[Boatanchors] HRO-50T, odd response

[Al Parker]

Hi Ian,
	Maybe the prior stages are overloaded?  I think I noticed something 
similar lately & found the sig. gen. was giving out way more than I wanted.
73,

Al, W8UT
www.boatanchors.org
www.hammarlund.info

"There is nothing -- absolutely nothing -- half so much
worth doing as simply messing about in boats"
Ratty, to Mole

On 6/3/2010 3:32 PM, Ian Wilson wrote:
> Restoring one from the ground up.
>
> With the BFO off, selectivity off (xtal filter out of circuit), DC coupled
> probe at detector o/p:
>    - CW input gives single peak of reasonable width
>    - 1kHz AM input gives two peaks with a pronounced null between them
>
> There are only 3 IFTs (counting the xtal filter unit) in the IF strip. I
> don't understand how
> anything can be narrow-band enough to do this, unless perhaps an IF stage is
> at the
> edge of regeneration. What's going on?
>
> 73, ian K3IMW
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