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1. Since the meter movement is very sensitive, avoid excessive vibration or mechanical shock to the meter.
2. Watch the absolute maximum power could be applied to the meter by different models you bought.
3. The meter must never be reverse connected. Always observe the correct connections to transmitter and
antenna as indicated on the rear sockets.
4. Do not expose the meter to excessive temperatures, high humidity, or strong magnetic fields.
5. Contact your local dealer for service. Dealer information is in the back of user manual.
Caution
E. When switch to 'AVG', the meter reads average RF power.When switch to 'PEP', the meter reads Peak Envelope
Power for use withSSB and AM transmissions. In this mode, there will be a slow rise and decay time.
F. Push LED ON/OFF button when LED light is needed (in TX-101A, it also activate PEP active mode).
Forward /Reverse Pwr /SWR Measurement
Forward /Reverse Pwr /SWR Measurement
<INSTALLATION>
Made in Taiwan
A. Set the RANGE switch to the proper meter multiplier (X1, X10, X100) for the
expected power level of the intended measurement.
B. In TX-27, TX-101A, it corrosponds to 20/200/2K watts forward and 5/50/500
watts reflected full scale (Fwd : Ref = 4 : 1) In TX-102,
TX-502, it
corrosponds to 2/20/200 watts forward and 0.5/5/50 watts reflected full scale
(Fwd : Ref = 4 : 1)
C. (Push or release) the HF/VUHF band push knob (black, round button) to the
frequency of the itended measurement (corresponds to TX-502 only).
D. Set the radio transceiver to transmit mode and read the scale corresponding
to the RANGE selected
TX-402,
Front Panel
Front Panel
Rear Panel
Rear Panel
7. TX connector : Coax connector to transmitter 50 ohm RF output
8. ANT connector : Coax connector to 50 ohm antenna system
9 & 10. 2nd pair of TX/ANT connector : Available on TX-502 only
11. 13.8V DC connection (via power supply) for meter LED illumination
Note : DC power is only required to run the meter backlight or active
circuitry in TX-101A. Except TX-101A, this meter will function
without DC power in the AVG mode, even when switch off.
<DESCRIPTION>
1. Indicator Display : Indicates FWD/REV power in watts and VSWR ratio
2. HF/VUHF band switch (black, round push button) :
Select HF (out) or VUHF (depressed). Available on TX-502 only.
3. Range switch : Selects RF power range multiplier x 1, x 10, x 100
4. AVG/PEP switch : Select Average or SSB PEP
5. Indicator ON/OFF push button (elliptical) : LED backlight ON/OFF
6. Zero adjust screws of analog cross needle meter
<DESCRIPTION>
