| Author |
Message |
    
mikefromms
| | Posted on Saturday, August 30, 2003 - 7:11 am: | 
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I've got a Maco Match Box. I went up to about 29.500 and adjusted my swr completely away. Since 29.500 is a good ways above the CB band can I really trust the match box to protect my radio? I mean, there's no possible danger if you only had say, a 2.0 swr and used a match box to bring it down, but I'm concerned about the over 3 swr on 29 mhz. Can I trust this match box? Hope it's not a dumb question. Is it really that much like a tuner?
mikefromms |
Kc0gxz
| | Posted on Saturday, August 30, 2003 - 3:40 pm: |
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mikefromms
A tuner does nothing more than bring the matching impedance down to a respectable level so you can use the transmitter without damage to the finals.
If you have a 3:1 SWR, using the tuner will bring it down to a 1.5:1 or less between the radio and tuner. However, you will still have a 3:1 SWR between the tuner and the antenna and around a 25% power loss.
I'm curious to know why you would be transmitting on 29.5 anyways. You're just asking for trouble there.
Jeff, kc0gxz. |
bruce
| | Posted on Saturday, August 30, 2003 - 5:24 pm: |
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29.5 ? 29.5-29.6 there are repeater inputs .... |
mikefromms
| | Posted on Saturday, August 30, 2003 - 7:48 pm: |
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I hold an extra class ham license. I might want to talk into the 10 meter repeaters. I've heard them in Texas, Virgin Islands...etc. Pretty interesting.
Thank Kc0gxz for the information. Let's see 40 watts divided by 25% power loss 25/40= 30 watts. Hey, that's pretty good!
mikefromms |
RCI 2990
| | Posted on Thursday, September 04, 2003 - 1:15 am: |
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Those matchers are a joke... Waste of $$$ IMHO.... |
mikefromms
| | Posted on Thursday, September 04, 2003 - 7:12 am: |
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Well, if they save the radio and allow use on extended frequencies then they are useful. Maco is a name we can trust.
mikefromms |
Scrapiron63
| | Posted on Thursday, September 04, 2003 - 11:37 am: |
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Mike, as i'm sure you know, the match box is the same as a tuner, and where would the hams be without tuners. Well, they would be up the creek without a paddle, unless they had one heck of an antenna farm. They're so important the better rigs have them built in. No doubt they protect your transmitter, but do they get more power to your antenna, I don't know. I've checked them on receive and they will bring it up if your SWR is very high. I've also got signal checks using HF rigs with tuners, if the SWR is high at all, using the tuner will make noticable differences in the signal on the other end. I also know that some HF rigs will cut back on output if they're looking at much SWR, but whether your getting more to the antenna or not, your still protecting your transmitter. scrapiron |
Bullet
| | Posted on Thursday, September 04, 2003 - 11:30 pm: |
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mikefromms,
dont get offended by my question please.. i mean no disrespect at all.
but i cant help but wonder about the questions you ask sometimes about things a extra class ham operator should know in his sleep.
dont get me wrong we all have room to learn more and i for one tend to forget things if i dont do a refresher once in a while. but an extra class
really...or are you fooling around. |
mikefromms
| | Posted on Friday, September 05, 2003 - 6:58 am: |
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An Extra Class means nothing now days. I memorized the answers. I'm more on the level of a novice at best. If the requirement for a General class were what they were 30 years ago I doubt I would ever had made that license. I'm not stupid. I have a degree in Business with a 3.90, but I'd have to be very interested in radio to have to actually put one together to get a license. If I set my mind to it I can do some tech stuff. I was out of the Hobby for almost 10 years. I also like reassurance of what I think I know. I'm enjoying being back in it. No offense taken. I do like to keep conversation going.
mikefromms |
mikefromms
| | Posted on Wednesday, September 10, 2003 - 12:24 pm: |
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I have found the Maco tuner to work great with my set up. Maco is a name we can trust.
mikefromms |
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