[Hammarlund] Old Hammalunds

Jim Wilhite w5jo at brightok.net
Wed Apr 13 21:43:33 EDT 2011


Bob, I have an HP 8601 but it is difficult to tune so I use a 
Function-audio-generator with a sweep function made by OR-X.  I believe 
it was made in Israel but am not sure.  I don't even have a manual but 
managed to get it to sweep the way I needed.

It has the sawtooth wave out to sync the scope and weighs much less than 
the HP.  You may see something like the OR-X at a larger hamfest or 
something by other manufacturers and they probably will be much cheaper 
because it doesn't have the HP logo attached.  This one is completely 
digital and very stable where as the HP is mechanical.  It tunes from 
literally 0 Cy to 10 Meg and has variable sweep out to any width you 
wish to set.  Much better to operate for me.

Jim/W5JO


----- Original Message ----- 

> So is the HP 8601 is the preferred sweeper for communications receiver
> alignment?   I think the TV/FM service grade sweep generators lack the
> stability and narrow sweep range needed for our purposes, but would
> appreciate other recommendations to look for.
>
> 73, Bob W9RAN



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