SKU: 70783182706

Comet CHA-250HD Multiband HF/VHF

Sale price$179.97 Regular price$199.97
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Description

Comet CHA-250HD Multiband HF/VHFDe Comet CHA 250HD is een hoogwaardige verticale multiband antenne voor radioamateurs die maximale prestaties willen combineren met een compacte en praktische installatie. Deze vernieuwde versie van de populaire CHA 250B biedt uitstekende prestaties op meerdere HF en VHF banden zonder dat er radialen, een antennetuner of ingewikkelde afstellingen nodig zijn. Dankzij het brede frequentiebereik van 3,5 tot 57 MHz voor zenden en 2 tot 90 MHz voor

De Comet CHA-250HD is een hoogwaardige verticale multiband antenne voor radioamateurs die maximale prestaties willen combineren met een compacte en praktische installatie. Deze vernieuwde versie van de populaire CHA-250B biedt uitstekende prestaties op meerdere HF- en VHF-banden zonder dat er radialen, een antennetuner of ingewikkelde afstellingen nodig zijn.

Dankzij het brede frequentiebereik van 3,5 tot 57 MHz voor zenden en 2 tot 90 MHz voor ontvangst is deze Comet antenne een veelzijdige oplossing voor radioamateurs en luisteramateurs die één antenne zoeken voor verschillende toepassingen. Of je nu actief bent op de 80 meter band, de 40 meter band, de 20 meter band of de 6 meter band, de CHA-250HD staat direct klaar voor gebruik.

Breedband prestaties zonder radialen

Wat deze verticale multiband antenne onderscheidt van veel andere HF-antennes is het gebruiksgemak. Er zijn geen radialen nodig en ook een externe tuner is in de meeste gevallen overbodig. Dankzij het slimme transformatorontwerp blijft de SWR doorgaans lager dan 1,6:1 over vrijwel het volledige zendbereik.

Dit maakt de antenne bijzonder geschikt voor locaties waar de beschikbare ruimte beperkt is of waar strenge regelgeving geldt voor antenne-installaties. Met de Comet CHA-250HD haal je een breed inzetbare antenne in huis zonder een uitgebreid antenneveld aan te leggen.

Verbeterd ontwerp voor langdurig gebruik

De CHA-250HD is voorzien van een vernieuwde constructie waarbij het bovenste aluminium element is vervangen door een flexibele whip. Hierdoor kan de antenne beter omgaan met windbelasting en wordt de belasting op de onderste secties aanzienlijk verminderd.

Daarnaast beschikt de vernieuwde transformatorbehuizing over geïntegreerde koelribben die warmte beter afvoeren tijdens gebruik. Dit draagt bij aan een stabiele werking en een langere levensduur van de antenne.

Met een lengte van ruim 7 meter en een gewicht van slechts 3,2 kilogram blijft de antenne relatief eenvoudig te installeren en te onderhouden.

Waarom kiezen voor de Comet CHA-250HD?

  • Verticale multiband antenne voor HF- en VHF-gebruik
  • Geen radialen of antennetuner nodig
  • Frequentiebereik van 3,5 tot 57 MHz voor zenden
  • Ontvangstbereik van 2 tot 90 MHz
  • Lage SWR van minder dan 1,6:1
  • Verbeterde constructie met flexibele whip
  • Ideaal voor locaties met beperkte ruimte
  • Geschikt voor radioamateurs en luisteramateurs (SWL)

Installatieadvies

Voor optimale prestaties adviseert Comet om de antenne zo hoog mogelijk te plaatsen. Een montagehoogte van minimaal 7,5 meter wordt aanbevolen, terwijl een hoogte van 9 tot 10,5 meter de beste resultaten oplevert.

Door de antenne vrij van obstakels te plaatsen profiteer je van een beter stralingspatroon en optimale prestaties op alle ondersteunde frequentiebanden.

Ben je op zoek naar een betrouwbare Comet VHF-antenne en HF-oplossing die meerdere amateurbanden ondersteunt zonder ingewikkelde installatie? Dan is de Comet CHA-250HD een uitstekende keuze voor radioamateurs die maximale prestaties willen halen uit een beperkte ruimte.

Bestel vandaag nog jouw Comet CHA-250HD bij Deltron.nl en ontdek de voordelen van een krachtige verticale multiband antenne zonder radialen.

 

Shipping Notes
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Exchange/Return Notes
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SKU: 70783182706

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4.2 ★★★★★
Based on 30 reviews
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A
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Atlas
Birmingham, US
★★★★★ 5
Great! This surge protector is well designed and built for specific needs.
Nice surge protector/power strip. Good layout of outlets and the one spaced apart is really good. I also love the fact it comes with not two or three USB outlets, but four of them! This is great because there is plenty of room to plug in other devices. The tiny led lights are very small but do light up enough to see that the device is on. The on/off switch works great too and was a must have for my setup. 5 ft of cord length is just what I needed to mount the strip on the wall. (Install screws included) The flat angled plug for the wall is also just what I needed so the design here is perfect. A great value!
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Reviewed in the United States on September 16, 2025
J
Verified Purchase
J. Rew
Port Orchard, US
★★★★★ 5
All The Right Features, and Well-Made
This power strip had everything I was looking for: 6 ft. cord, right-angle plug, at least 2 USB ports, white plastic case, wall-mountable, and at least 4 AC power outlets. All of that might sound pretty straightforward, but this TROND power strip is one of the very few models that meets all the criteria. Here's what I like about power strips in general, and this TROND model specifically: 1. Right-angle plug. A must in my book. Get a right-angle plug whenever possible. They are almost always more convenient and better-looking than straight standard plugs. 2. At least 1 transformer-spaced outlet. If the AC outlets are all too close together, you'll end up sacrificing 1 or 2 of them with a "wall wart" transformer. Just about everybody is plugging in at least one of these outlet-hogging transformers these days. 3. USB power ports. Like transformers, just about everybody has USB-powered stuff to plug in. If you don't have USB ports built into the power strip, then you have to use the USB power adapter which hogs up an AC outlet. I've got at least 2 USB devices to plug into this power strip at any given time, so having the built-in ports is very convenient. Another must in my book. I also like this TROND model for the little touches that make it a bigger value than the price suggests: 1. Includes mounting screws. What? Wasn't expecting that. Very cool. 2. Includes a template for drilling the mounting holes. What? I've never even seen that before. Even cooler. 3. An actual user's manual - in English - and well-written. That blew me away. I totally don't need a user's manual for a power strip, but it was very classy to see it in the box. Well played, TROND. 4. Expensive-looking power switch and power light. This power strip is much better looking than other cheap strips. The plastic is high-quality and "Apple" looking, the power switch is a cut above the generic switches in this price range, and the power indicator light a slick hidden LED that makes the whole package feel high-end. I have expensive power strips from Monster, Belkin, and Tripp-Lite, and this TROND unit appears better made and has fancier features. I'll definitely buy another TROND power strip when the time comes.
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Reviewed in the United States on December 5, 2016
E
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E. Jackson
Waukegan, US
★★★★★ 5
Perfect when you need length.
Color: Black, Size: 15FT Flat Plug
Works great, the ports are perfect, so no more cubes.
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Reviewed in the United States on May 5, 2026
R
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Rick A
Lake Worth, US
★★★★★ 4
Nice strip, wish it had a power on indicator
Color: Black, Size: 6FT Flat Plug
My first strip was DOA, and seemed to have been returned to Amazon. I say this because I was given a replacement and the packaging was different. First it was shrink wrapped, the first device I received was not. Second, the internal packaging was different. I scrapped my original review, and this review is based upon the working strip. This is an attractive power strip with 4 USB charger ports. I like the wall mount holes on both ends that provide a more secure means of attaching the strip to something. Most chargers simply have holes on the back to hang over a screw, this one you can actually fasten to something. The position of the outlets is good for clunky older power blocks provided they aren't too wide. They don't come close to interfering with the usb ports, ensuring you can easily plug in 4 usb cords and 4 power cords without having them get tangled up. My chief dislike are the lack of any power indicator. Almost every power strip I have owned in the last 30 years had some visible way to tell the strip was turned on. The other thing is the indicator to show which side of the power switch is on. The off side has a very visible white dot, which would probably make most people believe that was the "ON" position, it is actually the off position. The on position is marked by a raised black bar(or perhaps it is a 1) which is difficult to see. I think I would have just painted the traditional "on" icon next to the power on end of the switch. Again, a power indicator here would have made all the difference.
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Reviewed in the United States on March 14, 2018
C
Verified Purchase
craig muir
Whiting, US
★★★★★ 5
terrific, low cost power management tool
Color: Black, Size: 6FT Flat Plug, Color: Black, Size: 6FT Flat Plug
I noticed that most of the power outlets I use on a regular basis are behind large pieces of furniture. Every modern device requires at least a little power (even if only at intervals) and many of them have to be periodically unplugged to be rebooted. This invariably leads to a bulky power strip/surge protector at every usage location. Most power strip/surge protectors are very bulky and made to sit on the floor, often in a difficult location for routine access. Unfortunately, “unplugging” from a power strip requires holding the strip firmly in place while simultaneously pulling on the plug. With the strip in a difficult location and the fact that it must be restrained to remove the plug, I typically need a scotch to even attempt it. If that weren't bad enough, most devices use an AC adapter of various different sizes, shapes and orientations. The differences are odd enough that they look like a heterogeneous collection of "rugrats". This further magnifies the problem because power strips are never devised for the space requirements of rugrats. Most power strips assume that everything is a standard 2 or 3 prong plug, lined up in military fashion. So, to make a power strip work, it must often be combined with a variety of cube taps, shifting the vertical dimensions of many outlets to accommodate the different rat dimensions. In some cases, power strips start looking like tenement slums. Power strips that attempt to accommodate the dimensions of rugrats are even bulkier and more difficult to use. The overall problem was difficult enough that I recently decided to just sacrifice the furniture. This surge protector power strip has a very low profile with two screw slots at either end. There are locations on all outlet-blocking furniture where the strips can be screw-attached (see photo). This solves nearly all the problems: (a) the strip is convenient to someone seated in the chair or laying on the bed; (b) it’s strongly secured meaning the plugs can be easily removed and replaced with one hand; (c) it has one wide-spaced outlet for the odd rugrat; and (d) it has multiple USB ports with one ‘C’ type charging port, thus eliminating one rugrat. Given all that and that fact that it’s very reasonably priced, I couldn’t be happier.
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Reviewed in the United States on September 1, 2023

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