>I have a permanent S7 birdie on 24.960 on my MP. Does anyone else ??
>
>73 Frank VO1HP
---------------
Hi Frank,
I acquired a 1000mp a few weeks ago and noticed the same birdie on 12
meters. Mine luckily, as the rig warms up drifts over towards the band
edge. I asked Yaesu about it and they said "Yup it's there" without
offering a fix. I have noticed that you can use the auto notch to get rid
of it.
I posted the same question to the 1000mp reflector and received this answer
****************************
Richard Lubash wrote:
> ... seems to put out a fairly pronounced birdie at
> 24.984.50Mhz.
Hi Richard! Welcome to the clock birdie. Mine was on 25.055 and
drifted as it got warmer up to 25.070. This is, of course, not a
problem on the fundamental, but the second harmonic (50.110 thru 50.140)
was a TREMENDOUS problem when on was trying to use any 6 meter equipment
with the thing turned on. I sent it back to Yaesu and they found a
resonator in their inventory that makes it come out around 25.014, cold,
which is much less of a problem on 6 meters.
The signal comes from a microprocessor clock @ nominally 25 MHz. The
real cure would be to use a real quartz AT-cut crystal at 24.995 in this
circuit, but Yaesu cheaped out and used a surface-mount ceramic
resonator instead.
73 es good luck,
Mike - W8MM - EM79sd
***************************
Other than the bird I think it's a great rig.
73
Richard / N1VXW
------------------------------------------------
Richard Lubash
rlubash@poco.mv.com
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