Manager


Manager - NA4M
Manager Notes

Reviews For: HyGain TH7DXS

Category: Antennas: HF: Yagi, Quad, Rotary dipole, LPDA

eMail Subscription

Registered users are allowed to subscribe to specific review topics and receive eMail notifications when new reviews are posted.
Review Summary For : HyGain TH7DXS
Reviews: 20MSRP: 869.95
Description:
Trapped tribander 10/15/20 24' boom
Product is in production
More Info: http://www.hy-gain.com/products.php?prodid=TH-7DX
# last 180 days Avg. Rating last 180 days Total reviews Avg. overall rating
00204.2
W3JK Rating: 2007-10-28
Great antenna Time Owned: 0 to 3 months.
The TH7DXS is an under-rated antenna. It delivers some amazing results with little power. I know that the bandwagon is on trapless yagis such as force12, m2 or the Steppir etc, but this antenna has some real firepower to it. On dead band conditions it takes my 450W PEP across the pond. I have always heard comments like "you are the only loud station from the states side". I am not using high power at all, but just idling my TL922 at 450W PEP into the TH7DXS.
The antenna is great and the results are great. It compares well with the other computer modeled antennas. Excellent reports and SWR is almost 1:1 on all three bands.
I know that the Steppir cult would be upset at me for claiming this antenna as a great one, but it surely is at par with the steppir based on my DX QSO's.
Would I recommend it? Yes, HIGHLY.
G3VOF Rating: 2004-11-05
Great Antenna Time Owned: more than 12 months.
I have had the TH7DXS for many years now, and it has earned me my place on the DXCC Honor Roll...It has a low VSWR (and all over 10m) 2:1 being the higest experienced. The worst thing you will have to do is to blow the crud/rubbish out of the traps from time-to-time that can gather over the years ( but of course that goes for most trap antennas). I had the KLM KT34XA before, and this antenna is as good on performance in my humble opinion. If you want a good used beam, that's affordable to most pockets, and if you have the space you can't go wrong with this big bird..
KE5UT Rating: 2003-02-14
Excellent Time Owned: 6 to 12 months.
I have the TH-7 mounted at 75'. An excellent performer, especially on 10 and 15 meters, with good F/B and solid forward gain. SWR 1.5 bandwidth ~1.2 Mhz on 10, 450 KHz on 15 and 300 KHz on 20. I am pleased with this antenna.
K8JH Rating: 2002-09-19
Solid Workhorse Time Owned: more than 12 months.
I had my TH7DXX up for 20 years at 70' through Michigan storms, summer and winter. It survived viscious winds, ice and lightning. She was a great performer on all bands as I am a DX hunter. I would not hesitate to use one again. I had to take it down when I moved and had a chance to inspect it. For being up 20 years it was in great shape.
HP1BYS Rating: 2002-04-06
GOOD ANTENNA Time Owned: 3 to 6 months.
IT HAS CHANGED MY OLD ANTENNA TA-33M BY MOSLEY, THAT US FOR 6 YEARS, WHICH GAVE ME VERY GOOD RESULTS, FOR THE TH7DX BY HY-GAIN. TO WEIGH THAT THE ANTENNA NOT THIS TO THE RECOMMENDED HEIGHT (ALONE THIS TO 20 FEET OF THE ROOF) AND ACHIEVED THAT THE SWR IS NOT FOR UP 2, IN ALL THE BANDS.
IN THIS SHORT TIME AND ACHIEVED TO CONTACT WITH 26 NEW COUNTRIES FOR MY, USING SINGLE 100 WATTS; INSIDE OF WHICH I CAN MENTION: S2,TR,E3,T2,9N,BD,V5,C9,9U,3X,A5,9Q,ZC4,XW,BV9, YA5T AND HL17FWC; AMONG OTHER. WHAT I FEEL VERY SATISFIED AND I SHOULD CONGRATULATE THE GENTLEMEN OF HY-GAIN FOR SO GOOD PRODUCT.
THANK YOU. HP1BYS, ELIO, 73DX.
VE3HI Rating: 2001-11-24
What a great antenna! Time Owned: 3 to 6 months.
My previous antenna was a battle-weary KLM KT-34XA and I was a bit hesitant at putting up this TH7. I need not have been. It performs every bit as well as the KLM KT-34XA did and I expect that it will be a lower maintenance antenna as well. I have DXCC 310+ countries and, believe it or not, my first QSO after putting up the darned thing was a new one! I sort of miss having the WARC bands though. (Tried a QSO on 18 Mhz with a tuner and it worked fine but I wouldn't make a habit of this).
WB4M Rating: 2001-11-09
Great antenna! Time Owned: more than 12 months.
I bought my TH7DX beam at an estate sale over 10 years ago, and the original owner had bouth it back in 1981. My TH7DX replaced a small 3-element triband beam, and there is absolutely no comparison! My beam is at 55 feet, and I now break pile-ups with 100 watts and before with the 3-element beam I could not break them with 500 watts. Matter of fact, I rarely use my amp anymore and have considered selling it. This antenna has survived ice and Hurricane Fran and all other sorts of WX and zero problems. If something happens to this one, I'd buy a new one the next day.
K8NY Rating: 2001-01-06
Excellent DX Performer Time Owned: more than 12 months.
A fantastic performer, wide band coverage (SWR not exceeding 1.8 to 1 anywhere) on all bands and plenty of gain.
The only knock here is that the hardware and construction could be beefier especially the boom size and the element to boom clamps. Mosley is much better at "beefy" construction (have owned 2 Mosleys previously).
Have mine at 70' and it is a SWEET performer with good F/B and Fwd Gain.
By the way, the proper nomenclature (per the 1998 Hy-Gain by Telex user manual) on this antenna is 'Model TH7DX Broadband Super Thunderbird' There appears not to be a TH7DXX or TH7DXS.
K0RS Rating: 2000-02-01
TH-7 vs KT34-XA Time Owned: unknown months.
I once had a TH-7 and a KLM KT-34 XA up on seperate towers simultaneously. It was interesting comparing the two antennas, but perhaps a moot point now as KLM is out of business and HyGain is reincarnated under MFJ. It will be interesting to see if HyGain's quality control holds up, or if it too becomes "Mighty Flimsy Junk." Anyway, the TH-7 had better SWR bandwidth and better front to back than the KLM, but marginally less forward gain. Weight was nearly equal. The KLM was certainly larger, with a 36' boom length (vs 24'), and mechanically more complex. The 'XA's boom was 3" in diameter, while the TH-7 sported a 2". I never liked the TH-7 boom to element clamps, which have been known to bend or fail under ice loads. The clamps were a recycled Wilson design, a company bought out by HyGain back in the dark ages. KLM and especially Mosley do that much better. On the other hand, the boom to mast hardware is the best in the business... go figure. I kept the KLM and sold the TH-7, but would not be adverse to putting up another should the 'XA become impossible to maintain. Incidentally, there is no such thing as a TH-7"DXX"- it is a (admittedly similar sounding) TH-7 DXS. The old TH-6 was the DXX.
WB4UNA Rating: 1999-12-16
Great Tri-Band Antenna Time Owned: unknown months.
I have had this antenna up for 9 years and have never had any problems with it. It is a very broad band antenna. It covers all the 10 meter band without any problem,swr 1.2 highest I have seen. The other bands are the same way . The antenna went together in no time, it is best to double check your work, and it was in the air.It sets at 75' and works great on DX as well as stateside..The specs are right on this one.