G5RV - Elmers Forum at eHam.net

$\'\'$

$\'\'$

$\'\'$

eHam.net Forum : Elmers : G5RV

Forum Help

1-7 of 7 messages

Page 1 of 1

G5RV	Reply
by K7LZK on October 3, 2001	Mail this to a friend!
Okay, I live in a single family home with a zero lot line. I do not have the space for a vertical and am considering either a G5RV or a G5RV/2. I have 56' of space between my chimney and a bracket I will be hanging at the end of my garage. I was originally considering a G5RV/2 to hang in between this space. My question is what would happen if I hang a full 102' G5RV from my chimney out to two different horizontal points? In other words, I would have a horizontal or parallel 'V' instead of the inverted or sloped 'V'. The approximate angle would be about 15 degrees. Any ideas or suggestions? Thanks!

RE: G5RV	Reply
by KG4BOD on October 3, 2001	Mail this to a friend!
Unless you really want 75-80 meters, the half size will do well. Each leg is 26' long, the ladder line is 17'. The ladder line portion needs to be vertical, the dipole portion can be arranged in an inverted V pattern and this works well. The antenna does well on 40 and up. I'd recommend using an auto tuner designed to be outside mounted at the antenna, not inside the shack. Remote mounting will eliminate rf getting munched up in the feeline, a common problem with coax fed dipoles. It does no good to get "a good match" in the shack, with coax munching up your power. The 1/2 size G5RV will be hard to detect by nieghbors. It also does very well on 6 meters. Enjoy

RE: G5RV	Reply
by AC5E on October 3, 2001	Mail this to a friend!
Well, I realize that a lot of people swear by the G5RV. In my experience it's a fair 40 Meter antenna, an excellent 20 Meter antenna, and there are better choices for 80 Meters and 17 and up. So my 'RV is hanging on a shed wall out at the farm. But that wasn't what you want. You want a success story, or at least a suggestion! I hung a trap dipole (82 feet overall length) between 30 foot push up poles - on leg hung across this lot and the other leg parallel to my fence line - making a horizontal V with a 90 degree included angle. My total height was around 22 feet at the supports. I worked more than 50 European stations plus several VK's and ZL's on 75 SSB with that setup. 73 Pete Allen AC5E

RE: G5RV	Reply
by WB2WIK on October 3, 2001	Mail this to a friend!
I guess I'm puzzled about the commend "...don't have room for a vertical." You then go on to say you have a chimney. Normally, a very good HF vertical can be installed on a chimney using straps, and possibly a bit of additional reinforcement. But with such limited space I'd turn to the chimney (or roof) and a vertical before experimenting with wires...a good vertical installation can be a truly "most bang for the buck" experience. Is there something preventing you from doing this? 73, Steve WB2WIK/6

RE: G5RV	Reply
by KF4ZGZ on October 3, 2001	Mail this to a friend!
I've used a G5RV with no complaints. I have not used the short version. Actually , I had a 130 ft. zepp( A G5RV feed with ladderline) Both should work well for the exception of the longer giving 80m.You can feed a 88 ft. zepp with ladderline and get 80-10m with no problems. Go flattop if possible for best performance. 73 de Matt, kf4zgz ps- Here is my next antenna experiment...10-160m on a trap dipole. If you want 10-80m in 57.5ft. ( a little less actually!) e-mail me for some info.

RE: G5RV	Reply
by NB6Z on October 3, 2001	Mail this to a friend!
You did not post an email address... Take a look at this wire design as it will fit perfectly in your space. http://home.teleport.com/~nb6z/nb6zepJr.htm

RE: G5RV	Reply
by WB6BYU on October 4, 2001	Mail this to a friend!
To answer your question about the "Vee" antenna - if the wires are really only 15 degrees that would mean the ends would be about 15' apart (rough mental calculation ). Such an antenna might give you some good gain and directivity at UHF, but the radiation from the two wires will mostly cancel each other at HF. The angle between the two wires should be greater than 90 degrees. What bands do you want to operate? Why do you say you don't have room for a vertical? You could mount one on your chimney and lay some radials on the roof.

Page 1 of 1

Next Topic: Choosing an HF vertical antenna
Previous Topic: New FCC Licensing Call Sign Formats

Email Subscription
You are not subscribed to this topic.

Check our help page for help using Forum, or send questions, comments, or suggestions to the Forum Manager.

$\'\'$