Diamond CPVU-8 Vertical for Shortwave and V/UHF; MV5+3, MV6+3 Multiband HF antenna; DIAMOND CP-6S; DIAMOND CP-5HS; GP-3 / GP-2 W / GP-3W. Diamond Antenna CP5H antennas are 5-band (40, 20, 15, 10, and 6 meter) trap vertical antennas with trap radials. Their light weight ( lbs.). 7/14/21/28/50MHz (40m/20m/15m/10m/6m) 29MHz FM Max. power rating: W SSB (7MHz), W SSB (14/21MHz), W SSB (28/29/50MHz) Impedance.

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The new “S” version includes material which allows an isolated installation of the antenna to the mast. The antenna works on all bands as a quarter wave vertical. Please note cp-5js variants of the 80m radial.

The vertical distance between the U-brackets is 18cm. Expensive but that has no place a great option much better than vertical or wire antennas dummy load.

With more radials the diamohd can be improved further as with an GP. K6FIJan 22, In this band the antenns is surprising in local ou regional qso’s. One thing to add is that I destroyed mine taking it down after it had been up for a year because the screws holding the bits together were so corroded that it was impossible to take apart.

Way better than a MFJ loop on the very same location. Already have many European contacts in the log including 40m. So it would be worth getting some stuff to try to prevent that, when you assemble it.

I have only had this antenna for a week, but it certainly performs as advertised. Connector PL jack, the small transport length only 1. Simple installation, no ciamond required.

Overall I am extremely impressed at this antennas performance in Puerto Rico. The antenna does not require radials, the radiator is grounded. The antenna is made from extruded aluminium tubes, all mounting hardware except mast clamp is stainless steel. I have heard of people having issues getting the Hustler BTV’s to load up correctly because I have been researching them as they are cheap and once you get them tuned, they work but you have to add radials also It when up in around 1 hour on a 10′ pole.


All in all, I am not unhappy with my purchase, although it would be nice if it were a bit less cp-5bs. Sounding more and more like I am getting a new antenna. Nothing great but it does prove that the antenna works. G0GQKJan 24, Diamond multiband vertical HF antenna with shortened radials for 6, 10, 15, 20, 40, 80m.

The Cp5hs is a wideband antenna, so it works also outside the amateur bands. I was shocked by the fit and finish of the antenna when I’ve receive it. A wire antenna withe the same principle is the Diamond BB-6W.

I bought this and mounted it on the roof of our single floor, flat roof, concrete box house on base. Although not now in production, and it should be, I have a Cushcraft R5 which is about 15 years old, and the only time it causes any trouble is when it soaking wet and the 17 metre trap jumps to 1: The resonance frequencies are adjusted for each band separately except 10 and 12m, which influence each other slightly and might require a tuner.

I’m not sure what the difference between the ‘5 and the ‘5H is but it appears the H only covers and can handle higher power. So nice and stable and it did a great job for the day, lots of band activity and little band noise due to a good location away from electrical noise sources, ADSL etc.

Diamond CP-5HS Product Reviews

The factory settings were right on the spot for most bands. G4ILOJan 18, The radiator of the CP-6 is DC-grounded which gives a good protection against static charges and nearby lightnings. For operation on HF no further radials are required! I placed the antenna on a 20′ pole with some gaffer tape around a rainwater down-pipe to hold the whole thing firm. A small antenna for radio amateurs with space restrictions.

  ASTM D3393 PDF


This thing is years ahead in terms of craftmanship and materials compared to Cushcraft. I thought I should give an update on this antenna, as my views have changed for the better. Ciamond radiator is grounded, thus preventing static discharge. The antenna is fed with a coax cable of any length, PL connector. I was hoping that with the CP5H being 11 or so foot, that I could mount on a 10 to 15 foot mast and keep it up always.

Diamond CP5H any thoughts? | QRZ Forums

I would still mention the drift when the antenna gets wet, but as a portable antenna that diaond easy to set up with repeatable performance it is pretty ideal. I didn’t have mine mounted any higher than that. On some bands a simple tuner is required, the built-in tuners of many rigs are usually sufficient. Gain on 2m is 2.

Diamond CP5H any thoughts?

Add to shopping cart. If I had this to do over again, I would definitely try a Dipole first.

The antenna can be installed anywhere, either on the rooftop, on the trailer hook or on a camper car during vacations. Due to diamonv shortened design of the antenna the usable bandwith can be limited, a tuner might be required. New to Ham Radio? Whether the price agrees with the performance remains to be seen.