[Repeater-Builder] Re: Thermoelectric Generator

[skipp025]

You should have it now Tony... I'll copy the manuals and 
scan them into pdf for the RB and Sonic Web pages. 

a big thank you! 

skipp 

> Tony Faiola <[EMAIL PROTECTED]> wrote:
>
> Hello Skipp:
> 
> Please give me your name and address, and I'll send you the three ring 
> binder for the generator.  It will give you a good run down on the 
> operation and installation.  Drawings are included.
> 
> You don't need to give me the six lottery numbers.
> 
> Tony, K3WX
> 
> skipp025 wrote:
> > Hi Tony, 
> > 
> > I'd be very intersted in anything you have that you'd be willing 
> > to share.  The units now available surplus here in California are 
> > the classic 3M-520 units and there's one left if anyone is 
> > interested. 
> > 
> > It's been a while but I installed a few Global units many years 
> > back but the customer has the paperwork for them and they're long 
> > gone from the scene. 
> > 
> > One Global unit I have here looks like a turbine... in a low 
> > cyclinder layout. I'm going to snap some pictures of these two 
> > different (3M & Global) units and post them in the group photos 
> > section. 
> > 
> > Mike from the group was nice enough to contact me off the group and 
> > provide a contact for someone still using these units. Jim S. and 
> > I had a nice long chat about them as he and I have talked a few times 
> > in the past.  The 3M units were rated for 10 years at full power and 
> > he'd had them in regular service for 20 plus years (at 2/3 power). 
> > So the reliability is there... the informal propane gals per year 
> > is just over 400 so a common 575 gal propane tank would work quite 
> > nicely to power a standard size com site with about 15 amps at 14.1 
> > vdc. . 
> > 
> > Please email me off the group if you like... I'll make it worth your 
> > while to share the information... 
> > 
> > thanks 
> > skipp 
> > 
> > 
> > 
> > 
> >>, Tony Faiola  wrote:
> >>Hello Skipp:
> >>
> >>I think the manuals are still in my library for Global 
> >>Thermoelectric, a Canadian company.
> >>
> >>If you are interested, let me know.
> >>
> >>Ciao, Tony, K3WX
> >>
> >>
> >>>skipp025 wrote:
> >>>Re: Thermoelectric Generator   
> >>>
> >>>Anyone on the group every owned/used or played with a 
> >>>Thermoelectric Generator?  Brands like 3M or the two 
> >>>known Canadian Compaines making  TEG Units. 
> >>>
> >>>Surplus units from CA State Surplus are being sold local (to me) 
> >>>minus any docs and/or info. The propane units are pretty easy to 
> >>>figure out but I've got one here with a bulk liquid fuel feeder 
> >>>hose requirement (like the kind you see used for 6 gal marine 
> >>>gas engines). 
> >>>
> >>>Info to share? Lies to tell? Pictures? Possible Paperwork? 
> >>>Next six Lotto numbers? 
> >>>skipp 
> >>>skipp025 at yahoo.com
>

Re: [Repeater-Builder] Hamtronics

[Nate Duehr]

On Jul 13, 2007, at 6:25 AM, Ron Wright wrote:

> Eric and all,
>
> On the PA problem has anyone on the board tried using PAs from say  
> Micors or GE Mastr line made for 150 or UHF on 220.

Everything I've read about converting MASTR II PA's from VHF to 220  
doesn't look too good.

I have heard rumor that moving a MASTR III PA might be easier.  No  
desire to hunt for one and try it, though.

Most of the MASTR II 220 conversions I've seen on-air took a "brick  
module" 220 PA from RF Parts and fed that from the converted M2  
exciter, for around 25-35W out.

--
Nate Duehr
[EMAIL PROTECTED]

Re: [Repeater-Builder] Mocom 10 info?

[JOHN MACKEY]

Thanks for posting that, George!!

The ebay listing does not say what frequency range/band it is.  
I've never seen that radio, but the case looks like what they used for the
Mocom 35.

-- Original Message --
Received: Fri, 13 Jul 2007 10:23:43 PM CDT
From: "George Henry" <[EMAIL PROTECTED]>
To: 
Subject: Re: [Repeater-Builder] Mocom 10 info?

> It's already ended, but it was item number 290136403140...  you should be 
> able to pull it up that way.
> 
> George
> 
> 
> - Original Message - 
> From: "JOHN MACKEY" <[EMAIL PROTECTED]>
> To: 
> Sent: Friday, July 13, 2007 7:03 PM
> Subject: Re: [Repeater-Builder] Mocom 10 info?
> 
> 
> > Could you please post the ebay link to the UHF Mocom 10 on UHF?  I 
> > searched &
> > can't find it.
> >
> > -- Original Message --
> > Received: Fri, 13 Jul 2007 06:34:32 PM CDT
> > From: "George Henry" <[EMAIL PROTECTED]>
> > To: 
> > Subject: Re: [Repeater-Builder] Mocom 10 info?
> >
> >> The one for sale on E-Bay certainly does not look anything like the 
> >> low-band
> > Mocom 10 I had about 20 years ago...
> >>
> >>
> >>   - Original Message - 
> >>   From: [EMAIL PROTECTED]
> >>   To: Repeater-Builder@yahoogroups.com
> >>   Sent: Friday, July 13, 2007 8:03 AM
> >>   Subject: Re: [Repeater-Builder] Mocom 10 info?
> >>
> >>
> >>   I have a UHF Mocom 10. Looks like a cheapened Mocom 35. Nothing like 
> >> the
> > lowband radio. Not sure if it was also made in VHF
> >>
> >>   Glenn
> >>   W8AK
> >>
> 
> 

Re: [Repeater-Builder] Mocom 10 info?

[George Henry]

It's already ended, but it was item number 290136403140...  you should be 
able to pull it up that way.

George


- Original Message - 
From: "JOHN MACKEY" <[EMAIL PROTECTED]>
To: 
Sent: Friday, July 13, 2007 7:03 PM
Subject: Re: [Repeater-Builder] Mocom 10 info?


> Could you please post the ebay link to the UHF Mocom 10 on UHF?  I 
> searched &
> can't find it.
>
> -- Original Message --
> Received: Fri, 13 Jul 2007 06:34:32 PM CDT
> From: "George Henry" <[EMAIL PROTECTED]>
> To: 
> Subject: Re: [Repeater-Builder] Mocom 10 info?
>
>> The one for sale on E-Bay certainly does not look anything like the 
>> low-band
> Mocom 10 I had about 20 years ago...
>>
>>
>>   - Original Message - 
>>   From: [EMAIL PROTECTED]
>>   To: Repeater-Builder@yahoogroups.com
>>   Sent: Friday, July 13, 2007 8:03 AM
>>   Subject: Re: [Repeater-Builder] Mocom 10 info?
>>
>>
>>   I have a UHF Mocom 10. Looks like a cheapened Mocom 35. Nothing like 
>> the
> lowband radio. Not sure if it was also made in VHF
>>
>>   Glenn
>>   W8AK
>>

[Repeater-Builder] Re:looking for parts

[August]

Hi Larry,
I gave up fighting the problems on both 6 and 10 meter repeaters and 
have only gone with "Split Site" repeaters using a UHF link between 
them. I  use GE Mastr II's because it is so easy to pull out the Low 
Band receiver and replace it with a UHF receiver and place that Low Band receiver into the UHF TX case for a system link setup.


Yes you will require two sites with this sort of setup but you will end 
up in most cases with a far better low band repeater system, no super 
high duplexer cost andthe 10 meter units are the size of a water boiler! 
6 meters take up a good deal of space as well. I have also found it 
rather easy to add additional Low Band receivers into the system as well for far better coverage from HT's, etc..


Just a passing thought for you. So much easier if a second site is 
available to you. So easy to set up and tune up the system.


August
W8MIA
Kingman, AZ

Re: [Repeater-Builder] Micor vhf to 224 MHz conversions

[Camilo So]

Hi Skipp
Is it possible to share you Micor pa mod to 220 and the LPF circuit. 

Thanks
milo


  - Original Message - 
  From: skipp025 
  To: Repeater-Builder@yahoogroups.com 
  Sent: Friday, July 13, 2007 3:23 PM
  Subject: [Repeater-Builder] Micor vhf to 224 MHz conversions


  Hi Ron, 

  I've tried and completed a number of micor pa mods... it's been 
  a number of years since I did the vhf to 220 conversion. It did 
  work but pretty poor related to what I was expecting or hoping 
  for. 

  Pre modification I measured all stage values & levels. Yes I removed 
  the LPF and built a 224 MHz replacement filter using metal caps 
  and coils in a standard 5 section layout. 

  The conversion up was tried in two forms... a reduction in both L 
  and C values were tried with the L values showing the best 
  practcial performance (pretty much required to make it work), which 
  was still nothing to get excited about when the best we could get 
  was less than 40% of normal rated power. 

  We bailed on more conversions because of the ease of hybrid low 
  drive 224 MHz PA Modules and I started just making 224 two and three 
  stage repeater amplifiers with rated 40 watt output. 

  In a file somewhere I have all the conversion noted recorded... "our 
  results did vary" quite a bit...

  cheers, 
  skipp 

  > Ron Wright <[EMAIL PROTECTED]> wrote:
  > skipp025,
  > On the Micor PA for 220 I assume you disconnected the LPF and 
  > was using a VHF PA.
  > 
  > Since the Micor PA did have tuning did you modify the variable 
  > caps; lowering their value???
  > 
  > 73, ron, n9ee/r
  > 
  > 
  > 
  > >From: skipp025 <[EMAIL PROTECTED]>
  > >Date: 2007/07/13 Fri PM 12:36:06 CDT
  > >To: Repeater-Builder@yahoogroups.com
  > >Subject: Re: [Repeater-Builder] Hamtronics
  > 
  > > 
  > >I have converted Micors and it's not even close to a free lunch. 
  > >Best I was able to do with a full on 220 micor pa conversion was 
  > >about 20 to 30% of rated power. I also suspect the transistor/devices 
  > >don't perform very well that far above their spec'd range of 
  > >operation. 
  > >s. 
  > >
  > >> Ron Wright  wrote:
  > >> Eric and all,
  > >>
  > >> On the PA problem has anyone on the board tried using PAs from 
  > >> say Micors or GE Mastr line made for 150 or UHF on 220. 
  > >>
  > >> These often have LPF on their output which can be taken out (don't 
  > >> like to). Since these amps are wide band they just might move 
  > >> up/down to 220. Some do have tuning like in the Micor so would be 
  > >> little harder, but GEs only have a pot for adjusting drive/output 
  > >> and some with SWR shutdown circuit adjustments.
  > >>
  > >> 73, ron, n9ee/r
  > >
  > > 
  > 
  > 
  > Ron Wright, N9EE
  > 727-376-6575
  > MICRO COMPUTER CONCEPTS
  > Owner 146.64 repeater Tampa Bay, FL
  > No tone, all are welcome.
  >



   

Re: [Repeater-Builder] Re: Thermoelectric Generator

[Tony Faiola]

Hello Skip:

Please give me your name and address, and I'll send you the three ring 
binder for the generator.  It will give you a good run down on the 
operation and installation.  Drawings are included.

You don't need to give me the six lottery numbers.

Tony, K3WX

skipp025 wrote:
> Hi Tony, 
> 
> I'd be very intersted in anything you have that you'd be willing 
> to share.  The units now available surplus here in California are 
> the classic 3M-520 units and there's one left if anyone is 
> interested. 
> 
> It's been a while but I installed a few Global units many years 
> back but the customer has the paperwork for them and they're long 
> gone from the scene. 
> 
> One Global unit I have here looks like a turbine... in a low 
> cyclinder layout. I'm going to snap some pictures of these two 
> different (3M & Global) units and post them in the group photos 
> section. 
> 
> Mike from the group was nice enough to contact me off the group and 
> provide a contact for someone still using these units. Jim S. and 
> I had a nice long chat about them as he and I have talked a few times 
> in the past.  The 3M units were rated for 10 years at full power and 
> he'd had them in regular service for 20 plus years (at 2/3 power). 
> So the reliability is there... the informal propane gals per year 
> is just over 400 so a common 575 gal propane tank would work quite 
> nicely to power a standard size com site with about 15 amps at 14.1 
> vdc. . 
> 
> Please email me off the group if you like... I'll make it worth your 
> while to share the information... 
> 
> thanks 
> skipp 
> 
> 
> 
> 
>>, Tony Faiola <[EMAIL PROTECTED]> wrote:
>>Hello Skipp:
>>
>>I think the manuals are still in my library for Global 
>>Thermoelectric, a Canadian company.
>>
>>If you are interested, let me know.
>>
>>Ciao, Tony, K3WX
>>
>>
>>>skipp025 wrote:
>>>Re: Thermoelectric Generator   
>>>
>>>Anyone on the group every owned/used or played with a 
>>>Thermoelectric Generator?  Brands like 3M or the two 
>>>known Canadian Compaines making  TEG Units. 
>>>
>>>Surplus units from CA State Surplus are being sold local (to me) 
>>>minus any docs and/or info. The propane units are pretty easy to 
>>>figure out but I've got one here with a bulk liquid fuel feeder 
>>>hose requirement (like the kind you see used for 6 gal marine 
>>>gas engines). 
>>>
>>>Info to share? Lies to tell? Pictures? Possible Paperwork? 
>>>Next six Lotto numbers? 
>>>skipp 
>>>skipp025 at yahoo.com 

Re: [Repeater-Builder] Mocom 10 info?

[JOHN MACKEY]

Could you please post the ebay link to the UHF Mocom 10 on UHF?  I searched &
can't find it.

-- Original Message --
Received: Fri, 13 Jul 2007 06:34:32 PM CDT
From: "George Henry" <[EMAIL PROTECTED]>
To: 
Subject: Re: [Repeater-Builder] Mocom 10 info?

> The one for sale on E-Bay certainly does not look anything like the low-band
Mocom 10 I had about 20 years ago... 
> 
> 
>   - Original Message - 
>   From: [EMAIL PROTECTED] 
>   To: Repeater-Builder@yahoogroups.com 
>   Sent: Friday, July 13, 2007 8:03 AM
>   Subject: Re: [Repeater-Builder] Mocom 10 info?
> 
> 
>   I have a UHF Mocom 10. Looks like a cheapened Mocom 35. Nothing like the
lowband radio. Not sure if it was also made in VHF
> 
>   Glenn
>   W8AK
> 
> 
> 
> 
> 
>
--
>   Get a sneak peak of the all-new AOL.com.
>

Re: [Repeater-Builder] Mocom 10 info?

[George Henry]

The one for sale on E-Bay certainly does not look anything like the low-band 
Mocom 10 I had about 20 years ago... 


  - Original Message - 
  From: [EMAIL PROTECTED] 
  To: Repeater-Builder@yahoogroups.com 
  Sent: Friday, July 13, 2007 8:03 AM
  Subject: Re: [Repeater-Builder] Mocom 10 info?


  I have a UHF Mocom 10. Looks like a cheapened Mocom 35. Nothing like the 
lowband radio. Not sure if it was also made in VHF

  Glenn
  W8AK





--
  Get a sneak peak of the all-new AOL.com.
   

[Repeater-Builder] Micor vhf to 224 MHz conversions

[skipp025]

Hi Ron, 

I've tried and completed a number of micor pa mods... it's been 
a number of years since I did the vhf to 220 conversion. It did 
work but pretty poor related to what I was expecting or hoping 
for. 

Pre modification I measured all stage values & levels. Yes I removed 
the LPF and built a 224 MHz replacement filter using metal caps 
and coils in a standard 5 section layout. 

The conversion up was tried in two forms... a reduction in both L 
and C values were tried with the L values showing the best 
practcial performance (pretty much required to make it work), which 
was still nothing to get excited about when the best we could get 
was less than 40% of normal rated power.  

We bailed on more conversions because of the ease of hybrid low 
drive 224 MHz PA Modules and I started just making 224 two and three 
stage repeater amplifiers with rated 40 watt output. 

In a file somewhere I have all the conversion noted recorded... "our 
results did vary" quite a bit...

cheers, 
skipp 

> Ron Wright <[EMAIL PROTECTED]> wrote:
> skipp025,
> On the Micor PA for 220 I assume you disconnected the LPF and 
> was using a VHF PA.
> 
> Since the Micor PA did have tuning did you modify the variable 
> caps; lowering their value???
> 
> 73, ron, n9ee/r
> 
> 
> 
> >From: skipp025 <[EMAIL PROTECTED]>
> >Date: 2007/07/13 Fri PM 12:36:06 CDT
> >To: Repeater-Builder@yahoogroups.com
> >Subject: Re: [Repeater-Builder] Hamtronics
> 
> >  
> >I have converted Micors and it's not even close to a free lunch. 
> >Best I was able to do with a full on 220 micor pa conversion was 
> >about 20 to 30% of rated power. I also suspect the transistor/devices 
> >don't perform very well that far above their spec'd range of 
> >operation. 
> >s. 
> >
> >> Ron Wright  wrote:
> >> Eric and all,
> >>
> >> On the PA problem has anyone on the board tried using PAs from 
> >> say Micors or GE Mastr line made for 150 or UHF on 220.  
> >>
> >> These often have LPF on their output which can be taken out (don't 
> >> like to).  Since these amps are wide band they just might move 
> >> up/down to 220.  Some do have tuning like in the Micor so would be 
> >> little harder, but GEs only have a pot for adjusting drive/output 
> >> and some with SWR shutdown circuit adjustments.
> >>
> >> 73, ron, n9ee/r
> >
> >
> 
> 
> Ron Wright, N9EE
> 727-376-6575
> MICRO COMPUTER CONCEPTS
> Owner 146.64 repeater Tampa Bay, FL
> No tone, all are welcome.
>

Re: RE: RE: [Repeater-Builder] Solar Power

[Mike Morris WA6ILQ]

Mike WA6ILQ

At 11:54 AM 07/13/07, you wrote:
>Eric,
>
>This is good info.  I know many need this type of info.  Here in 
>Florida where we have lots of sun most of the year a number of Hams 
>are interested in solar for emergency use as well as saving one the 
>electric bill.  Remote repeater sites is another I hear about.
>
>Are there any web sites on things like the chargers, panels, etc you 
>can give???
>
>Many need info on the batteries and charging and yep I can see when 
>the repeater transmits it would look to the charger as if the 
>batteries needed charging.  For the life of the battery the charging 
>is very important.
>
>73, ron, n9ee/r
>
>
>
> >From: Eric Lemmon <[EMAIL PROTECTED]>
> >Date: 2007/07/13 Fri PM 12:36:54 CDT
> >To: Repeater-Builder@yahoogroups.com
> >Subject: RE: RE: [Repeater-Builder] Solar Power
>
> >
> >Ron,
> >
> >The SunWize installation instructions specifically warn against grounding
> >the system (panels, battery, or radio) at more than one point, since to do
> >so will short out one or more current sensors.  Inasmuch as the metal parts
> >of the antenna are always grounded for lightning protection, that means that
> >it is the radio that must have its negative terminal grounded.
> >
> >There is no reason to ground any other component in the system.  The solar
> >panel output terminals are always floating with respect to the mounting
> >frame, for exactly this reason.  The mounting frame can be grounded for
> >lightning protection.
> >
> >Solar power is quite pervasive in Europe, particularly in Sweden, Germany,
> >and Finland- where many solar power components are manufactured.  In some
> >countries, it is common to ground the positive terminal.  In order to make
> >such components work in other countries, certain precautions must be taken.
> >Follow the instructions packed with the charge controller to the letter, and
> >don't risk damaging an expensive part by assuming that it's okay to ground
> >the circuit at more than one point.
> >
> >Most of the troublesome solar-powered repeaters that I know about have
> >failed for obvious reasons.  One was installed with the solar panel
> >connected directly to the battery, without a charge controller.  The battery
> >failed in one year due to overcharging.  Another solar-powered repeater
> >failed because the owner connected the radio directly to the battery instead
> >of to the charge controller's load terminals.  In this case, the charge
> >controller had no way to determine the battery's state of charge.
> >
> >I could cite several more examples, but I hope I've made my point:  Use a
> >good quality solar charge controller, and make all wiring exactly per the
> >instructions packed with it.
> >
> >73, Eric Lemmon WB6FLY
> >
> >
> >-Original Message-
> >From: Repeater-Builder@yahoogroups.com
> >[mailto:[EMAIL PROTECTED] On Behalf Of Ron Wright
> >Sent: Friday, July 13, 2007 9:24 AM
> >To: Repeater-Builder@yahoogroups.com
> >Subject: Re: RE: [Repeater-Builder] Solar Power
> >
> >Eric,
> >
> >On the solar panel negative lead could you ground the negative of the
> >battery, but make sure the solar panel terminals, both pos and neg, are not
> >grounded??? The solar panel and charger would be floating on their own with
> >the combination output connected to the battery with the pos to pos and neg
> >to neg of the battery, but it grounded.
> >
> >73, ron, n9ee/r
> >
> >>From: Eric Lemmon <[EMAIL PROTECTED]  >
> >>Date: 2007/07/13 Fri AM 11:08:10 CDT
> >>To: Repeater-Builder@yahoogroups.com
> >
> >>Subject: RE: [Repeater-Builder] Solar Power
> >
> >>
> >>Tim,
> >>
> >>I have a commercial UHF repeater that has been operating 24/7 on a mountain
> >>ridge since January 2003. It uses two Siemens 75 watt solar panels in
> >>parallel, two Concorde 105 AH SLA batteries in parallel, a SunWize Steca
> >>charge controller, and a Motorola R1225 45 watt radio. A Celwave PD696-1-2
> >>duplexer feeds a Decibel Products DB408 aluminum dipole antenna.
> >>
> >>Perhaps the best advice I can offer is to properly apply the solar power
> >>components. The solar panel should be large enough supply at least eight
> >>times the standby current required by the repeater equipment, and the
> >>battery should be a sealed lead-acid type both for safety and longevity and
> >>of a capacity sufficient to run the repeater for at least two days with no
> >>input from the solar panel. Finally, use a commercial solar charge
> >>controller to manage your power flow. Your load should connect to the
> >>charge controller and not to the battery. Some charge controllers have
> >>current sensors in the negative lead, so you may need to ensure that there
> >>are no connections to ground except at the load circuit. Since the antenna
> >>cable shield is connected to ground, you cannot ground the negative poles
> >of
> 

Re: Re: [Repeater-Builder] Hamtronics

[Ron Wright]

skipp025,

On the Micor PA for 220 I assume you disconnected the LPF and was using a VHF 
PA.

Since the Micor PA did have tuning did you modify the variable caps; lowering 
their value???

73, ron, n9ee/r



>From: skipp025 <[EMAIL PROTECTED]>
>Date: 2007/07/13 Fri PM 12:36:06 CDT
>To: Repeater-Builder@yahoogroups.com
>Subject: Re: [Repeater-Builder] Hamtronics

>  
>I have converted Micors and it's not even close to a free lunch. 
>Best I was able to do with a full on 220 micor pa conversion was 
>about 20 to 30% of rated power. I also suspect the transistor/devices 
>don't perform very well that far above their spec'd range of 
>operation. 
>s. 
>
>> Ron Wright <[EMAIL PROTECTED]> wrote:
>> Eric and all,
>>
>> On the PA problem has anyone on the board tried using PAs from 
>> say Micors or GE Mastr line made for 150 or UHF on 220.  
>>
>> These often have LPF on their output which can be taken out (don't 
>> like to).  Since these amps are wide band they just might move 
>> up/down to 220.  Some do have tuning like in the Micor so would be 
>> little harder, but GEs only have a pot for adjusting drive/output 
>> and some with SWR shutdown circuit adjustments.
>>
>> 73, ron, n9ee/r
>
>


Ron Wright, N9EE
727-376-6575
MICRO COMPUTER CONCEPTS
Owner 146.64 repeater Tampa Bay, FL
No tone, all are welcome.

Re: RE: RE: [Repeater-Builder] Solar Power

[Ron Wright]

Eric,

This is good info.  I know many need this type of info.  Here in Florida where 
we have lots of sun most of the year a number of Hams are interested in solar 
for emergency use as well as saving one the electric bill.  Remote repeater 
sites is another I hear about.

Are there any web sites on things like the chargers, panels, etc you can 
give???  

Many need info on the batteries and charging and yep I can see when the 
repeater transmits it would look to the charger as if the batteries needed 
charging.  For the life of the battery the charging is very important.

73, ron, n9ee/r



>From: Eric Lemmon <[EMAIL PROTECTED]>
>Date: 2007/07/13 Fri PM 12:36:54 CDT
>To: Repeater-Builder@yahoogroups.com
>Subject: RE: RE: [Repeater-Builder] Solar Power

>  
>Ron,
>
>The SunWize installation instructions specifically warn against grounding
>the system (panels, battery, or radio) at more than one point, since to do
>so will short out one or more current sensors.  Inasmuch as the metal parts
>of the antenna are always grounded for lightning protection, that means that
>it is the radio that must have its negative terminal grounded.
>
>There is no reason to ground any other component in the system.  The solar
>panel output terminals are always floating with respect to the mounting
>frame, for exactly this reason.  The mounting frame can be grounded for
>lightning protection.
>
>Solar power is quite pervasive in Europe, particularly in Sweden, Germany,
>and Finland- where many solar power components are manufactured.  In some
>countries, it is common to ground the positive terminal.  In order to make
>such components work in other countries, certain precautions must be taken.
>Follow the instructions packed with the charge controller to the letter, and
>don't risk damaging an expensive part by assuming that it's okay to ground
>the circuit at more than one point.
>
>Most of the troublesome solar-powered repeaters that I know about have
>failed for obvious reasons.  One was installed with the solar panel
>connected directly to the battery, without a charge controller.  The battery
>failed in one year due to overcharging.  Another solar-powered repeater
>failed because the owner connected the radio directly to the battery instead
>of to the charge controller's load terminals.  In this case, the charge
>controller had no way to determine the battery's state of charge.
>
>I could cite several more examples, but I hope I've made my point:  Use a
>good quality solar charge controller, and make all wiring exactly per the
>instructions packed with it.
>
>73, Eric Lemmon WB6FLY
> 
>
>-Original Message-
>From: Repeater-Builder@yahoogroups.com
>[mailto:[EMAIL PROTECTED] On Behalf Of Ron Wright
>Sent: Friday, July 13, 2007 9:24 AM
>To: Repeater-Builder@yahoogroups.com
>Subject: Re: RE: [Repeater-Builder] Solar Power
>
>Eric,
>
>On the solar panel negative lead could you ground the negative of the
>battery, but make sure the solar panel terminals, both pos and neg, are not
>grounded??? The solar panel and charger would be floating on their own with
>the combination output connected to the battery with the pos to pos and neg
>to neg of the battery, but it grounded.
>
>73, ron, n9ee/r
>
>>From: Eric Lemmon <[EMAIL PROTECTED]  >
>>Date: 2007/07/13 Fri AM 11:08:10 CDT
>>To: Repeater-Builder@yahoogroups.com
> 
>>Subject: RE: [Repeater-Builder] Solar Power
>
>> 
>>Tim,
>>
>>I have a commercial UHF repeater that has been operating 24/7 on a mountain
>>ridge since January 2003. It uses two Siemens 75 watt solar panels in
>>parallel, two Concorde 105 AH SLA batteries in parallel, a SunWize Steca
>>charge controller, and a Motorola R1225 45 watt radio. A Celwave PD696-1-2
>>duplexer feeds a Decibel Products DB408 aluminum dipole antenna.
>>
>>Perhaps the best advice I can offer is to properly apply the solar power
>>components. The solar panel should be large enough supply at least eight
>>times the standby current required by the repeater equipment, and the
>>battery should be a sealed lead-acid type both for safety and longevity and
>>of a capacity sufficient to run the repeater for at least two days with no
>>input from the solar panel. Finally, use a commercial solar charge
>>controller to manage your power flow. Your load should connect to the
>>charge controller and not to the battery. Some charge controllers have
>>current sensors in the negative lead, so you may need to ensure that there
>>are no connections to ground except at the load circuit. Since the antenna
>>cable shield is connected to ground, you cannot ground the negative poles
>of
>>either the battery or the solar panel.
>>
>>73, Eric Lemmon WB6FLY
>>
>>-Original Message-
>>From: Repeater-Builder@yahoogroups.com
> 
>>[mailto:Repeater-Builder@yahoogroups.com
> ] On Behalf Of Tim

[Repeater-Builder] Re: Solar Power

[Russ H]

Hey Tim,

The Santa Fe Amateur Radio Club has opperated a solar powered repeater site
for over 2 decades. Here is the link to their repeater site:
http://www.w5sf.com/repeaters.html  Its the Elk Mountain site. The site was
initially a FS repeater site and using automotive batteries and 2 solar
collectors. In the picture, is the new building and tower, the old building
was a Montgomery Wards type metal shed and a rohn 35 tower. The tower came
down during one winter and was replaced with a self supporting tower, and a
pre-fab building. Ofcourse its over 11k ASL. At times we have had snow
covering the panels and the repeater was dead until the sun recharged the
batteries. Thankfully we have a wind gen up there now so the batteries have
a constant supply of energy.

The current site holds; APRS node, FS repeaterX2, FD repeater, VHF Ham
RepeaterX2, and a UHF linking repeater. The power side of it; 1500W Wind
turbine, ~6 Solar collectors(cant remember the total, i think six), charging
system, and the battery bank consists of 12-2V 1480AH, running two pairs of
six batteries(12V). Each battery weights: 250lbs.

Recommendation for any solar site is: armor plate your power system. 1/2"
plate is what we use around our batteries. We have yahoos in New Mexico who
like to shoot at things for fun.

73s
Russ/KC5CNT


On 13 Jul 2007 17:36:13 -, Repeater-Builder@yahoogroups.com <
Repeater-Builder@yahoogroups.com> wrote:





Posted by: "Tim" [EMAIL PROTECTED]
<[EMAIL PROTECTED]>  kk4wh
 Fri Jul 13, 2007 7:30 am (PST) I have a
site located that I would like to install a 220 Ham Repeater
but there is no electrical power. I don't know the first thing about
solar power but would like to consider this project for my first solar
powered repeater. I would appreciate any links, tips, suggestions, or
information about solar power for repeater use. I have looked at a
couple of web sites but I know there are hundreds of solar powered
sites around the country and I figured that this group would have the
experience to point me in the right direction for research or purchase
of equipment. If you would like to send off group,
[EMAIL PROTECTED]will
get to me. Thanks in advance for the help.

Tim, KK4WH




--
"Oderint Dum Metuant" - Emp. Caligula
"Sic gorgiamus allos subjectatos nunc" - Addams Family credo

RE: [Repeater-Builder] Re: Motorola R1225 versus Kenwood TKR-750

[Eric Lemmon]

Skipp,

FYI- The R1225 VHF/UHF Service Manual 6880905Z53 is available from Motorola
Parts for about $12.

73, Eric Lemmon WB6FLY
 

-Original Message-
From: Repeater-Builder@yahoogroups.com
[mailto:[EMAIL PROTECTED] On Behalf Of skipp025
Sent: Friday, July 13, 2007 11:08 AM
To: Repeater-Builder@yahoogroups.com
Subject: [Repeater-Builder] Re: Motorola R1225 versus Kenwood TKR-750

Hi Eric, 



I just pulled three 1225 uhf repeaters from two different locations 
and they all have the same failed tx pa problems. Wonder if there's 
a minor pa defect problem (like there was in early version one tkr 
repeaters) or it's just bad customer karma time. I've got to find 
a service manual before we open them up... 

cheers, 
skipp

[Repeater-Builder] Re: Motorola R1225 versus Kenwood TKR-750

[skipp025]

Hi Eric, 

I'll have to check really... the tkr-750 is normally not supplied 
with the power supply unless you order it with the repeater. Kenwood 
did make a tkb-720/820 radio... of which I've seen a few a small 
number. Don't know yet if they were full duplex and if Kenwood sells 
a tkb-750 model transceiver. 

As a new Kenwood sale for a solar site I might consider something 
custom we make here like a 71 series transceiver repeater, which 
you won't find in regular Kenwood paperwork. 

And again there are a number of other great radio brands out there. 
I enjoy any simple excuse for the 50 cent shameless plug here on 
the group. 

I just pulled three 1225 uhf repeaters from two different locations 
and they all have the same failed tx pa problems. Wonder if there's 
a minor pa defect problem (like there was in early version one tkr 
repeaters) or it's just bad customer karma time. I've got to find 
a service manual before we open them up... 

cheers, 
skipp 


> "Eric Lemmon" <[EMAIL PROTECTED]> wrote:
> Skipp,
> The Kenwood TKR-750 is a complete, packaged repeater with an 
> integral power supply and fan in a 3U rackmount cabinet.  It is 
> roughly equivalent to the Motorola RKR-1225, which is the 
> rackmount version of the desktop GR-1225 repeater.  I tuned and 
> programmed a TKR-750 for a local radio club, and I agree that 
> it is a fine radio.
> 
> The R1225 is just the radio that is inside of a GR-1225 or 
> RKR-1225, and can be bought new for about $900 in the 50 watt 
> version.  It can handle close to 100% duty cycle when run at 
> 25 watts, making it ideal for a solar-powered repeater- and 
> I have one such repeater in service now.
> 
> If the transceiver that is inside the TKR-750 can be purchased 
> separately, it would be comparable to the R1225.
> 73, Eric Lemmon WB6FLY
>  
> 
> -Original Message-
> From: Repeater-Builder@yahoogroups.com
> [mailto:[EMAIL PROTECTED] On Behalf Of skipp025
> Sent: Friday, July 13, 2007 10:31 AM
> To: Repeater-Builder@yahoogroups.com
> Subject: [Repeater-Builder] Re: Hamtronics
> 
> 
> 
> > Rather than buy a Hamtronics 2m repeater, I'd go for a Motorola 
> > R1225 full-duplex transceiver. You get commercial quality and a 
> > complete controller in a package that has more power, and for 
> > less money than the Hamtronics package.
> > 73, Eric Lemmon WB6FLY
> 
> What... no mention of Kenwood? A TKR-720 or the even newer TKR-750? 
> 
> cheers, 
> skipp
>

[Repeater-Builder] Motorola R1225 versus Kenwood TKR-750

[Eric Lemmon]

Skipp,

The Kenwood TKR-750 is a complete, packaged repeater with an integral power
supply and fan in a 3U rackmount cabinet.  It is roughly equivalent to the
Motorola RKR-1225, which is the rackmount version of the desktop GR-1225
repeater.  I tuned and programmed a TKR-750 for a local radio club, and I
agree that it is a fine radio.

The R1225 is just the radio that is inside of a GR-1225 or RKR-1225, and can
be bought new for about $900 in the 50 watt version.  It can handle close to
100% duty cycle when run at 25 watts, making it ideal for a solar-powered
repeater- and I have one such repeater in service now.

If the transceiver that is inside the TKR-750 can be purchased separately,
it would be comparable to the R1225.

73, Eric Lemmon WB6FLY
 

-Original Message-
From: Repeater-Builder@yahoogroups.com
[mailto:[EMAIL PROTECTED] On Behalf Of skipp025
Sent: Friday, July 13, 2007 10:31 AM
To: Repeater-Builder@yahoogroups.com
Subject: [Repeater-Builder] Re: Hamtronics



> Rather than buy a Hamtronics 2m repeater, I'd go for a Motorola 
> R1225 full-duplex transceiver. You get commercial quality and a 
> complete controller in a package that has more power, and for 
> less money than the Hamtronics package.
> 73, Eric Lemmon WB6FLY

What... no mention of Kenwood? A TKR-720 or the even newer TKR-750? 

cheers, 
skipp

[Repeater-Builder] Re: Hamtronics

[skipp025]

> Ron Wright <[EMAIL PROTECTED]> wrote:

> One of the purposes of a good receiver front end is to keep the 
> LO and any other signals from going back up the antenna from 
> the rcvr.  

Same thing with the tranmitter... when I started out working on 
Spectrum gear I used a remote base to listen to the repeater 1/2 
mile down the ridge even when it wasn't transmitting. 
 
> Ron Wright, N9EE
> 727-376-6575
> MICRO COMPUTER CONCEPTS
> Owner 146.64 repeater Tampa Bay, FL
> No tone, all are welcome.

Ron, 
Again thank you for taking the time to talk with on the phone about 
a month ago while I wired Texas Ed's MSR-2000 to MCC repeater 
controller interface. You get lots of stardust for quickly helping 
me unlock the controller back to default conditions. And your 
controller seems to work pretty well. Ed and his group are very 
happy with the controller performance. 

Not to mention I have a real soft spot for small board computer 
repeater controllers. 

cheers, 
skipp 

RE: RE: [Repeater-Builder] Solar Power

[Eric Lemmon]

Ron,

The SunWize installation instructions specifically warn against grounding
the system (panels, battery, or radio) at more than one point, since to do
so will short out one or more current sensors.  Inasmuch as the metal parts
of the antenna are always grounded for lightning protection, that means that
it is the radio that must have its negative terminal grounded.

There is no reason to ground any other component in the system.  The solar
panel output terminals are always floating with respect to the mounting
frame, for exactly this reason.  The mounting frame can be grounded for
lightning protection.

Solar power is quite pervasive in Europe, particularly in Sweden, Germany,
and Finland- where many solar power components are manufactured.  In some
countries, it is common to ground the positive terminal.  In order to make
such components work in other countries, certain precautions must be taken.
Follow the instructions packed with the charge controller to the letter, and
don't risk damaging an expensive part by assuming that it's okay to ground
the circuit at more than one point.

Most of the troublesome solar-powered repeaters that I know about have
failed for obvious reasons.  One was installed with the solar panel
connected directly to the battery, without a charge controller.  The battery
failed in one year due to overcharging.  Another solar-powered repeater
failed because the owner connected the radio directly to the battery instead
of to the charge controller's load terminals.  In this case, the charge
controller had no way to determine the battery's state of charge.

I could cite several more examples, but I hope I've made my point:  Use a
good quality solar charge controller, and make all wiring exactly per the
instructions packed with it.

73, Eric Lemmon WB6FLY
 

-Original Message-
From: Repeater-Builder@yahoogroups.com
[mailto:[EMAIL PROTECTED] On Behalf Of Ron Wright
Sent: Friday, July 13, 2007 9:24 AM
To: Repeater-Builder@yahoogroups.com
Subject: Re: RE: [Repeater-Builder] Solar Power

Eric,

On the solar panel negative lead could you ground the negative of the
battery, but make sure the solar panel terminals, both pos and neg, are not
grounded??? The solar panel and charger would be floating on their own with
the combination output connected to the battery with the pos to pos and neg
to neg of the battery, but it grounded.

73, ron, n9ee/r

>From: Eric Lemmon <[EMAIL PROTECTED]  >
>Date: 2007/07/13 Fri AM 11:08:10 CDT
>To: Repeater-Builder@yahoogroups.com
 
>Subject: RE: [Repeater-Builder] Solar Power

> 
>Tim,
>
>I have a commercial UHF repeater that has been operating 24/7 on a mountain
>ridge since January 2003. It uses two Siemens 75 watt solar panels in
>parallel, two Concorde 105 AH SLA batteries in parallel, a SunWize Steca
>charge controller, and a Motorola R1225 45 watt radio. A Celwave PD696-1-2
>duplexer feeds a Decibel Products DB408 aluminum dipole antenna.
>
>Perhaps the best advice I can offer is to properly apply the solar power
>components. The solar panel should be large enough supply at least eight
>times the standby current required by the repeater equipment, and the
>battery should be a sealed lead-acid type both for safety and longevity and
>of a capacity sufficient to run the repeater for at least two days with no
>input from the solar panel. Finally, use a commercial solar charge
>controller to manage your power flow. Your load should connect to the
>charge controller and not to the battery. Some charge controllers have
>current sensors in the negative lead, so you may need to ensure that there
>are no connections to ground except at the load circuit. Since the antenna
>cable shield is connected to ground, you cannot ground the negative poles
of
>either the battery or the solar panel.
>
>73, Eric Lemmon WB6FLY
>
>-Original Message-
>From: Repeater-Builder@yahoogroups.com
 
>[mailto:Repeater-Builder@yahoogroups.com
 ] On Behalf Of Tim
>Sent: Thursday, July 12, 2007 6:47 PM
>To: Repeater-Builder@yahoogroups.com
 
>Subject: [Repeater-Builder] Solar Power
>
>I have a site located that I would like to install a 220 Ham Repeater 
>but there is no electrical power. I don't know the first thing about 
>solar power but would like to consider this project for my first solar 
>powered repeater. I would appreciate any links, tips, suggestions, or 
>information about solar power for repeater use. I have looked at a 
>couple of web sites but I know there are hundreds of solar powered 
>sites around the country and I figured that this group would have the 
>experience to point me in the right direction for research or purchase 
>of equipment. If you would like to send off group, [EMAIL PROTECTED]
 
> will 
>get t

Re: [Repeater-Builder] Hamtronics

[skipp025]

I have converted Micors and it's not even close to a free lunch. 
Best I was able to do with a full on 220 micor pa conversion was 
about 20 to 30% of rated power. I also suspect the transistor/devices 
don't perform very well that far above their spec'd range of 
operation. 
s. 


> Ron Wright <[EMAIL PROTECTED]> wrote:
> Eric and all,
>
> On the PA problem has anyone on the board tried using PAs from 
> say Micors or GE Mastr line made for 150 or UHF on 220.  
>
> These often have LPF on their output which can be taken out (don't 
> like to).  Since these amps are wide band they just might move 
> up/down to 220.  Some do have tuning like in the Micor so would be 
> little harder, but GEs only have a pot for adjusting drive/output 
> and some with SWR shutdown circuit adjustments.
>
> 73, ron, n9ee/r

[Repeater-Builder] Re: Hamtronics

[skipp025]

> "Eric Lemmon" <[EMAIL PROTECTED]> wrote:
> Gene,
> I recently converted a UHF Hamtronics REP-200 repeater to 220 MHz 
> by changing the receiver, exciter, and power amplifier to the 220 
> versions.  It is working well, and has not had any problems. 
>
> The only reason why I did this was because neither Motorola nor 
> Kenwood offered a commercial-grade repeater for the 220 Amateur 
> band.

I ran into the same problems... the major choices available at the 
time are/were Spectrum, Hamtronics & Maggiore of which I own all of 
the mentioned. Credit where due the Maggiore stuff has been install 
and forget it so far... working 100% as received. 

Depending on who, what, why and where... I would also consider some 
of the GE and Motorola conversion paths for quality performance at 
a very good dollar value. Scott and Kevin offer some really nice 
conversion products for the home brew people. 

> In my opinion, the major deficiency in Hamtronics repeaters is the
> bare-bones power amplifier.  These units have no power regulation 
> and no high-VSWR protection. 

Keeping in mind the cost of a Hamtronics PA vs something by TPL, TE, 
or some of the other amplifier mfgrs... you get what you pay for. Oh 
yeah don't forget Ramsey... 

> I know of two Hamtronics 2m repeaters that suffered blown PAs due 
> to antenna problems.  With no protection against high VSWR,
> the PA transistor smoked.  To prevent that from happening in my 
> "new" 220 repeater, I installed a Telewave single ferrite isolator 
> to maintain a constant impedance load seen by the PA.

It's not hard to build a power control circuit into a Hamtronics PA 
but would it be worth the trouble when you have a circulator? Most 
classic power contrul stages simply roll back the/any driver 
transistor collectory (supply) voltage.  Just depends on what, why 
and how you control the power really. 


> Rather than buy a Hamtronics 2m repeater, I'd go for a Motorola 
> R1225 full-duplex transceiver.  You get commercial quality and a 
> complete controller in a package that has more power, and for 
> less money than the Hamtronics package.
> 73, Eric Lemmon WB6FLY

What... no mention of Kenwood?  A TKR-720 or the even newer TKR-750? 

cheers, 
skipp 

ps: I've added power control to homebrew and Hamtronics kit type 
power amplifiers... if anyone really wanted to talk about it I'm 
happy to share the information. 
s. 

RE: [Repeater-Builder] Solar Power

[rande]

Eric,

Would the sizes you used below for a commercial repeater be the same for a
ham repeater?

Just wondering how the duty-cycle of your commercial repeater usage
compares to a couple of hams ragchewing for hours about the high price of
gas?

Randy
WB0VHB



> Tim,
>
> I have a commercial UHF repeater that has been operating 24/7 on a
> mountain
> ridge since January 2003.  It uses two Siemens 75 watt solar panels in
> parallel, two Concorde 105 AH SLA batteries in parallel, a SunWize Steca
> charge controller, and a Motorola R1225 45 watt radio.  A Celwave
> PD696-1-2
> duplexer feeds a Decibel Products DB408 aluminum dipole antenna.
>
> Perhaps the best advice I can offer is to properly apply the solar power
> components.  The solar panel should be large enough supply at least eight
> times the standby current required by the repeater equipment, and the
> battery should be a sealed lead-acid type both for safety and longevity
> and
> of a capacity sufficient to run the repeater for at least two days with no
> input from the solar panel.  Finally, use a commercial solar charge
> controller to manage your power flow.  Your load should connect to the
> charge controller and not to the battery.  Some charge controllers have
> current sensors in the negative lead, so you may need to ensure that there
> are no connections to ground except at the load circuit.  Since the
> antenna
> cable shield is connected to ground, you cannot ground the negative poles
> of
> either the battery or the solar panel.
>
> 73, Eric Lemmon WB6FLY
>
>

Re: [Repeater-Builder] Mocom 10 info?

[JOHN MACKEY]

Interesting!!

I've been around Moto radios for the last 30 years & never knew that!

-- Original Message --
Received: Fri, 13 Jul 2007 11:33:22 AM CDT
From: Jim <[EMAIL PROTECTED]>
To: Repeater-Builder@yahoogroups.com
Subject: Re: [Repeater-Builder] Mocom 10 info?

> JOHN MACKEY wrote:
> > Actually, I meant to say the 25-50 MHz range.  I think if you look closely
the
> > Mocom's you see in the HB and UHF range are actually Mocom-30, Mocom-35,
&
> > Mocom-70.
> > 
> 
> Nope-there was a Mocom-10 on both bands, but I think Glenn was right, 
> most of them looked like a M-35. There were some, definitely high band 
> at least, that were a VHF version of the LB units you're familiar with.
> And I'm sure there was a UHF version as well. No, they didn't sell well 
> for some reason.
> 
> Wish I still had the price and spec books my father had from back then...
> 
> -- 
> Jim Barbour
> WD8CHL
> 
> 

Re: [Repeater-Builder] Mocom 10 info?

[Steve Kometz]

Yes, there were MOCOM 10's in both VHF hi, and UHF.
  I have had a couple on each band (but its been years)
  I am at this very moment looking at the 1980 Motorola "Communications parts & 
data handbook"
  On the top of page 71 it lists;
  "MOCOM-10" Replacement Parts
 (High Band and UHF)
  The listing is exactly as above.
  Oddly it doesn't mention low band in this edition.

Re: [Repeater-Builder] Re: Hamtronics

[Ron Wright]

Al & all,

One of the purposes of a good receiver front end is to keep the LO and any 
other signals from going back up the antenna from the rcvr.  

In WWII the Germans listen for the Allies receiver LOs.  They knew their 
operating frequency (the freq the rx was tuned to) and knowing the receiver and 
IF they knew the LO freq.  Most receivers at the time had no RF frontend amp so 
the LO when up the coax to the antenna and radiated.  

Think the TV boxes used by Nelson for getting TV ratings does this same 
thing...if they know the LO freq they can determine what channel you are tuned 
to...not necessarily watching.

If a receiver is emitting its LO this at least says the receiver does not have 
much front end filtering.  This is one reason higher freq 1st IFs are used.  
Image rejection is another, hi.  Having a tight front end like a 5 cavity 
helical not only protects a repeater receiver from near by txs, but also 
protects others on the site from your repeater.

73, ron, n9ee/r




>From: Al Wolfe <[EMAIL PROTECTED]>
>Date: 2007/07/13 Fri AM 09:09:59 CDT
>To: Repeater-Builder@yahoogroups.com
>Subject: [Repeater-Builder] Re: Hamtronics

>  
>Interesting report on Newsline this week. (Report 1560, July 6, 2007) 
>Seems the local oscillator of a Hamtronics R901 receiver in Bakersfield, CA 
>was putting out enough 406 Mhz energy to be a problem for NOAA's rescue 
>satellite system on that frequency range.
>
>Might be something to think about. What kind of energy does your 
>repeater receiver emit?
>
>Al, K9SI
> 
>
>


Ron Wright, N9EE
727-376-6575
MICRO COMPUTER CONCEPTS
Owner 146.64 repeater Tampa Bay, FL
No tone, all are welcome.

Re: [Repeater-Builder] looking for parts

[Steve S. Bosshard (NU5D)]

Wacom built their duplexers from aluminum irrigation pipe, seems like 
they used several heavy metals in the electroplating process (outside 
company).  I remember when the EPA shut down the electroplating company 
- dumping chemicals into the Brazos River - Wacom had to send their 
goods to Fort Worth for plating.

Steve

Anyone interested in how the Brazos got is's name?  Steve


Ron Wright wrote:
> Some have built coax, hardline type, duplexers for 6.  When using 7/8" I've 
> been told 1 MHz split is needed.  Some have used 1-5/8" with better success.  
> I have the plans from a site of 5 years ago if interested.  Test data was 
> given.
>
> Thars lots of metal in thar 6 m cans and they aint cheap...$2k is a common 
> price new.  Free from most commerical shops just to get rid of them.
>
> 73, ron, n9ee/r
>
>   
>

-- 
Ham Radio Spoken Here !!!  NU5D EM11
http://www.qrz.com/callsign/NU5D
Nickel Under 5 Dollars

Re: [Repeater-Builder] Mocom 10 info?

[Jim]

JOHN MACKEY wrote:
> Actually, I meant to say the 25-50 MHz range.  I think if you look closely the
> Mocom's you see in the HB and UHF range are actually Mocom-30, Mocom-35, &
> Mocom-70.
> 

Nope-there was a Mocom-10 on both bands, but I think Glenn was right, 
most of them looked like a M-35. There were some, definitely high band 
at least, that were a VHF version of the LB units you're familiar with.
And I'm sure there was a UHF version as well. No, they didn't sell well 
for some reason.

Wish I still had the price and spec books my father had from back then...

-- 
Jim Barbour
WD8CHL

Re: Re: [Repeater-Builder] looking for parts

[Ron Wright]

Some have built coax, hardline type, duplexers for 6.  When using 7/8" I've 
been told 1 MHz split is needed.  Some have used 1-5/8" with better success.  I 
have the plans from a site of 5 years ago if interested.  Test data was given.

Thars lots of metal in thar 6 m cans and they aint cheap...$2k is a common 
price new.  Free from most commerical shops just to get rid of them.

73, ron, n9ee/r



>From: DCFluX <[EMAIL PROTECTED]>
>Date: 2007/07/13 Fri AM 10:29:56 CDT
>To: Repeater-Builder@yahoogroups.com
>Subject: Re: [Repeater-Builder] looking for parts

>  
>There is always the 6 meter heliax duplexer project.
>
>Cheap as far as materials go, but when you get done buying testequipment and 
>add up the labor it may outweigh the cost of the readybuilt unit.
>
>On 7/13/07, Mike Perryman <[EMAIL PROTECTED]> wrote:Best of luck to ya  I 
>have been searching for an affordable 6m duplexer for about 5yrs now...
> 73 
>Mike Perryman 
>www.k5jmp.us   -Original Message-
>From:  Repeater-Builder@yahoogroups.com  [mailto:[EMAIL PROTECTED] Behalf Of   
>ke7hgc
>Sent: Thursday, July 12, 2007 7:30 PM
>To:  Repeater-Builder@yahoogroups.com
>Subject: [Repeater-Builder] looking   for parts
>
>
>Good evening all, I'm looking for a set of 4 cavities for 6 meters for   
>a project anyone got a set in their way?   thanks,Larry/ke7hgc
>
>
>


Ron Wright, N9EE
727-376-6575
MICRO COMPUTER CONCEPTS
Owner 146.64 repeater Tampa Bay, FL
No tone, all are welcome.

Re: RE: [Repeater-Builder] Solar Power

[Ron Wright]

Eric,

On the solar panel negative lead could you ground the negative of the battery, 
but make sure the solar panel terminals, both pos and neg, are not grounded???  
The solar panel and charger would be floating on their own with the combination 
output connected to the battery with the pos to pos and neg to neg of the 
battery, but it grounded.

73, ron, n9ee/r




>From: Eric Lemmon <[EMAIL PROTECTED]>
>Date: 2007/07/13 Fri AM 11:08:10 CDT
>To: Repeater-Builder@yahoogroups.com
>Subject: RE: [Repeater-Builder] Solar Power

>  
>Tim,
>
>I have a commercial UHF repeater that has been operating 24/7 on a mountain
>ridge since January 2003.  It uses two Siemens 75 watt solar panels in
>parallel, two Concorde 105 AH SLA batteries in parallel, a SunWize Steca
>charge controller, and a Motorola R1225 45 watt radio.  A Celwave PD696-1-2
>duplexer feeds a Decibel Products DB408 aluminum dipole antenna.
>
>Perhaps the best advice I can offer is to properly apply the solar power
>components.  The solar panel should be large enough supply at least eight
>times the standby current required by the repeater equipment, and the
>battery should be a sealed lead-acid type both for safety and longevity and
>of a capacity sufficient to run the repeater for at least two days with no
>input from the solar panel.  Finally, use a commercial solar charge
>controller to manage your power flow.  Your load should connect to the
>charge controller and not to the battery.  Some charge controllers have
>current sensors in the negative lead, so you may need to ensure that there
>are no connections to ground except at the load circuit.  Since the antenna
>cable shield is connected to ground, you cannot ground the negative poles of
>either the battery or the solar panel.
>
>73, Eric Lemmon WB6FLY
>
>-Original Message-
>From: Repeater-Builder@yahoogroups.com
>[mailto:[EMAIL PROTECTED] On Behalf Of Tim
>Sent: Thursday, July 12, 2007 6:47 PM
>To: Repeater-Builder@yahoogroups.com
>Subject: [Repeater-Builder] Solar Power
>
>I have a site located that I would like to install a 220 Ham Repeater 
>but there is no electrical power. I don't know the first thing about 
>solar power but would like to consider this project for my first solar 
>powered repeater. I would appreciate any links, tips, suggestions, or 
>information about solar power for repeater use. I have looked at a 
>couple of web sites but I know there are hundreds of solar powered 
>sites around the country and I figured that this group would have the 
>experience to point me in the right direction for research or purchase 
>of equipment. If you would like to send off group, [EMAIL PROTECTED]
>  will 
>get to me. Thanks in advance for the help.
>
>Tim, KK4WH
>
>


Ron Wright, N9EE
727-376-6575
MICRO COMPUTER CONCEPTS
Owner 146.64 repeater Tampa Bay, FL
No tone, all are welcome.

Re: [Repeater-Builder] Mocom 10 info?

[JOHN MACKEY]

Actually, I meant to say the 25-50 MHz range.  I think if you look closely the
Mocom's you see in the HB and UHF range are actually Mocom-30, Mocom-35, &
Mocom-70.

-- Original Message --
Received: Fri, 13 Jul 2007 08:06:53 AM CDT
From: Jim <[EMAIL PROTECTED]>
To: Repeater-Builder@yahoogroups.com
Subject: Re: [Repeater-Builder] Mocom 10 info?

> JOHN MACKEY wrote:
> > I thought that Mocom-10's were ONLY in the 35-50 Mhz range.
> > 
> 
> Nope-LB, HB, and UHF. UHF wasn't too common, at that time UHF was mostly 
> Mocom-35's and the Industrial Disaster, er, Dispatcher that used HT200 
> boards with a small PA.
> 
> -- 
> Jim Barbour
> WD8CHL
> 
> 

RE: [Repeater-Builder] Solar Power

[Eric Lemmon]

Tim,

I have a commercial UHF repeater that has been operating 24/7 on a mountain
ridge since January 2003.  It uses two Siemens 75 watt solar panels in
parallel, two Concorde 105 AH SLA batteries in parallel, a SunWize Steca
charge controller, and a Motorola R1225 45 watt radio.  A Celwave PD696-1-2
duplexer feeds a Decibel Products DB408 aluminum dipole antenna.

Perhaps the best advice I can offer is to properly apply the solar power
components.  The solar panel should be large enough supply at least eight
times the standby current required by the repeater equipment, and the
battery should be a sealed lead-acid type both for safety and longevity and
of a capacity sufficient to run the repeater for at least two days with no
input from the solar panel.  Finally, use a commercial solar charge
controller to manage your power flow.  Your load should connect to the
charge controller and not to the battery.  Some charge controllers have
current sensors in the negative lead, so you may need to ensure that there
are no connections to ground except at the load circuit.  Since the antenna
cable shield is connected to ground, you cannot ground the negative poles of
either the battery or the solar panel.

73, Eric Lemmon WB6FLY


 

-Original Message-
From: Repeater-Builder@yahoogroups.com
[mailto:[EMAIL PROTECTED] On Behalf Of Tim
Sent: Thursday, July 12, 2007 6:47 PM
To: Repeater-Builder@yahoogroups.com
Subject: [Repeater-Builder] Solar Power

I have a site located that I would like to install a 220 Ham Repeater 
but there is no electrical power. I don't know the first thing about 
solar power but would like to consider this project for my first solar 
powered repeater. I would appreciate any links, tips, suggestions, or 
information about solar power for repeater use. I have looked at a 
couple of web sites but I know there are hundreds of solar powered 
sites around the country and I figured that this group would have the 
experience to point me in the right direction for research or purchase 
of equipment. If you would like to send off group, [EMAIL PROTECTED]
  will 
get to me. Thanks in advance for the help.

Tim, KK4WH

Re: [Repeater-Builder] looking for parts

[Chuck Kelsey]

There was a two-way surplus shop somewhere in Texas that had some. I do not 
recall their name. Shipping would be a bit high.

Otherwise, better start thinking about making them. They are scarce.

Chuck
WB2EDV




- Original Message - 
From: "ke7hgc" <[EMAIL PROTECTED]>
To: 
Sent: Thursday, July 12, 2007 7:29 PM
Subject: [Repeater-Builder] looking for parts


> Good evening all, I'm looking for a set of 4 cavities for 6 meters for
> a project anyone got a set in their way? thanks,Larry/ke7hgc
>
>
>
>
>
>
> Yahoo! Groups Links
>
>
>
> 

Re: [Repeater-Builder] looking for parts

[DCFluX]

There is always the 6 meter heliax duplexer project.

Cheap as far as materials go, but when you get done buying test equipment
and add up the labor it may outweigh the cost of the ready built unit.

On 7/13/07, Mike Perryman <[EMAIL PROTECTED]> wrote:


 Best of luck to ya  I have been searching for an affordable 6m
duplexer for about 5yrs now...

 73
Mike Perryman
*www.k5jmp.us*

-Original Message-
*From:* Repeater-Builder@yahoogroups.com [mailto:
[EMAIL PROTECTED] Behalf Of *ke7hgc
*Sent:* Thursday, July 12, 2007 7:30 PM
*To:* Repeater-Builder@yahoogroups.com
*Subject:* [Repeater-Builder] looking for parts

 Good evening all, I'm looking for a set of 4 cavities for 6 meters for
a project anyone got a set in their way? thanks,Larry/ke7hgc

RE: [Repeater-Builder] Motorola Quantar and Quantro Repeater Questions.

[Eric Lemmon]

It is difficult to give you advice with such vague descriptions.  Please
provide the model and/or FRU numbers for each component in your station,
including the chassis and power supply.  It is possible that there is an
incompatibility issue at work here.  Since the Quantro/Quantar uses a
digital SPI buss to link each component, the station control module (SCM)
assumes that certain modules are connected before the power-up diagnostic
routine will pass.  In particular, certain power supplies will only work
with certain PAs.  I suspect that may be a factor in your case.

73, Eric Lemmon WB6FLY
 

-Original Message-
From: Repeater-Builder@yahoogroups.com
[mailto:[EMAIL PROTECTED] On Behalf Of ajbradio
Sent: Thursday, July 12, 2007 12:54 PM
To: Repeater-Builder@yahoogroups.com
Subject: [Repeater-Builder] Motorola Quantar and Quantro Repeater Questions.

Hi everyone. Don't post often but I ran into a slight problem and
can't seem to find an answer and thought that I'd ask in the group of
some of the Quantar technicians for some guidance. 

I have what I would call a partial Quantro which is pretty much
complete minus the power supply and final amplifier section. I also
have a Quantar chassis, the gold colored one, with a power supply. 
What I've done is taken all the components out of the Quantro chassis
and placed them into the Quantar chassis. I changed out the firmware
to a Quantar simm I had as well in the SCM. Now, when I power it up,
I immediately get a power supply failure LED coming on. If I remove
the Quantro PA unit, which looks to be more like a small low power
driver and not your typical 100 watt PA assy., everything fires up and
starts proving out but of course fails because now there is no PA. 
So, my question is should this PA assy., which I think is maybe 5 to
25 watts max as it has no real cooling fins, work in the Quantar
chassis? Is the PA for the Quantro I have majorily different than a
Quantar? Is it possible there is an incompatibility between a Quantar
modules backplane board and that of a Quantro? Or, do I maybe just
have a dead and shorted out low power PA module? The exciter shold be
okay as I don't get a fault on it. This is a UHF low split and I'd
like to see if I can get it working somehow. ANy help would be
greatly appreciated.

Thanks
AJ

RE: [Repeater-Builder] looking for parts

[Mike Perryman]

Best of luck to ya  I have been searching for an affordable 6m duplexer
for about 5yrs now...
 73
Mike Perryman
www.k5jmp.us

  -Original Message-
  From: Repeater-Builder@yahoogroups.com
[mailto:[EMAIL PROTECTED] Behalf Of ke7hgc
  Sent: Thursday, July 12, 2007 7:30 PM
  To: Repeater-Builder@yahoogroups.com
  Subject: [Repeater-Builder] looking for parts


  Good evening all, I'm looking for a set of 4 cavities for 6 meters for
  a project anyone got a set in their way? thanks,Larry/ke7hgc



  

[Repeater-Builder] Motorola Quantar and Quantro Repeater Questions.

[ajbradio]

Hi everyone.  Don't post often but I ran into a slight problem and
can't seem to find an answer and thought that I'd ask in the group of
some of the Quantar technicians for some guidance.  

I have what I would call a partial Quantro which is pretty much
complete minus the power supply and final amplifier section.  I also
have a Quantar chassis, the gold colored one, with a power supply. 
What I've done is taken all the components out of the Quantro chassis
and placed them into the Quantar chassis.  I changed out the firmware
to a Quantar simm I had as well in the SCM.  Now, when I power it up,
I immediately get a power supply failure LED coming on.  If I remove
the Quantro PA unit, which looks to be more like a small low power
driver and not your typical 100 watt PA assy., everything fires up and
starts proving out but of course fails because now there is no PA. 
So, my question is should this PA assy., which I think is maybe 5 to
25 watts max as it has no real cooling fins, work in the Quantar
chassis?  Is the PA for the Quantro I have majorily different than a
Quantar?  Is it possible there is an incompatibility between a Quantar
modules backplane board and that of a Quantro?  Or, do I maybe just
have a dead and shorted out low power PA module?  The exciter shold be
okay as I don't get a fault on it.  This is a UHF low split and I'd
like to see if I can get it working somehow.  ANy help would be
greatly appreciated.

Thanks
AJ

[Repeater-Builder] Solar Power

[Tim]

I have a site located that I would like to install a 220 Ham Repeater 
but there is no electrical power. I don't know the first thing about 
solar power but would like to consider this project for my first solar 
powered repeater. I would appreciate any links, tips, suggestions, or 
information about solar power for repeater use. I have looked at a 
couple of web sites but I know there are hundreds of solar powered 
sites around the country and I figured that this group would have the 
experience to point me in the right direction for research or purchase 
of equipment. If you would like to send off group, [EMAIL PROTECTED] will 
get to me. Thanks in advance for the help.

Tim, KK4WH

[Repeater-Builder] looking for parts

[ke7hgc]

Good evening all, I'm looking for a set of 4 cavities for 6 meters for 
a project anyone got a set in their way? thanks,Larry/ke7hgc

[Repeater-Builder] Re: Hamtronics

[Al Wolfe]

Interesting report on Newsline this week. (Report 1560, July 6, 2007) 
Seems the local oscillator of a Hamtronics R901 receiver in Bakersfield, CA 
was putting out enough 406 Mhz energy to be a problem for NOAA's rescue 
satellite system on that frequency range.

Might be something to think about. What kind of energy does your 
repeater receiver emit?

Al, K9SI
 

Re: [Repeater-Builder] Mocom 10 info?

[Jim]

JOHN MACKEY wrote:
> I thought that Mocom-10's were ONLY in the 35-50 Mhz range.
> 

Nope-LB, HB, and UHF. UHF wasn't too common, at that time UHF was mostly 
Mocom-35's and the Industrial Disaster, er, Dispatcher that used HT200 
boards with a small PA.

-- 
Jim Barbour
WD8CHL

Re: [Repeater-Builder] Mocom 10 info?

[w8ak]

I have a UHF Mocom 10. Looks like a cheapened Mocom 35. Nothing like the  
lowband radio. Not sure if it was also made in VHF
 
Glenn
W8AK



** Get a sneak peak of the all-new AOL at 
http://discover.aol.com/memed/aolcom30tour

Re: Re: Re: [Repeater-Builder] GE MASTR II and RC-1000V

[Ron Wright]

Mike,

Thanks for the info.  The writer of the posting did excellent job...must have 
been from a number of people for lots of info there.

I buy about 50-60 TS64DSs/yr and each comes with a very good data sheet with 
good data on each wire.  The TS64 offers many features some of which are not 
listed in the data sheet.

The only problem I see with decoders like the TS64 using a LPF followed by a 
CPU to count/period average the CTCSS tone is multi-tone signals.  Have not 
tried, but would think 2 tones would interfer with the decoding.  Unlike the 
reeds or maybe the older TS32.

Using the TS64's CPU it let Com Spec easily expand to a community repeater 
controller like their TS3200 since the CPU could detect any tone.  In the TS64 
it was set up to only give logic output if tone matched the tone selected by 
the dip switches, but still the CPU knew whatever tone received.  Another 
example of the power of a CPU with software.

73, ron, n9ee/r



>From: Mike Morris <[EMAIL PROTECTED]>
>Date: 2007/07/12 Thu PM 04:04:23 CDT
>To: Repeater-Builder@yahoogroups.com
>Subject: Re: Re: [Repeater-Builder] GE MASTR II and RC-1000V

>  
>At 04:29 AM 07/12/07, you wrote:
>>Clyde,
>>
>>On the TS64 it is excellent decoder/encoder.  It is pretty easy to 
>>get going as long as you make sure you do a few things.
>>
>>1. feed discreminator audio into yellow wire.
>>2. ground HANGUP violet wire or it will stay in decode mode all the time.
>>3. use MUTE white wire for decode logic output.  As received it will 
>>go high (open collector) for decode.  If you need low install jumper 
>>JP7.  This inverts the output logic.
>>4. leave gray and blue wire NOT connected.
>>
>>For encode ground PTT input, orange wire.  This controls encode 
>>on/off.  Ground turns on.  Also the encode tone signals starts and 
>>stops at zero crossing preventing any click when turning on/off.  If 
>>have control that will control encode timing can act like the 
>>Motorola reverse burst turning off the tone before repeater droping 
>>or for other signaling uses.
>>
>>The TS64 does a lot and has some good features.  Comm Spec did a 
>>good job.  However, don't know of anyone using the extra 32 tones, hi.
>>
>>73, ron, n9ee/r
>
>Ron's wire chart is on the 
>
>page and there is some additional detail included (like what the gray 
>and blue wires are for).
>
>Mike WA6ILQ
>
>


Ron Wright, N9EE
727-376-6575
MICRO COMPUTER CONCEPTS
Owner 146.64 repeater Tampa Bay, FL
No tone, all are welcome.

Re: RE: [Repeater-Builder] Hamtronics

[Ron Wright]

Eric and all,

On the PA problem has anyone on the board tried using PAs from say Micors or GE 
Mastr line made for 150 or UHF on 220.  

These often have LPF on their output which can be taken out (don't like to).  
Since these amps are wide band they just might move up/down to 220.  Some do 
have tuning like in the Micor so would be little harder, but GEs only have a 
pot for adjusting drive/output and some with SWR shutdown circuit adjustments.

73, ron, n9ee/r




>From: Eric Lemmon <[EMAIL PROTECTED]>
>Date: 2007/07/12 Thu PM 10:21:34 CDT
>To: Repeater-Builder@yahoogroups.com
>Subject: RE: [Repeater-Builder] Hamtronics

>  
>Gene,
>
>I recently converted a UHF Hamtronics REP-200 repeater to 220 MHz by
>changing the receiver, exciter, and power amplifier to the 220 versions.  It
>is working well, and has not had any problems.  The only reason why I did
>this was because neither Motorola nor Kenwood offered a commercial-grade
>repeater for the 220 Amateur band.
>
>In my opinion, the major deficiency in Hamtronics repeaters is the
>bare-bones power amplifier.  These units have no power regulation and no
>high-VSWR protection.  I know of two Hamtronics 2m repeaters that suffered
>blown PAs due to antenna problems.  With no protection against high VSWR,
>the PA transistor smoked.  To prevent that from happening in my "new" 220
>repeater, I installed a Telewave single ferrite isolator to maintain a
>constant impedance load seen by the PA.
>
>Rather than buy a Hamtronics 2m repeater, I'd go for a Motorola R1225
>full-duplex transceiver.  You get commercial quality and a complete
>controller in a package that has more power, and for less money than the
>Hamtronics package.
>
>73, Eric Lemmon WB6FLY
>
>-Original Message-
>From: Repeater-Builder@yahoogroups.com
>[mailto:[EMAIL PROTECTED] On Behalf Of [EMAIL PROTECTED]
>Sent: Wednesday, July 11, 2007 10:28 PM
>To: Repeater-Builder@yahoogroups.com
>Subject: [Repeater-Builder] Hamtronics
>
>Anyone with experience with the Hamtronics 200 or 200T repeater please
>advise of your satisfaction rating/comments. . 
>
>We are considering one for the local ARES standby repeate and your inputs
>are important.. 
>
>Thanks in advance.
>
>Gene
>
>


Ron Wright, N9EE
727-376-6575
MICRO COMPUTER CONCEPTS
Owner 146.64 repeater Tampa Bay, FL
No tone, all are welcome.

Re: Re: [Repeater-Builder] Mocom 10 info?

[Ron Wright]

I have a mocom 10 in the base stn style crystaled on 29.6, but what band it was 
made for I cannot say.

What other bands they were made for I do not know.

73, ron, n9ee/r



>From: JOHN MACKEY <[EMAIL PROTECTED]>
>Date: 2007/07/12 Thu PM 11:58:52 CDT
>To: Repeater-Builder@yahoogroups.com
>Subject: Re: [Repeater-Builder] Mocom 10 info?

>  
>I thought that Mocom-10's were ONLY in the 35-50 Mhz range.
>
>-- Original Message --
>Received: Thu, 12 Jul 2007 11:07:37 PM CDT
>From: Glenn Little WB4UIV <[EMAIL PROTECTED]>
>To: Repeater-Builder@yahoogroups.com
>Subject: Re: [Repeater-Builder] Mocom 10 info?
>
>> The TLD tells me it is VHF (132-174 MHz) but I cannot tell you if it is 
>> 132-150.8, 150.8-162 or 162-174. I may be off on the 162, but the split is 
>> about there. The 2 in 8652 tells me that it is probably in the second 
>> split, 150.8-162.
>> 
>> Look at the frequencies on the channel elements.
>> 
>> 73
>> Glenn
>> WB4UIV
>> 
>> 
>> 
>> At 10:43 PM 07/12/07, you wrote:
>> >Can anybody ID what band and split a Mocom 10 with chassis model TLD8652A2
>> >is?  Apparently the model number plate was on the case (missing), not the
>> >heatsink, so the seller can't ID it.
>> >
>> >
>> >
>> >
>> >
>> >
>> >
>> >
>> >Yahoo! Groups Links
>> >
>> >
>> >
>> 
>> 
>> 
>
>


Ron Wright, N9EE
727-376-6575
MICRO COMPUTER CONCEPTS
Owner 146.64 repeater Tampa Bay, FL
No tone, all are welcome.