Re: [Repeater-Builder] Re: Motorola MTR2000 Question

[MCH]

Still, I would check both of those locations - it could be at or near 
one of them!

Joe M.

George Henry wrote:
> The ULS license data shows the transmitter location as 2200 Washington St, 
> Kaufman, TX, but that doesn't match up to the lat/lon coordinates which, as 
> Chris stated, are in the middle of a field near Oak Grove, according to 
> Google Earth.
> 
> George, KA3HSW / WQGJ413
> 
> 
> - Original Message - 
> From: "Butch Kanvick" 
> To: 
> Sent: Thursday, August 13, 2009 10:50 PM
> Subject: RE: [Repeater-Builder] Re: Motorola MTR2000 Question
> 
> 
> 
> Chris
> You can go to the FCC website to find the license information and the 
> license will have the coordinates for the location of the repeaters or 
> bases, whatever you are looking for.Then punch the coordinates into Google 
> Maps and it should show the location of them.
> Butch, KE7FEL/r
> 
> 
> 
> 
> 
> 
> 
> Yahoo! Groups Links
> 
> 
> 
> 

Re: [Repeater-Builder] Re: Motorola MTR2000 Question

[MCH]

Monitor the frequency on your department's radios to see if you hear 
anyone else on it (like the users of the '451.725' repeater).

Second, you can monitor the power of the '451.725' repeater and see if 
it keys up when you key up on your radios. If it does, it is mismarked 
or the frequency was changed (very common if interference showed up on 
the original frequency).

You didn't say who the user was supposed to be of the '451.725' repeater.

If yours is not at the site (and another test you can do is unplug the 
'451.725' repeater and see if your radios 'go dead' - again indicating 
that the labelled frequency is wrong), then you will have to try to find 
someone to DF your repeater's location. It's easy to do if you have the 
right equipment.

Joe M.

Christopher Hodgdon wrote:
> I wish I had a picture of the repeater house.  The frequency listed on the 
> MTR2000 is that of the schools maint. department.  The other MTR2000, hook to 
> the other antenna, is the Schools PD.  I know those for a fact.  Now its time 
> to locate the other repeater system.  
> 
> The only odd ball thing I do know is that every once in a while, when a bus 
> is talking to another bus or dispatch, you get a high squeal walk on over 
> them, but its most likely another drive not paying attention and trying to 
> key their radio.  But I wonder if it might be the maint. since their 
> frequency is so close to ours.
> 
> --- In Repeater-Builder@yahoogroups.com, "Gary"  wrote:
>> The UHF repeater is likely mismarked or the frequency info you obtained for
>> your school's license is inaccurate. The UHF repeater is likely the school's
>> repeater. As mentioned earlier the MTR2000 is a multi-channel radio but can
>> only repeat on the channel it is left on. Recommend you find a dealer or
>> tech experienced with the MTR and who has the software necessary to
>> configure it. Have them download its codeplug. Recommend you do the same
>> with your school radios. A comparison of the data will likely answer a lot.
>> Gary
>>
>> -Original Message-
>> From: Repeater-Builder@yahoogroups.com
>> [mailto:repeater-buil...@yahoogroups.com] On Behalf Of Christopher Hodgdon
>> Sent: Thursday, August 13, 2009 4:29 PM
>> To: Repeater-Builder@yahoogroups.com
>> Subject: [Repeater-Builder] Re: Motorola MTR2000 Question
>>
>> Here's the deal, I work for a local school district, I have been kind of
>> thrust into a temp. communications specialist position while we obtain some
>> new buses and working with the company that will be adding the new radios to
>> them.
>>
>> Over the last few weeks, we have been trying to determine the location of
>> our repeater.  The place were it is listed on the FCC license paperwork does
>> not exist.  I know, I am pushing them to get it updated.  But that is
>> another story all together.
>>
>> I do have access to a "radio house" located at our high school football
>> field and it has two MTR2000 in it, plus two different antennas.  One
>> connected to one radio and one connected to the other.
>>
>> One radio is marked with the description of KISD PD, which is our police
>> department for the district and has the following frequency pair listed on
>> it:
>>
>> VHF: RX 173.325 DPL 331 and TX 158.385 DPL 331
>>
>> The other radio is marked the following:
>>
>> UHF: 451.725 / 456.725
>>
>> There is no documentation with this equipment, the person incharge of them
>> originally left the district some years ago and no one knows anything about
>> them, expect where they are located, as far as these two boxes go and what
>> frequencies that have listed.
>>
>>
>> Which brings me back to our department, we can find out repeater located
>> anywhere physcially.  Our repeater pair is listed as:
>>
>> UHF: 451.750 / 456.750
>>
>> That is according to FCC, repeater listing and other information I have been
>> able to obtain and by listening to it on a UHF amateur radio to see which
>> frequency they were on.
>>
>> That being said, it is possible that the MTR2000 that is marked with the one
>> UHF frequency, might actually have both pairs programmed into it, but only
>> one can run at a time, right?
>>
>> Is there a way to find out if there is more than one frequency is programmed
>> into the unit and if so, how might we go about that?  Another reason I am
>> asking is that we might be upgrading our system in the very near future and
>> I might be able to get my hands on these repeaters.
>>
>> Thanks in advance.
>>
>> --- In Repeater-Builder@yahoogroups.com, Brian Raker 
>> wrote:
>>> The radio can be programmed for multiple frequency pairs.  That being
>>> said, it cannot operate more than one channel / programmed pair of
>>> frequencies at one time.
>>>
>>> -Brian / KF4ZWZ
>>>
>>> On Thu, Aug 13, 2009 at 3:23 PM, Christopher
>>> Hodgdon wrote:
 This is a question I have been asked and don't have an answer for.  This
>> could be for either amateur operation or commercial operation, but it
>> relates to the repeater itself

Re: [Repeater-Builder] Re: Motorola MTR2000 Question

[George Henry]

The ULS license data shows the transmitter location as 2200 Washington St, 
Kaufman, TX, but that doesn't match up to the lat/lon coordinates which, as 
Chris stated, are in the middle of a field near Oak Grove, according to 
Google Earth.

George, KA3HSW / WQGJ413


- Original Message - 
From: "Butch Kanvick" 
To: 
Sent: Thursday, August 13, 2009 10:50 PM
Subject: RE: [Repeater-Builder] Re: Motorola MTR2000 Question



Chris
You can go to the FCC website to find the license information and the 
license will have the coordinates for the location of the repeaters or 
bases, whatever you are looking for.Then punch the coordinates into Google 
Maps and it should show the location of them.
Butch, KE7FEL/r

RE: [Repeater-Builder] Re: Motorola MTR2000 Question

[Barry]

If you are able to actively trigger the rptr then a simple df  and rx plus a 
few minutes looking will surely be a close to the location result ?

To: Repeater-Builder@yahoogroups.com
From: chris.hodg...@kaufman-ares.org
Date: Fri, 14 Aug 2009 03:09:23 +
Subject: [Repeater-Builder] Re: Motorola MTR2000 Question















 





  Problem is that they are licensed for 3 freqs. 2 UHF and 1 
VHF and I have confirmed that they are running on all three of them.  Its just 
know a matter of cat and mouse on the third repeater location.  As there is no 
one that works here anymore that knows where the radios are all located expect 
the 2 at the high school football field.



In fact the bus repeater as listed on its license is supposed to be located 
right in the middle of the intersection of a state highway and a US highway 
that runs through our town, while the GPS listed on the same license shows it 
to be about 20 miles south of that location in the middle of a cow pasture.



Will keep seeking, thanks for the help and input.



Chris KE5IGO



--- In Repeater-Builder@yahoogroups.com, "Maire-Radios"  
wrote:

>

> how about one repeater but different tone codes?

> 

> or the repeater is at some other location.

> 

> John

>   - Original Message - 

>   From: Christopher Hodgdon 

>   To: Repeater-Builder@yahoogroups.com 

>   Sent: Thursday, August 13, 2009 8:43 PM

>   Subject: [Repeater-Builder] Re: Motorola MTR2000 Question

> 

> 

> I wish I had a picture of the repeater house. The frequency listed on the 
> MTR2000 is that of the schools maint. department. The other MTR2000, hook to 
> the other antenna, is the Schools PD. I know those for a fact. Now its time 
> to locate the other repeater system. 

> 

>   The only odd ball thing I do know is that every once in a while, when a bus 
> is talking to another bus or dispatch, you get a high squeal walk on over 
> them, but its most likely another drive not paying attention and trying to 
> key their radio. But I wonder if it might be the maint. since their frequency 
> is so close to ours.

> 

>   --- In Repeater-Builder@yahoogroups.com, "Gary"  wrote:

>   >

>   > The UHF repeater is likely mismarked or the frequency info you obtained 
> for

>   > your school's license is inaccurate. The UHF repeater is likely the 
> school's

>   > repeater. As mentioned earlier the MTR2000 is a multi-channel radio but 
> can

>   > only repeat on the channel it is left on. Recommend you find a dealer or

>   > tech experienced with the MTR and who has the software necessary to

>   > configure it. Have them download its codeplug. Recommend you do the same

>   > with your school radios. A comparison of the data will likely answer a 
> lot.

>   > Gary

>   > 

>   > -Original Message-

>   > From: Repeater-Builder@yahoogroups.com

>   > [mailto:repeater-buil...@yahoogroups.com] On Behalf Of Christopher Hodgdon

>   > Sent: Thursday, August 13, 2009 4:29 PM

>   > To: Repeater-Builder@yahoogroups.com

>   > Subject: [Repeater-Builder] Re: Motorola MTR2000 Question

>   > 

>   > Here's the deal, I work for a local school district, I have been kind of

>   > thrust into a temp. communications specialist position while we obtain 
> some

>   > new buses and working with the company that will be adding the new radios 
> to

>   > them.

>   > 

>   > Over the last few weeks, we have been trying to determine the location of

>   > our repeater. The place were it is listed on the FCC license paperwork 
> does

>   > not exist. I know, I am pushing them to get it updated. But that is

>   > another story all together.

>   > 

>   > I do have access to a "radio house" located at our high school football

>   > field and it has two MTR2000 in it, plus two different antennas. One

>   > connected to one radio and one connected to the other.

>   > 

>   > One radio is marked with the description of KISD PD, which is our police

>   > department for the district and has the following frequency pair listed on

>   > it:

>   > 

>   > VHF: RX 173.325 DPL 331 and TX 158.385 DPL 331

>   > 

>   > The other radio is marked the following:

>   > 

>   > UHF: 451.725 / 456.725

>   > 

>   > There is no documentation with this equipment, the person incharge of them

>   > originally left the district some years ago and no one knows anything 
> about

>   > them, expect where they are located, as far as these two boxes go and what

>   > frequencies that have listed.

>   > 

>   > 

>   > Which brings me back to our department, we can find out repeater located

>   > anywhere physcially. Our repeater pair is listed as:

>   > 

>   > UHF: 451.750 / 456.750

>   > 

>   > That is according to FCC, repeater listing and other information I have 
> been

>   > able to obtain and by listening to it on a UHF amateur radio to see which

>   > frequency they were on.

>   > 

>   > That being said, it is possible that the MTR2000 that is

RE: [Repeater-Builder] Re: Motorola MTR2000 Question

[Butch Kanvick]

Chris
You can go to the FCC website to find the license information and the license 
will have the coordinates for the location of the repeaters or bases, whatever 
you are looking for.Then punch the coordinates into Google Maps and it should 
show the location of them.
Butch, KE7FEL/r
To: Repeater-Builder@yahoogroups.com
From: chris.hodg...@kaufman-ares.org
Date: Fri, 14 Aug 2009 03:31:51 +
Subject: [Repeater-Builder] Re: Motorola MTR2000 Question















 





  I will have to check.  We have a lot of new hams that don't 
have much experience in trans. hunts, but it might be a very good exercise for 
our ARES program.  Will look into that.



It's sad, as the people that first started installing the radio out here when 
out of business, then next group that took over has no records of the repeater 
locations, the next group only installs in the buses themselves and another 
company came in and sold them them some of the Ht's that are use by maint. and 
mechs. and have no clue about anything else that the correct freq. to place 
them on.



The saga continues.



Thanks

Chris KE5IGO



--- In Repeater-Builder@yahoogroups.com, "Gary"  wrote:

>

> You didn't mention the maintenance dept. having their own channel. If buses

> are using your channel (45x.750) then the repeater is likely at a higher

> location so it can better cover the area. If you've exhausted all available

> records, can't contact the previous tech, and can't find a dealer that knows

> where your repeater is then I'd suggest a good ol' fashioned transmitter

> hunt. Do you have any amateurs in your area that are up to the task?

> Gary

> 

> -Original Message-

> From: Repeater-Builder@yahoogroups.com

> [mailto:repeater-buil...@yahoogroups.com] On Behalf Of Christopher Hodgdon

> Sent: Thursday, August 13, 2009 5:43 PM

> To: Repeater-Builder@yahoogroups.com

> Subject: [Repeater-Builder] Re: Motorola MTR2000 Question

> 

> I wish I had a picture of the repeater house.  The frequency listed on the

> MTR2000 is that of the schools maint. department.  The other MTR2000, hook

> to the other antenna, is the Schools PD.  I know those for a fact.  Now its

> time to locate the other repeater system.  

> 

> The only odd ball thing I do know is that every once in a while, when a bus

> is talking to another bus or dispatch, you get a high squeal walk on over

> them, but its most likely another drive not paying attention and trying to

> key their radio.  But I wonder if it might be the maint. since their

> frequency is so close to ours.

>





 

  

[Repeater-Builder] Re: Motorola MTR2000 Question

[Christopher Hodgdon]

I will have to check.  We have a lot of new hams that don't have much 
experience in trans. hunts, but it might be a very good exercise for our ARES 
program.  Will look into that.

It's sad, as the people that first started installing the radio out here when 
out of business, then next group that took over has no records of the repeater 
locations, the next group only installs in the buses themselves and another 
company came in and sold them them some of the Ht's that are use by maint. and 
mechs. and have no clue about anything else that the correct freq. to place 
them on.

The saga continues.

Thanks
Chris KE5IGO

--- In Repeater-Builder@yahoogroups.com, "Gary"  wrote:
>
> You didn't mention the maintenance dept. having their own channel. If buses
> are using your channel (45x.750) then the repeater is likely at a higher
> location so it can better cover the area. If you've exhausted all available
> records, can't contact the previous tech, and can't find a dealer that knows
> where your repeater is then I'd suggest a good ol' fashioned transmitter
> hunt. Do you have any amateurs in your area that are up to the task?
> Gary
> 
> -Original Message-
> From: Repeater-Builder@yahoogroups.com
> [mailto:repeater-buil...@yahoogroups.com] On Behalf Of Christopher Hodgdon
> Sent: Thursday, August 13, 2009 5:43 PM
> To: Repeater-Builder@yahoogroups.com
> Subject: [Repeater-Builder] Re: Motorola MTR2000 Question
> 
> I wish I had a picture of the repeater house.  The frequency listed on the
> MTR2000 is that of the schools maint. department.  The other MTR2000, hook
> to the other antenna, is the Schools PD.  I know those for a fact.  Now its
> time to locate the other repeater system.  
> 
> The only odd ball thing I do know is that every once in a while, when a bus
> is talking to another bus or dispatch, you get a high squeal walk on over
> them, but its most likely another drive not paying attention and trying to
> key their radio.  But I wonder if it might be the maint. since their
> frequency is so close to ours.
>

RE: [Repeater-Builder] Re: Motorola MTR2000 Question

[Gary]

You didn't mention the maintenance dept. having their own channel. If buses
are using your channel (45x.750) then the repeater is likely at a higher
location so it can better cover the area. If you've exhausted all available
records, can't contact the previous tech, and can't find a dealer that knows
where your repeater is then I'd suggest a good ol' fashioned transmitter
hunt. Do you have any amateurs in your area that are up to the task?
Gary

-Original Message-
From: Repeater-Builder@yahoogroups.com
[mailto:repeater-buil...@yahoogroups.com] On Behalf Of Christopher Hodgdon
Sent: Thursday, August 13, 2009 5:43 PM
To: Repeater-Builder@yahoogroups.com
Subject: [Repeater-Builder] Re: Motorola MTR2000 Question

I wish I had a picture of the repeater house.  The frequency listed on the
MTR2000 is that of the schools maint. department.  The other MTR2000, hook
to the other antenna, is the Schools PD.  I know those for a fact.  Now its
time to locate the other repeater system.  

The only odd ball thing I do know is that every once in a while, when a bus
is talking to another bus or dispatch, you get a high squeal walk on over
them, but its most likely another drive not paying attention and trying to
key their radio.  But I wonder if it might be the maint. since their
frequency is so close to ours.

[Repeater-Builder] Re: Motorola MTR2000 Question

[Christopher Hodgdon]

I wish to thank you all for your help.  I have been given some good ideas and 
suggestions.  If you wish to continue on this subject for a bit, that is find, 
I currently consider it a mystery in the process of being solved.

I just have to place a cat and mouse came to located our third repeater.  Its 
bad when people in a district don't keep up with items like this.  The people 
that at one time knew anything about it, are now long gone with no way to 
contact them.

I am working with my boss to get this fixed and we will have to make sure that 
everything is updated as needed and that we keep better records of this 
information.

Again, thanks for your help.

Chris KE5IGO
Kaufman ISD
Kaufman County ARES, Inc.

--- In Repeater-Builder@yahoogroups.com, "Christopher Hodgdon" 
 wrote:
>
> This is a question I have been asked and don't have an answer for.  This 
> could be for either amateur operation or commercial operation, but it relates 
> to the repeater itself.
> 
> Can a Motorola MTR2000 setup on UHF be setup to function as a repeater on 
> more than one pair of frequencies?  I know looking at the brochure on the 
> website, it says that the NO. of Frequencies are upto 32.
> 
> Does that mean it can handle two different sets of repeater pairs at the same 
> time in the same radio?
> 
> These are commercial frequencies I am listed at commercial, but they are for 
> example purposes:
> 
> Can the following setup work with the MTR2000?
> 
> Frequency Pair 1: 451.725/456.725
> Frequency Pair 2: 451.750/456.750
> 
> Can one MTR2000 handle both of these at the same time?
> 
> Thank in advance.
>

[Repeater-Builder] Re: Motorola MTR2000 Question

[Christopher Hodgdon]

Our are located in Texas.  The following is the 3 callsigns issued to the 
district and the frequencies they are paired to, according to the FCC ULS 
system:

WPMR402 – FRN # 0001647460 – 451.750/456.750 Primary Bus/Emergency Maintenance
WPVZ977 – 158.385/173.325 PD Frequency
WPWW437 – 451.725/456.725 Maintenance Only


--- In Repeater-Builder@yahoogroups.com, "Maire-Radios"  
wrote:
>
> Just looked on the FCC data base and there are 2 school boards in Ca on the 
> 725 freg.  0 on the 750.
> 
> Need to check you paper work also.
> 
> 
>   - Original Message - 
>   From: william...@... 
>   To: Repeater-Builder@yahoogroups.com 
>   Sent: Thursday, August 13, 2009 10:36 PM
>   Subject: Re: [Repeater-Builder] Re: Motorola MTR2000 Question
> 
> 
> 
>   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...@... writes:
> 
> 
> 
> how about one repeater but different tone codes?
> 
> or the repeater is at some other location.
> 
> John
>   - Original Message - 
>   From: Christopher Hodgdon 
>   To: Repeater-Builder@yahoogroups.com 
>   Sent: Thursday, August 13, 2009 8:43 PM
>   Subject: [Repeater-Builder] Re: Motorola MTR2000 Question
> 
> 
> 
>   I wish I had a picture of the repeater house. The frequency listed on 
> the MTR2000 is that of the schools maint. department. The other MTR2000, hook 
> to the other antenna, is the Schools PD. I know those for a fact. Now its 
> time to locate the other repeater system. 
> 
>   The only odd ball thing I do know is that every once in a while, when a 
> bus is talking to another bus or dispatch, you get a high squeal walk on over 
> them, but its most likely another drive not paying attention and trying to 
> key their radio. But I wonder if it might be the maint. since their frequency 
> is so close to ours.
> 
>   --- In Repeater-Builder@yahoogroups.com, "Gary"  wrote:
>   >
>   > The UHF repeater is likely mismarked or the frequency info you 
> obtained for
>   > your school's license is inaccurate. The UHF repeater is likely the 
> school's
>   > repeater. As mentioned earlier the MTR2000 is a multi-channel radio 
> but can
>   > only repeat on the channel it is left on. Recommend you find a dealer 
> or
>   > tech experienced with the MTR and who has the software necessary to
>   > configure it. Have them download its codeplug. Recommend you do the 
> same
>   > with your school radios. A comparison of the data will likely answer 
> a lot.
>   > Gary
>   > 
>   > -Original Message-
>   > From: Repeater-Builder@yahoogroups.com
>   > [mailto:repeater-buil...@yahoogroups.com] On Behalf Of Christopher 
> Hodgdon
>   > Sent: Thursday, August 13, 2009 4:29 PM
>   > To: Repeater-Builder@yahoogroups.com
>   > Subject: [Repeater-Builder] Re: Motorola MTR2000 Question
>   > 
>   > Here's the deal, I work for a local school district, I have been kind 
> of
>   > thrust into a temp. communications specialist position while we 
> obtain some
>   > new buses and working with the company that will be adding the new 
> radios to
>   > them.
>   > 
>   > Over the last few weeks, we have been trying to determine the 
> location of
>   > our repeater. The place were it is listed on the FCC license 
> paperwork does
>   > not exist. I know, I am pushing them to get it updated. But that is
>   > another story all together.
>   > 
>   > I do have access to a "radio house" located at our high school 
> football
>   > field and it has two MTR2000 in it, plus two different antennas. One
>   > connected to one radio and one connected to the other.
>   > 
>   > One radio is marked with the description of KISD PD, which is our 
> police
>   > department for the district and has the following frequency pair 
> listed on
>   > it:
>   > 
>   > VHF: RX 173.325 DPL 331 and TX 158.385 DPL 331
>   > 
>   > The other radio is marked the following:
>   > 
>   > UHF: 451.725 / 456.725
>   > 
>   > There is no documentation with this equipment, the person incharge of 
> them
>   > originally left the district some years ago and no one knows anything 
> about
>   > them, expect where they are located, as far as these two boxes go and 
> what
>   > frequencies that have listed.
>   > 
>   > 
>   > Which brings me back to our department, we can find out repeater 
> located
>   > anywhere physcially. Our repeater pair is listed as:
>   > 
>   > UHF: 451.750 / 456.750
>   > 
>   > That is according to FCC, repeater listing and other information I 
> have been
>   > able to obtain and by listening to it on a UHF amateur radio to see 
> which
>   > frequency they were on.
>   > 
>   > That being said, it is 

[Repeater-Builder] Re: Motorola MTR2000 Question

[Christopher Hodgdon]

Problem is that they are licensed for 3 freqs. 2 UHF and 1 VHF and I have 
confirmed that they are running on all three of them.  Its just know a matter 
of cat and mouse on the third repeater location.  As there is no one that works 
here anymore that knows where the radios are all located expect the 2 at the 
high school football field.

In fact the bus repeater as listed on its license is supposed to be located 
right in the middle of the intersection of a state highway and a US highway 
that runs through our town, while the GPS listed on the same license shows it 
to be about 20 miles south of that location in the middle of a cow pasture.

Will keep seeking, thanks for the help and input.

Chris KE5IGO

--- In Repeater-Builder@yahoogroups.com, "Maire-Radios"  
wrote:
>
> how about one repeater but different tone codes?
> 
> or the repeater is at some other location.
> 
> John
>   - Original Message - 
>   From: Christopher Hodgdon 
>   To: Repeater-Builder@yahoogroups.com 
>   Sent: Thursday, August 13, 2009 8:43 PM
>   Subject: [Repeater-Builder] Re: Motorola MTR2000 Question
> 
> 
> I wish I had a picture of the repeater house. The frequency listed on the 
> MTR2000 is that of the schools maint. department. The other MTR2000, hook to 
> the other antenna, is the Schools PD. I know those for a fact. Now its time 
> to locate the other repeater system. 
> 
>   The only odd ball thing I do know is that every once in a while, when a bus 
> is talking to another bus or dispatch, you get a high squeal walk on over 
> them, but its most likely another drive not paying attention and trying to 
> key their radio. But I wonder if it might be the maint. since their frequency 
> is so close to ours.
> 
>   --- In Repeater-Builder@yahoogroups.com, "Gary"  wrote:
>   >
>   > The UHF repeater is likely mismarked or the frequency info you obtained 
> for
>   > your school's license is inaccurate. The UHF repeater is likely the 
> school's
>   > repeater. As mentioned earlier the MTR2000 is a multi-channel radio but 
> can
>   > only repeat on the channel it is left on. Recommend you find a dealer or
>   > tech experienced with the MTR and who has the software necessary to
>   > configure it. Have them download its codeplug. Recommend you do the same
>   > with your school radios. A comparison of the data will likely answer a 
> lot.
>   > Gary
>   > 
>   > -Original Message-
>   > From: Repeater-Builder@yahoogroups.com
>   > [mailto:repeater-buil...@yahoogroups.com] On Behalf Of Christopher Hodgdon
>   > Sent: Thursday, August 13, 2009 4:29 PM
>   > To: Repeater-Builder@yahoogroups.com
>   > Subject: [Repeater-Builder] Re: Motorola MTR2000 Question
>   > 
>   > Here's the deal, I work for a local school district, I have been kind of
>   > thrust into a temp. communications specialist position while we obtain 
> some
>   > new buses and working with the company that will be adding the new radios 
> to
>   > them.
>   > 
>   > Over the last few weeks, we have been trying to determine the location of
>   > our repeater. The place were it is listed on the FCC license paperwork 
> does
>   > not exist. I know, I am pushing them to get it updated. But that is
>   > another story all together.
>   > 
>   > I do have access to a "radio house" located at our high school football
>   > field and it has two MTR2000 in it, plus two different antennas. One
>   > connected to one radio and one connected to the other.
>   > 
>   > One radio is marked with the description of KISD PD, which is our police
>   > department for the district and has the following frequency pair listed on
>   > it:
>   > 
>   > VHF: RX 173.325 DPL 331 and TX 158.385 DPL 331
>   > 
>   > The other radio is marked the following:
>   > 
>   > UHF: 451.725 / 456.725
>   > 
>   > There is no documentation with this equipment, the person incharge of them
>   > originally left the district some years ago and no one knows anything 
> about
>   > them, expect where they are located, as far as these two boxes go and what
>   > frequencies that have listed.
>   > 
>   > 
>   > Which brings me back to our department, we can find out repeater located
>   > anywhere physcially. Our repeater pair is listed as:
>   > 
>   > UHF: 451.750 / 456.750
>   > 
>   > That is according to FCC, repeater listing and other information I have 
> been
>   > able to obtain and by listening to it on a UHF amateur radio to see which
>   > frequency they were on.
>   > 
>   > That being said, it is possible that the MTR2000 that is marked with the 
> one
>   > UHF frequency, might actually have both pairs programmed into it, but only
>   > one can run at a time, right?
>   > 
>   > Is there a way to find out if there is more than one frequency is 
> programmed
>   > into the unit and if so, how might we go about that? Another reason I am
>   > asking is that we might be upgrading our system in the very near future 
> and
>   > I might be able to get my hands on these 

RE: [Repeater-Builder] Re: Motorola MTR2000 Question

[Mike Mullarkey]

Install a community tone panel.

 

 

Mike Mullarkey K7PFJ

6886 Sage Ave

Firestone, Co 80504

303-954-9695 Home

303-954-9693 Home Office & Fax

303-718-8052 Cellular

From: Repeater-Builder@yahoogroups.com
[mailto:repeater-buil...@yahoogroups.com] On Behalf Of william...@aol.com
Sent: Thursday, August 13, 2009 8:37 PM
To: Repeater-Builder@yahoogroups.com
Subject: Re: [Repeater-Builder] Re: Motorola MTR2000 Question

 

  

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 - 

From: Christopher Hodgdon   

To: Repeater-Builder@yahoogroups.com 

Sent: Thursday, August 13, 2009 8:43 PM

Subject: [Repeater-Builder] Re: Motorola MTR2000 Question

 

  

I wish I had a picture of the repeater house. The frequency listed on the
MTR2000 is that of the schools maint. department. The other MTR2000, hook to
the other antenna, is the Schools PD. I know those for a fact. Now its time
to locate the other repeater system. 

The only odd ball thing I do know is that every once in a while, when a bus
is talking to another bus or dispatch, you get a high squeal walk on over
them, but its most likely another drive not paying attention and trying to
key their radio. But I wonder if it might be the maint. since their
frequency is so close to ours.

--- In Repeater-Builder@yahoogroups.com
 , "Gary"  wrote:
>
> The UHF repeater is likely mismarked or the frequency info you obtained
for
> your school's license is inaccurate. The UHF repeater is likely the
school's
> repeater. As mentioned earlier the MTR2000 is a multi-channel radio but
can
> only repeat on the channel it is left on. Recommend you find a dealer or
> tech experienced with the MTR and who has the software necessary to
> configure it. Have them download its codeplug. Recommend you do the same
> with your school radios. A comparison of the data will likely answer a
lot.
> Gary
> 
> -Original Message-
> From: Repeater-Builder@yahoogroups.com
 
> [mailto:Repeater-Builder@yahoogroups.com
 ] On Behalf Of Christopher
Hodgdon
> Sent: Thursday, August 13, 2009 4:29 PM
> To: Repeater-Builder@yahoogroups.com
 
> Subject: [Repeater-Builder] Re: Motorola MTR2000 Question
> 
> Here's the deal, I work for a local school district, I have been kind of
> thrust into a temp. communications specialist position while we obtain
some
> new buses and working with the company that will be adding the new radios
to
> them.
> 
> Over the last few weeks, we have been trying to determine the location of
> our repeater. The place were it is listed on the FCC license paperwork
does
> not exist. I know, I am pushing them to get it updated. But that is
> another story all together.
> 
> I do have access to a "radio house" located at our high school football
> field and it has two MTR2000 in it, plus two different antennas. One
> connected to one radio and one connected to the other.
> 
> One radio is marked with the description of KISD PD, which is our police
> department for the district and has the following frequency pair listed on
> it:
> 
> VHF: RX 173.325 DPL 331 and TX 158.385 DPL 331
> 
> The other radio is marked the following:
> 
> UHF: 451.725 / 456.725
> 
> There is no documentation with this equipment, the person incharge of them
> originally left the district some years ago and no one knows anything
about
> them, expect where they are located, as far as these two boxes go and what
> frequencies that have listed.
> 
> 
> Which brings me back to our department, we can find out repeater located
> anywhere physcially. Our repeater pair is listed as:
> 
> UHF: 451.750 / 456.750
> 
> That is according to FCC, repeater listing and other information I have
been
> able to obtain and by listening to it on a UHF amateur radio to see which
> frequency they were on.
> 
> That being said, it is possible that the MTR2000 that is marked with the
one
> UHF frequency, might actually have both pairs programmed into it, but only
> one can run at a time, right?
> 
> Is there a way to find out if there is more than one frequency is
programmed
> into the unit and if so, how might we go about that? Another reason I am
> asking is that we might be upgrading our system in the very near future
and
> I might be able to get my hands on these repeaters.
> 
> Thanks in advance.
> 
> --- In Repeater-Builder@yahoogroups.com
 , Brian Raker 
> wrote:
> >
> > The radio can be programmed for multiple frequency pairs. That being
> > said, it cannot operate more than one channel / programmed pair of
> > frequencie

Re: [Repeater-Builder] Re: Motorola MTR2000 Question

[Maire-Radios]

Just looked on the FCC data base and there are 2 school boards in Ca on the 725 
freg.  0 on the 750.

Need to check you paper work also.


  - Original Message - 
  From: william...@aol.com 
  To: Repeater-Builder@yahoogroups.com 
  Sent: Thursday, August 13, 2009 10:36 PM
  Subject: Re: [Repeater-Builder] Re: Motorola MTR2000 Question



  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 - 
  From: Christopher Hodgdon 
  To: Repeater-Builder@yahoogroups.com 
  Sent: Thursday, August 13, 2009 8:43 PM
  Subject: [Repeater-Builder] Re: Motorola MTR2000 Question



  I wish I had a picture of the repeater house. The frequency listed on the 
MTR2000 is that of the schools maint. department. The other MTR2000, hook to 
the other antenna, is the Schools PD. I know those for a fact. Now its time to 
locate the other repeater system. 

  The only odd ball thing I do know is that every once in a while, when a 
bus is talking to another bus or dispatch, you get a high squeal walk on over 
them, but its most likely another drive not paying attention and trying to key 
their radio. But I wonder if it might be the maint. since their frequency is so 
close to ours.

  --- In Repeater-Builder@yahoogroups.com, "Gary"  wrote:
  >
  > The UHF repeater is likely mismarked or the frequency info you obtained 
for
  > your school's license is inaccurate. The UHF repeater is likely the 
school's
  > repeater. As mentioned earlier the MTR2000 is a multi-channel radio but 
can
  > only repeat on the channel it is left on. Recommend you find a dealer or
  > tech experienced with the MTR and who has the software necessary to
  > configure it. Have them download its codeplug. Recommend you do the same
  > with your school radios. A comparison of the data will likely answer a 
lot.
  > Gary
  > 
  > -Original Message-
  > From: Repeater-Builder@yahoogroups.com
  > [mailto:repeater-buil...@yahoogroups.com] On Behalf Of Christopher 
Hodgdon
  > Sent: Thursday, August 13, 2009 4:29 PM
  > To: Repeater-Builder@yahoogroups.com
  > Subject: [Repeater-Builder] Re: Motorola MTR2000 Question
  > 
  > Here's the deal, I work for a local school district, I have been kind of
  > thrust into a temp. communications specialist position while we obtain 
some
  > new buses and working with the company that will be adding the new 
radios to
  > them.
  > 
  > Over the last few weeks, we have been trying to determine the location 
of
  > our repeater. The place were it is listed on the FCC license paperwork 
does
  > not exist. I know, I am pushing them to get it updated. But that is
  > another story all together.
  > 
  > I do have access to a "radio house" located at our high school football
  > field and it has two MTR2000 in it, plus two different antennas. One
  > connected to one radio and one connected to the other.
  > 
  > One radio is marked with the description of KISD PD, which is our police
  > department for the district and has the following frequency pair listed 
on
  > it:
  > 
  > VHF: RX 173.325 DPL 331 and TX 158.385 DPL 331
  > 
  > The other radio is marked the following:
  > 
  > UHF: 451.725 / 456.725
  > 
  > There is no documentation with this equipment, the person incharge of 
them
  > originally left the district some years ago and no one knows anything 
about
  > them, expect where they are located, as far as these two boxes go and 
what
  > frequencies that have listed.
  > 
  > 
  > Which brings me back to our department, we can find out repeater located
  > anywhere physcially. Our repeater pair is listed as:
  > 
  > UHF: 451.750 / 456.750
  > 
  > That is according to FCC, repeater listing and other information I have 
been
  > able to obtain and by listening to it on a UHF amateur radio to see 
which
  > frequency they were on.
  > 
  > That being said, it is possible that the MTR2000 that is marked with 
the one
  > UHF frequency, might actually have both pairs programmed into it, but 
only
  > one can run at a time, right?
  > 
  > Is there a way to find out if there is more than one frequency is 
programmed
  > into the unit and if so, how might we go about that? Another reason I am
  > asking is that we might be upgrading our system in the very near future 
and
  > I might be able to get my hands on these repeaters.
  > 
  > Thanks in advance.
  > 
  > --- In Repeater-Builder@yahoogroups.com, Brian Raker 
  > wrote:
  > >
 

Re: [Repeater-Builder] Re: Motorola MTR2000 Question

[Maire-Radios]

as one time I had a VHF one that did both 91.x  and 167.

could only use one at a time but both would bring up the repeater when not in 
use.

John

  - Original Message - 
  From: william...@aol.com 
  To: Repeater-Builder@yahoogroups.com 
  Sent: Thursday, August 13, 2009 10:36 PM
  Subject: Re: [Repeater-Builder] Re: Motorola MTR2000 Question



  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 - 
  From: Christopher Hodgdon 
  To: Repeater-Builder@yahoogroups.com 
  Sent: Thursday, August 13, 2009 8:43 PM
  Subject: [Repeater-Builder] Re: Motorola MTR2000 Question



  I wish I had a picture of the repeater house. The frequency listed on the 
MTR2000 is that of the schools maint. department. The other MTR2000, hook to 
the other antenna, is the Schools PD. I know those for a fact. Now its time to 
locate the other repeater system. 

  The only odd ball thing I do know is that every once in a while, when a 
bus is talking to another bus or dispatch, you get a high squeal walk on over 
them, but its most likely another drive not paying attention and trying to key 
their radio. But I wonder if it might be the maint. since their frequency is so 
close to ours.

  --- In Repeater-Builder@yahoogroups.com, "Gary"  wrote:
  >
  > The UHF repeater is likely mismarked or the frequency info you obtained 
for
  > your school's license is inaccurate. The UHF repeater is likely the 
school's
  > repeater. As mentioned earlier the MTR2000 is a multi-channel radio but 
can
  > only repeat on the channel it is left on. Recommend you find a dealer or
  > tech experienced with the MTR and who has the software necessary to
  > configure it. Have them download its codeplug. Recommend you do the same
  > with your school radios. A comparison of the data will likely answer a 
lot.
  > Gary
  > 
  > -Original Message-
  > From: Repeater-Builder@yahoogroups.com
  > [mailto:repeater-buil...@yahoogroups.com] On Behalf Of Christopher 
Hodgdon
  > Sent: Thursday, August 13, 2009 4:29 PM
  > To: Repeater-Builder@yahoogroups.com
  > Subject: [Repeater-Builder] Re: Motorola MTR2000 Question
  > 
  > Here's the deal, I work for a local school district, I have been kind of
  > thrust into a temp. communications specialist position while we obtain 
some
  > new buses and working with the company that will be adding the new 
radios to
  > them.
  > 
  > Over the last few weeks, we have been trying to determine the location 
of
  > our repeater. The place were it is listed on the FCC license paperwork 
does
  > not exist. I know, I am pushing them to get it updated. But that is
  > another story all together.
  > 
  > I do have access to a "radio house" located at our high school football
  > field and it has two MTR2000 in it, plus two different antennas. One
  > connected to one radio and one connected to the other.
  > 
  > One radio is marked with the description of KISD PD, which is our police
  > department for the district and has the following frequency pair listed 
on
  > it:
  > 
  > VHF: RX 173.325 DPL 331 and TX 158.385 DPL 331
  > 
  > The other radio is marked the following:
  > 
  > UHF: 451.725 / 456.725
  > 
  > There is no documentation with this equipment, the person incharge of 
them
  > originally left the district some years ago and no one knows anything 
about
  > them, expect where they are located, as far as these two boxes go and 
what
  > frequencies that have listed.
  > 
  > 
  > Which brings me back to our department, we can find out repeater located
  > anywhere physcially. Our repeater pair is listed as:
  > 
  > UHF: 451.750 / 456.750
  > 
  > That is according to FCC, repeater listing and other information I have 
been
  > able to obtain and by listening to it on a UHF amateur radio to see 
which
  > frequency they were on.
  > 
  > That being said, it is possible that the MTR2000 that is marked with 
the one
  > UHF frequency, might actually have both pairs programmed into it, but 
only
  > one can run at a time, right?
  > 
  > Is there a way to find out if there is more than one frequency is 
programmed
  > into the unit and if so, how might we go about that? Another reason I am
  > asking is that we might be upgrading our system in the very near future 
and
  > I might be able to get my hands on these repeaters.
  > 
  > Thanks in advance.
  > 
  > --- In Repeater-Builder@yahoogroups.com, Brian Raker 
  > wrote:
  

Re: [Repeater-Builder] Re: Motorola MTR2000 Question

[william474]

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 - 
From:  _Christopher Hodgdon_ (mailto:chris.hodg...@kaufman-ares.org)  
To: _repeater-buil...@yahoogroups.com_ 
(mailto:Repeater-Builder@yahoogroups.com)   
Sent: Thursday, August 13, 2009 8:43  PM
Subject: [Repeater-Builder] Re:  Motorola MTR2000 Question



I wish I had a picture of the repeater house. The frequency listed on the  
MTR2000 is that of the schools maint. department. The other MTR2000, hook to 
 the other antenna, is the Schools PD. I know those for a fact. Now its 
time  to locate the other repeater system. 

The only odd ball thing I do  know is that every once in a while, when a 
bus is talking to another bus or  dispatch, you get a high squeal walk on over 
them, but its most likely  another drive not paying attention and trying to 
key their radio. But I  wonder if it might be the maint. since their 
frequency is so close to  ours.

--- In _repeater-buil...@repeater-buirep_ 
(mailto:Repeater-Builder@yahoogroups.com) ,  "Gary"  wrote:
>
> The UHF repeater is likely  mismarked or the frequency info you obtained 
for
> your school's  license is inaccurate. The UHF repeater is likely the 
school's
>  repeater. As mentioned earlier the MTR2000 is a multi-channel radio but  
can
> only repeat on the channel it is left on. Recommend you find a  dealer or
> tech experienced with the MTR and who has the software  necessary to
> configure it. Have them download its codeplug.  Recommend you do the same
> with your school radios. A comparison of  the data will likely answer a 
lot.
> Gary
> 
>  -Original Message-
> From: _repeater-buil...@repeater-buirep_ 
(mailto:Repeater-Builder@yahoogroups.com) 
>  [mailto:_repeater-buil...@repeater-buirep_ 
(mailto:Repeater-Builder@yahoogroups.com) ]  On Behalf Of Christopher Hodgdon
> Sent: Thursday, August 13, 2009  4:29 PM
> To: _repeater-buil...@repeater-buirep_ 
(mailto:Repeater-Builder@yahoogroups.com) 
>  Subject: [Repeater-Builder] Re: Motorola MTR2000 Question
> 
>  Here's the deal, I work for a local school district, I have been kind  of
> thrust into a temp. communications specialist position while we  obtain 
some
> new buses and working with the company that will be  adding the new 
radios to
> them.
> 
> Over the last few  weeks, we have been trying to determine the location of
> our  repeater. The place were it is listed on the FCC license paperwork  
does
> not exist. I know, I am pushing them to get it updated. But  that is
> another story all together.
> 
> I do have  access to a "radio house" located at our high school football
> field  and it has two MTR2000 in it, plus two different antennas. One
>  connected to one radio and one connected to the other.
> 
> One  radio is marked with the description of KISD PD, which is our police
>  department for the district and has the following frequency pair listed  
on
> it:
> 
> VHF: RX 173.325 DPL 331 and TX 158.385 DPL  331
> 
> The other radio is marked the following:
>  
> UHF: 451.725 / 456.725
> 
> There is no documentation  with this equipment, the person incharge of 
them
> originally left the  district some years ago and no one knows anything 
about
> them, expect  where they are located, as far as these two boxes go and 
what
>  frequencies that have listed.
> 
> 
> Which brings me back  to our department, we can find out repeater located
> anywhere  physcially. Our repeater pair is listed as:
> 
> UHF: 451.750 /  456.750
> 
> That is according to FCC, repeater listing and  other information I have 
been
> able to obtain and by listening to it  on a UHF amateur radio to see which
> frequency they were on.
>  
> That being said, it is possible that the MTR2000 that is marked  with the 
one
> UHF frequency, might actually have both pairs  programmed into it, but 
only
> one can run at a time, right?
>  
> Is there a way to find out if there is more than one frequency is  
programmed
> into the unit and if so, how might we go about that?  Another reason I am
> asking is that we might be upgrading our system  in the very near future 
and
> I might be able to get my hands on these  repeaters.
> 
> Thanks in advance.
> 
> --- In _repeater-buil...@repeater-buirep_ 
(mailto:Repeater-Builder@yahoogroups.com) ,  Brian Raker 
> wrote:
> >
>  > The radio can be programmed for multiple frequency pairs. That  being
> > said, it cannot operate more than one channel /  programmed pair of
> > frequencies at one time.
> >  
> > -Brian / KF4ZWZ
> > 
> > On Thu, Aug 13,  2009 at 3:23 PM, Christopher
> > Hodgdon  wrote:
> > > This is a question I have been asked and don't have  an answer for.  
This
> could be for either amateur operation or  commercial operation, but it
> relates to the repeater itself.
> 

Re: [Repeater-Builder] Re: Motorola MTR2000 Question

[Maire-Radios]

how about one repeater but different tone codes?

or the repeater is at some other location.

John
  - Original Message - 
  From: Christopher Hodgdon 
  To: Repeater-Builder@yahoogroups.com 
  Sent: Thursday, August 13, 2009 8:43 PM
  Subject: [Repeater-Builder] Re: Motorola MTR2000 Question


I wish I had a picture of the repeater house. The frequency listed on the 
MTR2000 is that of the schools maint. department. The other MTR2000, hook to 
the other antenna, is the Schools PD. I know those for a fact. Now its time to 
locate the other repeater system. 

  The only odd ball thing I do know is that every once in a while, when a bus 
is talking to another bus or dispatch, you get a high squeal walk on over them, 
but its most likely another drive not paying attention and trying to key their 
radio. But I wonder if it might be the maint. since their frequency is so close 
to ours.

  --- In Repeater-Builder@yahoogroups.com, "Gary"  wrote:
  >
  > The UHF repeater is likely mismarked or the frequency info you obtained for
  > your school's license is inaccurate. The UHF repeater is likely the school's
  > repeater. As mentioned earlier the MTR2000 is a multi-channel radio but can
  > only repeat on the channel it is left on. Recommend you find a dealer or
  > tech experienced with the MTR and who has the software necessary to
  > configure it. Have them download its codeplug. Recommend you do the same
  > with your school radios. A comparison of the data will likely answer a lot.
  > Gary
  > 
  > -Original Message-
  > From: Repeater-Builder@yahoogroups.com
  > [mailto:repeater-buil...@yahoogroups.com] On Behalf Of Christopher Hodgdon
  > Sent: Thursday, August 13, 2009 4:29 PM
  > To: Repeater-Builder@yahoogroups.com
  > Subject: [Repeater-Builder] Re: Motorola MTR2000 Question
  > 
  > Here's the deal, I work for a local school district, I have been kind of
  > thrust into a temp. communications specialist position while we obtain some
  > new buses and working with the company that will be adding the new radios to
  > them.
  > 
  > Over the last few weeks, we have been trying to determine the location of
  > our repeater. The place were it is listed on the FCC license paperwork does
  > not exist. I know, I am pushing them to get it updated. But that is
  > another story all together.
  > 
  > I do have access to a "radio house" located at our high school football
  > field and it has two MTR2000 in it, plus two different antennas. One
  > connected to one radio and one connected to the other.
  > 
  > One radio is marked with the description of KISD PD, which is our police
  > department for the district and has the following frequency pair listed on
  > it:
  > 
  > VHF: RX 173.325 DPL 331 and TX 158.385 DPL 331
  > 
  > The other radio is marked the following:
  > 
  > UHF: 451.725 / 456.725
  > 
  > There is no documentation with this equipment, the person incharge of them
  > originally left the district some years ago and no one knows anything about
  > them, expect where they are located, as far as these two boxes go and what
  > frequencies that have listed.
  > 
  > 
  > Which brings me back to our department, we can find out repeater located
  > anywhere physcially. Our repeater pair is listed as:
  > 
  > UHF: 451.750 / 456.750
  > 
  > That is according to FCC, repeater listing and other information I have been
  > able to obtain and by listening to it on a UHF amateur radio to see which
  > frequency they were on.
  > 
  > That being said, it is possible that the MTR2000 that is marked with the one
  > UHF frequency, might actually have both pairs programmed into it, but only
  > one can run at a time, right?
  > 
  > Is there a way to find out if there is more than one frequency is programmed
  > into the unit and if so, how might we go about that? Another reason I am
  > asking is that we might be upgrading our system in the very near future and
  > I might be able to get my hands on these repeaters.
  > 
  > Thanks in advance.
  > 
  > --- In Repeater-Builder@yahoogroups.com, Brian Raker 
  > wrote:
  > >
  > > The radio can be programmed for multiple frequency pairs. That being
  > > said, it cannot operate more than one channel / programmed pair of
  > > frequencies at one time.
  > > 
  > > -Brian / KF4ZWZ
  > > 
  > > On Thu, Aug 13, 2009 at 3:23 PM, Christopher
  > > Hodgdon wrote:
  > > > This is a question I have been asked and don't have an answer for.  This
  > could be for either amateur operation or commercial operation, but it
  > relates to the repeater itself.
  > > >
  > > > Can a Motorola MTR2000 setup on UHF be setup to function as a repeater
  > on more than one pair of frequencies?  I know looking at the brochure on the
  > website, it says that the NO. of Frequencies are upto 32.
  > > >
  > > > Does that mean it can handle two different sets of repeater pairs at the
  > same time in the same radio?
  > > >
  > > > These are commercial frequencie

Re: [Repeater-Builder] Re: An advocate for a little audio compression

[no6b]

At 8/13/2009 08:11, you wrote:

> > Any ol' audio detector/filter/comparitor would do.  Nothing
> > fancy like the "SmartVox" we use for Shuttle audio (which
> > doesn't work on amplitude, but rather changes in audio
> > frequency), just something that says "I saw peaks over 4
> > kHz" or "average deviation over the past 5 seconds was at
> > least 1.5 kHz".
> > Bob NO6B
>
>What action does the above circuit take?

It would be ANDed with the COS, so that anyone too "soft-spoken" would drop 
out of the repeater.

We had one repeater around here with that feature.  AFAIK it worked quite 
well.  It was removed when the entire repeater was replaced; I suspect the 
trustee didn't want to bother grafting the old circuit into the new 
repeater.  Besides, by then the user base was likely "well trained".

Bob NO6B

[Repeater-Builder] Re: Motorola MTR2000 Question

[Christopher Hodgdon]

Sorry, the link should have been:

http://www.repeater-builder.com/motorola/mtr2k/cellwave-pd5042-1-vhf-duplexer.pdf

s.hodg...@...> wrote:
>
> Each radio is connected to its own antenna, and each one has a duplexer 
> module similar to these 
> http://www.repeater-builder.com/motorola/mtr2k/cellwave-pd5042-1-vhf-duplexer.pdf
> 
> One is for the vhf radio and one for the uhf.
> 
>   --- In Repeater-Builder@yahoogroups.com, Brian Raker  wrote:
> >
> > On Thu, Aug 13, 2009 at 4:29 PM, Christopher
> > Hodgdon wrote:
> > 
> > 
> > > I do have access to a "radio house" located at our high school football 
> > > field and it has two MTR2000 in it, plus two different antennas.  One 
> > > connected to one radio and one connected to the other.
> > >
> > 
> > Two antennas, two radios.  Should be a duplexer for each radio, and
> > duplexers are not easily field tuned.  For all intents, these radios
> > are both hardset to the freqs they are programmed to, and apparently
> > currently operating on.
> > 
> > 
> > >
> > > That being said, it is possible that the MTR2000 that is marked with the 
> > > one UHF frequency, might actually have both pairs programmed into it, but 
> > > only one can run at a time, right?
> > >
> > 
> > Possible.  But doubtful as listed above.
> > 
> > > Is there a way to find out if there is more than one frequency is 
> > > programmed into the unit and if so, how might we go about that?  Another 
> > > reason I am asking is that we might be upgrading our system in the very 
> > > near future and I might be able to get my hands on these repeaters.
> > >
> > 
> > Yep.  RVN4148, Motorola's RSS/CPP for the MTR2000.  Also, the
> > interface cable is 30-82056X02, RJ45 - DB9 serial interface.
> > 
> > > Thanks in advance.
> > 
> > No problem!
> > 
> > >
> > > --- In Repeater-Builder@yahoogroups.com, Brian Raker  wrote:
> > >>
> > >> The radio can be programmed for multiple frequency pairs.  That being
> > >> said, it cannot operate more than one channel / programmed pair of
> > >> frequencies at one time.
> > >>
> > >> -Brian / KF4ZWZ
> > >>
> >
>

[Repeater-Builder] Re: Motorola MTR2000 Question

[Christopher Hodgdon]

Each radio is connected to its own antenna, and each one has a duplexer module 
similar to these 
http://www.repeater-builder.com/motorola/mtr2k/cellwave-pd5042-1-vhf-duplexer.pdf

One is for the vhf radio and one for the uhf.

  --- In Repeater-Builder@yahoogroups.com, Brian Raker  wrote:
>
> On Thu, Aug 13, 2009 at 4:29 PM, Christopher
> Hodgdon wrote:
> 
> 
> > I do have access to a "radio house" located at our high school football 
> > field and it has two MTR2000 in it, plus two different antennas.  One 
> > connected to one radio and one connected to the other.
> >
> 
> Two antennas, two radios.  Should be a duplexer for each radio, and
> duplexers are not easily field tuned.  For all intents, these radios
> are both hardset to the freqs they are programmed to, and apparently
> currently operating on.
> 
> 
> >
> > That being said, it is possible that the MTR2000 that is marked with the 
> > one UHF frequency, might actually have both pairs programmed into it, but 
> > only one can run at a time, right?
> >
> 
> Possible.  But doubtful as listed above.
> 
> > Is there a way to find out if there is more than one frequency is 
> > programmed into the unit and if so, how might we go about that?  Another 
> > reason I am asking is that we might be upgrading our system in the very 
> > near future and I might be able to get my hands on these repeaters.
> >
> 
> Yep.  RVN4148, Motorola's RSS/CPP for the MTR2000.  Also, the
> interface cable is 30-82056X02, RJ45 - DB9 serial interface.
> 
> > Thanks in advance.
> 
> No problem!
> 
> >
> > --- In Repeater-Builder@yahoogroups.com, Brian Raker  wrote:
> >>
> >> The radio can be programmed for multiple frequency pairs.  That being
> >> said, it cannot operate more than one channel / programmed pair of
> >> frequencies at one time.
> >>
> >> -Brian / KF4ZWZ
> >>
>

[Repeater-Builder] Re: Motorola MTR2000 Question

[Christopher Hodgdon]

I wish I had a picture of the repeater house.  The frequency listed on the 
MTR2000 is that of the schools maint. department.  The other MTR2000, hook to 
the other antenna, is the Schools PD.  I know those for a fact.  Now its time 
to locate the other repeater system.  

The only odd ball thing I do know is that every once in a while, when a bus is 
talking to another bus or dispatch, you get a high squeal walk on over them, 
but its most likely another drive not paying attention and trying to key their 
radio.  But I wonder if it might be the maint. since their frequency is so 
close to ours.

--- In Repeater-Builder@yahoogroups.com, "Gary"  wrote:
>
> The UHF repeater is likely mismarked or the frequency info you obtained for
> your school's license is inaccurate. The UHF repeater is likely the school's
> repeater. As mentioned earlier the MTR2000 is a multi-channel radio but can
> only repeat on the channel it is left on. Recommend you find a dealer or
> tech experienced with the MTR and who has the software necessary to
> configure it. Have them download its codeplug. Recommend you do the same
> with your school radios. A comparison of the data will likely answer a lot.
> Gary
> 
> -Original Message-
> From: Repeater-Builder@yahoogroups.com
> [mailto:repeater-buil...@yahoogroups.com] On Behalf Of Christopher Hodgdon
> Sent: Thursday, August 13, 2009 4:29 PM
> To: Repeater-Builder@yahoogroups.com
> Subject: [Repeater-Builder] Re: Motorola MTR2000 Question
> 
> Here's the deal, I work for a local school district, I have been kind of
> thrust into a temp. communications specialist position while we obtain some
> new buses and working with the company that will be adding the new radios to
> them.
> 
> Over the last few weeks, we have been trying to determine the location of
> our repeater.  The place were it is listed on the FCC license paperwork does
> not exist.  I know, I am pushing them to get it updated.  But that is
> another story all together.
> 
> I do have access to a "radio house" located at our high school football
> field and it has two MTR2000 in it, plus two different antennas.  One
> connected to one radio and one connected to the other.
> 
> One radio is marked with the description of KISD PD, which is our police
> department for the district and has the following frequency pair listed on
> it:
> 
> VHF: RX 173.325 DPL 331 and TX 158.385 DPL 331
> 
> The other radio is marked the following:
> 
> UHF: 451.725 / 456.725
> 
> There is no documentation with this equipment, the person incharge of them
> originally left the district some years ago and no one knows anything about
> them, expect where they are located, as far as these two boxes go and what
> frequencies that have listed.
> 
> 
> Which brings me back to our department, we can find out repeater located
> anywhere physcially.  Our repeater pair is listed as:
> 
> UHF: 451.750 / 456.750
> 
> That is according to FCC, repeater listing and other information I have been
> able to obtain and by listening to it on a UHF amateur radio to see which
> frequency they were on.
> 
> That being said, it is possible that the MTR2000 that is marked with the one
> UHF frequency, might actually have both pairs programmed into it, but only
> one can run at a time, right?
> 
> Is there a way to find out if there is more than one frequency is programmed
> into the unit and if so, how might we go about that?  Another reason I am
> asking is that we might be upgrading our system in the very near future and
> I might be able to get my hands on these repeaters.
> 
> Thanks in advance.
> 
> --- In Repeater-Builder@yahoogroups.com, Brian Raker 
> wrote:
> >
> > The radio can be programmed for multiple frequency pairs.  That being
> > said, it cannot operate more than one channel / programmed pair of
> > frequencies at one time.
> > 
> > -Brian / KF4ZWZ
> > 
> > On Thu, Aug 13, 2009 at 3:23 PM, Christopher
> > Hodgdon wrote:
> > > This is a question I have been asked and don't have an answer for.  This
> could be for either amateur operation or commercial operation, but it
> relates to the repeater itself.
> > >
> > > Can a Motorola MTR2000 setup on UHF be setup to function as a repeater
> on more than one pair of frequencies?  I know looking at the brochure on the
> website, it says that the NO. of Frequencies are upto 32.
> > >
> > > Does that mean it can handle two different sets of repeater pairs at the
> same time in the same radio?
> > >
> > > These are commercial frequencies I am listed at commercial, but they are
> for example purposes:
> > >
> > > Can the following setup work with the MTR2000?
> > >
> > > Frequency Pair 1: 451.725/456.725
> > > Frequency Pair 2: 451.750/456.750
> > >
> > > Can one MTR2000 handle both of these at the same time?
> > >
> > > Thank in advance.
> > >
> > >
> > >
> > > 
> > >
> > >
> > >
> > > Yahoo! Groups Links
> > >
> > >
> > >
> > >
> >
> 
> 
> 
> 
> 

Re: [Repeater-Builder] Re: Motorola MTR2000 Question

[Maire-Radios]

I have seen it in the past that a repeater would come in from Motorola on the 
wrong freg because the rep ordered it wrong   then the service made the 
corrections and that could be your current freg.  

John


  - Original Message - 
  From: Christopher Hodgdon 
  To: Repeater-Builder@yahoogroups.com 
  Sent: Thursday, August 13, 2009 7:29 PM
  Subject: [Repeater-Builder] Re: Motorola MTR2000 Question


Here's the deal, I work for a local school district, I have been kind of 
thrust into a temp. communications specialist position while we obtain some new 
buses and working with the company that will be adding the new radios to them.

  Over the last few weeks, we have been trying to determine the location of our 
repeater. The place were it is listed on the FCC license paperwork does not 
exist. I know, I am pushing them to get it updated. But that is another story 
all together.

  I do have access to a "radio house" located at our high school football field 
and it has two MTR2000 in it, plus two different antennas. One connected to one 
radio and one connected to the other.

  One radio is marked with the description of KISD PD, which is our police 
department for the district and has the following frequency pair listed on it:

  VHF: RX 173.325 DPL 331 and TX 158.385 DPL 331

  The other radio is marked the following:

  UHF: 451.725 / 456.725

  There is no documentation with this equipment, the person incharge of them 
originally left the district some years ago and no one knows anything about 
them, expect where they are located, as far as these two boxes go and what 
frequencies that have listed.

  Which brings me back to our department, we can find out repeater located 
anywhere physcially. Our repeater pair is listed as:

  UHF: 451.750 / 456.750

  That is according to FCC, repeater listing and other information I have been 
able to obtain and by listening to it on a UHF amateur radio to see which 
frequency they were on.

  That being said, it is possible that the MTR2000 that is marked with the one 
UHF frequency, might actually have both pairs programmed into it, but only one 
can run at a time, right?

  Is there a way to find out if there is more than one frequency is programmed 
into the unit and if so, how might we go about that? Another reason I am asking 
is that we might be upgrading our system in the very near future and I might be 
able to get my hands on these repeaters.

  Thanks in advance.

  --- In Repeater-Builder@yahoogroups.com, Brian Raker  wrote:
  >
  > The radio can be programmed for multiple frequency pairs. That being
  > said, it cannot operate more than one channel / programmed pair of
  > frequencies at one time.
  > 
  > -Brian / KF4ZWZ
  > 
  > On Thu, Aug 13, 2009 at 3:23 PM, Christopher
  > Hodgdon wrote:
  > > This is a question I have been asked and don't have an answer for.  This 
could be for either amateur operation or commercial operation, but it relates 
to the repeater itself.
  > >
  > > Can a Motorola MTR2000 setup on UHF be setup to function as a repeater on 
more than one pair of frequencies?  I know looking at the brochure on the 
website, it says that the NO. of Frequencies are upto 32.
  > >
  > > Does that mean it can handle two different sets of repeater pairs at the 
same time in the same radio?
  > >
  > > These are commercial frequencies I am listed at commercial, but they are 
for example purposes:
  > >
  > > Can the following setup work with the MTR2000?
  > >
  > > Frequency Pair 1: 451.725/456.725
  > > Frequency Pair 2: 451.750/456.750
  > >
  > > Can one MTR2000 handle both of these at the same time?
  > >
  > > Thank in advance.
  > >
  > >
  > >
  > > 
  > >
  > >
  > >
  > > Yahoo! Groups Links
  > >
  > >
  > >
  > >
  >



  

RE: [Repeater-Builder] Re: Motorola MTR2000 Question

[Gary]

The UHF repeater is likely mismarked or the frequency info you obtained for
your school's license is inaccurate. The UHF repeater is likely the school's
repeater. As mentioned earlier the MTR2000 is a multi-channel radio but can
only repeat on the channel it is left on. Recommend you find a dealer or
tech experienced with the MTR and who has the software necessary to
configure it. Have them download its codeplug. Recommend you do the same
with your school radios. A comparison of the data will likely answer a lot.
Gary

-Original Message-
From: Repeater-Builder@yahoogroups.com
[mailto:repeater-buil...@yahoogroups.com] On Behalf Of Christopher Hodgdon
Sent: Thursday, August 13, 2009 4:29 PM
To: Repeater-Builder@yahoogroups.com
Subject: [Repeater-Builder] Re: Motorola MTR2000 Question

Here's the deal, I work for a local school district, I have been kind of
thrust into a temp. communications specialist position while we obtain some
new buses and working with the company that will be adding the new radios to
them.

Over the last few weeks, we have been trying to determine the location of
our repeater.  The place were it is listed on the FCC license paperwork does
not exist.  I know, I am pushing them to get it updated.  But that is
another story all together.

I do have access to a "radio house" located at our high school football
field and it has two MTR2000 in it, plus two different antennas.  One
connected to one radio and one connected to the other.

One radio is marked with the description of KISD PD, which is our police
department for the district and has the following frequency pair listed on
it:

VHF: RX 173.325 DPL 331 and TX 158.385 DPL 331

The other radio is marked the following:

UHF: 451.725 / 456.725

There is no documentation with this equipment, the person incharge of them
originally left the district some years ago and no one knows anything about
them, expect where they are located, as far as these two boxes go and what
frequencies that have listed.


Which brings me back to our department, we can find out repeater located
anywhere physcially.  Our repeater pair is listed as:

UHF: 451.750 / 456.750

That is according to FCC, repeater listing and other information I have been
able to obtain and by listening to it on a UHF amateur radio to see which
frequency they were on.

That being said, it is possible that the MTR2000 that is marked with the one
UHF frequency, might actually have both pairs programmed into it, but only
one can run at a time, right?

Is there a way to find out if there is more than one frequency is programmed
into the unit and if so, how might we go about that?  Another reason I am
asking is that we might be upgrading our system in the very near future and
I might be able to get my hands on these repeaters.

Thanks in advance.

--- In Repeater-Builder@yahoogroups.com, Brian Raker 
wrote:
>
> The radio can be programmed for multiple frequency pairs.  That being
> said, it cannot operate more than one channel / programmed pair of
> frequencies at one time.
> 
> -Brian / KF4ZWZ
> 
> On Thu, Aug 13, 2009 at 3:23 PM, Christopher
> Hodgdon wrote:
> > This is a question I have been asked and don't have an answer for.  This
could be for either amateur operation or commercial operation, but it
relates to the repeater itself.
> >
> > Can a Motorola MTR2000 setup on UHF be setup to function as a repeater
on more than one pair of frequencies?  I know looking at the brochure on the
website, it says that the NO. of Frequencies are upto 32.
> >
> > Does that mean it can handle two different sets of repeater pairs at the
same time in the same radio?
> >
> > These are commercial frequencies I am listed at commercial, but they are
for example purposes:
> >
> > Can the following setup work with the MTR2000?
> >
> > Frequency Pair 1: 451.725/456.725
> > Frequency Pair 2: 451.750/456.750
> >
> > Can one MTR2000 handle both of these at the same time?
> >
> > Thank in advance.
> >
> >
> >
> > 
> >
> >
> >
> > Yahoo! Groups Links
> >
> >
> >
> >
>








Yahoo! Groups Links

Re: [Repeater-Builder] Re: Motorola MTR2000 Question

[Brian Raker]

On Thu, Aug 13, 2009 at 4:29 PM, Christopher
Hodgdon wrote:


> I do have access to a "radio house" located at our high school football field 
> and it has two MTR2000 in it, plus two different antennas.  One connected to 
> one radio and one connected to the other.
>

Two antennas, two radios.  Should be a duplexer for each radio, and
duplexers are not easily field tuned.  For all intents, these radios
are both hardset to the freqs they are programmed to, and apparently
currently operating on.


>
> That being said, it is possible that the MTR2000 that is marked with the one 
> UHF frequency, might actually have both pairs programmed into it, but only 
> one can run at a time, right?
>

Possible.  But doubtful as listed above.

> Is there a way to find out if there is more than one frequency is programmed 
> into the unit and if so, how might we go about that?  Another reason I am 
> asking is that we might be upgrading our system in the very near future and I 
> might be able to get my hands on these repeaters.
>

Yep.  RVN4148, Motorola's RSS/CPP for the MTR2000.  Also, the
interface cable is 30-82056X02, RJ45 - DB9 serial interface.

> Thanks in advance.

No problem!

>
> --- In Repeater-Builder@yahoogroups.com, Brian Raker  wrote:
>>
>> The radio can be programmed for multiple frequency pairs.  That being
>> said, it cannot operate more than one channel / programmed pair of
>> frequencies at one time.
>>
>> -Brian / KF4ZWZ
>>

[Repeater-Builder] Re: Motorola MTR2000 Question

[Christopher Hodgdon]

Here's the deal, I work for a local school district, I have been kind of thrust 
into a temp. communications specialist position while we obtain some new buses 
and working with the company that will be adding the new radios to them.

Over the last few weeks, we have been trying to determine the location of our 
repeater.  The place were it is listed on the FCC license paperwork does not 
exist.  I know, I am pushing them to get it updated.  But that is another story 
all together.

I do have access to a "radio house" located at our high school football field 
and it has two MTR2000 in it, plus two different antennas.  One connected to 
one radio and one connected to the other.

One radio is marked with the description of KISD PD, which is our police 
department for the district and has the following frequency pair listed on it:

VHF: RX 173.325 DPL 331 and TX 158.385 DPL 331

The other radio is marked the following:

UHF: 451.725 / 456.725

There is no documentation with this equipment, the person incharge of them 
originally left the district some years ago and no one knows anything about 
them, expect where they are located, as far as these two boxes go and what 
frequencies that have listed.

Which brings me back to our department, we can find out repeater located 
anywhere physcially.  Our repeater pair is listed as:

UHF: 451.750 / 456.750

That is according to FCC, repeater listing and other information I have been 
able to obtain and by listening to it on a UHF amateur radio to see which 
frequency they were on.

That being said, it is possible that the MTR2000 that is marked with the one 
UHF frequency, might actually have both pairs programmed into it, but only one 
can run at a time, right?

Is there a way to find out if there is more than one frequency is programmed 
into the unit and if so, how might we go about that?  Another reason I am 
asking is that we might be upgrading our system in the very near future and I 
might be able to get my hands on these repeaters.

Thanks in advance.

--- In Repeater-Builder@yahoogroups.com, Brian Raker  wrote:
>
> The radio can be programmed for multiple frequency pairs.  That being
> said, it cannot operate more than one channel / programmed pair of
> frequencies at one time.
> 
> -Brian / KF4ZWZ
> 
> On Thu, Aug 13, 2009 at 3:23 PM, Christopher
> Hodgdon wrote:
> > This is a question I have been asked and don't have an answer for.  This 
> > could be for either amateur operation or commercial operation, but it 
> > relates to the repeater itself.
> >
> > Can a Motorola MTR2000 setup on UHF be setup to function as a repeater on 
> > more than one pair of frequencies?  I know looking at the brochure on the 
> > website, it says that the NO. of Frequencies are upto 32.
> >
> > Does that mean it can handle two different sets of repeater pairs at the 
> > same time in the same radio?
> >
> > These are commercial frequencies I am listed at commercial, but they are 
> > for example purposes:
> >
> > Can the following setup work with the MTR2000?
> >
> > Frequency Pair 1: 451.725/456.725
> > Frequency Pair 2: 451.750/456.750
> >
> > Can one MTR2000 handle both of these at the same time?
> >
> > Thank in advance.
> >
> >
> >
> > 
> >
> >
> >
> > Yahoo! Groups Links
> >
> >
> >
> >
>

Re: [Repeater-Builder] Motorola MTR2000 Question

[Brian Raker]

The radio can be programmed for multiple frequency pairs.  That being
said, it cannot operate more than one channel / programmed pair of
frequencies at one time.

-Brian / KF4ZWZ

On Thu, Aug 13, 2009 at 3:23 PM, Christopher
Hodgdon wrote:
> This is a question I have been asked and don't have an answer for.  This 
> could be for either amateur operation or commercial operation, but it relates 
> to the repeater itself.
>
> Can a Motorola MTR2000 setup on UHF be setup to function as a repeater on 
> more than one pair of frequencies?  I know looking at the brochure on the 
> website, it says that the NO. of Frequencies are upto 32.
>
> Does that mean it can handle two different sets of repeater pairs at the same 
> time in the same radio?
>
> These are commercial frequencies I am listed at commercial, but they are for 
> example purposes:
>
> Can the following setup work with the MTR2000?
>
> Frequency Pair 1: 451.725/456.725
> Frequency Pair 2: 451.750/456.750
>
> Can one MTR2000 handle both of these at the same time?
>
> Thank in advance.
>
>
>
> 
>
>
>
> Yahoo! Groups Links
>
>
>
>

[Repeater-Builder] Motorola MTR2000 Question

[Christopher Hodgdon]

This is a question I have been asked and don't have an answer for.  This could 
be for either amateur operation or commercial operation, but it relates to the 
repeater itself.

Can a Motorola MTR2000 setup on UHF be setup to function as a repeater on more 
than one pair of frequencies?  I know looking at the brochure on the website, 
it says that the NO. of Frequencies are upto 32.

Does that mean it can handle two different sets of repeater pairs at the same 
time in the same radio?

These are commercial frequencies I am listed at commercial, but they are for 
example purposes:

Can the following setup work with the MTR2000?

Frequency Pair 1: 451.725/456.725
Frequency Pair 2: 451.750/456.750

Can one MTR2000 handle both of these at the same time?

Thank in advance.

[Repeater-Builder] Re: An advocate for a little audio compression

[Laryn Lohman]

Skipp, right, you do get audio compression by "hitting" the limiter in the 
transmitter harder.  I've done that several times myself on repeaters.  It does 
give a nice boost to the user's audio, but it increases audio background noise 
by the same amount.  I've A/Bd input audio vs. output audio numerous times and 
the output audio always has more wind noise, other people talking, RF noise, 
etc., than the input does.  Essentially, this is a very fast release compressor.

This is why I always recommend SLOW release compression, more properly called 
AGC or ALC.  Several seconds release time for sure.  It sounds much better than 
hitting the transmitter limiter harder, and accomplishes the same goal.

Laryn K8TVZ


--- In Repeater-Builder@yahoogroups.com, "skipp025"  wrote:
>
> > Jim Brown  wrote:
> > One way might be to set the transmitter deviation to 5 kHz 
> > for a 2.5 kHz deviation input signal.  Set the VOX threshold 
> > to trip at about 3 kHz input deviation and use it to 
> > switch in a 6 dBV pad to cut the deviation back down.  A 
> > fast attack VOX with a slow release would keep the audio 
> > from pumping up and down.
> > 73 - Jim  W5ZIT
> 
> You'd get compression/limiting just using the example above 
> without any type of Vox Control Circuit. If the input versus 
> output audio (deviation) values are properly thought out 
> the original circuit without any extra circuit hardware is 
> all you'd really need. No need to complicate things... 
> 
> cheers, 
> s.
>

[Repeater-Builder] Johnson CR1010 receiver tuning issues

[n0qzv_jhorn]

I am having difficulty tuning a Johnson CR1010 receiver that I have crystaled 
for 448.975. I was able to get it to tune to the original frequency of 466.xxx 
without any problem. I was wondering if there is a mod that needs to be done to 
get it down that low.

thank you

James N0QZV 

[Repeater-Builder] Re: An advocate for a little audio compression

[skipp025]

Re: An advocate for a little audio  compression 

> >A lot of people have voices, which are not considered "Radio"
> >or "Broadcast Quality" in both pitch and volume. Add a little
> >mic shyness and you're often stuck with lower average deviation.

> n...@... wrote:
> Still, no reason they can't close-talk the mic with 
> whatever voice they have.

Many people new to radio can be more than casually skeptical 
about shoving a mic right up to their mouth. I've seen situations 
where some people who are first exposed to two-way radio are 
quickly chased away by the fairly bossy or negative actions 
of others in regards to orders about close talking into a mic. 

> >Trying to inform and fix users about close talking the mic
> >at higher volume levels does a good job of scaring some folks
> >off.
 
> I guess this is where philosophical issues come to play.  
> I don't care if I lose users that are incapable of properly 
> modulating their radios.

Some people do care and there are novel and fairly easy ways 
to help address the situation. 

> Any ol' audio detector/filter/comparitor would do.  Nothing 
> fancy like the "SmartVox" we use for Shuttle audio (which 
> doesn't work on amplitude, but rather changes in audio 
> frequency), just something that says "I saw peaks over 4 
> kHz" or "average deviation over the past 5 seconds was at 
> least 1.5 kHz".
> Bob NO6B

What action does the above circuit take?  

s. 

[Repeater-Builder] Re: An advocate for a little audio compression

[skipp025]

> Jim Brown  wrote:
> One way might be to set the transmitter deviation to 5 kHz 
> for a 2.5 kHz deviation input signal.  Set the VOX threshold 
> to trip at about 3 kHz input deviation and use it to 
> switch in a 6 dBV pad to cut the deviation back down.  A 
> fast attack VOX with a slow release would keep the audio 
> from pumping up and down.
> 73 - Jim  W5ZIT

You'd get compression/limiting just using the example above 
without any type of Vox Control Circuit. If the input versus 
output audio (deviation) values are properly thought out 
the original circuit without any extra circuit hardware is 
all you'd really need. No need to complicate things... 

cheers, 
s.