There are many different SWR meters that are available, often aimed at the CB and amateur radio … To make this easy, make sure you have a partner to assist. 1. Using a CB radio, most people get an SWR meter in place to find the perfect tuning for their antenna. It also has a meter for recieving and sending built into my radio. Works in frequency range from 3-200MHz and has a 12vdc input for powering the meter's new LED backlight with rear on/off switch!! Road and weather conditions can and will over time change your SWR. Getting the SWR right is crucial not just for getting decent range but also because a high SWR reading can damage your CB. With a properly tuned antenna, you’ll make stable transmissions and hear or be heard by other CBers crystal-clearly. A 9v battery and some wire were also required to complete the build. This ensures that the impedances of the feedline and the antenna match perfectly, so that all available power is being radiated. There’s usually a marking “ANT” or “Antenna” on the SWR meter. In most cases, the connector inputs are the back and the labels in front. I use a CB SWR meter to check 2M antennas all the time. Connect the plug coming from the aerial to the socket marked ANT. 99 Adjusting the SWR is just matching the electrical length of your antenna to the desired frequency. It will be easy to find the spot where you input this coax cable end into the SWR meter. Equipment needed: SWR meter, short jumper coax 3 foot. For example, I have two or three old Radio Shack meters that will do that. How am I suppose to use this to calibrate my radio? Your SWR meter has two main controls: If all you want to to is check SWR on your 2M antenna, you don’t necessarily have to buy a dedicated VHF/UHF SWR meter. Turn off the CB radio then disconnect the antenna coax cable from the back; Connect the end of the antenna coax to the part labeled ‘antenna’ on the SWR meter. (12dvc plug wire included) *Power Measurement can only … Plug Your SWR Meter Into Your Set-Up. Remember, throughout this process it's important to keep the microphone the same distance from the meter … Tuning Your CB Radio Without an SWR Meter Find an area with limited interference or blockages.. HOW TO ADJUST THE SWR ON YOUR RADIO. However, if you can get enough energy (by running enough power) to set the SWR bridge when using a VHF / UHF SWR bridge on HF, it will be accurate. Let me introduce an SWR meter to you first. A higher antenna may also improve the CB radio range because ground effects are fewer. This device is attached between your antenna and radio. POWER / SWR METER for CB Radio 100 Watts – Dual Meters – Workman SWR3P. But, the reverse is not true. So, many people newbies don’t start with the SWR meter when they get gear. 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 on a few different channels. It works great and helps get the best of performance as you often have the risk of damaging the CB radio if you get things wrong. Brand New DELTA PSM1000W SWR/Power Meter that will handle up to 1000 watts!! My radio has a SWR meter built into the radio. RadioShack Power SWR Meter 21-534 CB High Frequency Ham Radio 2000 Watts 3-30MHz 4.5 out of 5 stars (4) 4 product ratings - RadioShack Power SWR Meter 21-534 CB High Frequency Ham Radio … The radio can transmit at maximum power when this ratio is below 2:1. Tuning the CB radio using an external SWR meter. Tune both radios or … Now, you should use the jumper lead and connect the SWR meter and your radio. … Adjust the squelch on your radio so that it blocks out static, but is not maxed out. To tune your antenna, you will need to use a SWR meter. The aim is to keep the SWR reading below 1.5, and this is easy and fast to achieve with an SWR meter. The owner's manual will include step-by-step directions for the operation of the built-in meter. The meter measures Forward power to the antenna system and then compares it to the reverse or reflected power from the antenna system. To add to Glenn's excellent advice, some "CB" SWR meters will handle the legal limit on HF with ease. Understanding how to use a SWR meter is relatively easy, but sometimes knowing how to interpret the results and their limitations enables far more to be gained from using a SWR meter. Understanding how to use a SWR meter is relatively easy, but sometimes knowing how to interpret the results and their limitations enables far more to be gained from using a VSWR meter. SWR Antenna Analyzer MFJ-259C. You can leave it in place when you have calibrated your CB radio, but we tend to avoid doing that. Choose the channel you want to use to tune your CB antenna. Turn on your CB and set it in the middle of the band (Channel 20, or 21 etc) Make sure that the channel is free to avoid interference to other users. This is the point when you need a microphone. This section of the site will show you how to use one correctly and tell you what to do to improve your readings if necessary. Uniden PC78LTX 40-Channel Trucker's CB Radio with Integrated SWR Meter, PA Function, Hi Cut, Mic/RF Gain, and Instant Channel 9,Silver 4.5 out of 5 stars 749 $99.99 $ 99 . The standing wave ratio (SWR) meter is a good alternative to using a power meter with forward and reverse power readings. For optimal performance, a CB radio antenna should be tuned using a SWR matcher or meter. Most meters that measure power also measure SWR. There are many different SWR meters that are available, often aimed at the CB and amateur radio markets. It’s an antenna analyzer as well and does a lot more than a typical SWR meter. I ve located a User Manual for you. 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. That’s where you are supposed to enter this end. Less risk of damaging your CB radio. Connect the antenna (normally connected to the back of the CB ) to the connector marked “Antenna” or “Ant” on your SWR Meter. Indeed, an SWR meter is an essential tool to protect quality deduction and possible destruction to the radio. Two PL259 patch leads were purchased from Amazon to connect the SWR meter to my radio and antenna tuner upon completion. When you try to use a bridge that was made for VHF or UHF on HF, the pickup element is usually too short to get enough energy to work the meter movement. A properly tuned CB Radio system is a happy CB Radio system. I have calibrated it and it works fine. Now, the second CB radio should be slightly away from your CB radio. (Antenna) The SWR meter is now connected in-line between the CB and the aerial. Learn to properly use an SWR meter and after your initial set up you should check your SWR once a month. Install an antenna specifically manufactured for use with CB radios. As the name suggests, the MFJ-259C isn’t just another SWR meter out there. Cherokee wrote:It turns out that is a bit of an odd meter to operate. But here, we plug it into the meter for tuning purposes. When using an SWR meter, you can tell whether your antenna is tuned properly by reading the value on the meter. In fact, the SWR meter ( Standing Wave Ratio) is a measuring device that measures the transmission signal from a CB or Ham radio. 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