[Yaesu] FT-1000(X) S-meter calibration

[Tyler Stewart]

The MP is full scale at S9 + 60 DB, which Yaesu sets for +100dbu.  That would
make S9 a +40dbu, which tranlates to 50 microvolts on a 50 ohm sig. gen.


-----Original Message-----
From: Morel Grunberg <morel.grunberg@telrad.co.il>
To: Morel Grunberg <morel.grunberg@telrad.co.il>; 'Yaesu reflector'
<yaesu@contesting.com>; 'FT-1000MP list' <1000mp-list@jehosophat.com>; 'Tyler
Stewart' <k3mm@erols.com>
Date: Monday, November 10, 1997 05:45
Subject: RE: [Yaesu] FT-1000(X) S-meter calibration


>Ty,
>
>Many thanks for reply and info. It's simply not clear for me:
>if you need 100dBu for S-9+40 ( by the way this is the MP
>full scale or S-9 + 60 ?) so, for S-9 you need 60dBu ( 30uV )?
>
>73 de Morel, 4X1AD
>
>> ----------
>> From: Tyler Stewart[SMTP:k3mm@erols.com]
>> Sent: ‏יום שני 10 נובמבר 1997‏ 01:55
>> To: Morel Grunberg?;? 'Yaesu reflector'?;? 'FT-1000MP list'
>> Subject: Re: [Yaesu] FT-1000(X) S-meter calibration
>>
>>
>> I dont think that is correct.  I'm pretty sure it's 50 uV...at least
>> on the
>> 1000MP.
>> That's what I derived from my service manual.
>>
>> They say it's 100dbu for full scale which means S9 is 40 dbu which
>> converts to
>> 50uV.  Someone correct me if I'm wrong...
>>
>> 73, Ty K3MM
>> -----Original Message-----
>> From: Morel Grunberg <morel.grunberg@telrad.co.il>
>> To: 'Yaesu reflector' <yaesu@contesting.com>; 'FT-1000MP list'
>> <1000mp-list@jehosophat.com>
>> Date: Sunday, November 09, 1997 06:26
>> Subject: [Yaesu] FT-1000(X) S-meter calibration
>>
>>
>> >Does some one know what's the reason Yaesu
>> >choose to calibrate their HF rigs S-meters with
>> >250uV/50 Ohms for a S-9 reading ( FT-990,
>> >FT-1000D, FT-1000MP and FT-920 ) ?
>> >
>> >Morel, 4X1AD
>> >
>> >--
>> >FAQ on WWW:               http://www.qsl.net/k7on/yaesu.html
>> >Submissions:              yaesu@contesting.com
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>> >Search:                   http://www.contesting.com/km9p/search.htm
>> >
>>
>


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