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Summary of Contents for Nissei RS-50M
- Page 2 SWR –Standing Wave Ratio is the ratio of FWD to REF power. HOW DOES IT WORK? The RS-50M will detect when the microphone button on the VHF radio also known as PTT (push to talk) has been pressed, and measures the Forward Power, Reflected Power and Standing Wave...
- Page 3 Note: The highest SRW values occur when the antenna is disconnected or short circuited. Operating a VHF radio with the antenna disconnected or short circuited can damage the radio. Testing the radio with the RS-50M without the antenna attached can also damage the radio.
- Page 4 1. Connect the transceiver to the “TX” connector on the RS- 50M meter using a 1 meter length of 50-ohm cable (sold separately) 2. Connect the antenna or load to the "ANT" connector. 3. Turn on the RS-50M power and optionally the LCD back- light switch.
- Page 5 Power (FWD), Reflected Power (REF) and Standing Wave Ratio (SWR) will be displayed for 5 seconds. While the PTT button is pressed the RS-50M is constantly calculating and averaging the results for the most accurate reading. Note: If the meter is not used for 30 seconds, the back-light will automatically turn off.
- Page 6 WHY IT IS IMPORTANT In a marine emergency, when you press the VHF radio’s Digital Selective Calling (DSC) button, you want the radio to transmit your unique MMSI number identifying your boat and GPS co-ordinates with the strongest and clearest signal to facilitate a marine rescue. However, your MAYDAY call may not be received if…...
- Page 7 Troubleshooting: Symptom Solution FWD Power less than 25 a) Make sure that you are testing on Watts Channel 72, a 25 Watt Channel. Some channels are limited to 1 Watt. b) Check battery voltage on Radio. Most VHF radios will only transmit full power (25 Watts) with 13.8 volts DC power.
- Page 8 Connectors: SO-239 Taiwan Nissei Sokki Co. No.2, Lane 21, Cheng Kung Rd. Banqiao District, New Taipei City, Taiwan. TEL: 886-2-29626195 FAX: 886-2-29577492 Homepage：http://www.meterexpert.com e-mail：info@meterexpert.com Taiwan Nissei Sokki Co. Manual written by CTEX Innovations for © 2017 Taiwan Nissei Sokki Co.
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