Thank you to those who replied from the RB list.
My apologies, in my haste to forward the message and since I don't
normally do that sort of thing, I forgot that I have a few mailing
lists in my address book on this machine.
I honestly didn't mean to send that to mailing lists. Sorry about
for the replies. Sorry Kevin Scott for the OT posting.
73,
--
Nate Duehr, WY0X
n...@natetech.com
Yahoo! Groups Links
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This message was checked by NOD32 antivirus system.
http://www.eset.com
I use an older raduo shack one with my arcom rc-210. It works great, unlike
the midlands, it mutes the rx when it recieves the end of message data burst.
I probed around and found the line that mutes the audio when not active and ran
that to an alarm/logic input on the 210. Then ran audio in
What Radio Shack model are you using?
Joe
Robert Pease wrote:
I use an older raduo shack one with my arcom rc-210.
Re: [Repeater-Builder] Weather Alert Radios...The Midland doesn't utilize
EOM, you are correct. My solution was to have the controller simply time out
the WX receiver when I want it to happen. The radio will reset in a few
minutes anyway. I actually don't like the EOM. If you happen to not
Just reading the mail here and I had the same problem with the Reecom
1650c weather radio. What I did was leave the audio live to the RC-210
aux audio input all the time, then when the alert comes through the
alert macro turns on the aux audio and then can program a timeout
timer to your
I have a GR1225 repeater interfaced to the Port 1 of an NHRC7 controller.
PL/DPL decoded audio will key the repeater but COS alone will not. The PL
light on the NHRC7 does not light up when there is a valid PL signal.
The strange thing here...
If I move the cable from the GR1225 from port 1 to
I just did a comparison on my Magnavox TB100. A snowy analog picture becomes
slightly snowier when passing through my converter. So yes, there is more
loss going through the converter, but not a big amount.
If you are seeing a huge difference, you may have a bad converter.
Unless you are going
A week or so ago, I posted the statement that Motorola had adopted Stabilant
22A as a preferred electrical contact enhancer, and had given it the part
number 1180369E78. I now know that Motorola has discontinued that part
number and replaced it with 1180384V93, priced at $46.
The difference
Eric, That stuff works really well...I've been using it for many years
and it was developed here in Canada by DW Electrochemicals Ltd
in Richmond Hill Ont.
It works well on radio's that have multiple boards interconnected by pins
that become intermittent, such as the Yaesu FT 2400H.
I'm sure
Agood source for 99% pure isopropanol (isopropyl alcohol) is a product
sold under the name Iso-Heat. Available at most auto parts stores.
tom
[Original Message]
From: Eric Lemmon wb6...@verizon.net
To: Repeater-Builder@yahoogroups.com
Date: 1/10/2009 1:58:35 PM
Subject:
Re: [Repeater-Builder] Weather Alert Radios
Gee, ours has never given us anything but Amber alerts (lost kids,
mostly parental custody squabbles). When the last one woke us up at
4AM!!! we unplugged the radio. Not useful in CA.
--
Dave Gomberg, San Francisco NE5EE gomberg1 at wcf
Re: [Repeater-Builder] Weather Alert Radios
Gee, ours has never given us anything but Amber alerts (lost kids,
mostly parental custody squabbles). When the last one woke us up at
4AM!!! we unplugged the radio. Not useful in CA.
--
Dave Gomberg, San Francisco NE5EE gomberg1 at wcf
Re: GLB Preamplifier - Preamp Device (transistor) Information
Hello again Sailors!
The smoking lamp is now lit... smok'em if you got'em
(just a trip down memory lane if you get the above circa
1940-1945 reference).
Anyway... per my previous post requesting anyone who wanted
to
At 11:23 AM 1/10/2009, Dave Gomberg wrote:
Re: [Repeater-Builder] Weather Alert Radios
Gee, ours has never given us anything but Amber alerts (lost kids,
mostly parental custody squabbles). When the last one woke us up at
4AM!!! we unplugged the radio. Not useful in CA.
---Most are
That must be a California thing. Never heard an amber alert here in Western
New York State on NOAA. Tone alerted watches are pretty rare, 99% are
warnings. Just had one yesterday for a Winter Storm Warning.
Chuck
WB2EDV
- Original Message -
From: Dave Gomberg da...@wcf.com
To:
__,_ I use this NWS Receiver http://emergencyalertradio.com/
Good Price and Tech support if needed , Also I got tired of waiting
until Every Wed for the NWS To send A Test to make sure the Unit was
Turning off and on Properly ,
So I was able to obtain the Test files and use My
skip I opened up My 2 meter GLB preamp preselector.
it is an MRF-901.
Years ago there was an article in one of the Ham radio handbooks
that showed a 4 element UHF preamp/preselector that I built for ATV use.
and it too was based on an MRF-901. It worked great.
GaSfets I feel have too much gain,
It is...
Mark - N9WYS
-Original Message-
From: Repeater-Builder@yahoogroups.com
[mailto:repeater-buil...@yahoogroups.com] On Behalf Of Laryn Lohman
Sent: Friday, January 09, 2009 11:21 PM
To: Repeater-Builder@yahoogroups.com
Subject: [Repeater-Builder] Re: OT- Digital TV converter box
Hi Neal,
Rich wb2dss responded (a big thank you Rich) to my last post and
sent out some well lighted high-res pictures of his 2 meter GLB
pre-selector. Another drum roll...
Yes, his pre-amplifier clearly shows an MRF-901 in place as
the active device.
So I'm working up the diagrams for
skipp025 wrote:
Re: GLB Preamplifier - Preamp Device (transistor) Information
This is how I remember it.
From GLB, any preselector-preamp built below 200 MHz used the Bi-Polar
MRF-901. You could, however, have any frequency preamp built with a
GaAs FET if you paid extra for the
It is my understanding there will not be any channels between 2 thru 6
anymore. The govt proposes to auction these frequencies. Checking the list on
www.nab.org shows no stations below ch 7. Buddy KS4QA
At 1/10/2009 09:35, you wrote:
I just did a comparison on my Magnavox TB100. A snowy analog picture becomes
slightly snowier when passing through my converter. So yes, there is more
loss going through the converter, but not a big amount.
If you are seeing a huge difference, you may have a bad
Buddy Case wrote:
It is my understanding there will not be any channels between 2 thru 6
anymore. The govt proposes to auction these frequencies. Checking the
list on www.nab.org http://www.nab.org shows no stations below ch 7.
Buddy KS4QA
I only wish it were so. If you are referring to:
At 1/10/2009 11:36, you wrote:
That must be a California thing. Never heard an amber alert here in Western
New York State on NOAA. Tone alerted watches are pretty rare, 99% are
warnings. Just had one yesterday for a Winter Storm Warning.
Chuck
WB2EDV
I've never heard an Amber Alert over the NWS
I don't know where you see that. There are already some low band DTV stations
active. The FCC database also indicated several that will move back to low band
for DTV.
Give us the link to the page you were looking at.
Chuck
WB2EDV
- Original Message -
From: Buddy Case
To:
They do it here in the Chicago area.
However, some SAME radios cannot receive the alerts. (like the one I have at
home.)
Mark - N9WYS
-Original Message-
From: Repeater-Builder@yahoogroups.com On Behalf Of n...@no6b.com
At 1/10/2009 11:36, you wrote:
That must be a California thing.
That's what I'm afraid of. It's already nearly impossible to do
anything on 6m around here without problems with ch 2 analog. Once
they go digital on ch 2 I'm expecting even more issues. But I guess
time will tell...
Paul
MCH wrote:
If it's like any other digital transmitters, more.
Joe
Yep, looks like the Bangor station will remain on Channel 2. The only good
thing is that you can transmit on 6-meters and people watching channel 2
won't hear you, but their picture may break up. With analog, they could tell
it was you. What frequencies are the repeater(s)? You might luck out
At 1/10/2009 14:01, you wrote:
A first glance and test of the BF981 indicates/measured a
relative noise figure value of .6dB to .7dB, which is actually
a fair value better than I would have thought for an older
Dual Gate Mosfet circuit. Although a Gasfet would have a lower
(better) noise
At 1/10/2009 18:33, you wrote:
Buddy Case wrote:
It is my understanding there will not be any channels between 2 thru 6
anymore. The govt proposes to auction these frequencies. Checking the
list on www.nab.org http://www.nab.org shows no stations below ch 7.
Buddy KS4QA
I only wish it
That was the original plan, but the TV industry whined about losing
them, so they are back in the TV lineup. There is a CH 2 DTV station in
Harrisburg, PA.
I would say the NAB list is severely outdated.
Joe M.
Buddy Case wrote:
It is my understanding there will not be any channels between 2
Re: GLB Preamplifier
From: w7...@c..
Hi Skipp
What are your intentions re the preamp design.
Hi Ralph,
To get it drunk and try and take advantage of it at the
drive in..? :-) No, not really...
Actually...
To have a really good look at the design, engineering,
If you interfere with the digital signal, the viewer will not know
anything as to there being interference.
All they will see is that they cannot see the channel 2 TV station.
On the flip side, the digital wide band noise generated by the TV
station will probably render 6M totally useless.
The
If you have an analog CH 2, you likely won't have a digital CH 2 unless
they switch back from the DTV channel they have been assigned to their
legacy channel.
In my area, our channel 2 is on CH 25 for DTV. From what I understand,
they will *not* be moving back to CH 2. YE!
Joe M.
Unfortunately for Paul, his station will revert back to channel 2.
Chuck
WB2EDV
- Original Message -
From: MCH m...@nb.net
To: Repeater-Builder@yahoogroups.com
Sent: Saturday, January 10, 2009 11:13 PM
Subject: Re: [Repeater-Builder] DTV ch 2 vs 6m
If you have an analog CH 2, you
I am currently using a model 12-255, it is NLA from Radio Shack, I
picked up a 12-262 Model and it seems to work the same (Mutes on EOM
signal), I haven't opened it up yet to see if I can find the mute line
Rob - KS4EC
What Radio Shack model are you using?
Joe
Robert Pease wrote:
I
See if it simply cuts the power to an LM386 or other obvious audio stage at the
end of the alerts. There might be a nice, solid high-going DC line whenever the
audio comes on.
73,
Paul, AE4KR
- Original Message -
From: ks4ec
To: Repeater-Builder@yahoogroups.com
Sent:
Does anyone remember this PC based controller, might anyone still have
one lying around they want to part with. I thought this controller was
way ahead of its time and would love to play with one again-
Reply on or off list,
Thanks
Rob - KS4EC at comcast dot net
Thats what I found in the current one and it worked great!
--- In Repeater-Builder@yahoogroups.com, Paul Plack pl...@...
wrote:
See if it simply cuts the power to an LM386 or other obvious audio
stage at the end of the alerts. There might be a nice, solid high-
going DC line whenever the
What is the NF of a stock UHF Micor/Mitrek/MASTR II? Anyone ever measured it?
My experience has been that 16 dB gain provides a noticeable improvement, but a
low NF is the real key to success. If the preamp gain is higher than 20 dB,
it's easy to put an attenuator between the output of the
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