[Hammarlund] SP 600 BANDSPREAD

Al Parker anchor at ec.rr.com
Sun Sep 23 17:48:45 EDT 2012


Hi Rich,
	Ed's right.  It's not really a bandspread dial, it's a logging dial, 
and is geared with the main dial.
	If you align the RF deck per the manual, you'll find that, unless 
someone's been really messing with the tuning cap, that the MC points 
will come in very close to the pointer on the main dial when you're on 
the mc freq.s.  But it's not a frequency meter, you're not going to read 
your freq. to the kc, just maybe sometimes to the 10 kc.  There is no 
specific freq. span between marks on the logging dial.  It's there so 
that once you have established the freq. of a fixed station (like 
foreign broadcast) you can write down the no. on the logging scale and 
go back to the stn another time.
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 9/23/2012 4:57 PM, djed1 at aol.com wrote:
> I don't see how it can either.  The bandspread aligns with the logging scale on the dial, not the frequency scales.
> Ed  W2EMN
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> -----Original Message-----
> From: Pat & Rich McKinney <pmcknney at bellsouth.net>
> To: hammarlund <hammarlund at mailman.qth.net>
> Sent: Sun, Sep 23, 2012 3:13 pm
> Subject: [Hammarlund] SP 600 BANDSPREAD
>
>
> DE WB4VFN RICH
>      I'm working on a SP600 jx-1 for a friend.  I have a question about the
> tuning.  Is it right for the bandspread dial to not land on zero at each even mc
> on all bands.  I don't see how it can.  If that is the case where is it supposed
> to zero on an even mc?  The old thing is not very sensitive at all and way off
> frequency.  So I guess an alignment is in order.  Any help appreciated to get
> this old boat anchor back in service.  73  Rich
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