Hi Clint,
Thanks for another of your very interesting pointers on space topics.
I think that many will also find another web site mentioned on the page
shown will find it a very useful
and interesting tool.
_www.calsky.com_ (http://www.calsky.com) will give you all sorts of
information on
On Sat, 16 May 2009 00:07:21 -0400 (EDT), Bob Bruninga
In this case the best application was not sending POSITION, but would be
sending FREQUENCY. This way, you dont need to know where they were (or
find them on the map), but just look at their data and CALL them by
voice.
Bob,
I know I
Sorry
Bad link on my previous message copy paste this one instead.
http://r-
onetrading.com/index.php?page=shop.product_detailsproduct_id=281category_id=70option=com_virtuemartItemid=1#Pacific%20Wireless%20VA24-
16
-
Luc Leblanc VE2DWE
Skype VE2DWE
www.qsl.net/ve2dwe
WAC BASIC CW PHONE
For those who are using WiFi 802,G beam on S band
I just found that my Pacific Wireless WIMAX VA 25 -16 antenna for 2.4GHZ has a
bandwidth starting at 2.5ghz to 2.7ghz (www.pacwireless.com)
Even if at theses frequencies things are a bit larger i'm guessing the 16db
gain figures are surely not
For the benefit of anyone who may experience a similar problem in the future,
Erich, Howard, and I had a discussion of this issue via private email. The
method I described in my prior post apparently does not work with Yaesu rigs,
because they do not allow variation of the transmit frequency
In this case the best application was not sending
POSITION, but would be sending FREQUENCY.
This way, you dont need to know where they were
(or find them on the map), but just look at their
data and CALL them by voice.
my first thought was: THAT'S COOL!
Finding what FREQUENCY someone is
Hi Luc,
Conclusion don't jump too fast on some hamfest deal as what's good for WiFI
is not always so good at 2.4ghz!
This was probably just a typo; if so, pardon the reply...
Wi-Fi and Wi-Max are different things. An antenna designed for Wi-Max
may not operate very well, as you
Not that they were optimum tuned for the 2.5 GHz frequency but what polarity
were the Pringles Can washer antennas that were so popular for
Net-Stumbling a few years ago?
Roger
WA1KAT
- Original Message -
From: Greg D. ko6th_g...@hotmail.com
To: luclebla...@videotron.ca;
At 10:33 AM 5/16/2009, Greg D. wrote:
--snip-
Pretty much every Wi-Fi antenna I've ever seen is linearly
polarized. The diversity antennas are two separate antennas,
usually one vertical and one horizontal, with separate cables going
to two radios. Going circular would
I have toyed with using a comercial medium gain patch array for 2.4
GHz Leos. I would guess that there is no incentive to use circular
pol for terrestrial data links. Even reflections and multi-path
signals would remain linear. Space com is a totally different deal
and circular makes sense if
Hi Roger,
The Pringles Can antennas are linearly polarized along the line of the probe
stuck in at the bottom. It's actually a 1/4 wave feed.
Years ago I took a 7 turn helix and a co-worker's Pringles can out to the
courtyard at work, aiming back into the building just to see how
On 16 May 2009 at 11:16, Stan W1LE wrote:
The fades in reception of 2.4 GHz satellites are due to using a linear
polarization
and NOT a circular polarization. Try a circularly polarized feed.
Or try a H AND a V linearly polarized antenna system,
select in the shack which one to listen
Greg,
You got me thinking about going circular! I am wondering how you build an
omnidirectional Circular antenna? What am I missing as I don't want my
router or my notebook to be directional?
Don
-Original Message-
From: amsat-bb-boun...@amsat.org [mailto:amsat-bb-boun...@amsat.org] On
AMSAT NEWS SERVICE
ANS-137
ANS is a free, weekly, news and information service of AMSAT North America, The
Radio Amateur Satellite Corporation. ANS reports on the activities of a
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Hi Don,
Perhaps use a design such as a Lindenblad or a Quadrifillar Helix; you don't
have enough space to put one on the laptop, so it's got to go on the AP.
Of course, you lose 3db going circular-linear. Maybe that's the problem.
They'd rather double the radios and put one vertical, and
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