How do the small low profile omni mobile for VHF
and UHF compare in performance to conventional
1/4 wave (VHF) and 3 dB gain (UHF) antennas? I
have a hard time believing they are anything
close to comparable.

Antennex sells a VHF unity gain model
(TRABT-1420) and a UHF 3 dB gain model
(TRAB-4303). They also hold a patent on 'field
diverse' antenna technology.
http://www.antenex.com/pdfsandzips/megwhitepaper.pdf

I know these antennas are very popular for
public safety applications - does anyone have
real world A:B comparison data comparing them
with a conventional mobile antenna?

Thanks and 73,

Tad Danley, K3TD

On Thu, 16 Oct 2008 02:04:40 GMT, Tad Danley
wrote:

How do the small low profile omni mobile for VHF
and UHF compare in performance to conventional
1/4 wave (VHF) and 3 dB gain (UHF) antennas? I
have a hard time believing they are anything
close to comparable.

[snip]

Your thinking is quite correct. I've got one of their wiz bang "Mean
Effective Gain" rated antennas around here somewhere.

When I measured that antenna mounted top dead center on a vehicle the
performance was substantially worse when compared with a ¼-wavelength
mounted on the same vehicle.

73,
Danny, K6MHE

Tad Danley wrote:
How do the small low profile omni mobile for VHF and UHF compare in
performance to conventional 1/4 wave (VHF) and 3 dB gain (UHF)
antennas? I have a hard time believing they are anything close to
comparable.

Antennex sells a VHF unity gain model (TRABT-1420) and a UHF 3 dB gain
model (TRAB-4303). They also hold a patent on 'field diverse' antenna
technology. http://www.antenex.com/pdfsandzips/megwhitepaper.pdf

I know these antennas are very popular for public safety applications -
does anyone have real world A:B comparison data comparing them with a
conventional mobile antenna?

Thanks and 73,

Tad Danley, K3TD

Check out a 1/2 wave DLM shortened to about 3/16 ... good performance
and small size ... you can get smaller, but performance will decline.

Beats catching bugs! (or, a Texas Bug Catcher!)

Regards,
JS

On Oct 16, 3:08*am, John Smith wrote:
:

Check out a dildo / butt plug shortened to about 3" ... good performance
and small size ... you can get smaller, but performance will decline. If you like small as in kiddies and puppy dogs best go with the real thing like John Smith from California does.

Beats catching the clap or venereasl warts like John Smith did! (or, a California Fag Catcher!)

Regards,
JS- Hide quoted text -

- Show quoted text -