The biggest and longest running net here in Chicago, which the NWS itself monitors and takes reports from, is done this way. Been running every Monday and every severe weather situation since I can remember. It is done over 3 or 4 repeaters,VHF and UHF,and a 2M simplex frequency at thesame
Mark A. Holman wrote:
Simulcast can happen on 2 separate frequencies using a device to do it.
Then it's not simulcast anymore. Simulcast is transmitting the same
information on the same frequency from more then one location/antenna.
More then one frequency, and it's multi-cast.
--
Jim
Paul Holm wrote:
In this particular situation, the users don't need to hear each other. This
will be used for running a Skywarn net on two repeaters which are not
linked. Only the net control station needs to hear everyone. Users will be
trained to expect this format.
If there's ever a
Yep, that was my point as well. Seems like a train wreck waiting to
happen for sure. You'd be better off with one guy just manning two rigs
with their own.
Chuck
WB2EDV
Nate Duehr wrote:
Paul Holm wrote:
In this particular situation, the users don't need to hear each other. This
will
Simulcast can happen on 2 separate frequencies using a device to do it.
You will also reccomend spacing of both transcievers several miles away.
off hand I cannot recall the manufacture of such a device unless
someone on this group sells them.
mark h.
Paul Holm wrote:
Ihave a
I am not an expert, but the first mic circuit would need an impedance
transformer, to keep the indivual mic circuits balanced or the audio level will
be less.
73's,
Jim Kh6jkg.
__
Switch to Netscape Internet Service.
As low as
We're not talking hi-fi here. Many radios are
nominally 600 ohm input impedance and it's definitely
not critical. Sure, you could end up with a 300 ohh
load, but the mikes also have preamps in them, so they
probably don't care either.
Just talk 3dB louder.
Bob M.
==
--- [EMAIL PROTECTED]
I did this once a long time ago,put 2 mic elements in one case,wired two
ptt lines on seperate sides of the switch,no interconnections between
rigs at all! Added a selector switch to select either or both. Worked
perfectly even with completely different radios73,Lee
Bob M. wrote:
We're
Here is a little mixer circuit that will work for mixing mics.
I never built this one to really speak for how well it works.
http://www.aaroncake.net/circuits/mixer2.htm
N3FLR - Frank
On 1/29/2006 2:11 PM, [EMAIL PROTECTED] wrote:
I am not an expert, but the first mic circuit would need an
] using two radios in tandem
The technical aspect is moot. Logistically, you can't do it.
You call up the net and a station on both repeaters respond but they
can't hear each other. How are you going to handle that?
Chuck
WB2EDV
Paul Holm wrote:
I have a particular situation where I'd
be
paralleled?
Paul
- Original Message -
From: Chuck Kelsey [EMAIL PROTECTED]
To: Repeater-Builder@yahoogroups.com
Sent: Thursday, January 26, 2006 9:13 PM
Subject: Re: [Repeater-Builder] using two radios in
tandem
The technical aspect is moot. Logistically, you
can't
Ihave a particular situation where I'd like
to use two radios in tandem. The purpose is to be able to run a net on two
repeaters which are not linked. I am looking at using GE Phoenix radios
because of cost and availability.
The idea is to interface two radios in order that
they would TX
The technical aspect is moot. Logistically, you can't do it.
You call up the net and a station on both repeaters respond but they
can't hear each other. How are you going to handle that?
Chuck
WB2EDV
Paul Holm wrote:
I have a particular situation where I'd like to use two radios in
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