[TowerTalk] Measured S-meter db/S-unit TS-450

[Tyler Stewart]

alsopb@vance.net wrote:
> 
> Guys,
> 
> If you want to know what your S-meter really reads build the attenuator
> in the ARRL handbook and inject a fixed signal.  I did this when my quad
> was showing much too much F/B and gain.
> 
> This table is for a TS-450 on 20m and slightly ambiguous due to the #$@
> leds instead of a real meter.
> 
> S-METER READING      DB ABOVE 0
> 0                       0
> 1                       4
> 2                       9
> 3                       13
> 4                       16
> 5                       19
> 6                       20
> 7                       22
> 8                       25
> 9                       29
> 9+10                    36
> 9+20                    46
> 9+30                    64
> 
> As you can see, it is anything but 6 db per S-unit.   Over some of the
> range is is 3db/S-unit.  I don't have a calibrated voltage source so I
> can't say how many mv S9 equals.
> 
> With this info, the quad appears much closer to theory.
> 
> Brian/K3KO
> Vance Net Inc
> End Of Message
> 
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Well, hopefully you've checked the calibration of your attenuator! 
However I would also offer that you should buy Yaesu then you wouldnt
have these troubles!  73, Tyler K3MM

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