If i read your post correctly, you are trying to achieve omni coverage
and downtilt while maintaining a high level of antenna gain.
I think that you will only achieve what you want by using electrical
downtilting in the antenna. Otherwise you are going to have to trade
off something.
I
Milt,
You gave an excellent description of the problem, and I agree that a lower
gain antenna is called for. However, there is a dirty little secret
regarding fiberglass vertical antennas with electrical downtilt: Their
vertical patterns are quite spoky, meaning that there are many peaks and
At 10/8/2009 06:04, you wrote:
Possible options ?
I decided to poke around on the Bird TX/RX website and found this
little guy ( relatively speaking :-) )
Probably more command post sized than SUV sized but hey.. how big is
that SUV :-)???
At 10/10/2009 07:13, you wrote:
Milt,
You gave an excellent description of the problem, and I agree that a lower
gain antenna is called for. However, there is a dirty little secret
regarding fiberglass vertical antennas with electrical downtilt: Their
vertical patterns are quite spoky, meaning
At 10/9/2009 06:32, you wrote:
I applaud the desire to build a special event 2-meter portable repeater.
I honestly think that most well-intentioned groups don't understand the
technical difficulty to accomplish this task without spending a lot of
money.
However, it begs the question -- isn't
Yeah,
Much lest costly to build a suitcase salellite receiver...
- Original Message -
From: n...@no6b.com
To: Repeater-Builder@yahoogroups.com
Sent: Saturday, October 10, 2009 1:00 PM
Subject: Re: [Repeater-Builder] Question on portable repeaters
At 10/9/2009 06:32,
Thank you very much... all this type of information is
very valuable to people with surplus Decibel Cavities.
And of course all the original people at/with Decibel
are probably lost in time place. So whatever we can
pull out of various archives is great to have available
in the public
I am looking for a CSI CD-2 communication decoder, if anyone has one they'd
like to part with.
TNX and 73's de
KC5DBH Matt
__
Do You Yahoo!?
Tired of spam? Yahoo! Mail has the best spam protection around
http://mail.yahoo.com
Has anybody been successful in running Mototrbo GPS and stream it into the
APRS network. We are building a HAM network and this would be really neat if
its possible.
Mike
Mike Mullarkey K7PFJ
6886 Sage Ave
Firestone, Co 80504
303-954-9695 Home
303-954-9693 Home Office Fax
On Fri, 9 Oct 2009, Matt wrote:
I am experimenting with some 3 Ghz antennas. I have a 2 way power
divider feeding two 120 degree sector antennas rated at 15 dBi each. I
have a 11 dBi omni that I am comparing it too. It seems the omni is
getting better performance then the array is. I am
On Wed, 7 Oct 2009, Paul Plack wrote:
It's hard to beat 440 for a mobile or portable repeater. Tiny
duplexers work, surplus commercial gear is cheap and plentiful, and
many hams have radios for it. The repeater part is easy on 900 MHz and
1.2 GHz, but almost nobody has radios for those
On Fri, 9 Oct 2009, Chuck Kelsey wrote:
I applaud the desire to build a special event 2-meter portable
repeater. I honestly think that most well-intentioned groups don't
understand the technical difficulty to accomplish this task without
spending a lot of money.
I think that a vast number
On Sat, 10 Oct 2009, WA3GIN wrote:
Yeah, Much lest costly to build a suitcase salellite receiver...
I've suggested this a few times to a local group before a large service
event, but priorities get juggled every year and it falls off the mental
map. Or the voter shelf saves the repeater
When I was in college and had a part time job in the summer for a local radio
station, we did many remotes using the 150 Mhz range. We had Marti broadcast
equipment.
Being in northern Wisconsin, it was challenging at times to go out to a resort
in the Nicolet National forest and try to get
Howdy gang,
Does anyone have an operations manual for this instrument?
I sure can't find one on the net.
Bill N5ZTW
Does anyone have any experience with repeater operation vs RC operation
(Remote Control)? I have an RC operator who is 'raising a stink' about a
repeater that is 30 kHz away from one of his RC channels.
BTW, he also wants to 'compromise' by offering to relocate the repeater
off the 52-54 MHz
Tell him to buy another set of crystals for his remote. They are
changeable for reasons like this.
On Sat, Oct 10, 2009 at 9:58 PM, MCH m...@nb.net wrote:
Does anyone have any experience with repeater operation vs RC operation
(Remote Control)? I have an RC operator who is 'raising a stink'
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