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Posted: 7/23/2016 6:34:26 PM EDT
[#1]
I think a simple 1/4W groundplane (DIY with a connector) would work just fine.
Slightly more involved would be a coax based antenna: 2M only version dual band version Both have the benefit of being able to be coiled up like coax. If you have a fiberglass pole like a tent stay, just rubber band/zip tie/duct tape to it and you're done. |
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Posted: 7/23/2016 6:38:54 PM EDT
[#2]
I like the ebay roll-up slim jim antennas made from 300 ohm TV twinlead.
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Posted: 7/23/2016 7:02:15 PM EDT
[#3]
I have a roll up "slim jim" antenna that works decently well. The Ed Fong's are also pretty good.
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Posted: 7/23/2016 8:57:37 PM EDT
[#4]
I love my 2m/70cm N9TAX slim Jim. I put it up temporarily when I moved in my house, and it's been up ever since as my main VHF/UHF antenna. Works great, and buddipole makes an ACME/NPT thread adapter that will let you attach it to the top of a painters pole.
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Posted: 7/23/2016 9:39:22 PM EDT
[#5]
Ed Fong DBJ-1 J pole.
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Posted: 7/23/2016 9:43:52 PM EDT
[#6]
Don't own one, but an Arrow Antenna J-Pole should work well.
http://www.arrowantennas.com/osj/j-pole.html |
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Posted: 7/24/2016 12:48:38 AM EDT
[#7]
Quote HistoryQuoted:
Don't own one, but an Arrow Antenna J-Pole should work well. http://www.arrowantennas.com/osj/j-pole.html I've got one of those on my house. Its built like a tank and works great, plus will take any wattage you can toss at it. Not the most portable though. I own one of Ed's j poles and it gets used at the camper and for portable work. Once you put it in 3/4 thin wall pvc its only 5' long. I usually just clamp it to a painters pole with a couple spring clamps. Downside to this one is 75 watts max. |
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Posted: 7/24/2016 2:17:38 AM EDT
[#8]
How much performance do you need, how much cost, how much size are you willing to deal with?
J poles are a waste and often do not perform well. Simple 1/4 wave ground plane or vertical dipole will generally beat them on performance in a smaller and less expensive package. If you're willing to spend $50 and deal with something a little larger, pick up a Tram 1480 and get some real performance. |
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Posted: 7/24/2016 7:47:05 AM EDT
[#9]
For my needs, i'llgive the N9TAX slim jim a try....
Thanks guys |
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Posted: 7/24/2016 7:48:45 AM EDT
[#10]
Ditto the recomendations of the nice simple quarter wave vertical.
If you simply must have a J-Pole, both the Ed Fong and N9TAX versions WITH the included feedline choke work pretty well, and they are true multi-band designs that have also taken steps to mitigate common mode feedline currents. My measurements of the N9TAX unit show common mode almost as low as a ground plane. For more info and appropriate bashing of lesser J-Poles, see the QRZ link and Tom's link ----> Appropriate J-Pole bashing on the zed End Fed and J-Pole analysis at W8JI common J-Pole uhg...... 
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Posted: 7/24/2016 10:53:55 AM EDT
[#11]
I like my ed fong. You could make it cheaper if you had the supplies but at $30 it's hard to beat.
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Posted: 7/24/2016 11:18:45 AM EDT
[#12]
I have 2 N9TAX and could not be happier with them. I use one in the house connected to my Yaesu FT-7900 and have the other for my HTs. I have adapters to work with my various HTs and keep that in my go bag.Inexpensive and easy to deploy.
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Posted: 7/24/2016 11:54:52 AM EDT
[#13]
Same here. My N9TAX has been up in a pine tree for over 3 years.
I use it almost every week for our local net and during skywarn activations. recommended. Quote HistoryQuoted:
I love my 2m/70cm N9TAX slim Jim. I put it up temporarily when I moved in my house, and it's been up ever since as my main VHF/UHF antenna. Works great, and buddipole makes an ACME/NPT thread adapter that will let you attach it to the top of a painters pole. |
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Posted: 7/24/2016 12:43:49 PM EDT
[#14]
Quote HistoryQuoted:
I love my 2m/70cm N9TAX slim Jim. I put it up temporarily when I moved in my house, and it's been up ever since as my main VHF/UHF antenna. Works great, and buddipole makes an ACME/NPT thread adapter that will let you attach it to the top of a painters pole. This, I have built several of my own. N9TAX builds them much better and cheap. Just tested one for a buddy having trouble reaching my house. Roll up Jpole at 27 feet on painters pole 33 mil confirmed contact to my simplex repeater at home, (N. Indiana flat farm country.) For longer distances or SSB I use my 4 element arrow take down antenna. |
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Posted: 7/24/2016 6:43:07 PM EDT
[#15]
Four others stated N9TAX, and I have two of them so I would recommend it.
Bill |
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Posted: 7/24/2016 7:39:30 PM EDT
[#16]
Quote HistoryQuoted:
Four others stated N9TAX, and I have two of them so I would recommend it. Bill N9TAX is tops on the roll-up Ed Fong is tops on the PVC this is a pretty good homebrew big stick |
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Posted: 7/25/2016 1:28:31 AM EDT
[#17]
Quote HistoryQuoted: I've got one of those on my house. Its built like a tank and works great, plus will take any wattage you can toss at it. Not the most portable though. I own one of Ed's j poles and it gets used at the camper and for portable work. Once you put it in 3/4 thin wall pvc its only 5' long. I usually just clamp it to a painters pole with a couple spring clamps. Downside to this one is 75 watts max. Quote HistoryQuoted: Quoted: Don't own one, but an Arrow Antenna J-Pole should work well. http://www.arrowantennas.com/osj/j-pole.html I've got one of those on my house. Its built like a tank and works great, plus will take any wattage you can toss at it. Not the most portable though. I own one of Ed's j poles and it gets used at the camper and for portable work. Once you put it in 3/4 thin wall pvc its only 5' long. I usually just clamp it to a painters pole with a couple spring clamps. Downside to this one is 75 watts max. I have read that PVC can affect resonance and SWR. You might try enclosing it in a fluorescent light tube guard. |
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Posted: 7/25/2016 3:29:19 AM EDT
[#18]
Quote HistoryQuoted:
I have read that PVC can affect resonance and SWR. You might try enclosing it in a fluorescent light tube guard. Quote HistoryQuoted:
Quoted:
Quoted:
Don't own one, but an Arrow Antenna J-Pole should work well. http://www.arrowantennas.com/osj/j-pole.html I've got one of those on my house. Its built like a tank and works great, plus will take any wattage you can toss at it. Not the most portable though. I own one of Ed's j poles and it gets used at the camper and for portable work. Once you put it in 3/4 thin wall pvc its only 5' long. I usually just clamp it to a painters pole with a couple spring clamps. Downside to this one is 75 watts max. I have read that PVC can affect resonance and SWR. You might try enclosing it in a fluorescent light tube guard. Any insulator you put an antenna in or near to - PVC, light tubes, plastic poles etc - will change the resonant frequency. It's called dielectric effect. |
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Posted: 7/25/2016 7:45:14 AM EDT
[#19]
Quote HistoryQuoted:
I have read that PVC can affect resonance and SWR. You might try enclosing it in a fluorescent light tube guard. Ed's design has taken this into account and spec's that 5 feet of ¾ inch Class 200 PVC pipe be used. Antenna feedpoint is 10 inches above the connector. U clamps, hose clamps, etc. can be used for mounting up to the first 10 inches of the antenna without affecting performance. |
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Posted: 7/25/2016 9:36:06 AM EDT
[#20]
I inherited a slim jim from my Family, works real good for emcom. Was a requirement for the group grab bag. All the members in my Step fathers ham group which supported the local community all had this antenna and some fishing line to raise it. Swr on 2m was good, couldnt test 440 with my analyzer but it worked well... SIMPLE DESIGN......
Prosise |
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Posted: 7/25/2016 6:07:39 PM EDT
[#21]
Quote HistoryQuoted:
Don't own one, but an Arrow Antenna J-Pole should work well. http://www.arrowantennas.com/osj/j-pole.html A friend of mine makes similar antennas and they work GREAT. http://www.k9jeb.com/OrderForm.aspx |
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Posted: 7/25/2016 6:09:38 PM EDT
[#22]
slim jim hanging from a 31ft jakite fiberglass pole, with an appropriate amount of coax.
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Posted: 7/26/2016 7:35:34 PM EDT
[#23]
Zed Thread on the Arrow below - it really does have problems with pattern distortion, common mode current, SWR on high band etc....
It's a true beauty to behold mechanically, but I'm afraid it suffers from all the typical things that make end-feds like the J-Pole underperform. The Arrow just doesn't measure out very well (not exactly "horrible" as in the forum thread, but not good either...)  ====> https://forums.qrz.com/index.php?threads/arrow-2m-70cm-j-pole-horrible-performance.530036/
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Posted: 7/26/2016 8:16:14 PM EDT
[#24]
We buy diamond x50's for temp work and attach then to pool scrubber poles.
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Posted: 7/27/2016 12:22:02 AM EDT
[#25]
Quote HistoryQuoted:
Ed Fong DBJ-1 J pole. For the money it's hard to beat. I use it as my base station dual band antenna, but it's small and light enough to throw in the Jeep and run up on a painter's pole. I usually just use the roll up j-pole out of my EDC bag or if I'm on the bike the N9TAX slim jim in the saddle bag and some Type A cord to string it up in a tree. |
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Posted: 7/27/2016 1:27:11 AM EDT
[#26]
N9TAX taped or ty-wrapped to two sections of fiberglass milsurp camo net poles.
Put those on top of the GoVertical mast assembly. https://go-vertical-usa.myshopify.com/collections/portable-tripod-mast-kits/products/antenna-tripod-29ft-aluminum-portable-tower-mast-kit You are done. |
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Posted: 7/29/2016 5:55:19 PM EDT
[#27]
Quote HistoryQuoted:
We buy diamond x50's for temp work and attach then to pool scrubber poles. My SAR group/Rescue Squad is getting an X50C2. I'll be sure to let y'all know how it works! |
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Posted: 7/31/2016 12:32:34 AM EDT
[#28]
Is that the commercial version?
I looked at those but it seemed that they were slightly outside of the range that I wanted. Quote HistoryQuoted:
My SAR group/Rescue Squad is getting an X50C2. I'll be sure to let y'all know how it works! Quote HistoryQuoted:
Quoted:
We buy diamond x50's for temp work and attach then to pool scrubber poles. My SAR group/Rescue Squad is getting an X50C2. I'll be sure to let y'all know how it works! |
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Posted: 7/31/2016 2:52:44 AM EDT
[#29]
Quote HistoryQuoted: N9TAX taped or ty-wrapped to two sections of fiberglass milsurp camo net poles. Put those on top of the GoVertical mast assembly. https://go-vertical-usa.myshopify.com/collections/portable-tripod-mast-kits/products/antenna-tripod-29ft-aluminum-portable-tower-mast-kit You are done.  |
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Posted: 7/31/2016 2:59:14 AM EDT
[#30]
Quote HistoryQuoted:
Is that the commercial version? I looked at those but it seemed that they were slightly outside of the range that I wanted. Quote HistoryQuoted:
Is that the commercial version? I looked at those but it seemed that they were slightly outside of the range that I wanted. Quoted:
Quoted:
We buy diamond x50's for temp work and attach then to pool scrubber poles. My SAR group/Rescue Squad is getting an X50C2. I'll be sure to let y'all know how it works! Yeah, its rated just outside of our primary simplex frequencies and a good 4.5MHz outside our primary repeater input. My gut tells me it should be fine for our uses, though... I'm still waiting on Diamond to respond to my email requesting a SWR graph for a wider band. |
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