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> CB antenna, Help me choose
pknowles
post Aug 23 2006, 02:11 PM
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I want to get a CB antenna for my trip to Nationals this year. Right now I have a hand held CB with a 6" antenna mounted on the CB. I'm going to keep the hand held because from what I have read there is little performance difference between a hand held and a professional radio, other then tunability. The performance is in the antenna. I'm thinking about getting a magnetic mounted antenna that I can put on the roof of the truck.

Questions:
1. What have you guys used and what to you recommend?
2. I know a longer antenna should perform better then a short one for CB freqancies, but how tall can I go? My truck roof is about 6 feet 2" high off the ground.

I'm willing to spend $50 if I can get something good. If it makes a big difference in performance I can go a little more.
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pknowles
post Aug 23 2006, 05:48 PM
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What kind of transmission and recieving range can I expect? Right now I have a tough time getting 1 mile.
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trackbird
post Aug 23 2006, 06:43 PM
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QUOTE (pknowles @ Aug 23 2006, 01:48 PM) *
What kind of transmission and recieving range can I expect? Right now I have a tough time getting 1 mile.


What is the output rating of the radio (wattage?)?

For reference, from a hillside (to a hillside, with nothing in between, line of sight), we can get about 7 miles out of 50 milliwatts (.05 watts) out of a handheld (under perfect conditions though) and with 5 watts I could get to the mountain beside Martinsburg WV from turn 9 at Summit Point (probably 15-20 miles). This was on a ham handheld using a portable antenna (radio mounted). CB is a lower frequency and tends to go farther (for the same wattage) than what I was using (I was on 1.25 meters/220 mhz and CB is 11 meters/29 mhz in wavelength) and the range should be better with a proper antenna and reasonable wattage (10 watts should do well for you with a proper antenna).
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pknowles
post Aug 23 2006, 07:38 PM
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QUOTE (trackbird @ Aug 23 2006, 02:43 PM) *
What is the output rating of the radio (wattage?)?


4 watts output. I'm assuming it is 4 watts as sent from the handheld and the actual wattage transmitted depends on the effencency of the antenna.

Also I've been reading that 4W is the FCC limit, but they state 4W almost if people using more then that. I have no experience in this type of stuff.

I did however figure out how to build a SWR meter.
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John_D.
post Aug 23 2006, 07:43 PM
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QUOTE (pknowles @ Aug 23 2006, 02:38 PM) *
I did however figure out how to build a SWR meter.


Cool. (IMG:http://www.frrax.com/rrforum/style_emoticons/default/smile.gif)

I think I used to have one, way back in the day... No idea where it ended up though.
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Posts in this topic
pknowles   CB antenna   Aug 23 2006, 02:11 PM
John_D.   Both of my handhelds came with short magnetic moun...   Aug 23 2006, 02:25 PM
pknowles   What should I expect from different antennas? Wil...   Aug 23 2006, 04:32 PM
BigEnos   I have a through-glass (think 80's car phone) ...   Aug 23 2006, 04:58 PM
trackbird   Longer isn't always better. Each antenna has t...   Aug 23 2006, 05:19 PM
pknowles   What kind of transmission and recieving range can ...   Aug 23 2006, 05:48 PM
trackbird   QUOTE (pknowles @ Aug 23 2006, 01:48 PM) ...   Aug 23 2006, 06:43 PM
pknowles   QUOTE (trackbird @ Aug 23 2006, 02:43 PM)...   Aug 23 2006, 07:38 PM
John_D.   QUOTE (pknowles @ Aug 23 2006, 02:38 PM) ...   Aug 23 2006, 07:43 PM
trackbird   4 Watts on a proper antenna, on 29 mhz should get ...   Aug 23 2006, 07:58 PM

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