[Boatanchors] Alignment Question: High Side of Osc. vs Low Side

[Al Klase]

Mark,

Listen for the oscillator on a well calibrated receiver.  It will need a 
BFO.  The modern solid-state all band receivers are great for this.  
Easily settable memories are a plus, as you'll often need to move 
between two frequencies. (Trim high - pad low.)  I like my Sony 2010 for 
this.  Most freq counters put too much of a load on the oscillator, and 
pull it off freq.

Al

On 6/3/2013 4:21 PM, Mark Johnson wrote:
> Team,
>
> An issue that has always been unclear to me when doing an alignment of a receiver. Some receivers have you adjust the local oscillator frequency to the high side of the incoming signal and some to the low side. Some receivers have you do either depending on the band your aligning. Example I'm checking out a Hallicrafters SX-110 and the oscillator frequency is adjusted to the high side of 3 of the 4 bands and the low side on the 4th band.
>
> I understand the theory but how do I actually know or test for this during the alignment process? That is, if instructed to adjust the oscillator to the high side vs the low side, what do I test for or do to insure I'm on the high side?
>
> Thanks very much.
>
> Mark VE3LU/VE3DJU
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-- 
Al Klase - N3FRQ
Jersey City, NJ
http://www.skywaves.ar88.net/