According to Motorola R-56 standards a 200 foot tower requires the coax to
be grounded at the top and the bottom using a coax ground kit. If the run
from the tower to the building entrance is greater than 20 feet the coax should
be grounded at the entrance to the building as well. The
The Motorola R56 manual is available as a 3-ring binder or a CD. The 3-ring
binder is part number 68P81089E50-B and the CD is part number 9880384V83-O.
Last time I looked they were about $100.00 from parts. Your local Motorola
service shop should have a copy.
Bill - WA0CBW
I haven't received my Dayton Tickets yet.
Bill - WA0CBW
**Need a new ride? Check out the largest site for U.S. used car
listings at AOL Autos.
(http://autos.aol.com/used?NCID=aolcmp0030002851)
I finally received my Dayton tickets this weekend. Whew, I was beginning to
wonder!
Bill - WA0CBW
**Need a new ride? Check out the largest site for U.S. used car
listings at AOL Autos.
(http://autos.aol.com/used?NCID=aolcmp0030002851)
Additional accuracy can be obtained by providing a 50 ohm load for the
generator. This can be accomplished by connecting the center of the ISO T
to
the center of the unmodified T to form an H configuration. Then connect
the generator to one end of the unmodified T and a 50 ohm load to the
Check the repeater-builder site for a mod to the station control module to
make it DISABLE the transmitter and add a status LED as well.
Bill - WA0CBW
In a message dated 8/5/2008 10:23:34 A.M. Central Daylight Time,
[EMAIL PROTECTED] writes:
n9wys wrote:
Well, Joe - I got it to work!
Many Cities, Counties, etc. require the foundation to be designed for the
soil found at the site of the tower rather than for standard soil. This
would require soil samples and a foundation designed by a registered P.E.
They
may also require that the design be signed by a P.E registered
You will probably have to look for a used GR1225 repeater or perhaps a NOS
from a dealer as they were canceled by Motorola several months ago along with
the GR500 and RKR1225.
BillB
In a message dated 9/7/2008 11:47:28 P.M. Central Daylight Time,
[EMAIL PROTECTED] writes:
I have been
Anyone have a Micor 74.4 PL reed laying around?
BillB
**Pt...Have you heard the news? There's a new fashion blog,
plus the latest fall trends and hair styles at StyleList.com.
(http://www.stylelist.com/trends?ncid=aolsty000514)
Thanks Joe, I have already located a set.
BillB
In a message dated 9/10/2008 11:33:39 P.M. Central Daylight Time,
[EMAIL PROTECTED] writes:
Bill,
Do you need the sender or the sponder, or both? I think there may be a
set in our collection. Let me know what you need and I will take a
(R)epeater (I)nterface (C)ommunications (K)it. It is a Motorola box that
can be configured as either a Uni or Bi directional repeater (along with many
other variations).The setup and configuration manual can be a little
confusing but it works.
BillB
In a message dated 10/15/2008
Depending on how your card cage is mounted it is possible to pull the card
cage forward exposing the backplane. Cards can then be installed directly on
the backplane. Be sure the cards are oriented correctly when plugging them
onto the backplane. This has the advantage of easy access to
The latest models of the 259/269 have a recessed power switch to prevent it
from being turned on accidentally.
Bill - WA0CBW
In a message dated 11/23/2008 12:53:06 A.M. Central Standard Time,
[EMAIL PROTECTED] writes:
Albert,
I've had friends joke about MFJ standing for mighty
The MTR 2000 is on Motorola's roadmap to get a P-25 upgrade option in the
next couple of years.
Bill - WA0CBW
In a message dated 11/24/2008 10:26:53 A.M. Central Standard Time,
[EMAIL PROTECTED] writes:
Eric Lemmon wrote:
John,
I certainly can't dispute the fact that an MTR2000
Mike,
You are correct. I fell into the same trap as our customers identifying
anything digital as P25.
Thanks for the correction.
Bill
In a message dated 11/24/2008 12:15:17 P.M. Central Standard Time,
[EMAIL PROTECTED] writes:
Bill,
I think you mean that the MTR is to get the
Also check to be sure the FCC license reflects the locations, type of
service (FB; FB2; or MO) and power levels being proposed for the VHF frequency.
Bill - WA0CBW
In a message dated 11/29/2008 1:47:44 P.M. Central Standard Time,
[EMAIL PROTECTED] writes:
My local Community Emergency
I think the adjustment you are looking for is R19 on the Micro Fax Board.
It is located next to U6 about in the middle of the board.
Bill - WA0CBW
In a message dated 12/5/2008 7:54:52 P.M. Central Standard Time,
[EMAIL PROTECTED] writes:
I don't have documentation on the controller
I have an Astron RM-35M (35Amp) that I just tested by shorting the output
and it doesn't blow the fuse. I think I would be looking for something in the
primary circuit that might be shorting like the transformer primary or the
surge arrestor or maybe the wiring. I have seen transformers
I have used this method of converting many MSR2000 and it works great!
Especially if you want to keep it somewhat in its original condition. I have
taken the mod and added a jumper plug to the DB connector, I left the
components on the board and added a return wire from them to the
Sounds like fun. I would like to put a face with the names.
Bill - WA0CBW
In a message dated 3/17/2009 10:03:51 P.M. Central Daylight Time,
n...@no6b.com writes:
Do we want to schedule a Repeater-Builder dinner @ Dayton or some other
similar event? Sounds like now's the time.
Bob
It is a simplex operation but in the commercial world it is called store
and forward.
Bill - WA0CBW
In a message dated 3/25/2009 7:28:55 A.M. Central Daylight Time,
dmur...@verizon.net writes:
If it transmits and receives on the SAME frequency (SIMPLEX).
David
On Tue, Mar 24,
Control stations are designated as FX1 for the station class on the FCC
license.
Under the 6.1 meter rule their location may also be designated as
operating XX kilometers around a specific geographic location or county wide or
state wide etc. Antennas mounted higher than 6.1 meters require
Narrow banding only affects VHF and UHF users.
bb
In a message dated 8/6/2009 3:28:03 P.M. Central Daylight Time,
hitekgearh...@hotmail.com writes:
I have a question relating to the upcoming narrowbanding I have been
hearing about as it relates to surplus equipment.
Does the
I believe the MTR can only do one tone code at a time.
bb
In a message dated 8/13/2009 9:19:46 P.M. Central Daylight Time,
maire-rad...@verizon.net writes:
how about one repeater but different tone codes?
or the repeater is at some other location.
John
- Original Message
The meter plug plugs in from the back of the back plane. Not through the
PL board slot. Fold out the card cage and the meter sockets are available
from the backplane.
BillB
In a message dated 9/20/2009 7:08:35 A.M. Central Daylight Time,
hkl...@nc.rr.com writes:
--- In
I believe those are VHF Engineering boards, not Hamtronics. They were
available as a kit. The receiver consisted of 4 strips. A front end
(2-meter, 220, and I think 440), a 10.7 IF, a 455khz IF, and an audio
amplifier/squelch board. The transmitter/exciter was about 1 watt. I think I
Looking at the manual there is no A13 card in the D model. The frequency
reference on the D model is the A16 card.
Looking at the manual the C model has an A13 card and it is the 10 MHz
frequency reference.
Hope that helps.
Bill - WA0CBW
In a message dated 12/22/2009 10:28:32 A.M.
Use the FCC ULS search feature. From the ULS page select find license.
From that page on the right hand side select Site based search. This will
bring up a form that you can search on several items including the ASR
number. The result will be the call signs of everyone on that tower.
I use a Motorola amplified speaker and an audio combiner circuit. Since
some of the newer radios don't like to have either of their speaker leads
grounded I had to design a circuit that not only combined the audio but also
isolated the speaker leads from ground.
What I came up with was
Below are some of the technical specifications for the MURS frequencies
from the FCC web site. Notice that the bandwidths of the first three
frequencies are different than the last two. Not all radios are capable of
these
bandwidths.
Bandwidth
The frequencies available in the Multi-Use
Optimization of a simulcast system is critical to its proper operation.
Not every local Motorola shop has the equipment or experience to perform
this activity. I have installed many simulcast systems over the years and it
always boiled down to incorrect system optimization (excluding
The squelch gate card control tells the transmitter when to transmit. The
squelch control on the R1 audio module gates the receiver squelch noise.
Bill
In a message dated 7/6/2010 8:01:31 A.M. Central Daylight Time,
wa2...@taconic.net writes:
Yesterday I finally plugged this
Stan,
Ugh!
That will make it extremely difficult to figure out what is going on.
What cards are in the cage?
Typically it should have PL card and R1 Audio card (these are installed
horizontally above the normal vertical cards), Squelch gate card and Station
control card. It might
You might try and reseat all the ribbon connectors. They can become
intermittent. Does the request for the time work?
Bill - WA0CBW
In a message dated 7/23/2010 2:00:49 P.M. Central Daylight Time,
kc5...@live.com writes:
I found the audio board drawing on repeater-builder. Thanks
I
Lightning protection is not simply a surge protector but a system of surge
protectors, grounds and installation techniques that may reduce the
effects of a nearby lightning event. And as Chuck says unless you install a
lightning/grounding system the effect of a single device is
35 matches
Mail list logo
