C B Radio Help
I know hardly any body uses a cb any more but I put one in for a trip with several other rigs that are traveling together and we can all chat back and forth. I bought a new radio and antenna mounted i...
Forum Discussion
SWR is the "standing wave ratio" you might want to look it up in Google.
Your CB is limited to 5 watts output power A high SWR could reflected as high as 4 Watts of that output power "back into" the CB so a poorly tuned antenna may very well damage your output transistor. So until you figure out the problem limit you transmit time to a few seconds at a time.
A high SWR while not good on the receiver side will only lead to somewhat poorer reception and not damage the CB.
To tune the antenna for best performance you change the physical length of the antenna on most automobile CB antennas there is a set screw near the base that lets you move the antenna up or down by a half inch or more. They are usually very close where they should be the SWR meter lets you fine tune the antenna.
Read the manual some units tell you how you can adjust for best performance using the signal meter on the unit.
I agree with others sounds as if the problem is in the coax line or a bad CB.
SWR tuning instructions
Your CB is limited to 5 watts output power A high SWR could reflected as high as 4 Watts of that output power "back into" the CB so a poorly tuned antenna may very well damage your output transistor. So until you figure out the problem limit you transmit time to a few seconds at a time.
A high SWR while not good on the receiver side will only lead to somewhat poorer reception and not damage the CB.
To tune the antenna for best performance you change the physical length of the antenna on most automobile CB antennas there is a set screw near the base that lets you move the antenna up or down by a half inch or more. They are usually very close where they should be the SWR meter lets you fine tune the antenna.
Read the manual some units tell you how you can adjust for best performance using the signal meter on the unit.
I agree with others sounds as if the problem is in the coax line or a bad CB.
SWR tuning instructions
