By FCC regulations, CB radios are limited to 4 watts of transmission power. Can high SWR damage a radio? With the radio on the lowest channel (1 on CB) and the SWR meters switch in the Forward (FWD) position, depress the transmit switch (key up) located on the microphone. A - It's fairly easy, you will need either an SWR meter function built into your CB radio (eg.. a Cobra 29, Uniden 880 or Galaxy DX-959 / DX-929), or you can use an external SWR meter, hooked between your radio & antenna (see our OnLine Catalog). Set the CB radio on channel 20. The most common cause of a high SWR is an antenna shorted to ground. Press the key of the microphone to pass into transmission and keep it in this position. While holding the unit in this transmit mode, adjust the meter needle to the set position using the Set or Adjust knob on the meter. In the typical ham station setup, a transmitter is connected to a feed line, which is then connected to the antenna. SWR CAL S NB/ ANL ANL OFF CB PA BRT DIM CH9 NOR RX/TX M MAX MIN MAX S Operation Calibrate For SWR (Standing Wave Ratio) 10 Note Antenna Indicator LED will illuminate when TX if SWR is high. Keeping the mic button depressed, switch the SWR toggle back to SWR and write down the SWR reading on the meter. Short. There are two places a short can occur in a CB antenna system, in the coax and in the antenna stud. Follow the directions that come with the equipment. So, start! Use your SWR readings to make adjustments to your antenna accordingly. High SWR can reflect enough power back into the radio to … Repeat the steps above on Channel 1. SWR in this range is usually caused by a poor mounting location and/or a poor choice of equipment for your specific vehicle. SWR … To use SWR meter you need to know how meter range works. #6 - Test for a Proper Antenna Ground To function properly, your antenna mount needs to be grounded to your vehicle's metallic chassis. How to use SWR meter. If you own a CB radio, it is very likely that you are having issues with increasing its range and power. The use of CB radios is limited to areas where the FCC operates. SWR Range Explanations. How to use SWR Meter. voltage standing wave ratio, by the technical folks. If your SWR is 2.9 or lower, please see this article on interpreting SWR between 1.0-2.9 for more guidance on what it means and how to address any problems. Adjust the SWR CAL dial until meter swings right and sits directly under "CAL" on the meter. Bring the needle of the S-meter on the pointer , ∞ or SET with the gauging button [CAL]. The best way to easily understand SWR is by example. The official FCC statement is that the average CB radio range is 1 to 5 miles (1.6 to 8 km), but the actual average range may be greater — around 3 to 6 miles (4.83 to 9.66 km), depending on several factors. SWR 2.5 - 2.9: Performance in this range will be noticeably decreased, and you might even damage your radio if you transmit frequently and for extended periods. We advise you not to operate your radio in this range. Set the switch of the S.W.R.-meter on position FWD (gauging). 2 Switch to the CAL position. Don't worry because it is a very common issue and we are going to show you how to increase watts in a CB radio for better sound quality. Most of the CB radio SWR meters are affordable like the AUSWR Meter But other frequencies checker meters can be expensive. Reconnect this end of the cable, which is going to the antenna, to the SWR meter in the connector marked “antenna” or “ANT.” Next, use the jumper lead to connect your radio and the SWR meter through the connection marked “transmitter” or “XMIT.” Now you are ready to measure the SWR … Put the switch in position REF (reading of the SWR … Okay, but what does it really mean? 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