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#1
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Help with Antenna
i just picked up a Midland radio 75-822 portable cb. it has the noaa
stations too. i am looking for a hi gain ruber ducky bnc antenna. can anyone suggest one? |
#2
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Help with Antenna
On Sat, 29 Jul 2006 02:13:52 GMT, "Kryptoknight"
wrote: i just picked up a Midland radio 75-822 portable cb. it has the noaa stations too. i am looking for a hi gain ruber ducky bnc antenna. can anyone suggest one? A high gain rubber ducky is an oxymoron. |
#3
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Help with Antenna
Kryptoknight wrote:
i just picked up a Midland radio 75-822 portable cb. it has the noaa stations too. i am looking for a hi gain ruber ducky bnc antenna. can anyone suggest one? High gain generally relates to large size. "Rubber Ducky" antennas are low gain compromises. There is no such animal as "High Gain Rubber Ducky" [pun intended] |
#4
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Help with Antenna
i know i know. the factory one is a dual band 10" antenna (cb and noaa). i'm
looking for the ~27MHz cb band antenna that is approx 12-18" long. this would have better gain than what i have now, but obviously not like a 1/4 or 1/2 wave antenna. any suggestions on through-glass mini "loaded" cb antenna. "Dave" wrote in message . .. Kryptoknight wrote: i just picked up a Midland radio 75-822 portable cb. it has the noaa stations too. i am looking for a hi gain ruber ducky bnc antenna. can anyone suggest one? High gain generally relates to large size. "Rubber Ducky" antennas are low gain compromises. There is no such animal as "High Gain Rubber Ducky" [pun intended] |
#5
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Help with Antenna
i know the through-glass antenna suck balls, but i did not want to install a
huge whip. i have a 2006 tacoma with tonneau cover. i would do a hard mount on my roof as long as the antenna was one of those thin stainless types. any suggestions (model / part #'s)? thanks "Kryptoknight" wrote in message ... i know i know. the factory one is a dual band 10" antenna (cb and noaa). i'm looking for the ~27MHz cb band antenna that is approx 12-18" long. this would have better gain than what i have now, but obviously not like a 1/4 or 1/2 wave antenna. any suggestions on through-glass mini "loaded" cb antenna. "Dave" wrote in message . .. Kryptoknight wrote: i just picked up a Midland radio 75-822 portable cb. it has the noaa stations too. i am looking for a hi gain ruber ducky bnc antenna. can anyone suggest one? High gain generally relates to large size. "Rubber Ducky" antennas are low gain compromises. There is no such animal as "High Gain Rubber Ducky" [pun intended] |
#6
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Help with Antenna
On Sat, 29 Jul 2006 12:24:33 GMT, "Kryptoknight"
wrote: i know i know. the factory one is a dual band 10" antenna (cb and noaa). i'm looking for the ~27MHz cb band antenna that is approx 12-18" long. this would have better gain than what i have now, but obviously not like a 1/4 or 1/2 wave antenna. any suggestions on through-glass mini "loaded" cb antenna. Hi OM, The difference between an infinitesimal antenna and a quarterwave antenna is only 5%. However, to get the small antenna to resonate brings far more opportunity for loss. 12-18" long is not likely to bring you any advantage but carefree dreams unless you can strangle the loss. 73's Richard Clark, KB7QHC |
#7
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Help with Antenna
Richard Clark wrote:
The difference between an infinitesimal antenna and a quarterwave antenna is only 5%. However, to get the small antenna to resonate brings far more opportunity for loss. 12-18" long is not likely to bring you any advantage but carefree dreams unless you can strangle the loss. To clarify, that 5% is only for a lossless antenna. When the antenna becomes very short, you also take a beating in conductor loss, since the currents get enormous, so the antenna itself becomes inefficient. And of course if the antenna depends on current through the ground, you take a beating there for the same reason. So add conductor and possibly ground loss to the inevitable loss in the matching network which must also deal with high current and/or high voltage. Roy Lewallen, W7EL |
#8
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Help with Antenna
so there is no better ducky antenna than the one that came with this cb ??
any suggestions on a roof mounted thin stainless whip?? "Roy Lewallen" wrote in message ... Richard Clark wrote: The difference between an infinitesimal antenna and a quarterwave antenna is only 5%. However, to get the small antenna to resonate brings far more opportunity for loss. 12-18" long is not likely to bring you any advantage but carefree dreams unless you can strangle the loss. To clarify, that 5% is only for a lossless antenna. When the antenna becomes very short, you also take a beating in conductor loss, since the currents get enormous, so the antenna itself becomes inefficient. And of course if the antenna depends on current through the ground, you take a beating there for the same reason. So add conductor and possibly ground loss to the inevitable loss in the matching network which must also deal with high current and/or high voltage. Roy Lewallen, W7EL |
#9
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Help with Antenna
Just use a regular CB antenna. It will work fine. I had one of these radios
years ago and used a little center loaded CB antenna that was just about 2 feet long I got from Kmart. Not a great antenna for CB but I could pick up 3 or four NOAA stations in the area. Even a full size CB antenna will work well with it. A discone antenna can be modified to work on both the NOAA frequencies and CB equally well by extending 3 of the rods that make the skirt of the antenna to 1/4 wl at CB freq and adding another1/4 wl section that extends vertically from the disk. "Kryptoknight" wrote in message ... i just picked up a Midland radio 75-822 portable cb. it has the noaa stations too. i am looking for a hi gain ruber ducky bnc antenna. can anyone suggest one? |
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