Specifications

High Precision S-Meter
A high precision S-Meter is installed with TRX-Manager. It is a separate application (
\TRX-Meter\ TRX-Meter.exe) running with TRX-Manager via OLE.
Features
The TRX-Meter program makes it possible to calibrate a digital S-Meter very precisely; to do
so will be require a RF generator. If you don't have a generator, it is still possible to calibrate
this S-Meter so that it reproduces the same indications as the transceiver.
This program also makes it possible to plot directive patterns of antennas; automatic remote
control of the rotor is supported (from V2.4.5 of TRX-Manager).
It should be noted that the calibration described here does not have any effect on the main
S-Meter of TRX-Manager which may be calibrated (basically) from the Preferences dialog
box, under Transceiver by simply moving a slider.
Running TRX-Meter
Please run TRX-Manager with OLE enabled (Setup) and run TRX-Meter.exe. The main
purpose of this application is to perform measurements, it is preferable to close all the
windows inside TRX-Manager but keeping it maximized : please note that TRX-Manager when
minimized does not communicate with your transceiver !
The TRX-Meter's window displays the signal strength in S Units, µV (*) and dBm. The max
value of the signal is displayed in dBm and can be reset by pressing >|<.
(*)50 µV = S9 below 30MHz, 5µV = S9 above 30MHz (See Table)
Calibrating
From TRX-Manager, the s-meter calibration slider (Preferences, Transceiver tab) must be
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