What bands were tested? The Transworld is a 20-10m antenna and its not that diffacult to get reasonable performance in a 13ft vertical on those bands. Do you have some meaningful info on lower bands which is where miracle antennas fail miserably?
prcguy
prcguy
Usually before buying an antenna a regular customer will not only look at the radiation factor but at a bunch of other factors beside the radiation performance such as budget, longevity, versatility, size, easy to use, etc... If only maximum radiation was the issue everyone would get a 5 elements beam elevated at 75' above ground!
It's the same thing when people are looking to purchase a car. If maximum performance was the only factor every single one in the forum would drive a Bugatti Veyron Super Sport: 267 mph, 0-60 in 2.4 secs! But it's not the case. A lot of several other factors have to be considered.
So people can bash and crap on a products as much as they want but a regular user or customer will usually want to see a review such as the following before buying an antenna:
By KF5HBU
Portable Base Antenna Shoot-Out
6 months ago I set out to determine what the best HF Portable Base antenna could offer:
I setup the following antennas:
1) Buddipole Portable Dipole/Vertical
2) Chameleon V3 Antenna 2-160M QRP-250W
3) TransWorld Antennas TW2010 Traveler HF Portable Vertical Antenna
I used a rating scale of 1 through 10, with 1 being Poor and 10 being Excellent. I have also made notes as to why each was rated in the following categories.
The categories that I rated the antennas in are:
A) Longevity: How the antenna lasts before breaking beyond any reasonable repair
B) QRP Performance: As anything can transmit a signal at 100 watts, I decided QRP would be a good thing to use in the tests
C) Ease of Use: How easy is it to setup, take down, tune (if it needed tuning at all)
D) Versatility: How many bands does is work on and portability (size/weight when broken down)
For those who like to read the last page of a book, the winner of the 6 month long antenna shoot-out is the Chameleon V3 Antenna 2-160M QRP-250W.
For those who want to know more, read on!
1) Buddipole Portable Dipole/Vertical
A) Longevity: 2 - Within a week the whip on the buddipole had broken.
B) QRP Performance: 6 - QRP performance was average as might be expected from a shortened antenna.
C) Ease of Use: 7 - Changing the clip on the coild of the antenna each time I changed bands is the major drawback when using the Buddipole. The SWR was also effected by anything that got within 10 feet of the antenna. Was just as easy to setup as any of the other antennas.
D) Versatility: 6.5 - Breaks down into a small package. Covered the bands it was designed to cover, but not nearly as many as the winner of the shootout.
2) Chameleon V3 Antenna 2-160M QRP-250W
A) Longevity: 10 - Heavy duty stainless steel whip, 2 high impact base sections, brass used throughout, it's still up outside after 6 months.
B) QRP Performance: 8.5 - A much longer antenna than one initially is lead to beleive. Although just 13 foot tall, the V3 also utilizes foud 25 foot wires as part of the radiating elements. Results in the best portable QRP experience imaginable.
C) Ease of Use: 7 - The antenna is built in such a way that it forces you to put it together in only one way, the right way.
D) Versatility: 10 - Breaks down into a small package. Covers all of the bands that nearly every operator could ever use.
3) TransWorld Antennas TW2010 Traveler HF Portable Vertical Antenna
A) Longevity: 7 - It was two months before I had the first unrepairable issue, the black knob that is used to tighten one of the moving parts broke. After six months of use the "Permanent Mounting Assembly" is pretty loose.
B) QRP Performance: 8 - Good QRP performance.
C) Ease of Use: 7 - The antenna is easy to setup and forces you into pretty much one setup routine.
D) Versatility: 5 - Gets high marks for breaking down into a small package, but just operating on just 10 & 20 meters doesn't fit the modern day rig.
Source: Chameleon V3 Antenna 2-160M QRP-250W Product Reviews
People and trolls have to stop that bashing non-sense that seem to plagues every single Ham Radio Forums knows by the public.