goofy antenna

[slowmover]

Do these vehicles qualify?

Looks like most of the grounding work is done.

So an IMAX 2000 on the Chevy ain’t really a “goofy antenna”, right?

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[Varmonter]

I for one don't want to broadcast my broadcasting...Having that thing light up everytime I key down just seems silly..And you can't even see if it's working going down the road...I like to enjoy my toys..

 

[jcrmadden]

So an IMAX 2000 on the Chevy ain’t really a “goofy antenna”, right?

No worse that a stacked pair of MaCo V-Quads on a Tacoma...

Not that anyone would ever... you know... do that...

 

[niceguy71]

goofy... but Radioddity spent a lot on research and development for this 49" mobile antenna
might be worth a try.... maybe if I painted it black it wouldn't look so goofy

radioddity cbl-561

Radioddity CBL-561 Telescopic Antenna | 25-30mhz | 10m 11m | SWR 1.2-1

This antenna supports a frequency range of 25-30MHz, covering both 10-meter and 11-meter bands. With an impressive SWR of ≤1.3:1 and a high power capacity of up to 1000W, the CBL-561 ensures reliable and powerful transmission.

www.radioddity.com

 

[slowmover]

Except it’s 4’.

 

[slowmover]

When someone buys the 69” Perfect CB Antenna from COMPACTENNA hopefully they’ll grace us with a thread:

COMPACtenna

small HIGH PERFORMANCE Antennas

compactenna.com

I like the reviewer. He’s got atta-tood. Needed for 11M. (See video comments).

There’ll need to be a shoot-out between this and other exotics like PREDATOR 10K, SIRIO 5000 3/8, WILSON 5000 and some others where the coil is mid-mount and the antenna features a flexible whip.

— Weight is a concern, as is an antennas tendency to collect bugs or ice. “Exotic” as removal when the vehicle is parked to avoid theft and to clean it off is an expectation

In the meantime, well, . . it’s an eye catcher.

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[nd5y]

goofy... but Radioddity spent a lot on research and development for this 49" mobile antenna

It's just another short antenna with the loading coil a little ways up from the base. The telecoping whip part is so you can adjust it to the frequency you want. It won't cover 25-30 MHz all at once.

 

[jcrmadden]

I know 1.55 is considered an acceptable SWR, but what does that look like in terms of losses?

I'm assuming that figure is more indicative of placement than antenna potential.

 

[G7RUX]

View attachment 174924

When someone buys the 69” Perfect CB Antenna from COMPACTENNA hopefully they’ll grace us with a thread:

COMPACtenna

small HIGH PERFORMANCE Antennas

compactenna.com

I like the reviewer. He’s got atta-tood. Needed for 11M. (See video comments).

There’ll need to be a shoot-out between this and other exotics like PREDATOR 10K, SIRIO 5000 3/8, WILSON 5000 and some others where the coil is mid-mount and the antenna features a flexible whip.

— Weight is a concern, as is an antennas tendency to collect bugs or ice. “Exotic” as removal when the vehicle is parked to avoid theft and to clean it off is an expectation

In the meantime, well, . . it’s an eye catcher.

.

Well, I’ve had a good read through the material on the indicated website and whilst interesting I doubt if the designer has managed to avoid complying with general physics so I would be rather surprised if the designs achieve the claimed aims.

That said, I may order the 2/70 antenna and pop it on the test range…

 

[slowmover]

I know 1.55 is considered an acceptable SWR, but what does that look like in terms of losses?

I'm assuming that figure is more indicative of placement than antenna potential.

Anything less isn’t really a gain, so-to-speak, if it tunes evenly.

Agreed his antenna placement is sub-optimal.

But as it’s a Goofy Antenna this doesn’t matter.

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[slowmover]

Well, I’ve had a good read through the material on the indicated website and whilst interesting I doubt if the designer has managed to avoid complying with general physics so I would be rather surprised if the designs achieve the claimed aims.

That said, I may order the 2/70 antenna and pop it on the test range…

As his other designs are sold at HRO & DX-E I’d say he’s gotten something right. This one is supposedly to be offered at same.

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[G7RUX]

As his other designs are sold at HRO & DX-E I’d say he’s gotten something right. This one is supposedly to be offered at same.

.

I don’t doubt they are a decently-made bit of kit and that they work. However, with antennas you have three main characteristics; efficiency, bandwidth and directivity (gain) and deviating from standard approaches negatively affects one or more of these. The sales blurb suggests that bandwidth and gain are good so I would expect that the efficiency is less good, the physical dimensions also suggest this as the aperture is small.

i shall see if I can get hold of one and give it a going through on the measurement range.

 

[slowmover]

I don’t doubt they are a decently-made bit of kit and that they work. However, with antennas you have three main characteristics; efficiency, bandwidth and directivity (gain) and deviating from standard approaches negatively affects one or more of these. The sales blurb suggests that bandwidth and gain are good so I would expect that the efficiency is less good, the physical dimensions also suggest this as the aperture is small.

i shall see if I can get hold of one and give it a going through on the measurement range.

There are two (2) CB antennas. One has been around awhile (short black cylinder; maybe RX-only?) and the other is just introduced (leading picture in that post above).

Whats written about new model (see Menu) “Perfect CB” doesn’t include much in the way of claims.

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[G7RUX]

Actually, the "Home" page contains a number of interesting claims once you have waded through the absolutely awful page design.
Interestingly amongst the claims made are the numerous awards, none of which I have been able to find note of.

I have questions about a number of features of his designs and the measurements to back up his claims including the deeply weird choice for measurement of gain...

 

[G7RUX]

By way of an update I have been reading everything I can find about this chap and his antenna designs...much of what I can find is quite interesting but not in a wholly positive way.

Teardown photos of one of the antennas are quite disappointing, with the internals constructed in a most terrible way with messy sealant all over the place. Further information about the actual design has been most enlightening and I am wondering why the US Patent Office issued the designer a patent when there is clear prior art from more than 40 years ago...

In summary, buy one if you want but caveat emptor!

 

[dlwtrunked]

I know people love the Siro 5000 performer.... someday I would like to try it, and the Styker AR 10.... but the Stryker just looks a bit much for my taste... I was looking at the Siro 5000 and found this set up......
I think the kids in town would point and laugh at me every where I went if I had this crazy set up on the top of my pick up truck
also being single... I'm sure any woman I went to pick up on a date with this goofy thing on the roof... would tell me to keep driving.

maybe it's just me..... but I wouldn't put this on anything I own.

I once had a discone on my Toyota Corolla roof. I need to go to a meeting at a government agency facility. The security guards at the parking lot debated for 10 minutes whether to let me in (they did). After that, I took it off when going there. On another base, going into a military base, a van passed me going out--it had 2 discones on the roof.

 

[nd5y]

By way of an update I have been reading everything I can find about this chap and his antenna designs...much of what I can find is quite interesting but not in a wholly positive way.

Teardown photos of one of the antennas are quite disappointing, with the internals constructed in a most terrible way with messy sealant all over the place. Further information about the actual design has been most enlightening and I am wondering why the US Patent Office issued the designer a patent when there is clear prior art from more than 40 years ago...

In summary, buy one if you want but caveat emptor!

Many hams and CBers are like audiophools. They will believe and buy anything.

If your antennas are so great then why do you need a new way to measure gain?

The US patent system has been messed up for decades. I don't think you need to prove anything and they don't verify theories or actual samples of devices.

 

[slowmover]

“Planar Coil” is how I’ve seen it described. That same description alluded to how, if it were so good we’d have seen it regularly (paraphrased; The DB, over on WWDX).

 

[K6GBW]

View attachment 173055

Do these vehicles qualify?

Looks like most of the grounding work is done.

So an IMAX 2000 on the Chevy ain’t really a “goofy antenna”, right?

.

Whoa...this is taking grounding way too far.

 

[slowmover]

Whoa...this is taking grounding way too far.

That’s in the aftermath of Hurricane Helene.

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