[Yaesu] FT1000MP CW and Noise Blanker operation.

[WD8ARZ]

Hello Tyler, just a short note about the CW choppyness and the noise
blanker. You can find a series of email messages about noise blankers and
why that is so, and is normal in the following two email reflector
archives:

For the FT1000MP archive, go to the main site at:
http://jehosophat.com/1000mp/
and then browse the past messages thru the archive icon that is on the
front page.

For the Contesting site that covers Yaesu gear go to:
http://www.contesting.com/_yaesu/

Thanks for taking the time to post your experiences with the FT1000MP

73 from Bill - WD8ARZ
E-Mail Reply to:
wd8arz@null.net

----------
> From: Tyler Stewart <k3mm@erols.com>
> To: yaesu@contesting.com; Rod Elliott <elliottr@mail.hurontel.on.ca>
> Subject: Re: [Yaesu] Re: FT1000MP Key Clicks
> Date: Monday, December 15, 1997 12:01 AM
> 
> I think the ALC is a little slow on the first dit, but I only get about a
10
> watt
> increased output spike on the first dit of a transmission.
> 
> Note that the monitor audio is very fragile.  If you have the noise
blanker
> on, the monitor CW will sound choppy.  Also, if you have a lot of signal
> coming in on the RX ANT port for some reason, it seems you can get some
> leakage throught that will make it sound rather hollow...like an echo
chamber.
> 
> 73, Ty K3MM
> 
> -----Original Message-----
> From: Rod Elliott <elliottr@mail.hurontel.on.ca>
> To: yaesu@contesting.com <yaesu@contesting.com>
> Date: Sunday, December 14, 1997 14:27
> Subject: [Yaesu] Re: FT1000MP Key Clicks
> 
> 
> >At 08:34 AM 12/14/97 -0500, WD8ARZ wrote:
> >>Hello All, the topic of key clicks is a good one. Most rigs can produce
the
> >>problem at one time or the other. The causes are several and is
generally
> >>easy to correct. [snip]
> >
> >Hello all...
> >
> >Bill's comments are excellent. I'd like to add one thing specific to the
> >FT-1000MP that may be a "quick 'n easy" way to prevent clicks.
> >
> >I've set my FT-1000MP's meter to peak hold for 500ms (menu 3-7). This
> >affects both the S-meter reading on receive and the power out reading on
> >transmit.
> >
> >So far, that has nothing to do with key clicks. However, having the
ability
> >to observe peak power output has revealed an interesting thing: As I
> >advance the PWR control up the 100 watts output level, the peak reading
on
> >key closure is the same as the key-down steady state power reading.
> >However, if I try to squeeze out that last few watts by advancing PWR
> >beyond the 100 watt level, the peak reading on key closure rises to
almost
> >150 watts, even though the steady state reading won't go past 105 watts.
> >
> >My inference: It looks like when you drive the MP past 100 watts, the
> >keying waveform gets very sharp, or hard, on key closure. I haven't
> >confirmed it, but there's a good chance that this generates key clicks.
> >
> >So... I always limit my power control to no more than 100 watts key
down.
> >I've had no complaints about key clicks.
> >
> >... for what it's worth, and easy to try. Many thanks to Bill WD8ARZ for
> >his insightful comments.
> >
> >73
> >
> >Rod Elliott  VE3IRF
> >
> >
> >--
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> >
> 
> 
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