type the word blank in the freq window
The radios were most likely programmed in the repeater mode of rss not radio
mode.
This is a normal thing to occur
This is not even required unless you need to make absolutely sure that a
receive radio never transmits ( ie into a preamp or multicoupler for
Just type BLANK and a bunch of spaces to fill the
field up. I know you can do this to the TX freq if you
want a receive-only channel, but I'm not sure you can
do it to the RX freq and still have a TX freq entered.
Try it and see. The MaxTrac RSS requires an RX freq
but the TX freq can be blank.
Well...
Tried all that and the software wouldn't allow the blank entry.
Per one of the other reply posts I only tried programming through
the radio direct... not through the repeater software. Other
than talking to the rick... what does the repeater software give
or get for me?
Here's a
Do you have to use an external controller when putting 2 radios
together for a repeater? I just want a simple RX TX and have the TX
radio PG with a 2min TOT. There are some cables on the internet that
claim all you have to do is plug and play (MOTO Radiuu 16 pin). Do they
really work?
Sam
In a message dated 3/21/2007 10:34:42 A.M. Pacific Daylight Time,
[EMAIL PROTECTED] writes:
_http://cgi.ebay.http://cgi.http://cghttp://cgi.ehttp://cgi.e_
(http://cgi.ebay.com/VERTEX-VXR-7000-VHF-130-174-pogrammable-)
On 3/20/07, Sam [EMAIL PROTECTED] wrote:
Do you have to use an external controller when putting 2 radios
together for a repeater? I just want a simple RX TX and have the TX
radio PG with a 2min TOT. There are some cables on the internet that
claim all you have to do is plug and play (MOTO
Please anyone have any information on a Trielectric VHF Amp Model A-2080 HBR
?
Thanks
Dave
-
Don't pick lemons.
See all the new 2007 cars at Yahoo! Autos.
Skipp - Make sure you know any custom programmng of
the radio in question (i.e. the 16 pin connector),
then switch back and forth between repeater and radio
modes in the RSS. After you get back to the repeater
mode, only 1 option will be available for the TX and 1
for the Receiver. At least
At 3/19/2007 18:52, you wrote:
Question for the gurus: I am tuning up and donating an E.F. Johnson CR1100
repeater to the local Ham Club. They have asked me to install a talking,
chirping, beeping type repeater controller (which they have offered to
buy). I work with basic repeater, one each
Has anyone tried to do a 220 mhz conversion on the Mitrek?
On 3/21/07, [EMAIL PROTECTED] [EMAIL PROTECTED] wrote:
2. It has to talk, beep and chirp.
Just about every controller beeps. By chirp do you mean fancy sound
effects? Some of the cheaper controllers only have simple beeps won't
chirp.
Hahaha... I love the way you put that Bob. It won't
At 01:54 PM 3/20/2007, you wrote:
Didn't know there is or was a MSF group. Could someone give me some info
--There's one on Yahoogroups (well actually 2 but one only has 5
members so what's the point?)
I took delivery of a MSF5000 a couple of days ago and there is a bit
of a learning curve
If your really meant what you asked, conversion to subaudiable frequencies,
220 milliHertz, the conversion would be very difficult.
If you really meant 220 MHz, the conversion should be very similar to any
other radio. Basically you have to convert the front end by reresonating
the coils at
Hi all,
We've added a preamp to our local repeater and found that it had too
much gain. It started picking up lots of garbage. Reducing the gain
by about 6db seems to put it in a good operating place.
We also found that by putting the 6db attenuator on the input of the
preamp (right after
Steve,
It's on 2M, single Station Master antenna with about 400 feet of 7/8
feedline. The duplexer is a BP/BR followed by a band pass can, then
the pre, then the radio side. All cables are RG-400.
The radio is GE Exec II. The sensitivity without the pre is about
0.35 uV. The noise floor is
Skipp,
IIRC the GM300 will not allow a blank RX only a blank TX. Usual way to fix
the issue you described is just what you did, different freq and a wierd PL
or DPL, also set the RX to LOCAL. The RICK was a general do-it-all-for -you
controller and can be set up as Uni-directional or
Ken, thanks for the input.
So if I were to adjust the band pass can to have 3 db loss (it's at
0.5 db right now) and steeper skirts, it would raise the noise figure
about 2.5 db as well.
That seemed like a good trick at first, but still raises the noise
figure.
Obviously lower noise figure
At 06:31 PM 3/21/2007, you wrote:
Ken, thanks for the input.
So if I were to adjust the band pass can to have 3 db loss (it's at
0.5 db right now) and steeper skirts, it would raise the noise figure
about 2.5 db as well.
Yup. *Any* loss, be it in the duplexer, feedline to the antenna,
etc.
Sounds like a nice setup Dwayne. I would make sure the duplexer is tuned
properly, maybe run an isolated TEE test just to be sure everything is OK.
Next I would rotate the coupling loops to increase insertion loss and make
the skirts steeper. What Wacom taught me to do was to take a cavity,
I did mean coupling loops on the single band pass cavity and not the
duplexer. SB
On 3/21/07, Steve Bosshard (NU5D) [EMAIL PROTECTED] wrote:
Sounds like a nice setup Dwayne. I would make sure the duplexer is tuned
properly, maybe run an isolated TEE test just to be sure everything is OK.
N
--- In Repeater-Builder@yahoogroups.com, ldgelectronics
[EMAIL PROTECTED] wrote:
Hi all,
We've added a preamp to our local repeater and found that it had too
much gain. It started picking up lots of garbage.
Elaborate on the term garbage. Intermod? Users from distant
repeaters? If
At 04:19 PM 03/21/07, you wrote:
Has anyone tried to do a 220 mhz conversion on the Mitrek?
I've been thinking about it for a while...
There are two approaches - take a UHF radio and put a
modified high band front end in, and bypass a doubler, or
take a high band radio and move it up.
The mods
Darn, I meant to put that in before. I have severaldifferent units. I'd
like to use an ARR with 15 db gain (1 db NF), but we also have a couple
of older Lunar with about 15 db gain and some stock GE units with about
10 db. The Angle is on the list to try.
One of the systems we just took out
At 08:21 PM 3/21/2007, you wrote:
Darn, I meant to put that in before. I have severaldifferent units. I'd
like to use an ARR with 15 db gain (1 db NF), but we also have a couple
of older Lunar with about 15 db gain and some stock GE units with about
10 db. The Angle is on the list to try.
--I
Steve,
That's good info on tuning the BP can. I will put that info in the
file.
I'm pretty sure the duplexer is tuned properly. The four can BP/BR is
a Sinclair 202. It's got right at 1.5 db loss on each side with about
83 db of rejection on each.
There area also two Sinclair BP/BR cans. One
21 Mar 2007
We have a Comtegra remote application and desire to add DTMF decode.
This is a software download of some type.
Need to avoid adding an aftermarket decoder if possible
Ed Folta
Com/Rad Inc.
The garbage was pops, static, crackling on weak user signals. There
was also some intermod that would drop the receiver on all but the
strongest users.
The distant users were able to go farther, but the garbage noise made
it more difficult to actually use.
Dwayne Kincaid
WD8OYG
Elaborate on
Did anybody see the ad for the 'new' LMR series feedline in this months
league journal?(QST)
They are going to an aluminum braid instead of the tinned copper. Its
supposed to make it lighter and cheaper.
Any opinions on whether this will make it more suitable for duplex work?
--
Jay Urish
Hook your signal generator up to your system at the antenna port and measure
receiver sensitivity with and without the preamp. Then with the preamp in
circuit start adding attenuation between the preamp and the receiver. When
you just start to loose sensitivity stop adding attenuation. That should
Jay,
You are referring to the blurb on the lower right corner of page 69 of the
April, 2007, issue of QST.
The notion of a lite version of any coaxial cable raises a red flag in my
mind. Emotions aside, my take is that it will be LESS suitable for duplex
work, and will enjoy the same low esteem
We've added a preamp to our local repeater and found that it
had too much gain. It started picking up lots of garbage.
I would ask if there is such a thing as too much gain but there
can be. Normally I would would not expect gain to be a problem in a
well designed - constructed system.
The date for the 2007 VoIP Conference is Friday April 13 - Sunday April 15,
2007 just before the National Association of Broadcasters (NAB) conference,
also in Las Vegas. The conference highlights IRLP but all VoIP systems
owners and users are invited to present papers, or just attend.
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