Cushcraft X-7 product reviews by real people like you. I have owned 3 of these X7’s antennas, and they are by far one of the best triband antennas I have. Here I have some photos of how I converted two cushcraft Hf antennas into a Homebrewed version of the Cushcraft X7. Additional material was bought. X7 BIG THUNDER TRIBANDER YAGI The X7 Triband Yagi is geared to set new standards in both radiating performance and mechanical.
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The X7 works with some gain and reasonable match transceiver autotuner works well on both 17 c7 12 meters. Be aware, it’s on both sides of the feed system flat straps, including around the bolt holes, the electrical connections, and will act as an insulator, not a conductor. I followed instructions when installed. Here the boom from both antennas cushcraftt combined Because my QTH is near salt water I did add liquid electrical tape around all of the balun’s internal electrical connections and sprayed the entire outside of the balun box with several coats of clear enamel to ensure that no water would get inside the enclosure.
Maximum Gain dBi 15M. It has no rival!!! Just make sure to add the costs of a larger tower, heavier base and cudhcraft rotator.
Several people have said that they had had trouble with the ferrite balun and subsequently found loose connections inside when they opened it up. Once you put this antenna together correctly and get it a reasonable height above ground, you will be amazed at its performance.
I have already recommended and installed other 5 to friends. Engineering the Doublet Antenna December 31, My X-7 weathered Hurricane Sandy’s mph steady winds here very near the Chesapeake Bay for over 24 hours without a scratch. Maximum Gain dBi 20M. December 22, in: Mast Dia in cm. Top Five Amateur Radio Reviews of This took a little more effort than initially expected due to the tight fit of the feed-straps, which required some of the elements to be loosened.
Use mine on 12 and 17 with tuner and it goes great as well. Having been after a decent antenna for some time, I recently managed to buy a used Cushcraft X7 yagi on ebay.
Good for dx-ing with QRP. Or be careful what you bid for on ebay. This time I drilled small hole on end of each one so any water in main boom can drain.
I convinced him the X7 is really good antenna and would get out of literally the Hole he is now living in. The flat aluminum straps that make up the feed system d7 come out of the box with a thin clear plastic film tape covering on them. Next Ham Radio Go Box.
7x For about 20 years prior to the X-7, I used a Cushcraft A-4 and, yes, though I had to rebuild the traps and replace all of the original hardware with stainless steel, the antenna worked very well. Click on pic to goto to manual page. Maximum Power Handling kw. My antenna is installed at 52 feet on Rohn 45G tower.
New to Ham Radio? The input impedance of the antenna is ohms so a 4: The are also shown mounted on the boom This is a great HF antenna even on 17 and 12m bands. This will take additional time, but you will be glad you did it.
Cushcraft Amateur Radio Antennas
Information on my Radios. The photo below shows the boom assembled, and what we thought was the elements in the right order. I have gotten a lot of emails asking for the spacings for the X None of us noticed this covering during construction. This is what I enjoy doing in Ham radio. Their mission was to redesign the original A-4 tri-bander while maintaining its reasonable 18 foot boom length. Leave a Reply Cancel Reply You must be logged in to post a comment.
This is the connecting cuehcraft the driven elements using flat aluminium and also seen is the matching system used. This is how I used the original centre insulators for the driven elements plus the two insulators I built by xx7 fiberglass cloth in a cylindrical manner to make a solid insultor If you want flat SWR values across the band, then you will need to go with a full size 4 element monobander of your choice. There is one big potential “gotcha” that is easily missed and is cuscraft discussed in the instruction manual Cushcraft, me and my assembly team believe that you need to address this!
I installed the Cushcraft X-7 about 8 months ago and have now had enough time with it to make what I think is an honest opinion and performance observation based on my type of amateur operation.
GM4NHI has an excellent review of the X7 and photos of the large number of components in the antenna on his site. Reviews Summary for Cushcraft X I have owned 3 of these X7’s antennas, and they are by far one of the best triband antennas I have owned in over 30 years hands down. The Cushcraft design team got this one right.
Just as impressive is its mechanical robustness over many years in the face of the Chicago-area’s summer thunderstorms, especially given our location very near the shore of Lake Michigan, where high winds can sweep in unimpeded from the big lake.
I really would have liked to buy the size that would fit into 1in aluminium tubing but just went along with some homebrew tubes The driven element is an L-P array with some broadband characteristics. I can imagine that this is the cause of some problems if you mount a used antenna with a downloaded manual from the internet.
Very happy with the antenna.
The centre piece had to be reinforced on the inside to support the weight.