K160RX alignment question

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K160RX alignment question

Hank Kryger
My construction of the K2 is progressing, SSB and noise limiter are
installed and I installed the 160 M module this afternoon.  Just after
sunset the 160 meter band was full of activity.
I have a concern about the 160 meter alignment.
Manual page 9. step 2.  Set VFO for 1800.10 kHz
        Select CAL PLL, hold EDIT a second time, takes about 2 minutes to see
END.

I did the above procedure but did not get END.  All that happened when
I held EDIT was the disappearance of the "annunciators" which were at A
B RIT and XIT.  When I let go of the EDIT after about 2 1/2 minutes I
had a short  indication on the LCD with:  07093.52 and right after that
the message:  Info 232.

Looking in the K2 manual "info 232"   states CAL PLL on wrong band.
INFO 232 is most likely displayed when using CAL PLL without first
selecting 40 meters.

Does all of the above mean that I first have to select 40 meters before
doing 160 meters.  The instruction manual for the K160RX does not
mention 40 meters CAL PLL????  Also what is the meaning of  07093.52 ,
which briefly flashed on the LCD,  It really was brief it took me 3
tries to get the number correctly.

Any help would be appreciated.  Wishing everyone a Happy New Years.  
Hank WA9QJH

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Re: K160RX alignment question

Mark J. Schreiner
Hi Hank,

Look at the Errata for your module.  I always incorporate the errata
into the manual before I start building, just to make sure I don't miss
anything.  If you didn't get the errata you can download it from
Elecraft's website.

In any case, it states that you don't need to do the first three steps
of alignment as per page 9 if you have a K2 with firmware older than
V2.00.   Proceed with the rest of the calibrations  and you should be
all set.  I am not sure if your CAL PLL on 40m is now screwed up so you
may want to check that, but I would think that if it gave an error it
didn't overwrite anything so you should still be okay.  Worst case, you
may have to go back to recal the PLL at 40m.

Hurry up and get on 160m to join us on the Stew Perry DX Challenge!  One
of the best QRP 160m contests of the season!  See:

http://jzap.com/k7rat/stew.rules.txt

73,

Mark, NK8Q


Hank Kryger wrote:

> My construction of the K2 is progressing, SSB and noise limiter are
> installed and I installed the 160 M module this afternoon.  Just after
> sunset the 160 meter band was full of activity.
> I have a concern about the 160 meter alignment.
> Manual page 9. step 2.  Set VFO for 1800.10 kHz
>     Select CAL PLL, hold EDIT a second time, takes about 2 minutes to
> see END.
>
> I did the above procedure but did not get END.  All that happened when
> I held EDIT was the disappearance of the "annunciators" which were at
> A B RIT and XIT.  When I let go of the EDIT after about 2 1/2 minutes
> I had a short  indication on the LCD with:  07093.52 and right after
> that the message:  Info 232.
>
> Looking in the K2 manual "info 232"   states CAL PLL on wrong band.
> INFO 232 is most likely displayed when using CAL PLL without first
> selecting 40 meters.
>
> Does all of the above mean that I first have to select 40 meters
> before doing 160 meters.  The instruction manual for the K160RX does
> not mention 40 meters CAL PLL????  Also what is the meaning of  
> 07093.52 , which briefly flashed on the LCD,  It really was brief it
> took me 3 tries to get the number correctly.
>
> Any help would be appreciated.  Wishing everyone a Happy New Years.  
> Hank WA9QJH
>
> _______________________________________________
> Elecraft mailing list
> Post to: [hidden email]
> You must be a subscriber to post to the list.
> Subscriber Info (Addr. Change, sub, unsub etc.):
> http://mailman.qth.net/mailman/listinfo/elecraft   
> Help: http://mailman.qth.net/subscribers.htm
> Elecraft web page: http://www.elecraft.com
>

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RE: K160RX alignment question

Don Wilhelm-3
In reply to this post by Hank Kryger
Hank,

Read the K160RX errata sheet - it tells you not to do the CAL PLL on 160
meters.

The display you received is quite normal when attempting CAL PLL on any band
except 40 meters, so no harm done.  The frequency that is briefly displayed
the the frequency of the VCO output (read from TP1).  It appears only
briefly while the microprocessor is deciding whether the frequency is
correct or not (it is incorrect for CAL PLL) and then the Info 232 message
is properly displayed to indicate that you tried CAL PLL on something other
than 40 meters.

There is no need to do an additional CAL PLL, the data for 160 meters has
already been stored in the EEPROM.  If you choose to do CAL PLL agian, set
the 4 MHz reference oscillator just before running CAL PLL.  See the
information on my website http://w3fpr.qrpradio.com article on K2 Dial
Calibration for the complete procedure and alternatives.

73,
Don W3FPR

> -----Original Message-----
>
> My construction of the K2 is progressing, SSB and noise limiter are
> installed and I installed the 160 M module this afternoon.  Just after
> sunset the 160 meter band was full of activity.
> I have a concern about the 160 meter alignment.
> Manual page 9. step 2.  Set VFO for 1800.10 kHz
> Select CAL PLL, hold EDIT a second time, takes about 2
> minutes to see
> END.
>
> I did the above procedure but did not get END.  All that happened when
> I held EDIT was the disappearance of the "annunciators" which were at A
> B RIT and XIT.  When I let go of the EDIT after about 2 1/2 minutes I
> had a short  indication on the LCD with:  07093.52 and right after that
> the message:  Info 232.
>
> Looking in the K2 manual "info 232"   states CAL PLL on wrong band.
> INFO 232 is most likely displayed when using CAL PLL without first
> selecting 40 meters.
>
>
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