It's right up there with the perpetual motion engine and powdered
water. LOL!!
Dick
- Original Message -
From: Q
To: Repeater-Builder@yahoogroups.com
Sent: 20 February, 2006 18:28
Subject: Re: [Repeater-Builder] Solar-Wind Powered
Repeaters
This is a SCAM and has been widely
On Tue, 21 Feb 2006, Q wrote:
Fellows...think about this,seriously! There are NO japanese mobile radio
transmitters rated for 100% duty cycle,most are 20%! What happens when
they overheat? Before they blow up,they put out spurs and junk all over
the spectrum! Adding a fan will help,but only
And the RANGR is rated for 5% TX duty cycle.
Joe M.
Kris Kirby wrote:
On Tue, 21 Feb 2006, Q wrote:
Fellows...think about this,seriously! There are NO japanese mobile radio
transmitters rated for 100% duty cycle,most are 20%!
Not to pick at nits, but the Rangr is a Japanese radio,
Hi
yes I have heard from NHRC and am getting help, so what does V3 do if it
don't use hex.
I have init OK and have changed the passcode, yes I realise
about the FF using the # key and the * for E
Biggest problem I think is me not using a suitable amp on the tx a/f as a
monitor. Will sort that
On Tue, 21 Feb 2006, Q wrote:
Fellows...think about this,seriously! There are NO japanese mobile
radio
transmitters rated for 100% duty cycle,most are 20%! What happens when
they overheat? Before they blow up,they put out spurs and junk all
over
the spectrum! Adding a fan will help,but
Title: Message
In the
message below, I was referring to a charge controllerfor solar use,
not a perpetual motion machine like in the link.
I
believe I built it from an article in Electronics Now (Quite a few years
ago)...
-Original Message-From:
Then there is the proactive approach rather than the reactive approach
which you describe. In the proactive approach, you will have a repeater
set up and ready to go - a GOOD repeater that can handle emergency duty
cycle which typically is much closer to 100%. This repeater will be
stored in a
A friend of mine did a test with a DR-1200 in the hey-day of packet and
checked the radio on a storage o-scope and discovered that the radio was
up at full power long before it was on frequency. :-/
That problem is not unique to Alinco.
We used Kenwood 531's for 1200 MHz packet links, and
On Tue, 21 Feb 2006, mch wrote:
And the RANGR is rated for 5% TX duty cycle.
This crow could use a little salt.
--
Kris Kirby, KE4AHR [EMAIL PROTECTED]
BIG BROTHER IS WATCHING YOU!
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Kris Kirby wrote:
Not to pick at nits, but the Rangr is a Japanese radio, built by Japanese
Radio Corporation, or JRC. It was sold to GE who sold it as thier own and
is a commercial radio.
I wouldn't run a Rangr in repeater service either-at least not at full
output.
--
Jim Barbour
[EMAIL PROTECTED] wrote:
In the message below, I was referring to a charge controller
for solar use,
There have been enough advances in solar chargers with
tracking and mppt operation, that I would tell you to again
research what is the current technology and why it would
be an advantage
Hi Jim
well I intend using Rangrs as a 6mtr rptr, but things are
very different here in the UK. Maximum power out is 25w
so no real problems with the tx burning out the PA, and of course the
maximim time the tx can be used by each person having a qso is 5 minutes
before they have to reaccess the
I don't have a suitcase large enough to carry a repeater with duplexers
suitable fot a 600KHz split.
I am sure that something could be assembled with low enough output to
handle the mobile duplexers that are so abundant for VHF; thre ones
designed for a 5 MHz split. However, I can't see the
On Tue, 21 Feb 2006 [EMAIL PROTECTED] wrote:
I am sure that something could be assembled with low enough output to
handle the mobile duplexers that are so abundant for VHF; thre ones
designed for a 5 MHz split. However, I can't see the beauty of a
portable repeater that is 100% duty cycle
Hi guys .I was wondering when retuning uhf mobile diplexers is it
better to tune for the notch or insersion loss.I have had a few
diplexers tuned by others and they still have a small amount of
desense occuring .When i received a new rfs diplexer the other day ,in
the instructions i have to
I have been looking at taking a single cavity tuned to TX, and a single
cavity tuned to RX to lessen separation needed. This for a firepower
installation with no duplexers.
I am also looking at using a VHF Engineering (OK, poor choice) with the
PA Removed and mobile duplexer as a mobile repeater
On Tue, 21 Feb 2006 [EMAIL PROTECTED] wrote:
In addition, low power FM broadcast station being considered also.
That sounds like a great way to get in trouble with Uncle Charlie, but in
a true disaster when the big guys are knocked off-line, that's a great way
to get the word out.
--
Kris
I agree, I have repaired a DJ-605 about 4 times now due to faulty
Toshiba power bricks.
On 2/21/06, Al Wolfe [EMAIL PROTECTED] wrote:
My Alinco DR-235 is just the opposite. It is very sensitive and works very
well. These radio have very good audio and are working well in my
repeater.
I
Excellent sensitivity especially with an ARR pre-amp on the RX radio. I believe were getting somewhere around .240uv (been a while).
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The radio will most likely not survive 24hr key down very long obviously. With a thermostatically controlled fan it run very efficiently heat wise...
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Mobile duplexers (units that combine receiving and
transmitting to operate with one antenna) are usually
notch-tuned, so the preferred way to tune them is to
reject the other frequency. In other words, you tune
the receive side to reject or notch the transmit
frequency, and you tune the transmit
Most bands don't use a 600 kHz split. Why does everyone assume any
communications will HAVE to be on 2M?
As for the tower, it doesn't have to be on a tower, but many companies
make portable towers or even telescopic poles. If you are ever able to
attend the Dayton Hamvention, you will see a ton
I have the following GE ICOM units up for grabs:
(2) EC - T153.770
(2) EC - T154.935
(2) EC - T154.905
(2) EC - T155.685
(1) EC - T156.000
(2) EC - R159.150
(1) EC - R159.210
(1) EC - R155.490
(1) 5C - R158.835
(1) 5C - R154.905
(1) 5C - R159.210
(1) 5C - R154.385
These are available for
Kris Kirby [EMAIL PROTECTED] wrote:
What if you took two 1/4 wave ground planes, mounted
the RX antenna up top, fed with hardline, and mounted
the TX antenna pointing down, 1/2 wavelength (or 4/2
wavelegths) down from the mounting point of the first
antenna?
Did this on my first 6
I certainly agree that the portable setup is a great idea.
(The following in anecdotal; from a source I usually find to be
accurate).
Motorola sent a number of Semi Trucks to the Katrina area. Each had a
number of trailer mounted, battery operated repeaters, with telescoping
masts. They
Update on what is available.
I have pulled the ones requested so far. Please bear with me, as I had
promised a list member from the previous list I would let him know when
I had more available, and he is getting this info simultaneously with
the rest of the list. I would like to make sure he
At 2/21/2006 02:18 PM, you wrote:
I agree, I have repaired a DJ-605 about 4 times now due to faulty
Toshiba power bricks.
Actually the DR-605 is probably the best radio they ever made. No good for
continuous duty TX, but the receiver is (after retuning) the most
IMD-resistant of any amateur
At 2/21/2006 12:41 PM, you wrote:
I don't have a suitcase large enough to carry a repeater with duplexers
suitable fot a 600KHz split.
I am sure that something could be assembled with low enough output to
handle the mobile duplexers that are so abundant for VHF; thre ones
designed for a 5 MHz
Anything wrong with a simplex repeater for emergency use at about 10 to 25
watts no duplexer needed just set up ant mobile radio with controller and on
the air takes some getting use to but would do in emergency . Most hams
radios can go out of band so could set up on freq needed .( with
I have the CAT1000B Controller, I installed the audio delay board, but
still get the squelch tail at the end of the transmission, even more
so since I hooked in the LDG voter system. Also, on the hour I have
the time set to announce, the repeater will key up, unkey and keyup
again and give
Sounds like he is talking about the little box, and here goes the memory, but the small bandpass filter? Mathew Kevin Custer [EMAIL PROTECTED] wrote: N9WYS wrote:Well, the last VHF Micor I looked at had the preselector in a differentlocation... Or maybe it was an "SP" run. If so, I stand
Thanks bob that's what I feel and complements my tuning where I tuned it for max att at each frequency and the result is a clear signal but it still brings questions about the other diplexers I had tuned elsewhere that show some desense.maybe they tuned them for min insertion loss as well
I have prepared a GE MastrII repeater on 444 with a mobile duplexer,2
port controller,vhf simplex remote powered by a 55ah gel cell. Its
deployable by one person,can be plugged into a cigar lighter or an a/c
outlet. The cost is comparable with two Alinco mobiles,but the
performance is far
Does anyone have a part number for the 8 pin DIN connector used on the
back of ACC96 (RC96) controllers?
thanks,
Fred, AE6QL
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Definately a poor choice for a repeater
mch wrote:
And the RANGR is rated for 5% TX duty cycle.
Joe M.
Kris Kirby wrote:
On Tue, 21 Feb 2006, Q wrote:
Fellows...think about this,seriously! There are NO japanese mobile radio
transmitters rated for 100% duty cycle,most are 20%!
In an emergency is not the time to learn what 100% duty cycle
means,believe me when I say you will regret it. In a pinch,sure,use what
you brung. Proper emergency preparedness dictates having the right
equipment at the ready,so you spend less time cobbling and more time
communicating. After
That would be a stretch to say there were no frequencies within the 2M
band to use. All else aside, simplex repeaters, by definition, double
the communications time. And they are very annoying to listen to.
Joe M.
Dale Pratt wrote:
Anything wrong with a simplex repeater for emergency use at
On Wed, 22 Feb 2006, skipp025 wrote:
finding wave-length and distance nulls in antenna patterns in vertical
sep repeater antennas used on low band is a real chore.
Simple good setups work, getting greedy doesn't have as much fudge room.
Roger that. I was just looking at it from the disaster
On Tue, 21 Feb 2006 [EMAIL PROTECTED] wrote:
FEMA Met them at the state line and turned them away, as Martin Marietta
was the FEMA contractor of record. Martin Marietta responded by sending
a large quantity of unprogrammed radios, with a large bill attached.
No good deed goes unpunished.
Or maybe he was thinking of the Micor Rx Pre-amps?
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My DR-430 went into unlock and is now a wheel chock! Anyone need a parts
rig? I aint fixin it!
Bob Dengler wrote:
At 2/21/2006 02:18 PM, you wrote:
I agree, I have repaired a DJ-605 about 4 times now due to faulty
Toshiba power bricks.
Actually the DR-605 is probably the best radio
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