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Post by 321 treeclimber on Dec 23, 2018 1:16:34 GMT -5
Can anyone reccomend a tuner/matcher for 11meter?
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Post by ytradio on Dec 23, 2018 9:24:07 GMT -5
MFJ manual tuners are ok, choose one in the power level you expect that you may be running in the future. For a little more money, Palstar is a very good tuner, and is what I run. They also have the advantage of being made right here in the USA in good old Ohio. I have called there and talked to the very people who build them. Whatever you do get, I would not bother with an auto tuner. Just not needed, especially if you are staying on one band. 73 Whitey
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Post by SIX-SHOOTER on Dec 23, 2018 11:54:28 GMT -5
Can anyone reccomend a tuner/matcher for 11meter? I don't see why anyone would ever need an antenna tuner for just 11 meters? If the SWR is that bad on the antenna then something is wrong if it is just an 11 meter antenna.Besides that an antenna tuner does NOT actually change the SWR it just fools the gear inline into seeing a good match.I would address the real issue with the antenna & use the antenna tuner money for something worth while like maybe a resonant antenna.A resonant antenna will work far better than any non resonant antenna using a tuner. SIX-SHOOTER
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Sandbagger
Administrator/The Boss
Posts: 6,245
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Post by Sandbagger on Dec 23, 2018 15:28:55 GMT -5
Can anyone reccomend a tuner/matcher for 11meter? I don't see why anyone would ever need an antenna tuner for just 11 meters? If the SWR is that bad on the antenna then something is wrong if it is just an 11 meter antenna.Besides that an antenna tuner does NOT actually change the SWR it just fools the gear inline into seeing a good match.I would address the real issue with the antenna & use the antenna tuner money for something worth while like maybe a resonant antenna.A resonant antenna will work far better than any non resonant antenna using a tuner. SIX-SHOOTER I tend to agree that for strictly 11 meters, using a tuner to cover up an antenna system problem is a bandaid solution at best. Especially if you're only trying to make an SWR under 2:1 totally flat. The loss of the tuner in line will negate any possible improvement from taking the match completely flat. Any decent CB antenna is capable of achieving a 1.2:1 SWR with at least a 1.5 Mhz 2:1 SWR bandwidth. That said, he might want to use his CB antenna on 10 or 15 meters, and you will probably need a tuner to correct that much of a frequency change. My beam has an absolutely horrible SWR on 10 meters, and the tuner in my Icom is needed to keep the radio happy. So you never know what someone's need is.
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Post by SIX-SHOOTER on Dec 23, 2018 17:38:07 GMT -5
I don't see why anyone would ever need an antenna tuner for just 11 meters? If the SWR is that bad on the antenna then something is wrong if it is just an 11 meter antenna.Besides that an antenna tuner does NOT actually change the SWR it just fools the gear inline into seeing a good match.I would address the real issue with the antenna & use the antenna tuner money for something worth while like maybe a resonant antenna.A resonant antenna will work far better than any non resonant antenna using a tuner. SIX-SHOOTER I tend to agree that for strictly 11 meters, using a tuner to cover up an antenna system problem is a bandaid solution at best. Especially if you're only trying to make an SWR under 2:1 totally flat. The loss of the tuner in line will negate any possible improvement from taking the match completely flat. Any decent CB antenna is capable of achieving a 1.2:1 SWR with at least a 1.5 Mhz 2:1 SWR bandwidth. That said, he might want to use his CB antenna on 10 or 15 meters, and you will probably need a tuner to correct that much of a frequency change. My beam has an absolutely horrible SWR on 10 meters, and the tuner in my Icom is needed to keep the radio happy. So you never know what someone's need is. I have an external MFJ 929 on my ICOM 746 because the internal tuner no longer functions & I can use the Antron 99 that I plug into it on 10,12, 15,& 17 meters with pretty good results.It will tune it on 20 meters as well but the signal reports are just so so.I also have an LDG AT-1000 that I use with my ICOM 7600 & ICOM PW-1 when using my G5RV on 40,75/80 meters since it is far from resonate on any of those bands so the radio or PW-1 will not operate very well without it.My Mosley TA-53M is resonate on 10,12,15,17,& 20 meters so I don't need a tuner with it or on my M2 6M5X on 6 meters. SIX-SHOOTER
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Post by 321 treeclimber on Dec 23, 2018 19:03:46 GMT -5
Great info ! I feel the same way. Your all right,i dont have enough of an swr problem to really warrant the cost. I am 1.1 one my antron ,1.2 or so,on my sirio 1/2 wave and under 2. With my maco 5/8 so no real prob....but it sure was cool to spark that much insight so thank you all. I just won't mention the 3.5 swr when i use my unmentionable 500v thanks again ! Treeclimber
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Post by ytradio on Dec 24, 2018 13:45:51 GMT -5
Nothing like antenna tuners to spark different opinions in radio operators. But, even on 11 meters one can be very useful in some situations. A fellow I know of, lives in a valley with a hill on his property, and his antenna on top of the hill. A 550 ft run of coax. After changing to 450 ohm window line, you know the change in performance. Tuner saved the day.
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Sandbagger
Administrator/The Boss
Posts: 6,245
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Post by Sandbagger on Dec 24, 2018 14:39:31 GMT -5
Great info ! I feel the same way. Your all right,i dont have enough of an swr problem to really warrant the cost. I am 1.1 one my antron ,1.2 or so,on my sirio 1/2 wave and under 2. With my maco 5/8 so no real prob....but it sure was cool to spark that much insight so thank you all. I just won't mention the 3.5 swr when i use my unmentionable 500v thanks again ! Treeclimber If you have a good SWR running barefoot, and it jumps up when you kick on the amplifier, chances are it's not a mismatch of the antenna system. Most likely the amp is producing out-of-band harmonics that reflect back and look like a bad SWR. A low pass filter on the output of the amp will fix that up in most cases....
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Post by 321 treeclimber on Dec 24, 2018 15:02:19 GMT -5
And you aRe right! Happy to report major change with my newly acquired copper electronics low pass filter! Freshly installed brought the swr down to 1.6 under 325 watt load! Amazed
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Post by gb498 on Jan 1, 2021 1:32:04 GMT -5
I have a Super Penetrator that was originally for Ham bands Tuned as close as i could to center of 11 meter and used a tuner to clean it up even more upgraded to a 300 watt tuner later on to handle other issues been using this set up for many years with great results. using a MFJ949E versa tuner. I am now re furbing my Penetrator to get many more years of service out of it. it is 40+ years old by the way!
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