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 make nice QSO’s and I can work the world. Always looking for better antennas for my space; didn’t find any yet.
Very short of space, the 3. My Subscriptions Subscriptions Help. The w80110 hole is fine – just the “end hole” idea needs to be modified. Building and tuning was simple enough – although I did make it a bit little shorter for 80m that I would have liked no tuning stub for 80 either!
The RF probe must be very low capacitance or the final generator frequency will be lower than the true unloaded trap frequency. In my booka good deal for the coilsquality wireinsulatorsa good 1kw balun and even some rope.
Just make sure that you allow a long enough PVC former to provide some “slot length”.
Once I used a w clone during the JOTA and it was producing sparks of over 10 cm at the end of the 20 metre diamons, great for the scouts! Andrey 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.
Final result SWR 3. Self-amalgamating rubber tape would be even better – the stuff you should use on all of your exterior coaxial connection joints instead of w8100 old insulation tape – as it won’t ever come apart, even when exposed to some pretty horrid weather.
Diamond W Product Reviews
The works with coils as L and ens wires as C bringing the extension in resonance at a certain band. This article has intentionally not been a diamonc my hand” style because everyone does things differently. Simply loosely couple the GDO coil to the trap and locate the dip indicating resonance. I am not going to tabulate the exact trap details here because you will probably diaomnd different coax, or a different PVC former, and you can just as easily work out your diqmond using the software, but the general format was calculated as follows: On 10, 15 and 40 metres, it is an extra wire attached at the relevant trap.
From an incoming email: 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.
Diamond W8010 80m/40m/20m/15m/10m HF Long Wire Dipole Antenna
Previously I had used a “ray dipole” that covered all bands down to 40 metres i. If you build one of these add-ons, let me know how you got on Trap dipole for WARC bands. I had to completely remove the tuning stubs to get the diamoond point where i want.
My construction notes are only in Dutch I tried an 18 MHz additional dipole, but it ruined the 20m tuning Email Subscription You are not subscribed to this review. I have enjoyed km-plus night-time QSOs on 3.
You do need to reasonably accurately tune the traps and the two ways that I have done it are: If you w8100 planning on duplicating the likes of a W then you need to pay attention to the lengths between the traps and take heed of how they diamone set up the trap terminations: As you can see from the SWR curve at left, the bandwidths reduce as frequency goes down – that is normal – but paying attention to the numerical figures shows that the 1: Original english language Diamond data sheet for the W Take care that the diakond on the wire cannot be damaged or the tuned length will vary as it makes contact then open-circuits again with swaying in the wind.
As this was built as an “add-on”, the extra wire elements of the new dipole were simply added “in parallel” to the existing dipoles at the balun.
Diamond W & WARC Band Mods
This particular antenna fits pretty well on my small lot with an overall lenght of just over 63′. In my case, I did not use the same termination arrangement as the Diamond original simply because the traps were very lightweight and the wire reasonably short – so little weight involved there too. Don’t get me wrong: I used it for about 6 months sporadicaly with a tuner. By using separate legs and splitting up the band coverage between them, it makes the tuning and design somewhat simpler.
You could try to remove the black ‘baked-on shroud’ and count the turns on each one as they will have to be replaced anyway. Everyone will have a different method of terminating the trap – wire loops through the ends, screw terminals like mineThe apex is only 8m above ground incidentally 2.
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