[1000mp] 1000MP chirp on CW

[Joe Giacobello]

Antero, your problem sounds similar to the chirp problem that arises in 
MPs without built-in power supplies.  Shortening the DC cable may help 
somewhat, but soldering the leads between the DC cable and  the fuse 
holders and putting a 0.01uF disc capacitor across the terminals of the 
DC supply finally solved the problem for me.

73, Joe

Antero Laikko wrote:

>Hi,
>
>Having a chirp problem with FT1000MP.
>When transmitting with a short hold delay and allowing the
>TX to trip, the beginning of next dash or dit represents a clear chirp.
>However, increasing hold delay time, and having the rig "on the air" allows
>chirp-free signal.
>Since mains voltage is very stable, I first thought there is a voltage drop
>in the DC cables between the rig and power supply, and shortened these to
>minimum. No improvement.
>I suspect one of the oscillators might have a "local energy bank" capacitor
>which doesn't recharge fast enough or cannot hold its charge level. But
>which ????
>
>Has anyone experience a similar problem / how was it fixed ?
>
>Thanks in advance for help.
>
>73,  Antero, OH2BEM
>
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