[R-390] Sync Detect Results

[Tom M.]

Well, I had little to do today as will soon be apparent.

I went ahead and made an IF cable for the 390A, and made a coupler out of a
piece of foil about the size of the Sony radio, and connected same to the
cable.  I sat the Sony on the foil to pick up the IF signal.

I then connected the Sony's line-out to my regular amp.

Results were excellent.  

The Sony locked no problem while sitting on the 455 coupling foil.  In fact the
signal was so strong it still locked three feet away, so the 390A is putting
out gobs of 455 IF.  The coupling contraption needn't be very large.

The sound through the amp is good from the line out, although I'm sure the Sony
could use some audio optimization.

You can realy tell the difference between the fading on the headphones and the
reduction of same through the amp.

Lock range is about 3-4 kcs.  Allows you to tune around QRM, and select the
best sideband.  The filters in the 390A are naturally still effective.  

Radio New Zealand on 17675 will be the test subject tonight.  

73 Tom N5OFF

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