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Reviews For: Tennadyne T-7

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

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Review Summary For : Tennadyne T-7
Reviews: 4MSRP: 495
Description:
7 El. 17M-10M Log Periodic
Product is in production
More Info: http://www.tennadyne.com/
# last 180 days Avg. Rating last 180 days Total reviews Avg. overall rating
0045
W0RXC Rating: 2024-07-15
Like the utility of a single antenna for 17M-10M Time Owned: 6 to 12 months.
Very easy to assemble, instructions were clear and all parts fit. Has survived one Minnesota winter so far. SWR is below 1.3 on 17, 15, and 10M. 12M is around 1.6 which is still very usable. Installed at 44 feet above ground performance has been better than expected on DX. If I can hear a station they normally always return the call. Very happy with purchase.
E51AND Rating: 2018-07-08
16 years and still going strong! Time Owned: more than 12 months.
I first put this antenna up in 2002 mounted at 80 feet, 9 feet above a long boom 5 element 20m Yagi. It served me well through Oregon's wind and rain until 2013 when I moved to the Cook Islands. When I took it apart, it came apart easily and was in great condition with light surface corrosion. Three months later I put up the same tower and antenna set-up on Rarotonga in the Cook Islands. It has continued to work flawlessly on 17 through 6 metres.

I took it down again after 5 years here in a hot, moist, salt environment and again, it showed the same light surface corrosion and came apart with no difficulties. It is currently stored while we look for another QTH with space for the array. I have done no maintenance on the antenna save replacing the hardware with SS nuts, bolts and washers. I have never had elements come loose or fall off. Like the Energizer Bunny -- It just keeps going and going . . . . . .

Of COURSE it is a compromise antenna -- I used the long yagi, rated at 10dbd gain by KLM for 20m - my favourite band, but the Tennadyne gave me good gain and F/B for the other bands without overloading the tower and is durable enough to tolerate Oregon's gales and the wild and windy corrosive tropical weather of the South Pacific -- all for a very reasonable price. Can't beat that!!

W5LL Rating: 2005-08-09
Great antenna Time Owned: 6 to 12 months.
Got mine for free which had some of it's elements bent up due to an unfortunate run in with a shredder while it was on the ground at it's previous QTH. The nice ham gave it to me with the condition that I invite him over if I was able to fix it and get it up in the air. Called Tennadyne the next day and described what I needed and $50 and two days later all the parts arrived to fix my new antenna! Everything fit perfectly. SWR is a little high on 10m high up in the band but other than that it was great on the other bands. Used the collins balun Tennadyne recommends with one modification. I put the balun on the mast instead of at the feedpoint which is at the front of the antenna. First contact was to Argentina with the antenna 5' off the ground. It's now up around 65' and I couldn't be happier with the results. We'll see how it holds up this winter as we get ice in this part of the country more than we do snow.
W8JJW Rating: 2002-02-12
Exceeded my expectations Time Owned: more than 12 months.
The T-7 went together smoothly per the instructions..nice fitting components. I used the Collins balun Tennadyne reccommends.
I had it sitting on two milk cartons, the larger elements were even touching the ground, and I worked multiple contacts in Europe on 15M with 100W!
Now at 60ft, 7.5ft above a 4el 20M monobander, it has less than 1.5 SWR across it's bandwidth and performs very well. Couldn't be happier. The only downside is it seems to be noisy during moderate precipitation - rain or snow. The noise is radiated to my other beam as well. This antenna replaced a dual-band trapped beam that had no such noise.
For the conveniance of wide bandwidth, single feedline and efficiency..this is the way to go.