Re: GE MSTR 2 special (Factory Repeater?) FREE
If there were an old Moto/GE lowband or hiband radio that would run on 6 Volts and was nearby me.....? I have a 1957 Jeep FC-170 that is still 6 volts and a vintage radio would go well in it.? :-)
Eric
WB6TIX
WHAT? Its GONE!!!
Jim W7RY
On 11/16/2022 7:59 PM, Karl Shoemaker
wrote:
Actually, Frank is there any old Moto stuff that you would like to
have?? I finally tossed my 5-pipe sensicon receiver that I used
for the repeater in 1974 !
--
-
Regards, Karl Shoemaker
To contact me, please visit SRG's web site at?
for the current email address.
--
Thanks and 73, Jim W7RY
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Re: GE MSTR 2 special (Factory Repeater?) FREE
WHAT? Its GONE!!!
Jim W7RY
On 11/16/2022 7:59 PM, Karl Shoemaker
wrote:
Actually, Frank is there any old Moto stuff that you would like to
have?? I finally tossed my 5-pipe sensicon receiver that I used
for the repeater in 1974 !
--
-
Regards, Karl Shoemaker
To contact me, please visit SRG's web site at?
for the current email address.
--
Thanks and 73, Jim W7RY
|
Voter has been spoken for
Thanks
Scott
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On Nov 16, 2022, at 7:26 PM, Scott Badders <jsbadders@...> wrote:
?>
Bought this from a trusted friend a few years ago¡ I had big ideas for this but never got around to doing anything with it
I dont think it has ever been used!
I would like $220.00 for it shipped to lower 48 paypal preferred please reply off list
I believe the manual can be had at the LDG website
73 Scott K9sln
Sent from my iPhone
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Re: Two UHF repeaters sharing the same antenna.
Joe, just as I mentioned in the previous post, it was all off of one DB420. I teed off the feed line with the six can rackmount notch duplexer. I'm trying to remember exactly how I had it tuned but I know I had the first cavity off the tee set to notch the opposite receive frequencies so there would be no suck out on the frequency. And I think the other two were set to notch the opposite transmitters. It was like 20 years ago and it's hard to remember nowadays ?
Chris WB5ITT?
What were you doing for receive?? It sounds like Keith only has one
antenna to work with.
Joe
On 11/16/2022 11:25 AM, Chris Boone wrote:
> I once had two Quantars on UHF sharing one antenna...one on 451.5 xmit
> and the other on 444.5 xmit.. took a 6 can notch only duplexer and
> some careful tuning..the 449.5 side had about 7 db loss which I
> probably could have tuned better and got less loss...WA5VDM, who owned
> a Motorola MSS, said if I could do that with two Quantars, I could do
> it with anything ?.. couldn't argue with success though.. spectrum
> analyzer showed it clean with both xmtrs keyed up.
>
> Chris WB5ITT
>
> On Wed, Nov 16, 2022, 9:11 AM Keith Ford <keithford66@...> wrote:
>
>? ? ?can I put two UHF repeaters on the same antenna by putting some
>? ? ?filtering in between them one is in business band and the other
>? ? ?one is amateur radio band. Just reaching out there in a group has
>? ? ?anybody ever done this before I've got one antenna that is damaged
>? ? ?it appears to have water in it and the SWR is high.
>
>? ? ?thanks.
>? ? ?KF4RGR? ? ? ?Keith Ford
>
>
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Any idea on the price, Matt? The current price of the RTCM is expensive for several sites, even with $100 off for the ham price.. like most hams I try to be cheap ?
Chris WB5ITT?
On Wed, Nov 16, 2022, 2:52 PM DCFluX < dcflux@...> wrote: Yes.
It's like a cross between the original voter board and the RTCM. But really I wanted a better layout to the original voter.
The board can use an internal GPS and has provisions to run the microcontroller off of it if you have a dual output unit board like the UBlox RCB-F9T.
External GPS is RS-232 and TTL capable jumper selectable.?
Added COS input and PL encode output control, but will need software modifications to implement.
On Wed, Nov 16, 2022, 12:34 RFI-EMI-GUY < rhyolite@...> wrote: DCFluX
Is this a new RTCM? Details please??
On Wed, Nov 16, 2022 at 11:37 AM, DCFluX wrote:
Radio Thick Client Module just dropped.
?
--
The Real RFI-EMI-GUY
|
Re: GE MSTR 2 special (Factory Repeater?) FREE
Actually, Frank is there any old Moto stuff that you would like to have?? I finally tossed my 5-pipe sensicon receiver that I used for the repeater in 1974 !
--
-
Regards, Karl Shoemaker
To contact me, please visit SRG's web site at?
for the current email address.
|
Re: GE MSTR 2 special (Factory Repeater?) FREE
Sure, Frank, it might be fun to play with as I have not seeing this model.? Please run over to the web site and send me your email or number. There's enough amateurs going to Spokane that could bring it. Or I can met half way...........
Remember the Motorola version for off-grid sites, using a pair of MX portable radios?? I've build several clones.
--
-
Regards, Karl Shoemaker
To contact me, please visit SRG's web site at?
for the current email address.
|
Scott, I have two of them and wrote a supplement manual post on the web site for the next owner.
--
-
Regards, Karl Shoemaker
To contact me, please visit SRG's web site at?
for the current email address.
|
Bought this from a trusted friend a few years ago¡ I had big ideas for this but never got around to doing anything with it
I dont think it has ever been used!
I would like $220.00 for it shipped to lower 48 paypal preferred please reply off list
I believe the manual can be had at the LDG website
73 Scott K9sln
|
Re: Occupied bandwidth - (was Windows 7 config)
So, now that we have progressed from occupied bandwidth to SPD and on to ACPR, we have identified the test method that will give us a true indication of how good a neighbor a system is.
Anyone who modifies their transmitter filtering for whatever purpose - extended frequency response or data / digital voice transmission - should measure the before and after ACPR.
This is a documented test method, commercial best practice and thus should also be amateur best practice.
I would be very interested to see the test results for any of these projects that list members have worked on - please post them.
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Is this going to be offered as a product or kit?
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On Wed, Nov 16, 2022 at 03:52 PM, DCFluX wrote:
Yes.
?
It's like a cross between the original voter board and the RTCM. But really I wanted a better layout to the original voter.
?
The board can use an internal GPS and has provisions to run the microcontroller off of it if you have a dual output unit board like the UBlox RCB-F9T.
?
External GPS is RS-232 and TTL capable jumper selectable.?
?
Added COS input and PL encode output control, but will need software modifications to implement.
?
On Wed, Nov 16, 2022, 12:34 RFI-EMI-GUY < rhyolite@...> wrote: DCFluX
Is this a new RTCM? Details please??
On Wed, Nov 16, 2022 at 11:37 AM, DCFluX wrote:
Radio Thick Client Module just dropped.
?
--
The Real RFI-EMI-GUY
? -- The Real RFI-EMI-GUY
|
Re: Two UHF repeaters sharing the same antenna.
What were you doing for receive?? It sounds like Keith only has one antenna to work with.
Joe
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Show quoted text
On 11/16/2022 11:25 AM, Chris Boone wrote: I once had two Quantars on UHF sharing one antenna...one on 451.5 xmit and the other on 444.5 xmit.. took a 6 can notch only duplexer and some careful tuning..the 449.5 side had about 7 db loss which I probably could have tuned better and got less loss...WA5VDM, who owned a Motorola MSS, said if I could do that with two Quantars, I could do it with anything ?.. couldn't argue with success though.. spectrum analyzer showed it clean with both xmtrs keyed up.
Chris WB5ITT
On Wed, Nov 16, 2022, 9:11 AM Keith Ford <keithford66@...> wrote:
can I put two UHF repeaters on the same antenna by putting some
filtering in between them one is in business band and the other
one is amateur radio band. Just reaching out there in a group has
anybody ever done this before I've got one antenna that is damaged
it appears to have water in it and the SWR is high.
thanks.
KF4RGR? ? ? ?Keith Ford
|
Re: Two UHF repeaters sharing the same antenna.
What you are looking for is a combiner.
We do it all the time 4 or 5 transmitters on one antenna.
To understand how it works take a look at EMR's article on it.
https://emrcorp.com/understanding-hybrid-filter-transmitter-combiners/
--
Joe Orrico?
WB6HRO / WR6AAC Repeater System
|
Yes.
It's like a cross between the original voter board and the RTCM. But really I wanted a better layout to the original voter.
The board can use an internal GPS and has provisions to run the microcontroller off of it if you have a dual output unit board like the UBlox RCB-F9T.
External GPS is RS-232 and TTL capable jumper selectable.?
Added COS input and PL encode output control, but will need software modifications to implement.
On Wed, Nov 16, 2022, 12:34 RFI-EMI-GUY < rhyolite@...> wrote: DCFluX
Is this a new RTCM? Details please??
On Wed, Nov 16, 2022 at 11:37 AM, DCFluX wrote:
Radio Thick Client Module just dropped.
?
--
The Real RFI-EMI-GUY
|
- For those integrating Motorola SpectraTac or DigiTac with non Motorola receivers or Motorola receivers lacking the C269 option. Those voters require 15 ms of silence after the status tone drops and before voice appears on the circuit. Without this "tag", the AGC will wander aimlessly. You will probably not find this documented anywhere else, but buried in the receiver C269 option will be a mute circuit and timer. I am not sure any of the aftermarket status tone encoders consider this. So unless you are prepared to cobble up this arrangement on your brand X, stay away from those voters.
? There¡¯s no reason to keep AGC when using a backhaul that you have level-control over, i.e. if you¡¯re usting most anything other than analog telco circuits.? Disabling the AGC is the first thing you should do when using a SpectraTAC with RF links or any other backhaul where you don¡¯t want, or can¡¯t have, status tone up all the time. ? The mods to use SpectraTAC voters with COR are well-documented on the repeater-builder web site and elsewhere.? GE voters are even easier. ? ??????????????????????????????????????????????????????????????????????????????????????????????? --- Jeff WN3A ?
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For those integrating Motorola SpectraTac or DigiTac with non Motorola receivers or Motorola receivers lacking the C269 option. Those voters require 15 ms of silence after the status tone drops and before voice appears on the circuit. Without this "tag", the AGC will wander aimlessly. You will probably not find this documented anywhere else, but buried in the receiver C269 option will be a mute circuit and timer. I am not sure any of the aftermarket status tone encoders consider this. So unless you are prepared to cobble up this arrangement on your brand X, stay away from those voters.
--
The Real RFI-EMI-GUY
|
DCFluX
Is this a new RTCM? Details please??
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On Wed, Nov 16, 2022 at 11:37 AM, DCFluX wrote:
Radio Thick Client Module just dropped.
? -- The Real RFI-EMI-GUY
|
Stephen, You could build your own in case you find an older one. That's what I do (farmer thinking process). If they don't make it, I will. A simple set of flop flops (IC) lead by a DTMF signal should do the trick. Try laying in bed at night thinking / dreaming up such projects. Then jump out of bed and scribble down notes so you don't forget.? Of course, that's after wife/SO attention / chores, etc.? LOL. -- - Regards, Karl Shoemaker To contact me, please visit SRG's web site at? for the current email address. Stephen Slider
The problem that I see with a lot of these new voting systems is they don't interface well with external controllers. That is to say, you can't enable or disable receivers using logic lines on your controller like you can with an LDG or Doug Hall voter. Am I missing something? I've also got a stake in this is why I ask.
?
Stephen KG4PTO
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I would rather use a fan dipole, no balun.? I use a antenna analyzer and have a light tuner anyway.
I am suspicious of all the QRP baluns for end fed.? Anyone is likely to bump the power which leads
to saturation and harmonic generation.
I know if you are really doing QRP portable, you want quick and easy, and it can be a problem in
a lot of places tying a wire to "anything green".? Sometimes they won't even let you put a peg into
the grass.
I have seen a lot of 100 watt radios that were used with compromised antennas and the people
who do it say: "oh the radio will protect itself" but they are often down to 75 to 80 watts so there
is wear and tear from regularly playing into even a marginal SWR.
|
If someone is looking at buying some of the RTCM, my want to look at doing some simulcast.
Mick - W7CAT
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----- Original Message ----- From: "Doug Kingston" To: [email protected]Sent: Wednesday, November 16, 2022 09:57:34 AM Subject: Re: [repeater-builder] Voter Systems Allstar/RTCM deals with audio delays by applying a GPS derived timestamp to every frame of audio samples so the voter can align them. All the RTCMs in the system have GPS receivers with 1PPS outputs to give near microsecond
accuracy on the timestamps.
S/N is measured at the receivers and sent with the audio frames to the
voter.
-Doug-, KD7DK
On Wed, Nov 16, 2022 at 7:51 AM wj9jrg wrote:
I would think, the biggest issue with digital over internet would be
getting your audio delays to line up. Although, I could be wrong. If
its continuous voting S/N, it will cause issues.
Someone educate me, if I am wrong. Every mode I have seen digital would not lend itself to S/N voting at the transmitter site. (At least not
continuous).
Andy
On Wed, Nov 16, 2022 at 10:15 AM steven harvey
wrote:
I do appreciate everyone's reply on this thread. It gives me a lot of
information to research and decide what I would like to do. It
seems to me going digital would be the best way for the long run as the
manufactures are doing more and more digital radios. Plus it seems logical to
me that what you put down the link is not going to care if it came out of the
receiver as analog or another digital mode.
The mesh option does make me stop and think as we have a solid
private mesh around here that I could use.
The Motorola option seems to be one that I could go with too. The
Motorola Motobridge that Ranger Radio stated that has 8 voting
slots is there a device that goes on the receiver site side? Can you give
me what a good price might be for used and is this still a production item
or has it been end of life from Motorola?
If Doug, KD7DK could PM me I would like to speak with you about
the PSRG system and its gotcha's or how it works most of the time.
Thanks!
Steven Harvey
N8RLW
Mount Vernon, Ohio
-- Untitled Document
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Chris Boone WB5ITT
Karl Shoemaker
RFI-EMI-GUY
WB6HRO