Just to follow up and close the loop on this thread, I got a
Sinclair MR256 mobile duplexer, threw together a quick test setup and
tested it on my drive to work this morning... it's kicking butt
compared to what it used to do using two separate antennas. I'm now
getting good audio from five miles
Nothing fancy... single-shielded RG-58U. That's an interesting
thought that hadn't occurred to me. And with my vertical-separation
setup with the TX antenna up high, that could certainly be a factor.
- Brian
--- In Repeater-Builder@yahoogroups.com, Ralph Mowery [EMAIL PROTECTED] wrote:
---
On 2/14/07, Brian Rau [EMAIL PROTECTED] wrote:
Nothing fancy... single-shielded RG-58U. That's an interesting
thought that hadn't occurred to me. And with my vertical-separation
setup with the TX antenna up high, that could certainly be a factor.
Usually putting the TX up high is backwards?
ensemble953039 wrote:
Hi,
from the experiments carried out here in the U.K. on in-band and
cross-band portable and mobile repeaters vertical separation is
nowhere near as good as horizontal.This also offers the chance
to get the recieve antenna in a null from the
At 2/12/2007 09:45, you wrote:
Hi,
from the experiments carried out here in the U.K. on in-band and
cross-band portable and mobile repeaters vertical separation is
nowhere near as good as horizontal.This also offers the chance
to get the recieve antenna in a null from the
I would think you'd be best served by getting the duplexer ASAP. If
your intent is to have a smaller, portable, quick to set up
repeater... the duplexer allows you to eliminate one antenna
feedline, sets up more quickly, and works immediately without antenna
jockeying, tuning, etc. (assuming
--- In Repeater-Builder@yahoogroups.com, [EMAIL PROTECTED] wrote:
At 2/12/2007 09:45, you wrote:
Hi,
from the experiments carried out here in the U.K. on in-band and
cross-band portable and mobile repeaters vertical separation is
nowhere near as good as horizontal.This also
Thanks for your input, I was hoping to hear from someone who had
experience with this kind of rig. I've been trying the vertical
antenna separation tactic, which *in theory* puts the antennas in each
others' nulls, but I think the reality is that there's enough pattern
distortion, signal
At 2/13/2007 08:22 AM, you wrote:
Thanks for your input, I was hoping to hear from someone who had
experience with this kind of rig. I've been trying the vertical
antenna separation tactic, which *in theory* puts the antennas in each
others' nulls, but I think the reality is that there's enough
: [Repeater-Builder] Re: Icom portable repeater help
Thanks for your input, I was hoping to hear from someone who had
experience with this kind of rig. I've been trying the vertical
antenna separation tactic, which *in theory* puts the antennas in each
others' nulls, but I think the reality
--- Brian Rau [EMAIL PROTECTED] wrote:
Thanks for your input, I was hoping to hear from
someone who had
experience with this kind of rig. I've been trying
the vertical
antenna separation tactic, which *in theory* puts
the antennas in each
others' nulls, but I think the reality is that
--- In Repeater-Builder@yahoogroups.com, Brian Rau [EMAIL PROTECTED]
wrote:
I'm putting together a portable suitcase repeater for our search
and
rescue team, using Icom F121 radios per this article:
http://www.repeater-builder.com/icom/repeater-mod-for-icom-ic121-
221-series.rtf
I've
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