Search found 86 matches
- Wed Oct 02, 2024 11:23 pm
- Forum: Questions & Advice
- Topic: How to attach a wire antenna to a fiberglass pole?
- Replies: 10
- Views: 5656
Re: How to attach a wire antenna to a fiberglass pole?
You don't realize how much you need a 3d printer until you have one!
- Fri Sep 27, 2024 3:37 pm
- Forum: General Discussion
- Topic: EFRW and VNA
- Replies: 2
- Views: 338
Re: EFRW and VNA
I'll give it a go if we get some clear weather this weekend!
- Fri Sep 27, 2024 3:35 pm
- Forum: Questions & Advice
- Topic: How to attach a wire antenna to a fiberglass pole?
- Replies: 10
- Views: 5656
Re: How to attach a wire antenna to a fiberglass pole?
Looks like a great 3d printer project, thanks!
73,
Mike, KL7MJ
73,
Mike, KL7MJ
- Tue Sep 24, 2024 5:18 pm
- Forum: General Discussion
- Topic: EFRW: some notes
- Replies: 6
- Views: 5043
Re: EFRW: some notes
I also have a script I wrote myself, that I can select which bands I care about - e.g. if I'm building an EFRW for a 10-20m rig, I don't care about interactions on 30m. Having said that, I think we make EFRWs seem too complicated with the table of good and bad lengths. For portable use, I think a co...
- Sun Sep 22, 2024 1:09 pm
- Forum: Questions & Advice
- Topic: Need help with TR-35
- Replies: 3
- Views: 2909
Re: Need help with TR-35
I think I've got it figured out! The issue wasn't the Talencell battery pack, but rather the buck converter that I added to the power cord. When I replaced it with a plain cable the noise stopped on 40 and 30. Also, replacing the cable improved the sidetone in my QMX (it was very raspy, which I misi...
- Wed Sep 18, 2024 10:27 pm
- Forum: Questions & Advice
- Topic: bit of advice please...
- Replies: 7
- Views: 2774
Re: bit of advice please...
I'd maybe have a disconnect in the EFHW wire at an EFRW-friendly length - 35.5 or 29 feet.Andrew (grayhat) wrote: ↑Wed Sep 18, 2024 5:53 pm you could cut an EFHW, add some wire with a spade connector to make it an EFRW and carry two transformers, a 9:1 and a 49:1
- Mon Sep 16, 2024 3:52 pm
- Forum: Questions & Advice
- Topic: bit of advice please...
- Replies: 7
- Views: 2774
Re: bit of advice please...
I would want to carry two different types of antennas, if possible. One, a wire antenna, either an EFHW (without a tuner) or an EFRW (with a tuner). The other a DS-1, PAC-12, magloop, or some other not-too-tall antenna - if for some reason you can't use the wire antenna.
73,
Mike, KL7MJ
73,
Mike, KL7MJ
- Wed Aug 28, 2024 12:54 pm
- Forum: Questions & Advice
- Topic: New K6ARK antenna?
- Replies: 4
- Views: 3144
Re: New K6ARK antenna?
Adam talks about this antenna design at the 13:46 mark in this video:
https://www.youtube.com/watch?v=zlv6JYFxN9g
Other than the rybakov, I haven't seen a 4:1 for an EFRW design before.
That website looks great - lots of good information. Thanks.
73,
Mike, KL7MJ
https://www.youtube.com/watch?v=zlv6JYFxN9g
Other than the rybakov, I haven't seen a 4:1 for an EFRW design before.
That website looks great - lots of good information. Thanks.
73,
Mike, KL7MJ
- Mon Aug 26, 2024 2:31 pm
- Forum: Questions & Advice
- Topic: New K6ARK antenna?
- Replies: 4
- Views: 3144
Re: New K6ARK antenna?
I built an antenna this weekend with a 4:1 unun connected to a common-mode choke, with a 20 foot radiator and a 7.5 foot radial. I couldn't get it to tune up on 40, but could on 30, 20 and 17. I tried calling CQ using a TR-35 and checking for results on RBN. I was picked up by one station on 20m - n...
- Wed Aug 21, 2024 8:03 pm
- Forum: Field Kits and Reports
- Topic: Fara-J fabric J-pole for 2m/70cm
- Replies: 1
- Views: 2194
Fara-J fabric J-pole for 2m/70cm
I saw a video for this antenna the other day https://vfcomms.com/shop/antenna/fara-j-antenna/ I've been building and using J-poles for over 30 years, and my favorite travel antenna for 2m/70cm was a J-pole made out of 300 Ohm twinlead. This is now my favorite travel antenna for my HT. The price list...