[1000mp] Odd tuner behavior

[J. C. Mc Laughlin]

Dear John:
    I am assuming that your question is directed at me.
    I do not know for sure.  It may well be that tuner settings are stored
for a small band of frequencies.  This hypothesis is supported by listening
to the tuner as I tune the receiver (with red LED lit) slowly up the 80
meter CW band.  Using the same set of frequencies when asserting the Tune
does seem to work.
    All of that said, I make regular use of the Mk V's tuner only near a few
frequencies - the very bottom of 40 meters where my larger LPDA just starts
to have a noticeable SWR and parts of 80 meters.  However, when there is a
rotator failure or the like, I have successfully used a LPDA on other than
designed frequencies with the help of the tuner.  Thus the 3x5 card not only
lists the spot frequency to be used for tuning, but also comments on which
antenna was connected when last tuned.

    Perhaps someone else knows for sure the scheme used inside of the radio.

    73    Mac   N8TT
J.  Mc Laughlin;   Michigan  U.S.A.
Home:  JCM at Power-Net.Net
----- Original Message -----
From: "John Becker" <johnb3030 at comcast.net>
To: <1000mp at mailman.qth.net>; <jcm at power-net.net>
Sent: Sunday, February 27, 2005 3:09 PM
Subject: Re: [1000mp] Odd tuner behavior


> > What I do to avoid the problem of exhausting the tuner memory
>  > locations is to write down on a 3x5 card the exact frequencies that
>  > were used when asking the tuner to tune.  By always returning to the
>  > same frequencies when needing to ask the tuner to tune, the old
>  > settings are replaced rather than a new memory location being used.
>  >
> Is it necessary to be on *exactly* the same frequency to re-use a memory
> location? If so, it would be a good idea to have these frequencies
> stored in memories for ease of use.
>
> 73,
>
> John, K9MM