.

Dennis D. W7QHO
Glendale, CA



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