Diamond W product reviews by real people like you. Only at – is a Web site dedicated to ham radio (amateur radio). Find great deals for Diamond W 80m/40m/20m/15m/10m HF Long Wire Dipole Antenna. Shop with confidence on eBay!. Diamond Antenna W Wire Dipole Antennas arrive with the really hard work already done for you! All of the wire lugs and connectors are in place and the.
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I chose it over the similar Comet CWA If your transceiver has an automatic ATU either internal or external, then it won’t be too much of an issue anyway – simply the efficiency of the antenna will drop as you operate further away from resonance.
Diamond W 80m/40m/20m/15m/10m HF Long Wire Dipole Antenna | eBay
The Diamond W is a HF Multi-band wire dipole using 6 traps plus two wire sections each side to cover the non-WARC bands from ’80’ to ’10’ metres hence the coding. A8010 make sure that you allow a long enough PVC former to provide some “slot length”.
I apid more for the masts and for attaching well the masts to the wall. Can I recommend it? In my booka good deal for the coilsquality wireinsulatorsa good 1kw balun and even some rope. You need to expand the turns i. On 20 and 80 diamohd, it is the tail at the end of the dipole legs. Email Subscription You are not subscribed to this review. It’s a mediocre antenna for 5 or more bands. At the moment it is in use with a SB feeding it, no problems with power, only one of the traps shows a little brown coloring.
Here’s another hint for success: By using separate legs and splitting up the band coverage between them, it makes the tuning and design somewhat simpler.
All bands tuned well except 80m, where I have a khz section to use. I am sure many of the visitors diamonf the web page will find your information helpful in either repairing or cloning the W Balun to 24MHz trap length P: Only the ends are a little sensitive the height and moisture.
Building and tuning was simple e8010 – although I did make it a bit little shorter for 80m that I would have liked no tuning stub for 80 either! One of the ideas that they did use in this design as against other manufacturers’ designs seem on the web was the use of tuning “tails”.
Andrey, callsign deleted Russia, Belgorod.
Diamond W – Com-Centre Communiction Equipment Limited
That would have meant another 3 wires out each side and even though they don’t need much separation and can be fabricated such that the higher bands ‘droop’ from the lowest band, they are a bit of a problem to tune.
So I score it 5. So make the ends not too sharp, bend them back. Of course, the same concepts can be applied to making up your own trap dipoles for other bands.
Diamond W8010 80m/40m/20m/15m/10m HF Long Wire Dipole Antenna
Mouse-over images for a larger view. After all it appeared that the balun supplied with the antenna, diamknd defect. I have taken a quick copy of the translated page and put it on my web site to make it easier for those of us who do not read the Dutch language.
Verticals; Wire; Loop Diamond W In due course, I will plot the SWR curves for these new bands and add it to this article. The works with coils as L and ens wires as C bringing the extension in resonance at a certain band.
Very short of space, the 3. That gives a reasonable option to expand the turns during the “tuning phase”. This just fits my backyard which is Now in my readings, there are articles that say the trap should be tuned lower than the band and others that say mid-band.
During a overhaul and cleaning I measured the traps as follow: You cannot measure the inductance of the traps because the capacitance built into the construction will cause measurement errors – you can only measure the trap resonance frequency and you know what they will set up for be anyway.
On 14MHz, the KHz 1.
You do need to reasonably accurately tune the traps and the two ways that I have done it are: I don’t really plan to operate much on these WARC bands 12 metres, 17 metres and 30 metres but that old proverbial Murphy has it that if I don’t prepare for it then sometime real soon, I will need to – and then it will be in a hurry.
If you can’t find anything else to use, trim a piece of outer sleeve off RG58 coax and use diamondd as it will survive the sun’s UV quite well.
Diamond’s power rating of 1. Trap dipole for WARC bands. Other designs see the wire lengths between the traps shortened to fine-tune, which in itself is a very messy and time consuming process.
Mine is hanging only 4m high w8100 I can work the world, contest with nice scores and have great fun. Having now built coaxial traps for a few bands and incorporated them into physical antennas I have noted that the exact frequency of the trap does not seem to be unduly critical.
The balance in the dipole also limits the nearby interference, a problem that is strong with G5RV and other assymetric antenna’s.