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Reviews Categories | Antennas: HF: Yagi, Quad, Rotary dipole, LPDA | Hy-Gain TH-3JRS Help

Reviews Summary for Hy-Gain TH-3JRS
Hy-Gain TH-3JRS Reviews: 30 Average rating: 3.0/5 MSRP: $$359.95
Description: Three element triband beam for 10 -15 - 20 meters
Product is in production.
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WB8VLC Rating: 1/5 Jan 22, 2018 15:49 Send this review to a friend
wrong traps, goodbye Bouvet  Time owned: 0 to 3 months
I just picked this antenna up from the local radio store in portland in a hurry as there were no other tri-banders we could get on a 2 day notice and this was the only tri-band yagi that they had on hand.

It was to be installed for my work club station to try the Bouvet dx-pedition on a moments notice.

We had 2 days of install time when our facilities group gives roof access until maybe another 2 weeks due to poor wx, today it is sunny and perfect but of course the MFJ CURSE REARED IT'S UGLY HEAD.

Upon inspecting the parts our members found that the 15 meter director and reflector traps were missing and in their space were 40 meter traps for the hy-gain 5BDQ-S DOUBLET.

The local radio store will take it back but never ever will my club buy anything made by Mighty Fine Junk and we have a couple hundred club members who are not happy.

In a way I'm glad its being returned because looking at what the parts look like, this thing wouldn't last a week in the Northwest weather.
K5RCR Rating: 3/5 May 28, 2015 09:54 Send this review to a friend
OK for 10 years but had toi take it down  Time owned: more than 12 months
I bought the antenna about 10 years ago. It is a compromise antenna and anyone buying it probably understands that. It is very inexpensive for a 3 element yagi that gives reasonable performance.

It is compact and light for a 3 element yagi and that is a big advantage for anyone putting one up for the first time. The assembly instructions were good and the hardware was appropriate for a lightweight yagi. The antenna went together easily and very little adjustment was necessary. However, a portable antenna analyzer like the MFJ259 makes this job very easy.

The antenna went on the mast easily and worked well for a number of years. It could probably be rotated with a TV-type rotator without much trouble.

However, about 3-4 years ago, I began to notice the SWR failures after rainy weather. The antenna is in south Louisiana - it rains alot here, so this became an issue. I don't think the weep-holes are so much of a problem as are the trap end seals. Once breached, the traps get wet, and corrosion sets in. After several trips up and down the tower to try to dry out and seal the traps up, I gave up and relegated the antenna to salvage.

That said, while it worked, it worked well, getting me DXCC with a ten tec omni 6 and an al-811 in about a year of causal operating.
KC5ODT Rating: 0/5 Dec 25, 2014 12:10 Send this review to a friend
total mfj junk  Time owned: more than 12 months
total junk! cheap hardware.had trouble with swr and got new traps under warranty.3 months later same issue.once you take apart the traps you will see why!dont even waste youre money on any of the hy gain/mfj antennas.i got smart after taking it down 3 times in 1 year and bought a mosley cl-33.big difference in price,but money well spent.
VK5SN Rating: 5/5 Nov 22, 2014 07:49 Send this review to a friend
Great to start with  Time owned: 6 to 12 months
I inherited the Gen 1 version that used to be made by Lincoln Engineering. I understand that the quality of these antennas have come down significantly since. I assembled it as per the instructions. Put it up on a tower about 9m from the ground. I have just been amazed on what I can hear and work. I have done some side by side comparisons with my homebrewed OCF and it makes a world of a difference.
W5RHR Rating: 2/5 Jan 1, 2014 13:38 Send this review to a friend
beta match mounting is off  Time owned: 0 to 3 months
I just purchased a th3 jr from mfj/hygain and the drilled mounting holes for the hairpin beta match
are off and don't line up and the arms are not parallel to the mounting clamps on the driven element.
I have a ticket in to MFJ so ill see what the resolution is, but so far the quality is ok and all the parts were there (unless this is the wrong hairpin match)
W4IOA Rating: 5/5 Oct 27, 2012 22:00 Send this review to a friend
works fantastic  Time owned: 6 to 12 months
Now having this antenna for over 6 months and it surviving through 15 days of hard driving rain it still has yet to have any issues. I run bareback, TS-820 or a IC-718 and both work well with this antenna. It's been raining hard and during that time I have made contacts as far as Kuwait and Bahrain, Cape Verde and Argentina, Aruba to the Baltic countries. This antenna has far exceeded the expectations on all three bands. Yes, it tends to bends side to side because the doves find it the place to roost but it has maintained it's low SWR through it all. When purchased, it was in sad shape. I cleaned the traps, replaced the fasteners, and stuck it up 35 feet on a pushup pole. Can't find a better deal today in antennas under $100 ( I have less than $75 total into this one).
VK3ZAZ Rating: 4/5 Sep 29, 2012 02:37 Send this review to a friend
An easy antenna to assemble and erect.  Time owned: 0 to 3 months
My TH3 MK4 had swr issues and the idea of dropping it off my 75 foot tower finding what was wrong, fixing it and getting it back up, was a bit tough for an old timer (66 yo).

My mate said try to make tower climbs less and less go for something reliable.

To this end I bought a new M2 9M2SSB and a near new TH3JRS.
These antenna are ultimately going to end up in VK0 if and when I go down in 2013/2014 so it was an interesting assembly experience.

I assembled the TH3 treated the boom and eleme3nt joints with long life fishoil, sealed the connector and adapted a radio works current balun that fits neatly under the boom of the TH3JRS and uses aluminium straps to the driven element.

Testing near the ground showed it was in the band and once raised well in the bands.

I found it easy to lift with a single rope hand over hand and easy to put in place.

We had a fierce equinoxial storm this weekend and it whipped all over the place but nothing broke.

My only reservation is the power limit.
Now we have 1kw in VK on test I am switching the VL1000 to low power.

Anyone know of the 600 watt rated TRAPS is a conservative rating or will they max out on the DE.

All in all apart from the droopy ends the beam looks neat has good btof and I scored 3D2C ahead of some big guns today running just my 500 watts.

VE7SNC Rating: 2/5 Feb 13, 2012 17:13 Send this review to a friend
poor traps  Time owned: more than 12 months
Antenna worked fine for a beginner, but when it rained the SWR was off the charts. I should have read these articles first guess it is an ongoing problem. Thought maybe the traps were in upside down but NO they suck.
KD8EZU Rating: 5/5 Dec 20, 2011 10:51 Send this review to a friend
The old girl works again  Time owned: months
First off my previous antenna was a G5RV which I still have and, recently a Butternut HF-9V vertical ( which I also love and tunes 80, 40, 30, 20, 17,15,10 AND 6 meters!

I bought this old beam ( luckily complete with no missing parts) for about $40.00. It's about 15 years old. Most of the bolts were rusted ( Duhhh! after 15 years...ya'think? ) but penetating oil freed them up. I also took apart ALL the trap assemblies and found most of the self-tapping screws to be corroded with a poor connection therefore. Perfectly understandable, but some people believe that a 15 year old antenna which lives OUTSIDE, should not suffer any corrosion.... yeah right!

Cleaned all traps and made sure trap covers with holed are pointing down.replaced all clamps with hose clamps, and wrapped trap joints ( but DID NOT block trap holes ) with 3M electrical tape with cable ties to prevent later unravelling of same. I then treated electical tape with 3M silicone paste.

I use a 1:1 balun to connect the coax to the two antenna elements instead of making a rolled up coax balun as described in the instructions. I adjusted the driven element's length for SSB and the use of a balun. The antenna is about 28 ft. up and HANGING from a tree limb and connected to a inexpensive rotator in a rather ingenious way ( sorry about self-praise ) in order to rotate. I am a poor hill billy ham with no money for a tower and a $450+ dollar rotator, and my system works , so for me " it is what it is" ( hate that phrase, but it's catchy)

This is my first beam ( and it was affordable being old as it is ) so I can only compare it to my Butternut HF-9V vertical with 42 radials.., and that antenna is no slouch.

Anyway I noticed that stations that I could not hear on the HF-9V clearly , I could hear VERY clearly on the HyGain TH3. It has a nice F to B ratio and I tested that with a station that was very strong ( and 1800 miles away ) and went from North to South and back again and the difference was mucho noticeable to both him and me.

It tunes 10 , 15 , and 20 meters, with 10 meters seeming to tune best @ about 1:5 to 1. I DO use a tuner for mine just to be on the safe side on 20 meters.

I find with a beam that you can hear stations far away later in the evening than a wire antenna . You also get the benefit of quieter listening ( not the fault of a vertical.., they just hear EVERYTHING in and around them ) if pointed in a direction. I've gotten great signal reports with the antenna also. I plan to raise it about 10 feet hopefully in the spring ( too damn cold now ).

So this is a review of a 15 year old geezer and not a new antenna,but perhaps you're looking at buying a use one.

This is a great beginner's 3-element, 3 band antenna. Even better if you can get it on the cheap. You will need to disassemlbe and clean the anttena (tedious ), but your reward will be a great working antenna

All in all a capable antenna with nothing to apologize for. Stop listening to those who complain about the rain in the traps ( a non-issue if you build the antenns as you're supposed to )

Don't know about the brand new one's but more than likely they're the same.
KF0WU Rating: 4/5 Oct 22, 2011 14:06 Send this review to a friend
Good antenna  Time owned: more than 12 months
Bought mine in the late 80s and it's on it's third tower (3rd QTH). Can't say that I'm sold on F to B ratio...don't believe it's anywhere near what the manual said it would be (25db), but, has acceptable directivity for me. It's survived several 80+ mph windstorms, although I've had to perform some repairs over the years (nearly 25 now). Haven't had the detuning experiences after a rain. Have never used another tribander, so, don't have anything to compare it to. Works for me.
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