Probably any broadcast engineer could make a CD recording of the duck
farts from the EAS machines at every broadcast facility in the country. This
played into a signal generator should simulate NWS tests nicely.
Al, K9SI
Keith,
Just buy it already put together and tested. The only controller manufacture
that offers controllers in kit form is Arcom.
Mike Mullarkey (K7PFJ)
_
From: Repeater-Builder@yahoogroups.com
[mailto:[EMAIL PROTECTED] On Behalf Of Keith Dobbins
Sent: Wednesday, May 28,
No sir, not true. ICS has some of their controllers in kit form and they
work very well. I believe there are others also.
Paul
_
From: Repeater-Builder@yahoogroups.com
[mailto:[EMAIL PROTECTED] On Behalf Of Mike Mullarkey
Sent: Thursday, May 29, 2008 7:54 AM
Wayne, you may have a point on the third harmonic cavity tuning. I have
several cans that are marked for 440 and look just like a standard 2 Meter can.
I have looked at the coupling loops and they are smaller than the ones for 2
Meters.
Also, I had two cavities that were marked for 300 mHz
Not wanting to start a flame war, but since I know there are some P25 gurus
on here, I am posting this email exchange between an EDACS user and their local
representative. Its rather self explanatory, I am looking for comments on the
response; specifically, don't P25 radios have an analog mode?
Unit price is high and appears have to buy serial cable and programming
software. One can get a SAME receiver for lot less money and these have
on board keyboard programming, but I did note the receiver had a serial
port, I guess for programming, but could other things be using the port.
I
Paul,
To get NWS to do anything with the EAS SAME alert system would take an
act of God even if you did all the work. The EAS system is an FCC
governed protocall with specific info and format requirements.
When an alert is sent the EAS tone data is sent 3 times, then the
message which is
Wayne,
You are correct. I guess I should have stated the reply better, sorry.
73, ron, n9ee/r
Ron Wright, N9EE
727-376-6575
MICRO COMPUTER CONCEPTS
Owner 146.64 repeater Tampa Bay, FL
No tone, all are welcome.
On Thu, May 29, 2008 at 1:13 AM, Wayne wrote:
You seem to have some
Most if not all P25 radios (both portable and mobile) have the ability
to do analog and digital communications from the same radio. While
most can receive both analog and digital communications on the same
channel if set up for mixed mode use, I am unaware of any that can
transmit on both
Rob,
I think I read right that the RS SAME receiver you have does mute with
the end of message alert tones???
I have the first older RS SAME receiver, the white unit. Which one are
you using???
Not sure about your comment on end of month, hi.
I use my receiver remoted for my repeater
An easy way to get signals from a radio when you don't have access to a
schematic is to open the lead to the LED on the radio you are trying to use and
put the diode of an opto isolator in series with the existing LED. The
transistor portion of the opto isolator can then be used to input the
Keith,
I would think the PC board is a copy writed item. However, as someone
stated NHRC might sell it. Also keep in mind you will need the software
or MPU which I guarentee is copy write. Unless you got from another
controller I don't think you have it. Might have the MPU, but not
Keith,
The “kit” from NHRC is just the board and a few parts (a pic and the dtmf
decoder) they don’t included the small parts or even the 1420. Order the 1420
from them while you’re at it.
http://www.nhrc.net/nhrc-2/
73
Don Kirchner W5DK
On Wed, May 28, 2008 at 10:23
Ron,
I am not sure of the model number, I'll check when I get home
tonight, it has a large LCD display on the front, it also has indoor
and outdoor temp with a wireless remote thermometer.
Yes it does mute and the end of MESSAGE, not MONTH, hard to type on
the treo, sorry.
It seems to work
Great Idea, almost makes too much sense!
Rob
--- In Repeater-Builder@yahoogroups.com, Jim Brown [EMAIL PROTECTED] wrote:
An easy way to get signals from a radio when you don't have access
to a schematic is to open the lead to the LED on the radio you are
trying to use and put the diode of an
Plain 1/4 wave pass cavities usually work just fine at their 3/4
wavelength, i.e. 2 meter pass cans will work @ 440 MHz. I've heard from
several sources that this works with BpBr duplexers as well, though I've
never tried myself - I saw at least one 72 MHz duplexer being sold at
Dayton as a
There won't be dead air. You'll hear weather. If you want the duration to be
shorter than the preset of the receiver, have your controller shut it down
sooner.
Chuck
WB2EDV
- Original Message -
From: Mike Besemer (WM4B)
To: Repeater-Builder@yahoogroups.com
Sent: Wednesday,
It's perfect for me. I don't want the tests over the air.
Chuck
WB2EDV
- Original Message -
From: Daron Wilson
To: Repeater-Builder@yahoogroups.com
Sent: Wednesday, May 28, 2008 8:30 PM
Subject: RE: [Repeater-Builder] Weather Receivers - follow up
We tried a
On re-re-reading the post, I suspect the MA/COM salesman proposes just
adding an analog trunked group to the system and calling that group
talk-around. Just another group in the trunked system. Any group can
be either Provoice (EDACS only) or P25 digital or Analog FM.
To many folks in the
Keith,
The ISD1420 voice IC is a discountinued part and is hard to find at
least at a decent price. So if NHRC will provide one and you need it
get it as Don said. One can find 1000s, but all want much more than a
year ago. The parts suppliers go nuts when they find a part has been
Mike,
I'll look for it. I did it about 5 years ago. It is simple op-amp
with some RC delay. I'll give off list.
I rely on the SAME receiver to do the on/off muting. When the receiver
opens and audio is at the output the VOX keys the tx. Mine is at my
home remoted to my repeater.
Mike,
I would strongly advise you do the test. When one makes something used
only for an emergency or server situation that might come along in 3
months one often finds the system does not work. It died without
notice. Like putting up a repeater one only turns on during a
disaster...it
Trying to think of a way to have the controller shut it down without timing
out, but right now I can't
Mike
WM4B
From: Repeater-Builder@yahoogroups.com
[mailto:[EMAIL PROTECTED] On Behalf Of Chuck Kelsey
Sent: Thursday, May 29, 2008 11:50 AM
To: Repeater-Builder@yahoogroups.com
Subject:
Good point… I actually thought of that after I typed my message.
What I could do is have the Test LED trip a user input on the controller which
would give me some indication that it tested successfully without transmitting
audio. Then a control op could manually reset. Also, that way if
On May 29, 2008, at 8:52 AM, ks4ec wrote:
Remember... RS, You've got questions, We've got answers...Not
necessarily the right answers but we'll make them up if it will make
you happy!
No, no... that's...
You've got questions, we've got cell phones!
--
Nate Duehr, WY0X
[EMAIL PROTECTED]
On May 29, 2008, at 9:31 AM, [EMAIL PROTECTED] wrote:
Plain 1/4 wave pass cavities usually work just fine at their 3/4
wavelength, i.e. 2 meter pass cans will work @ 440 MHz. I've heard
from
several sources that this works with BpBr duplexers as well, though
I've
never tried myself -
I never cease to be amazed at how the simple answer to problems like this get
overlooked.
Give the FD noise cancelling microphones. The less background the mic picks
up the less distortion problem there is.
I've been on an 800 digital sytem for about 13 years now. Our earlier
purchased
On May 29, 2008, at 8:11 AM, Dan Blasberg wrote:
It has been recommended by many organizations, including APCO, that
when on fire ground (scene), any department that has a digital system
should revert back to an analog system for firefighter safety. It
still boggles my mind why some
Oh heck. I thought it was You've got questions, we've got dumb looks.
From: Repeater-Builder@yahoogroups.com
[mailto:[EMAIL PROTECTED] On Behalf Of Nate Duehr
Sent: Thursday, May 29, 2008 3:40 PM
To: Repeater-Builder@yahoogroups.com
Subject: Re: [Repeater-Builder] Re: Simulating a weather
On May 29, 2008, at 7:48 AM, [EMAIL PROTECTED] wrote:
P25 technology in general uses less vocoders and therefore can
sometimes leave out some of the audio.
Wow that's so amazingly... wrong...
Less vocoders... sigh.
Time to send MA/Com's sales guy back to class. Start with Nyquist's
I believe there is more that just amplitude involved Dan. The vocoder
coding algorithm handles sound patterns to (hopefully) improve
intelligibility. I remember part of the selection of the IMBE vocoder
dealt with voice inflection and the receiving station being able to
discern subtleties in
because most of the people working at radio shack knew very little, they
sometimes gave out misinformation.
Some of them maybe had the low power business frequency radios confused
with ham radio.
I recall seing those in Radio Shack cataloga 5 years ago, and listing
certain frequencies
Eric ... wrote:
The R100 service manual is here:
at this TinyURL:
http://tinyurl.com/yvzn2s
The Service Manual does not contain the programming information.
I have the Programming Manual, and need to get it copied to PDF for RB.
(putting this on my list of things to do!!!)
Mike Besemer (WM4B) wrote:
I just picked up a Midland WR-100 weather receiver to replace my sickly
Radio Shack unit here at the house. I've been toying with interfacing a
weather receiver with our repeater for a while and was considering getting
another WR-100 (they're only $29 locally) for
I'm using an unused port on my controller for the weather radio and do exactly
that - use the timeout timer. It simply times out that port until the radio
resets. Works for my application anyway.
Many controllers have user programmable timers that could also be utilized and,
instead of using
The WR100 does the same thing - plays until it times out, at least in the
configuration I use, which is the tone setting. I shorten the broadcast
with the controller.
Chuck
WB2EDV
- Original Message -
From: wd8chl [EMAIL PROTECTED]
To: Repeater-Builder@yahoogroups.com
Sent: Thursday,
OK I found the model number It is a 12-255, Here is a link to a pic
and more info.
http://support.radioshack.com/support_tutorials/weather/12-255.htm
At first glance it says it will remain on for 5 min after an alert
but if you look closer it also says
...VOICE the Weatheradio sounds an
We have NHRC-2 PC boards in stock. They are double-sided, with plated
through holes, solder mask and silkscreen. They are $23.
The programmed microprocessors are also available for $15. (Yes, it
is a better deal to buy the partial kit.) We also have ISD1420s for
our NHRC-2 customers **only**
Midland P25 radios and repeaters do analog and digital both.
- Original Message -
From: [EMAIL PROTECTED]
To: Repeater-Builder@yahoogroups.com
Sent: Thursday, May 29, 2008 8:48 AM
Subject: [Repeater-Builder] P25 (mis)Information?
Nate,
Nice way to demo the concept without actually putting anyone at risk.
I will have to remember that when our P25 Phase 2 system goes active
in 2010, yep, P25 TDMA.
Dan
KA8YPY
On May 29, 2008, at 3:51 PM, Nate Duehr wrote:
On May 29, 2008, at 8:11 AM, Dan Blasberg wrote:
It has
What controller are you using Chuck?
Mike
WM4B
From: Repeater-Builder@yahoogroups.com
[mailto:[EMAIL PROTECTED] On Behalf Of Chuck Kelsey
Sent: Thursday, May 29, 2008 5:28 PM
To: Repeater-Builder@yahoogroups.com
Subject: Re: [Repeater-Builder] Weather Receivers - follow up
I'm using
Link Communications RLC-4
Chuck
WB2EDV
- Original Message -
From: Mike Besemer (WM4B)
To: Repeater-Builder@yahoogroups.com
Sent: Thursday, May 29, 2008 7:22 PM
Subject: RE: [Repeater-Builder] Weather Receivers - follow up
What controller are you using Chuck?
thanks
--- On Thu, 5/29/08, sgreact47 lt;[EMAIL PROTECTED]gt; wrote:
From: sgreact47 lt;[EMAIL PROTECTED]gt;
Subject: [Repeater-Builder] Re: R100 Programming
To: Repeater-Builder@yahoogroups.com
Date: Thursday, May 29, 2008, 5:16 PM
Eric ...gt; wrote:
gt; The R100 service manual is here:
It isn't about the radios - it's about systems.
The Tyco rep was bashing Motorola because the EDACS platform supports
analog talkgroups and/or digital talkgroups as desired by the system
administrator whereas the latest Motorola systems - Smartzone 6.X and
7.X are P25 standards based and are
Rob,
Very good info on the 12-255. I have the 12-249 which was the first one
RS marketed. It has a fixed 5 minute message time which is way too
long.
I think I will consider replacing my 249 with the 255 since it will
terminate the message on the final EAS tones. I have been looking for
Unfortunately they don't make them anymore. But, I saw another model in the
$69 range at RS online that goes for $29 from the manufacturer. The name
started with an s but I can't remember it. Anyway it says that it will mute on
End of message but the manual says a 5 minute timer..
On another
Hi all,
I have a UHF MSR2000 repeater and various RX TX modules. The exciter module
is a VTE4001A for 403-430 MHz. The RX module is a VRE4001B for the 450-512
MHz.
Has anybody had any success tuning these to the 430-450 MHz Ham band? The
curious part is that the existing RX (VRE4001B) was
There is another...
The ICS Basic repeater controller kit is available for $25
www.ics-ctrl.com
73
Brian
ka9pmm
Mike Mullarkey wrote:
Keith,
Just buy it already put together and tested. The only controller
manufacture that offers controllers in kit form is Arcom.
Mike Mullarkey
I could get my radio to generate the 1050 Hz tone into a mic for you and send
it via email if you want. The TK-2180 and the TK-260G that I have both can do
encode for tones.
Let me know.
Peter Summerhawk
-Original Message-
From: Al Wolfe [EMAIL PROTECTED]
To:
[EMAIL PROTECTED] wrote:
Don't worry even the guys on the personal radio website
can't figure this out. No one seems to agree on it.
But it seems like as long as I don't have it ID when no
one is on it then no one here will have a realy issue with
it. Oh wait that was another
Model # L44SUM7000BT
Does anyone know if this will tune down to the UHF ham freqs?
Thanks in advance.
Jack
Steve S. Bosshard (NU5D) wrote:
At a quick glance I see a problem using TA in a trunked radio system because
unless the RF channel is removed from the trunked system and subscriber
radios
set up for conventional TA on that frequency, other traffic on the trunked
system will collide with
Yes it does I think you use Maxtrac software to program it.
tom n8ies
[Original Message]
From: Jack Hayes [EMAIL PROTECTED]
To: Repeater-Builder@yahoogroups.com
Date: 5/29/2008 11:23:20 PM
Subject: [Repeater-Builder] MOTOROLA DESKTRAC UHF
Model # L44SUM7000BT
Does anyone know if this
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