"Dave Holford" wrote in message
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Thierry wrote:
Just out of curiosity - all these measurements used the same power
meter?

Yes of course.


I don't recall ever seeing 100W on SSB with my TS-430, TS-440 or TS-570
when speaking, a steady tone will do it of course.

Hi,

This is the first time that we note this problem too and the problem was
detected by chance... :-((
All users are exprimented OM some for decades and never observe this
effect... All told me that indeed their TX cannot emit its full power in SSB
but rather 50-60% in speaking normally. So we were very surprised than one
of us could reach the full power...

Our friend used a TS-840S and some olders and show us at the radioclub what
the matter with its TX.
He nearly reaches and sometimes exceed the 100W...in SSB, something we even
can't get using a yaesu 1000 MP of the last generation !

So as he recently bought the new TS570D he immediately noticed the
difference. Even using an electret microphone (using a battery and known to
boost emissions much more than a dynamic one) he cannot get the full power
of its older TX. Therefore we did some complementary measurements and have
searched for some information. Hence this post and some others

So at first sight I suspected an error in its reading procedure, etc. But
not at all...
Someone having read my TS570D review on Internet explained me that he knew
the problem and how to solve it.

I am waiting now more detail (how to increase the signal and what about QRM,
etc).

Thierry


Dave