[Yaesu] Re: FT1000MP Key Clicks

[Tyler Stewart]

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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