Bryon Jeffers K0BSJ wrote:
Too many acronyms...
Bryon Jeffers KØBSJ
Rgr that!
;cD
--
Jim Barbour
WD8CHL
Bryon Jeffers K0BSJ wrote:
Well I will agree with Nate on this one.. The crazy D-Star will only do
it's AMBE digital and will not pass analog voice...
At least when using a Quantar/Quantro with P25 capability you can set it up
with CAI (Clear Air Interface)/P25 IMBE and it will do either
James wrote:
Bryon Jeffers K0BSJ wrote:
Well I will agree with Nate on this one.. The crazy D-Star will only do
it's AMBE digital and will not pass analog voice...
At least when using a Quantar/Quantro with P25 capability you can set it up
with CAI (Clear Air Interface)/P25 IMBE and it will
OOp's
My bad
I realized it after I typed it.
Too many acronyms...
Bryon Jeffers KØBSJ
At 09:00 AM 4/24/2007, you wrote:
Bryon Jeffers K0BSJ wrote:
Well I will agree with Nate on this one.. The crazy D-Star will only do
it's AMBE digital and will not pass analog voice...
Jack Taylor wrote:
Along with a custom built repeater project, how about a custom built
basic service monitor? The $1500 and up used/new service monitors are
a necessity for those in the business but for those who only have a
need to tune an occasional radio, a less expensive tool would be
Steve Bosshard (NU5D) wrote:
Cheep Service Monitor - Take a receiver and an oscilloscope and calibrate
the scope to measure transmitter deviation. Then use an inexpensive
frequency counter. For receiver testing find a surplus generator and
use it
with the counter and home made deviation
As an engineer I advise you check out:
http://www.amtronix.com/hp8924c60.htm
I just picked one of these up and it puts my old Wavetek SSI-3000B to shame.
skipp025 wrote:
Nate Duehr [EMAIL PROTECTED] wrote:
how are people testing/working on their D-Star systems?
I can't think of a single SM that knows how to do bit-error
rates and/or other AMBE vocoder functions.
The fudge answer is... most people just connect the equipment
and press
On 4/23/07, DCFluX [EMAIL PROTECTED] wrote:
As an engineer I advise you check out:
http://www.amtronix.com/hp8924c60.htm
I just picked one of these up and it puts my old Wavetek SSI-3000B to shame.
When I was hunting, the 8924 was very tempting... the only thing that
turned me off on it was
On 4/23/07, Jim B. [EMAIL PROTECTED] wrote:
I don't know about D-STar, since it's unique to Icom, but Aeroflex (was
IFR) has a couple of monitors that do P25, and one of those can also do
things like TETRA.
Understand. This is why I personally think using something like P25
for Amateur use
I have appropriately nick named it Death Star. I agree, when (probably
never) the other manufacturers make a compatible radio, I might consider buying
one. Can you say monopoly and price fixing?
There are several Death Star repeaters popping up in Michigan. The P25
repeaters have
On 4/23/07, Shanon Herron [EMAIL PROTECTED] wrote:
There are several Death Star repeaters popping up in Michigan. The P25
repeaters have been around much longer, one in Detroit for over 2 years.
Problem is, the Michigan Repeater Council, MARC, will not recognize P25 but
does Death Star.
I believe I would ask for a 9.6 kb/s digital voice repeater coordination (or
maybe 4.8 kb/s) occupying a 10 khz or 20 khz bandwidth and let the
coordinators sort it out. Be it DSTAR, P25, AOR DV (this works pretty nice
on an FM repeater) Alinco's format or some new and yet to be decided format,
Well I will agree with Nate on this one.. The crazy D-Star will only do
it's AMBE digital and will not pass analog voice...
At least when using a Quantar/Quantro with P25 capability you can set it up
with CAI (Clear Air Interface)/P25 IMBE and it will do either analog voice
or P25 digital. You
Another interesting technique I learned about a couple of years ago for
setting FM deviation, if you don't have something to measure it handy, is
the Bessel-Null method.
This would seem to relate well to the poor-man's service monitor topic.
Randy KC6HUR published some information on this for
On 4/21/07, skipp025 [EMAIL PROTECTED] wrote:
The price of Service Monitors is all over the map right now. I
see prices and availability directly related to the state of
the LMR Industry, location and Ebay Action.
Definitely, Skipp. I hunted for the right deal for my IFR-1500 for three
well as long as there is zero
radiation from the signal source.
73 - Jim W5ZIT
-Original Message-
From: [EMAIL PROTECTED]
To: Repeater-Builder@yahoogroups.com
Sent: Sat, 21 Apr 2007 9:20 PM
Subject: Re: [Repeater-Builder] Service Monitors
I suspect the accuracy of the deviation
General best to look at the eye pattern on the receiver. Steve
I am just getting started with Dstar - have worked Pro Voice and Aegis for a
while. sb
On 4/22/07, skipp025 [EMAIL PROTECTED] wrote:
Nate Duehr [EMAIL PROTECTED] wrote:
how are people testing/working on their D-Star systems?
Along with a custom built repeater project, how about a custom built basic
service monitor?
The $1500 and up used/new service monitors are a necessity for those in the
business but
for those who only have a need to tune an occasional radio, a less expensive
tool would be nice.
Any suggestions?
Cheep Service Monitor - Take a receiver and an oscilloscope and calibrate
the scope to measure transmitter deviation. Then use an inexpensive
frequency counter. For receiver testing find a surplus generator and use it
with the counter and home made deviation meter (receiver / scope
there.
Comments, anyone?
TIA,
Don, KD9PT
off list - [EMAIL PROTECTED]
- Original Message -
From: Steve Bosshard (NU5D)
To: Repeater-Builder@yahoogroups.com
Sent: Saturday, April 21, 2007 4:55 PM
Subject: Re: [Repeater-Builder] Service Monitors
Cheep Service Monitor - Take a receiver
While we are on the subject of service monitors---
An IFR 1100S is available near here---but Im not familiar with this model.
Questions
Is there a complete unit description of this model on the Web somewhere?
What are the weak points?What should I look out for?
Many thanks,
Scott
: Saturday, April 21, 2007 7:07 PM
Subject: Re: [Repeater-Builder] Service Monitors
While we are on the subject of service monitors---
An IFR 1100S is available near here---but Im not familiar with this model.
Questions
Is there a complete unit description of this model on the Web
: [Repeater-Builder] Service Monitors
While we are on the subject of service monitors---
An IFR 1100S is available near here---but Im not familiar with this model.
Questions
Is there a complete unit description of this model on the Web somewhere?
What are the weak points?What should I look out
At 4/21/2007 14:55, you wrote:
Cheep Service Monitor - Take a receiver and an oscilloscope and calibrate
the scope to measure transmitter deviation.
This doesn't quite work. The reason is that the IF filters in NBFM
receivers lop off a bit of the incoming signal, resulting in an inaccurate
@yahoogroups.com
Subject: RE: [Repeater-Builder] Service Monitors
The service manual is impossible to find, saw one on Ebay go for almost 400
Bucks
Paul
_
From: Repeater-Builder@yahoogroups.com
[mailto:[EMAIL PROTECTED] On Behalf Of Scott Overstreet
Sent: Saturday, April 21, 2007
.
73, Eric Lemmon WB6FLY
-Original Message-
From: Repeater-Builder@yahoogroups.com
[mailto:[EMAIL PROTECTED] On Behalf Of Paul Finch
Sent: Saturday, April 21, 2007 7:31 PM
To: Repeater-Builder@yahoogroups.com
Subject: [Norton AntiSpam] RE: [Repeater-Builder] Service Monitors
The service
- Original Message -
From: [EMAIL PROTECTED]
To: Repeater-Builder@yahoogroups.com
Sent: Saturday, April 21, 2007 8:24 PM
Subject: Re: [Repeater-Builder] Service Monitors
At 4/21/2007 14:55, you wrote:
Cheep Service Monitor - Take a receiver and an oscilloscope and calibrate
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