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#1
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I made a balun for this antenna according to the manufactures
instructions and I still have high swr. HELP. I do get good signal reports though. The ladder line is only verticle for almost 12ft and then drapes off the roof. Best way it could be installed right now. Using a kenwood ts440s with auto tuner. No luck on ten meter yet!!! |
#3
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![]() "Dick" wrote in message ... On Fri, 22 Aug 2008 11:04:46 -0700 (PDT), wrote: I made a balun for this antenna according to the manufactures instructions and I still have high swr. HELP. I do get good signal reports though. The ladder line is only verticle for almost 12ft and then drapes off the roof. Best way it could be installed right now. Using a kenwood ts440s with auto tuner. No luck on ten meter yet!!! I have found that only a couple of bands can be tuned with the built-in tuner. For the rest you will need an external tuner that can handle SWR's greater than 3:1. With the current sunspot cycle, you would be lucky to make a ten-meter contact (other than locals) with a 6-element beam, let alone a G5RV. Dick - W6CCD I don't think much of the G5RV, but that is a personal opinion without ever having one up. I do use an OCF antenna with all its problems. Mainly for 80 and 40 meters. Ten meters has been opening up some and I have made a few contacts on it. I am not much of a 10 meter operator. I do have a triband beam up and it is much beter than the OCF for the bands it is cut for , but I have heard many 10 meter stations and beacons over the last month. I have even made a few 6 meter contacts out of the local area. |
#4
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On Aug 23, 10:57 am, "Ralph Mowery"
wrote: "Dick" wrote in message ... On Fri, 22 Aug 2008 11:04:46 -0700 (PDT), wrote: I made a balun for this antenna according to the manufactures instructions and I still have high swr. HELP. I do get good signal reports though. The ladder line is only verticle for almost 12ft and then drapes off the roof. Best way it could be installed right now. Using a kenwood ts440s with auto tuner. No luck on ten meter yet!!! I have found that only a couple of bands can be tuned with the built-in tuner. For the rest you will need an external tuner that can handle SWR's greater than 3:1. With the current sunspot cycle, you would be lucky to make a ten-meter contact (other than locals) with a 6-element beam, let alone a G5RV. Dick - W6CCD I don't think much of the G5RV, but that is a personal opinion without ever having one up. I do use an OCF antenna with all its problems. Mainly for 80 and 40 meters. Ten meters has been opening up some and I have made a few contacts on it. I am not much of a 10 meter operator. I do have a triband beam up and it is much beter than the OCF for the bands it is cut for , but I have heard many 10 meter stations and beacons over the last month. I have even made a few 6 meter contacts out of the local area. I did make a contact from N Ohio to Idaho with reptty good results running around 35W on 40 meter the other night. Thanks for the input though!!! |
#6
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On Aug 25, 10:20 pm, Mike Coslo wrote:
wrote : I did make a contact from N Ohio to Idaho with reptty good results running around 35W on 40 meter the other night. Thanks for the input though!!! Did you get your problem solved? A few questions here. Where is the balun located, and what type is it? Internal tuners tend to correct up to only 3:1 or so. There is a good chance that you will still need an outboard tuner. Something like a MFJ 949 would probably do the. If you do use that, you can probably take the balun of the radio end, (if that is where it is at) and run the ladder line directly to the tuner. - 73 de Mike N3LI - The balun is at the feedpoint. It is constructed as per mauf specs. 4" pvc with ten turns of the coax around it, secured with zip ties. |
#7
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On Mon, 25 Aug 2008 20:51:28 -0700 (PDT), wrote:
On Aug 25, 10:20 pm, Mike Coslo wrote: wrote : I did make a contact from N Ohio to Idaho with reptty good results running around 35W on 40 meter the other night. Thanks for the input though!!! Did you get your problem solved? A few questions here. Where is the balun located, and what type is it? Internal tuners tend to correct up to only 3:1 or so. There is a good chance that you will still need an outboard tuner. Something like a MFJ 949 would probably do the. If you do use that, you can probably take the balun of the radio end, (if that is where it is at) and run the ladder line directly to the tuner. - 73 de Mike N3LI - The balun is at the feedpoint. It is constructed as per mauf specs. 4" pvc with ten turns of the coax around it, secured with zip ties. Here is a good article regarding feeding the G5RV. You will note in it that Louis Varney (G5RV) in his later writings, did not recommend the use of a balun. I have used the G5RV for many years without a balun with fairly good success. Here is the article - http://www.vk1od.net/G5RV/index.htm Dick - W6CCD ** Posted from http://www.teranews.com ** |
#8
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On Mon, 25 Aug 2008 20:51:28 -0700 (PDT), wrote:
On Aug 25, 10:20 pm, Mike Coslo wrote: wrote : I did make a contact from N Ohio to Idaho with reptty good results running around 35W on 40 meter the other night. Thanks for the input though!!! Did you get your problem solved? A few questions here. Where is the balun located, and what type is it? Internal tuners tend to correct up to only 3:1 or so. There is a good chance that you will still need an outboard tuner. Something like a MFJ 949 would probably do the. If you do use that, you can probably take the balun of the radio end, (if that is where it is at) and run the ladder line directly to the tuner. - 73 de Mike N3LI - The balun is at the feedpoint. It is constructed as per mauf specs. 4" pvc with ten turns of the coax around it, secured with zip ties. You might look at g5rv's later article on his antenna: http://www.qsl.net/aa3px/g5rv.htm bob k5qwg |
#9
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On Aug 26, 9:53 am, Dick wrote:
On Mon, 25 Aug 2008 20:51:28 -0700 (PDT), wrote: On Aug 25, 10:20 pm, Mike Coslo wrote: wrote : I did make a contact from N Ohio to Idaho with reptty good results running around 35W on 40 meter the other night. Thanks for the input though!!! Did you get your problem solved? A few questions here. Where is the balun located, and what type is it? Internal tuners tend to correct up to only 3:1 or so. There is a good chance that you will still need an outboard tuner. Something like a MFJ 949 would probably do the. If you do use that, you can probably take the balun of the radio end, (if that is where it is at) and run the ladder line directly to the tuner. - 73 de Mike N3LI - The balun is at the feedpoint. It is constructed as per mauf specs. 4" pvc with ten turns of the coax around it, secured with zip ties. Here is a good article regarding feeding the G5RV. You will note in it that Louis Varney (G5RV) in his later writings, did not recommend the use of a balun. I have used the G5RV for many years without a balun with fairly good success. Here is the article -http://www.vk1od.net/G5RV/index.htm Dick - W6CCD ** Posted fromhttp://www.teranews.com** Correct about "NO Balun" on Lou Varney's design but the writer is using a coaxial choke, nothing more. A G5RV antenna has varing success because of installation conditions & was only designed as a 20 meter antenna. If you're lucky, it will work on various bands but the feedline should come away as close to 90 degrees from the antenna feedpoint & AWAY FROM ALL METAL OBJECTS like gutters, fences, etc! I decided against a G5RV because of room & height. I made up a 66' dipole, fed at center with 450 window/ladder line. That line comes up to & under the eave of the house to a homebrew 4:1 balun which I found on the WWW. I feed that with RG-8 to a NYE tuner for all bands including 80 meters. The tuner is quite resetable & easily adjusted, I am very pleased with it & its only 20' high:-) GL....... Rich |
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