[Yaesu] Re: FT1000MP Key Clicks

[Jim Parsons]

Rod, I don't have a Yaesu FT-1000MP. But I found your message interesting,
and maybe even applicable to other rigs.

Mostly, I enjoyed your efforts to help others. With all the trash we find
on many reflectors these days, its always a pleasure to find someone who is
willing to take the time to help others. 

73,

Jim, K5ROV


At 02:25 PM 12/14/97 +0000, Rod Elliott wrote:
>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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James (Jim), Parsons, K5ROV USAF, Ret.
k5rov@worldnet.att.net   QCWA, NWQRP, Fists, ARRL
EX: W1RLA, K5FBB, K4FEO, SV0WN (CRETE), SV0WN (RHODES),
DL4NC, DL4JP, KA2FC (JAPAN), KA2JP (JAPAN).
JOHN 3:16


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