On Mon, 18 Apr 2005 11:20:01 -0700, Richard Clark
wrote:


-0.22dBi to +2.2 dBi depending on the proximity of ground and the
level of screening with radials.

I take it that +2.2 is with radials on an elevated ground plane?

--
73 for now
Buck
N4PGW

Ken Bessler wrote:
Is it possible to make a mobile 10m antenna that is
physically shorter than a 1/4 wave whip yet will
preform better than a 1/4 wave whip?

Define "better".
--
73, Cecil http://www.qsl.net/w5dxp

----== Posted via Newsfeeds.Com - Unlimited-Uncensored-Secure Usenet News==----
http://www.newsfeeds.com The #1 Newsgroup Service in the World! 120,000+ Newsgroups
----= East and West-Coast Server Farms - Total Privacy via Encryption =----

"Cecil Moore" wrote in message
...
Ken Bessler wrote:
Is it possible to make a mobile 10m antenna that is
physically shorter than a 1/4 wave whip yet will
preform better than a 1/4 wave whip?

Define "better".
--
73, Cecil http://www.qsl.net/w5dxp

I knew someone would ask that.

Better: higher eirp for a 100w transceiver.

--
73's es gd dx de Ken KGØWX
Grid EM17ip, Flying Pigs #1055,
Digital On Six #350,
List Owner, Yahoo! E-groups:
VX-2R & FT-857

Ken Bessler wrote:
Better: higher eirp for a 100w transceiver.

So how does 3.8 dBi gain from a five foot tall
antenna sound?
--
73, Cecil http://www.qsl.net/w5dxp


----== Posted via Newsfeeds.Com - Unlimited-Uncensored-Secure Usenet News==----
http://www.newsfeeds.com The #1 Newsgroup Service in the World! 100,000 Newsgroups
---= East/West-Coast Server Farms - Total Privacy via Encryption =---

Cecil Moore wrote:
Ken Bessler wrote:
Better: higher eirp for a 100w transceiver.

So how does 3.8 dBi gain from a five foot tall
antenna sound?

Like a 1/4 wvae vertical for 6M.

--
73, Cecil http://www.qsl.net/w5dxp

w3rv

"Cecil Moore" wrote in message
...
Ken Bessler wrote:
Is it possible to make a mobile 10m antenna that is
physically shorter than a 1/4 wave whip yet will
preform better than a 1/4 wave whip?

Define "better".
--
73, Cecil http://www.qsl.net/w5dxp

If the quarter-wave whip is made of ss, then you can make a better antenna
by plating it with copper - or - gold - etc - or replace it with a better
conductor. Then use a better transmission line. Then park the vehicle on top
of a very high mountain to work dx.
so, .... conditionally - yes.

Would you care to postulate the dB increase by plating with copper or gold?

"Hal Rosser" wrote in message
. ..

"Cecil Moore" wrote in message
...
Ken Bessler wrote:
Is it possible to make a mobile 10m antenna that is
physically shorter than a 1/4 wave whip yet will
preform better than a 1/4 wave whip?

Define "better".
--
73, Cecil http://www.qsl.net/w5dxp

If the quarter-wave whip is made of ss, then you can make a better antenna
by plating it with copper - or - gold - etc - or replace it with a better
conductor. Then use a better transmission line. Then park the vehicle on
top
of a very high mountain to work dx.
so, .... conditionally - yes.

On Wed, 13 Apr 2005 20:10:29 -0400, "Fred W4JLE"
wrote:

Would you care to postulate the dB increase by plating with copper or gold?

Hi Fred,

Could be up to 3 or more dB over an unspecified quarterwave efficiency
(±3dB, offer void where permitted by law).

73's
Richard Clark, KB7QHC

It was in comparison to a stainless steel whip. let me be more specific. The
coating of either copper or gold (your choice) of up to 50 mils over the
stainless. Any other plating to allow the proper plating of the copper or
gold shall be limited to 5 mils and materials normally used to facilate
plating over SS.

Compare in dB SS whip before plating to SS whip after plating. I am sure I
have left out something else that may generate yet another waltz on the head
of the pin.

"Richard Clark" wrote in message
...
On Wed, 13 Apr 2005 20:10:29 -0400, "Fred W4JLE"
wrote:

Would you care to postulate the dB increase by plating with copper or
gold?

Hi Fred,

Could be up to 3 or more dB over an unspecified quarterwave efficiency
(±3dB, offer void where permitted by law).

73's
Richard Clark, KB7QHC

Depends on the customer. If the customer is really building a CB antenna,
then I could claim 12 db gain.
But to you folks, I wouild say the gain is marginal at best. But it would be
a "better" antenna.
Wouldn't you say a gold-plated antenna is better than a stainless steel
antenna? After all, it cost a bunch more and the mfgr claims 12 db gain.
--- the part about parking on top of a mountain is the best part of the
recipe. - and gives the most gain. (height-gain).


"Fred W4JLE" wrote in message
...
Would you care to postulate the dB increase by plating with copper or
gold?

"Hal Rosser" wrote in message
. ..

"Cecil Moore" wrote in message
...
Ken Bessler wrote:
Is it possible to make a mobile 10m antenna that is
physically shorter than a 1/4 wave whip yet will
preform better than a 1/4 wave whip?

Define "better".
--
73, Cecil http://www.qsl.net/w5dxp

If the quarter-wave whip is made of ss, then you can make a better
antenna
by plating it with copper - or - gold - etc - or replace it with a
better
conductor. Then use a better transmission line. Then park the vehicle on
top
of a very high mountain to work dx.
so, .... conditionally - yes.