, the short answer is no. I have had far too many complaints about
people being brought into full duplex telephone calls and non-radio
endpoints due to Allstar nodes on IRLP.
The philosophy of IRLP is to keep radios on all ends of a link.
Dave Cameron
VE7LTD
I call BS.
--
Kris Kirby
an imploded Lindenblad.
--
Kris Kirby, KE4AHR
Disinformation Analyst
On Fri, 3 Sep 2010, Kris Kirby wrote:
Once you get it figured out, PLEASE write up an article for
Repeater-Builder for the rest of us!!
Make an X with dipole elements, and connect the feed harness to one
side, and connect the left and right sides together with
1/4-wavelength of coax
.
--
Kris Kirby, KE4AHR
Disinformation Analyst
whip - full quieting and S9+.
Motorola Syntor Xs are relatively easy to locate, and can be programmed
for 10m to 6m without any retuning. They were designed for 30-50MHz.
--
Kris Kirby, KE4AHR
Disinformation Analyst
of the
link.
--
Kris Kirby, KE4AHR
Disinformation Analyst
to the
point of designing panel antennas and putting one on each side of the
tower to get a decent pattern. It's difficult to phase antennas and
preserve some form of a pattern with them.
--
Kris Kirby, KE4AHR
Disinformation Analyst
put the NiMH
battery or the NiCD battery on a postal scale. I'll try to remember to
try that out.
--
Kris Kirby, KE4AHR
Disinformation Analyst
but the cans must have a high Q
--
Kris Kirby, KE4AHR
Disinformation Analyst
.
--
Kris Kirby, KE4AHR
Disinformation Analyst
they can
squeeze blood from a turnip, two-way radio will see smaller allocations
and the Big Five telecom players will enjoy allocations in the
multi-megahertz.
But Motorola plays in that market too.
--
Kris Kirby, KE4AHR
Disinformation Analyst
jumpers with RG-400. Also, RG-142, while well shielded, does have
appreciable loss per foot at the higher frequencies.
--
Kris Kirby, KE4AHR
Disinformation Analyst
changes within a
wavelength or less of the antenna, it's tuning will change.
In short, it's an antenna best used as a mobile, where you're likely to
be able to keep it in tune.
--
Kris Kirby, KE4AHR
Disinformation Analyst
it might be.
Obviously, the farther apart the vertical legs are, the stronger the
tower should be. Rohn 45 is 18 per side, Rohn 20 and 25 are 12 per
side. Rohn 45 is a little more comfortable to climb. ;)
--
Kris Kirby, KE4AHR
Disinformation Analyst
$500 now and
$2000 later. Even if it takes three years to implement; swapping out a
fleet of 100 - 2500 radios takes time.
--
Kris Kirby, KE4AHR
Disinformation Analyst
are FCC type accepted and as
long as they transmit a clean signal. Was I correct on this?
For ham use, literally anything as long as it doesn't cause harmful
interference to other services.
For Part 90 use, something narrowband complaint because the deadline is
a loomin'.
--
Kris Kirby, KE4AHR
need to read the radio with RSS to determine what actually sub-range
of those frequencies the radio is programmed/capable of. Or you can
disassemble it and check the parts/modules against a list to see what
band-specific parts are inside.
--
Kris Kirby, KE4AHR
Disinformation Analyst
. It's more noticeable on
some radios, perhaps radios with higher audio frequency response.
Are you set up for transmitting a PL/CTCSS?
--
Kris Kirby, KE4AHR
Disinformation Analyst
.
--
Kris Kirby, KE4AHR
Disinformation Analyst
handling capability.
--
Kris Kirby, KE4AHR
Disinformation Analyst
http://www.youtube.com/watch?v=1jP_D0S2CtY
Watch this to the end. Build the chimes experiment using phone ringing
bells. If you hear them next to the tower, run like heck!
--
Kris Kirby, KE4AHR
Disinformation Analyst
of
the transmit frequencies within the receive bandwidth.
--
Kris Kirby, KE4AHR
Disinformation Analyst
pretty easy. See 97.403 and 97.405.
We're way, wy off-topic.
--
Kris Kirby, KE4AHR
Disinformation Analyst
solar power for the repeater, it might be
just as wise to invest in metal -- more heatsink area and better
heatsinking. Like, for instance, the head off of an old
air-cooled Volkswagen. If you don't need a fan, and the temperature rise
is acceptable
--
Kris Kirby, KE4AHR
Disinformation
it's a very common cable TV
channel!!
What manufacturer makes this robotic device?
--
Kris Kirby, KE4AHR
Disinformation Analyst
to a scanner.
--
Kris Kirby, KE4AHR
Disinformation Analyst
feeds!!! besides it being used for HAM ATV it's a very common cable TV
channel!!
What manufacturer makes this robotic device?
--
Kris Kirby, KE4AHR
Disinformation Analyst
know
when the strike hits.
On the other hand, if you do get a direct strike, your neighbors will be
picking up pieces of glass for months. You will too. =)
--
Kris Kirby, KE4AHR
Disinformation Analyst
go.
--
Kris Kirby, KE4AHR
Disinformation Analyst
carrier +/-4.5KHz wide and you've got a nice large peak on the spectrum
analyzer.
--
Kris Kirby, KE4AHR
Disinformation Analyst
On Sun, 25 Apr 2010, Joe wrote:
Just be careful. At the ERP antenna output levels that you are
playing with and frequencies involved, things can get dangerous for
human exposure.
Anything above 50W, an OET 65 RF Field Study must be done.
--
Kris Kirby, KE4AHR
Disinformation Analyst
and the signal is less
powerful than 450 watts. anyway magnetic fields have no effect at the
human body...what so ever
You'd think that, but have a gander at the FCC Rules, Part 97.13.
--
Kris Kirby, KE4AHR
Disinformation Analyst
still cheaper than the Mitrek
and uses the Mitrek/Motrac accessories.
--
Kris Kirby, KE4AHR
Disinformation Analyst
or Syntor X9000 -- has the helicals of the Mitrek
and excellent suppression of other nearby signals. The radio is only
about 2MHz wide at widest tuning. Every other Motorola radio beyond them
is 22-28MHz wide.
--
Kris Kirby, KE4AHR
Disinformation Analyst
that it may be a Military issue and no information can be found on
this. Is this true?
Generate a new codeplug in the RSS and dial the options around until you
see a model tag that matches the above Model. That will tell you without
reading what you're holding.
--
Kris Kirby, KE4AHR
Disinformation
fine. This is the only RSS I have for
the Sabers. COuld it be an improper version? John Hymes La Rue
Communications 10 S. Aurora Street Stockton, CA 95202
http://tinyurl.com/2dtngmn
Systems Sabers require Systems Saber RSS.
--
Kris Kirby, KE4AHR
Disinformation Analyst
. Beam headings
tend to point to the paging transmitters rather than the possible
mixing source, which is baffling me as well.
Does the paging transmitter have a circulator, or a bandpass cavity
between it and the antenna? Does it stay on one frequency or hop around?
--
Kris Kirby, KE4AHR
is probably a good place to register and complain.
--
Kris Kirby, KE4AHR
Disinformation Analyst
Is anyone aware if the Motorola Motorcycle Spectra (M33) has a different
final amplifier than the regular D33 or D43 models?
Is the M33 setup with a 25W PA that is turned down to 15W and capable of
operation at 10W?
I do not have a manual for the radio, unfortunately.
--
Kris Kirby, KE4AHR
of the radios? (By now it should be a -O part.)
--
Kris Kirby, KE4AHR
Disinformation Analyst
as a 3x, 5x, 7x, 9x, and 11x multiplier and mixer at the same
time. Or it may simply be slipped onto the coax, held in place with a
friction fit and/or cold solder joint
--
Kris Kirby, KE4AHR
Disinformation Analyst
of the shield ring.
I usually strip about 2 of RG-58 of the outer jacket, cut the shield
down to 1/2 from the jacket, then start eyeballing to figure out where
I have to strip the inner conductor to get it out of the end of the
center pin. Or into the center pin, as the case may be.
--
Kris Kirby
. This is not entirely unlike the Motorola
consoles that have select and un-select audio channels. Check out Bruce
Lane's installation: (Controlling it all)
http://www.bluefeathertech.com/kc7gr/thevan.html
--
Kris Kirby, KE4AHR
Disinformation Analyst
a call back, or a response to
my email. Has anyone else had more recent contact with them than three
months ago?
--
Kris Kirby, KE4AHR
Disinformation Analyst
radio for a high-power radio.
Low power radios are good for linking.
--
Kris Kirby, KE4AHR
Disinformation Analyst
for the
challenge if someone's willing to help walk me through what I need to do!
You're in unexplored territory.
--
Kris Kirby, KE4AHR
Disinformation Analyst
it...
but it's seriously technologically flawed. Some of that can be
fixed... other things like the header information not being
interlaced...
There's always DSTAR v2.0... If ICOM is willing to release a flash tool
for the radios.
--
Kris Kirby, KE4AHR
Disinformation Analyst
. The trainer
said, How did you DO that? Before I could reply, my boss (kindly)
said, We didn't hire him for his personality!
My favorite answer is: I think with both halves of my brain at once.
--
Kris Kirby, KE4AHR
Disinformation Analyst
the
most effective radios you can for the job. They should all be MIL-810E
tested or higher.
--
Kris Kirby, KE4AHR
Disinformation Analyst
restarted with the new signal. Of course,
short of doing SDR and de/re-coding on the fly, this is not a trivial
problem to fix. When your RSSI is measured as BER, it's a different
world.
--
Kris Kirby, KE4AHR
Disinformation Analyst
On Thu, 1 Apr 2010, Kevin Custer wrote:
Bob Meister has written a nice article on the Molotora Gontor for RB.
http://www.repeater-builder.com/molotora/gontor/gontor.html
Thanks go out to Bob for his efforts!
If it front-panel programmable (FPP)?
--
Kris Kirby, KE4AHR
Disinformation Analyst
and unjacketed. I've
had way too many problems with aluminum shielded cables to ever
consider buying it again. I'll spend the few extra pennies on the
good stuff (copper).
When you're pricing out 440 feet of coax, the pennies add up to quite a
few dollars.
--
Kris Kirby, KE4AHR
is
capable of writing to its firmware.
i386 virtual machines are great, but it is possible to have something
execute in that virtual machine at 2+ GHz today.
--
Kris Kirby, KE4AHR
Disinformation Analyst
as much as possible, or notch the transmitter's pattern in the direction
of the receiver.
--
Kris Kirby, KE4AHR
Disinformation Analyst
a decade.
Station is not duplex, (originally quoted as LMR-600), but since the
install needs to last a decade, I need good stuff.
--
Kris Kirby, KE4AHR
Disinformation Analyst
destroy your tuning range.
--
Kris Kirby, KE4AHR
Disinformation Analyst
if someone has a microphone
that some dip destroyed out on the road, and put the Whelen cable on the
two-way mic. Most of the Motorola - MA/COM mics are made by Shure
anyway.
--
Kris Kirby, KE4AHR
Disinformation Analyst
could
enable or disable channel steering by the pins.
--
Kris Kirby, KE4AHR
Disinformation Analyst
project indeed.
--
Kris Kirby, KE4AHR
Disinformation Analyst
On Wed, 24 Mar 2010, Doug wrote:
Can someone tell me what the characteristics of this cable are. I
tried google and it didn't seem to know.. I sort of think it might be
a lossy coax but not sure.
http://www.rfparts.com/coax_specs_rg.html
--
Kris Kirby, KE4AHR
Disinformation Analyst
on the line by reading the SWR or
VSWR. I've never read into calculating RF amperage, but I assume that it
would be calculating the amperage feeding a fifty-ohm load from the
VSWR. Can someone correct me on this please?
--
Kris Kirby, KE4AHR
Disinformation Analyst
the paper, the person scanning may determine to make one, two,
or three attempts to scan a given sheet of paper.
--
Kris Kirby, KE4AHR
Disinformation Analyst
appears to enable the audio PA (speaker pops) at about
the same time whether on carrier, PL, or DPL squelch.
--
Kris Kirby, KE4AHR
Disinformation Analyst
the benefit of being able to do this in a number of different
ways, using an isolator shelf with a 250W dummy load, -30dB directional
coupler, and my other directional coupler of unknown rating.
--
Kris Kirby, KE4AHR
Disinformation Analyst
to snuff.
IIRC Motorola usually used about 1W at the exciter to drive the PA to
full power. 1.125W (+33dBm) will put a Mitrek amp up to 125W under
certain conditions. The Micor may have a tripler though.
--
Kris Kirby, KE4AHR
Disinformation Analyst
'.
Early DVP and DES systems used a 16KHz-wide data signal. To repeat these
through the repeater required re-clocking modules. That may be what
you're seeing, that or a DCS(DPL)-type module.
--
Kris Kirby, KE4AHR
Disinformation Analyst
...
--
Kris Kirby, KE4AHR
Disinformation Analyst
could use to get disciminator audio and COS out of the radio
cleanly. Get the owners and service manuals, available through online
search. 73, Paul, AE4KR
None of this is going to work if his objective is repeating D-STAR
information.
--
Kris Kirby, KE4AHR
Disinformation Analyst
but their computer decided that it might be suspicious !
So hopefully this information is helpful to anyone using Paypal to
make payments. I've used them many times in the past and never had a
problem until now. John VE3AMZ
It's because terrorists are Canadian.
--
Kris Kirby, KE4AHR
.
Am I fully OT or not? If so, I'll STFU.
--
Kris Kirby, KE4AHR
Disinformation Analyst
said, if you've ever needed or wanted just work, you know
how important that is. It's probably what's been lacking in almost every
ARES plan.
--
Kris Kirby, KE4AHR
Disinformation Analyst
wheel antenna that has three
petals instead of four.
--
Kris Kirby, KE4AHR
Disinformation Analyst
Has anyone succeeded in getting the alternative S-990 head firmware to
work? If you have, please email me as I am having some difficulty.
--
Kris Kirby, KE4AHR
Disinformation Analyst
and the heat is conducting into the tee.
--
Kris Kirby, KE4AHR
Disinformation Analyst
it showed
up.
--
Kris Kirby, KE4AHR
Disinformation Analyst
.
--
Kris Kirby, KE4AHR
Disinformation Analyst
I see the guidelines for writing; what are the guidelines for scanning
documents?
--
Kris Kirby, KE4AHR
Disinformation Analyst
to the purpose of the repeater. If you need urban coverage,
choose an antenna with more null-fill, or less gain.
If you have to pay for power (or make your own power!), you'll spend
more time working on an antenna that will cover what you need so your
transmitter can be ten watts or less.
--
Kris
at a given frequency, RSSI may be for this purpose when
attached to a receiver. One only need to calculate the pathloss and
know the remote transmitter power.
--
Kris Kirby, KE4AHR
Disinformation Analyst
PAVE-PAWS
installations?
--
Kris Kirby, KE4AHR
Disinformation Analyst
If there are any TV engineers on here who have or have maintained a VHF
superband transmitter (174-210MHz), please email me. I have some
questions, and wonder if you still have schematics.
--
Kris Kirby, KE4AHR
Disinformation Analyst
On Wed, 3 Mar 2010, George Henry wrote:
Re: the waiver request by ReconRobotics for 420 - 450 MHz operation.
Hams get the shaft again...
Who wants to be the first to sue the FCC?
--
Kris Kirby, KE4AHR
Disinformation Analyst
was concerned
about building attenuation. I believe the erp of the devices is
extremely low.
Guys, they have authorized a user to transmit NTSC video in a section of
spectrum reserved for RADAR; NTSC video has no previous nor presently
known use as RADAR.
--
Kris Kirby, KE4AHR
Disinformation
to FM instead of AM
--
Kris Kirby, KE4AHR
Disinformation Analyst
. This slowed down the
voltage output of the 9.5 switched source.
You might have one or more electrolytic capacitors which have dried out.
I think the last Mitrek rolled off the line before I was born, which is
longer ago than I'd like to admit.
--
Kris Kirby, KE4AHR
Disinformation Analyst
on a digital mode... but
a 900 MHz FM Analog with no hook feature to pull people in, I think
would sell dismally, and therefore would have to cost at least that
much...
Come up with an idea and sell it to the fine gentleman from Starkville,
MS.
--
Kris Kirby, KE4AHR
Disinformation Analyst
explained how to use the cable pairs as
resistors to heat up the cable, which has been done a few times in NYC,
resulting in dead pairs in the cable due to too much power/heating on a
given pair.
--
Kris Kirby, KE4AHR
Disinformation Analyst
capacities... Once it is installed properly (and people
critters kept away) the stuff will last through a few generations of
switch equipment.
--
Kris Kirby, KE4AHR
Disinformation Analyst
, except that the vast majority of the radios
that are already at 900MHz use 2.5KHz deviation, not 5.0KHz deviation
(or 10KHz, which would be the result of doubling a 5KHz radio).
--
Kris Kirby, KE4AHR
Disinformation Analyst
is 110-ohms, not 600.
--
Kris Kirby, KE4AHR
Disinformation Analyst
not staying in one place for very long. Then you
can use the spectrum analyzer for what it does best.
--
Kris Kirby, KE4AHR
Disinformation Analyst
it
and unbalanced will be good enough?
unbal to bal is a good idea. It isn't over engineering as Motorola did
this for years with radio accessories. And they only had to go 17 feet.
Getting rid of common-mode interference (ground loops) is worth it.
--
Kris Kirby, KE4AHR
Disinformation Analyst
the amp doesn't go non-linear when trying to amplify 145MHz
and 440MHz at the same time.
--
Kris Kirby, KE4AHR
Disinformation Analyst
at antenna port.
Given the range of most duplexers, it would be unlikely that the cavity
would cause such a situation to exist unless it were struck by
lightning.
--
Kris Kirby, KE4AHR
Disinformation Analyst
anyone heard of a similar concept used for filtering amateur
repeaters?
--
Kris Kirby, KE4AHR
Disinformation Analyst
with twice as many cavities than
needed, just to keep SWR low out of band..
Perfectly matching your noise and reflected power to a dummy load,
minimizing mixing and out of band signals.
--
Kris Kirby, KE4AHR
Disinformation Analyst
presents a
short-circuit, said short-circuit won't appear at antenna port.
Uwhat?
I was thinking quarter-waves. If you have a tee, connect the antenna at
the center and a duplexer to either side using quarter-wave cables, the
effect I noted should occur, minimizing losses.
--
Kris Kirby
by with a violation for several weeks without realizing it.
--
Kris Kirby, KE4AHR
Disinformation Analyst
. And they charge
good money if your packets need to be in all places at one time --
that's X amount of bandwidth taken from ALL of thier pipes that
service your points of interest.
It's time for a repeal of that law, and a recall election to remove that
member of the legislature from office.
--
Kris Kirby
metal tools,
you could make a vertical rack and suspend a large weight from it. Then
attach a screw/gear lift motor from the diversion system, and have a
small, regulated generator from a different gear ratio making a few
watts of power.
10,000 feet of wire-rope and an old oil well
--
Kris
1 - 100 of 398 matches
Mail list logo
