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

[alsopb@vance.net]

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 


--
FAQ on WWW:               http://www.contesting.com/towertalkfaq.html
Submissions:              towertalk@contesting.com
Administrative requests:  towertalk-REQUEST@contesting.com
Problems:                 owner-towertalk@contesting.com
Search:                   http://www.contesting.com/km9p/search