Re: Topband: G5RV Conversion For 160M Use
On Sun,6/7/2015 10:53 AM, Keith Jillings (G3OIT) wrote: If it's a "double size", won't it tune on 160 as-is? I have a standard G5RV that works well on all bands 80 - 10. "Tuning" and 'working well" are two very different things. Jim's antenna at 50-60 ft is too low to be very effective on 160M. When I first moved here, I had a 160 dipole at about 125 ft, and it was "low." My first tee vertical, roughly 60 ft with about 40 radials, beat it 90% of the time, and often by a lot. 73, Jim K9YC _ Topband Reflector Archives - http://www.contesting.com/_topband
Re: Topband: G5RV Conversion For 160M Use
Hi Jim, 60 ft is very low for a horizontal antenna on 160, but that could load quite well as a top-loaded vertical. Simply tie both sides of the ladderline together and load it against as many radials as you can put down. 73, Jim K9YC On Sun,6/7/2015 9:54 AM, Jim Murray via Topband wrote: I have a 204' (double) G5RV I'm contemplating "strapping" for use on 160M. It presently has 65' of 450 ohm ladder line and 70' of RG8X with a 20' choke in the coax.It's configured as a flat top, approx. 60' on each end and 50' at the middle, fed into a big old Dentron Super Super tuner in the shack. On line I find several methods such as the link below but would appreciate any suggestions to get it right considering it's unusual size.Thanks,Jim - k2hnhttp://www.ke9ns.com/images/g5rv.png | | | | | | | | | | | | | | | View on www.ke9ns.com | Preview by Yahoo | | | | | _ Topband Reflector Archives - http://www.contesting.com/_topband _ Topband Reflector Archives - http://www.contesting.com/_topband
Topband: G5RV Conversion Keith
As it sits now I can tune on 160 but performance not as good as my Inv. L and beverage which I had prior to moving to this new QTH. My other option is to put up another Inv. L. etc. and leave the G5 as is for other bands. Just not enough low band antennas and to little time while trying to get settled into a new QTH. Just thought it would be interesting to see what that big wire would do strapped for 160.Thanks,Jim/k2hn _ Topband Reflector Archives - http://www.contesting.com/_topband
Re: Topband: G5RV Conversion For 160M Use
On 07/06/2015 17:54, Jim Murray via Topband wrote: > I have a 204' (double) G5RV I'm contemplating "strapping" for use on 160M. It presently has 65' of 450 ohm ladder line and 70' of RG8X with a 20' choke in the coax.It's configured as a flat top, approx. 60' on each end and 50' at the middle, fed into a big old Dentron Super Super tuner in the shack. On line I find several methods such as the link below but would appreciate any suggestions to get it right considering it's unusual size.Thanks,Jim - k2hnhttp://www.ke9ns.com/images/g5rv.png If it's a "double size", won't it tune on 160 as-is? I have a standard G5RV that works well on all bands 80 - 10. There's one difference with mine: the ladder line comes all the way into the shack, and it's matched there with a parallel tuner. It works a lot better that way than it did with the coax attached. I strap the feeders and tune against ground on 160. It's not as good as I'd like, but it's easy for an old man 73 Keith G3OIT _ Topband Reflector Archives - http://www.contesting.com/_topband
Topband: G5RV Conversion
My apologies for the messed up previous post. For some reason when I send a link it automatically attaches a picture.73Jim/k2hn _ Topband Reflector Archives - http://www.contesting.com/_topband
Topband: G5RV Conversion For 160M Use
I have a 204' (double) G5RV I'm contemplating "strapping" for use on 160M. It presently has 65' of 450 ohm ladder line and 70' of RG8X with a 20' choke in the coax.It's configured as a flat top, approx. 60' on each end and 50' at the middle, fed into a big old Dentron Super Super tuner in the shack. On line I find several methods such as the link below but would appreciate any suggestions to get it right considering it's unusual size.Thanks,Jim - k2hnhttp://www.ke9ns.com/images/g5rv.png | | | | | | | | | | | | | | | View on www.ke9ns.com | Preview by Yahoo | | | | | _ Topband Reflector Archives - http://www.contesting.com/_topband
Re: Topband: G5RV
What mix ferrite does the AES balun use? The original W2DU choke balun design uses 73 material ferrite, and that does not always work the best on 160 and 80 meters in that application. I'm not knocking W2DU'S time-tested design; but it's over 40 years old, and much better ferrites (#31 in particular) have come out since then. Jim K9YC is absolutely correct about feeding the dipole on 160 as a T-antenna against a good RF ground, unless you don't care about DX. But what bands do you want to use it on? And on what band did you experience the RF problem? 73, Mike www.w0btu.com On Wed, Mar 21, 2012 at 10:22 PM, wrote: > We ordered a W2DU-HF choke balun from AES that is supposed to solve the > problem 1.8-30 Mhz > ___ UR RST IS ... ... ..9 QSB QSB - hw? BK
Topband: G5RV
Thanks for all the replies about the G5RV RF into the shack problem. We ordered a W2DU-HF choke balun from AES that is supposed to solve the problem 1.8-30 Mhz with a GOOD ground for the transceiver and power supply. Will post here how it works out. Floyd says thank you he is 89 and NOT on internet. ___ UR RST IS ... ... ..9 QSB QSB - hw? BK
