Youmei RS-50 Digital SWR/Watt Meter VHF/UHF 125-525MHz 120W for Two-Way Radio
Brand: Youmei
Specifications:
Frequency range: 125-525 Mhz
Center calibrated: 145Mhz(VHF) 435Mhz(UHF)
Power range:0-120W +/- 5%
Impedance: 50 ohm
Connector: M-J(So-239 (M))
Dimension: 70W x 78H x 30D mm
Net Weight: 220g

Measurement:
1. Apply output of transceiver to "TX" and antenna or load to "ANT".
2. "POWER" on for ready to use.
3. LCD display show simultaneously "Fwd/Ref Power and SWR".
4. For back-light, please switch "LIGHT" to "ON".
5. No function in 30 seconds, the backlight will automatically off.
6. Once PTT launched, the backlight will be back.

Battery installation:
1. Remove the black screw from the cover to open the rear panel.
2. Install 2 pcs "AAA" batteries.
3. Can be used with alkaline or Ni-Ca, Ni-MH rechargeable battery.
4. This unit has no built-in charging circuitry.
5. Be sure to correct polarity of battery.
6. Remove the battery if the unit won't be used in long period.

Packages includes:
1 x SWR/Watt Meter(no batteries)
Forward/Reflected/VSWR ration in one push button
LCD backlight display for easy reading
Convenient control layout for easy operation
Powered by two AAA batteries/rechargeable batteries or external USB port
Low insertion loss(0.3dB or lower) structure allows it to be connected permanently