How do i use a SWR meter to tune a cb antenna? - cb swr
I have an old Radio Shack CB radio, which seems to work fairly well, but I'm trying to adjust the antenna, I have a SWR meter, but you forget how to use it on someone help me find Manual model 422 Realistic TRC. Thank you all .....
Cb Swr How Do I Use A SWR Meter To Tune A Cb Antenna?
2 comments:
This counter does not read the output power in watts, is only a list of the CA. Set the meter, key and CB define the line at 100%. Set the camera to reflect British Columbia and the button again. You can read SWR.
The SWR meter is the same cable connectors contnector its antenna to CB radio. We must, therefore, in a short piece of wire connecting the antenna to the connection between the CB and the antenna. It is as if a piece as short as possible, as well as the wire used on the SWR.
For a carrier frequency, the length of the antenna should be to ensure the level partners, including cable, the maximum transmission only. If the antenna is too short or too long, not all energy is radiated and the other part is on the radio again. Different, in which the measurement is plotted frozen as radio waves (hence the term standing wave ratio). The percentage of loss of power that can use the radio, but not well distributed. SWR has an impact on transmission distances and heat stress on your radio. Ideally, a CA should be 1.0:1 (or "one to one) is. The practice most commonly CA 1.1:1 or 1.2:1. Also 1.3:1 is not serious.
Start your CB on channel 19, is in the middle of the frequency band and an antenna that is intentionalMind a little too long. When the microphone, you get a reading on your meter, maybe 1.5 - 1.7:1. Cut an inch, perhaps outside the base of the antenna, the microphone out, and get a new reading. It is trial and error. Keep small amount s to reach the antenna and the ability to 1.1:1 cut.
You never get a perfect 1.0:1 in real life. Many other factors also affect SWR. In fact, if you 1.2:1, which is very satisfactory. Cut too much, and now has a TOS. If more than the original length to about half of the antenna.
You want the lowest SWR in the middle of its range of CB (Chapter 19), because the cables are bigger any direction to the other channels. SWR meters are most helpful and practical for amateur radio operators who are allowed to transmit more power over great distances. For the limited power and range of CB radios, SWR meter on an assignment for those who wanted to deliver successfully for radio operators. For CBS, they're really not so practical.
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