[Repeater-Builder] Re: Micor 800MHz Base Stations?

[skipp025]

Yep... right on the money Joe... 

And one other thing to mention. If you find one of the monster 
pa units out there... don't even try to waste your time with it 
unless you get the matching monster power supply (a "real 
cluster %$**) and the proper service manual (in most cases). 

If you don't have the power supply... you'll need to spend a 
bit of time with us over at the yahoo rfamplifiers group: 
http://groups.yahoo.com/group/rfamplifiers/  
 unless you're very motivated. 

cheers, 
skipp 

> Joe Montierth <[EMAIL PROTECTED]> wrote:
> Even if a solid state TX at 100 watts only had the
> spurious and harmonics down 20dB, that would only be 1
> watt of additional heat generated.
> 
> Most transmitters have such things reduced by at least
> 60dB, which would make the additional heat generated
> at something less than a milliwatt, hardly worth
> mentioning. The heat comes from the loss of the
> device. A 1 dB loss will introduce about 20 watts of
> heat from a 100 watt TX.
> 
> Joe
> 

[Repeater-Builder] Re: Micor 800MHz Base Stations?

[skipp025]

If you worry about the type pa causing duplexer heating... then 
you have the wrong type of duplexer. It's not really going to be  
a problem... unless something in the equipment is marginal, which 
is not normally the case.  ... especially the type of duplexer as 
a general rule.
s. 

> Kris Kirby <[EMAIL PROTECTED]> wrote:
> On Thu, 14 Dec 2006, Mike Perryman wrote:
> > I have no idea about a tube version...  but I have a Micor 75W solid 
> > state PA for 800 if you are interested lemme know..
> 
> Not really. What I'm thinking is that a tube-type PA would have less 
> noise generated as a result of amplification which would mean less 
> heat expended in the duplexers and harmonic filters.

[Repeater-Builder] Re: Micor 800MHz Base Stations?

[skipp025]

> Kris Kirby <[EMAIL PROTECTED]> wrote:
> Did Motorola ever make a Micor or earlier vintage base station 
> with a tube PA on 800MHz?

Yes, the pa assembly was actually made for Motorhead by Eimac and 
it uses a triode like the 3cx400u-a7 type tube (trying to remember 
the actual tube number). 

We had a lot of problems with the early operation units because 
people didn't know how to tune them, the blowers failed and the 
heater voltage was always set wrong (way to high).  

Sometimes it took Motorola a serious length of time for the
engineering folks to source a known circuit/equipment problem. 
But when high dollar tubes were going bad in units less than a 
year old you can bet they woke up and sourced the problems pretty 
fast. I have a factory internal memo about the results of the 
premi tube failure problem and the fix, which was included in 
manual updates and/or updated manuals. 

The PA Assemblies are often seen on ebay without the monster 
matching power supply.  There are also 900MHz units but much 
harder to find and yes... with lot of work the 800 unit will 
go up to 900 MHz. 

cheers, 
skipp 

[Repeater-Builder] Re: HN462732g E prom

[skipp025]

No problama'   if you want the data sheet search google under the 
full part number less the trailing "g" and you'll find the page with 
a pdf copy of the original data sheet after you file past all the 
over kill sharky "chipdocs" and "datasheets" web sites that try to 
charge money for what is otherwise free on the web. I'm sure they pay 
google to be first in every possible search result. 

cheers, 
skipp  

> "Greg" <[EMAIL PROTECTED]> wrote:
> Thanks for reply Skip, 25V did seem to work best.
> I ran the chips programmed @21V, and they worked as well as those 
> programmed @ 25V, just slower programming got my attention as I did not 
> have specs for chip.
> 32k shouldn't take long to download
> Maybe the software has a little logic to it, to make up for errors on 
> programming voltage.
>

[Repeater-Builder] Re: HN462732g E prom

[Greg]

Thanks for reply Skip, 25V did seem to work best.
I ran the chips programmed @21V, and they worked as well as those 
programmed @ 25V, just slower programming got my attention as I did not 
have specs for chip.
32k shouldn't take long to download
Maybe the software has a little logic to it, to make up for errors on 
programming voltage.

Re: [Repeater-Builder] tripp lite pr-25

[n . mckie]

  
   In another life, 20 years ago or so, my employer was using 
  Tripp-Lite yellow domed strobe lights for their construction vehicles.  
 
   One day, I was visiting the central garage and noticed they had 5 
  Tripp-Lite strobes on a bench.  I asked the foreman why, his reply 
  was because they had crapped out and hadn't been tossed out yet.  
 
   I asked him if I could take them back to my shop and he replied 'Yes!' 
 
   Fast forward a bit ... I analyzed the problem of each strobe light, 
  determined there was an early version and a later version.  Quickly, I 
  discovered the problem of each strobe light, used the unrepairable 
  units parts to fix the repairable ones and returned the repaired units 
  to the central shop a couple of hours later.  From then on, I got all the 
  strobe lights for repair. 
 
   I didn't need to contact the manufacturer as the transistors used were 
  fairly obvious from a bit of study (Motorola) and the rest of the parts 
  were available from the dead strobe units or the distributor. (flash tubes) 
 
   You might want to study the internal workings of your power supply in 
  case the problem is obvious. 
 
   Good luck with your project, 
   Neil - WA6KLA 
 



- Original Message -
From: DCFluX <[EMAIL PROTECTED]>
Date: Thursday, December 14, 2006 5:45 pm
Subject: Re: [Repeater-Builder] tripp lite pr-25

> Tripp lite does not allow there schematics out in the public, making
> repair of their power supplys fairly difficult. When I called asking
> for one they told me that they would be glad to sell me another PR-40
> but couldn't offer a schematic for the one I had sitting in front of
> my blowd up. Repair involved the shotgun method of replacing every
> semiconductor component on the board. For future reference I would
> advise anyone to pony up the extra money and buy an Astron, at least
> those are user servicable.
> 
> On 12/14/06, Ian Miller <[EMAIL PROTECTED]> wrote:
> > Hi all
> > Looking for a schematic for a PR-25 tripp lite power supply.
> > Can anyone help?
> > Contact me off list at
> > va2ir at securenet dot net
> > Thanks
> > 73
> > Ian
>

Re: [Repeater-Builder] Newbie Information Time - Mystery Signal

[w5zit]

In addition to Neil's comment - you would screw up the APRS operation 
if you do not listen and prevent your own APRS broadcast from going out 
during another APRS transmission.  You could key up on top of the 
ongoing transmission and both your own and the other packets would be 
QRMed.

73 - Jim  W5ZIT

-Original Message-
From: [EMAIL PROTECTED]
To: Repeater-Builder@yahoogroups.com
Sent: Thu, 14 Dec 2006 10:34 AM
Subject: [Repeater-Builder] Newbie Information Time - Mystery Signal


In my opinion, is a slight flaw in the voice operation on
144.39 MHz below ... the FCC requires you to monitor the
frequency in a non-CTCSS mode prior to transmitting.
And, if you have your 144.39 MHz receiver locked up on
CTCSS decode, your receiver won't hear the packet
operations ...

Thank you for your time,
Neil McKie - WA6KLA


- Original Message -
From: Max Slover <[EMAIL PROTECTED]>
Date: Wednesday, December 13, 2006 4:58 pm
Subject: Re: [Repeater-Builder] Mystery Signal

> In case I confused anybody, this is what I am refering
> to with APRS and a 100hz tone ---
>
> VOICE ALERT: This simply means that you do not turn
> the audio down on
> 144.39, but instead leave it at high volume and then
> simply set CTCSS
> tone 100 to mute the speaker. This way, you dont hear
> any packets, but
> ANYONE can call you with VOICE on 144.39 to alert you
> by using PL 100.
> You will rarely use this, and only use it to tell
> someone to QSY to another
> voice channel, but it is one way of assuring that
> ANYONE running APRS in
> simplex range of you can ALWAYS be contacted with a
> voice call...
>
> You wont hear any packets except maybe one or two
> when another VOICE-
> ALERT mobile is in range (about 3 miles or so). But
> even then, he is only
> beaconing once every 2 minutes and so it is not
> bothersome at all..
> In fact, it is nice to hear when someone is nearby!
> Its like a free radar
> for other mobile APRS operators that are in simplex
> range AND listening.
>
> ---
>
> --- Max Slover <[EMAIL PROTECTED]> wrote:
>
> > Doh, this just hit me. It would most definitely be
> > an
> > APRS setup due to the 100hz subtone. In APRS you set
> > the subtone to 100 so you can do voice alert. Man,
> > why
> > didn't I think of that part when this was first
> > mentioned.
> >
> > Sorry for being a bit late on that but I figured I'd
> > toss my 2 cents on this.
> >
> > Max...
>
>
> Public Information Officer -- St. Louis & Suburban Radio Club
> K0AZV - Amateur
> WPWH-650 GMRS
> St. Louis County ARES
> St. Ann MO EM48tr
>
>
>
>
>
> Yahoo! Groups Links
>
>
>
>






Check Out the new free AIM(R) Mail -- 2 GB of storage and 
industry-leading spam and email virus protection.

Re: [Repeater-Builder] tripp lite pr-25

[DCFluX]

Tripp lite does not allow there schematics out in the public, making
repair of their power supplys fairly difficult. When I called asking
for one they told me that they would be glad to sell me another PR-40
but couldn't offer a schematic for the one I had sitting in front of
my blowd up. Repair involved the shotgun method of replacing every
semiconductor component on the board. For future reference I would
advise anyone to pony up the extra money and buy an Astron, at least
those are user servicable.

On 12/14/06, Ian Miller <[EMAIL PROTECTED]> wrote:
> Hi all
>
> Looking for a schematic for a PR-25 tripp lite power supply.
>
> Can anyone help?
>
> Contact me off list at
>
> va2ir at securenet dot net
>
> Thanks
>
> 73
> Ian
>
>
>
>
>
>
> Yahoo! Groups Links
>
>
>
>

Re: [Repeater-Builder] Newbie Information Time - Mystery Signal

[Bob Dengler]

At 12/14/2006 08:34 AM, you wrote:
>
>   In my opinion, is a slight flaw in the voice operation on
>   144.39 MHz below ... the FCC requires you to monitor the
>   frequency in a non-CTCSS mode prior to transmitting.

Not quite.  The FCC requires you to make sure the frequency is not in use 
before TXing, the idea being you don't interfere with communications in 
progress on said frequency.  Packet, by design, automatically monitors the 
frequency so as to minimize "collisions".  If on occasion you accidentally 
stomp on a packet, no biggie: it automatically retries a few seconds 
later.  So occasional CTCSS-protected voice transmissions on 144.39 
wouldn't really be a problem, although an extended rag-chew would be.

Bob NO6B

[Repeater-Builder] tripp lite pr-25

[Ian Miller]

Hi all

Looking for a schematic for a PR-25 tripp lite power supply.

Can anyone help?

Contact me off list at 

va2ir at securenet dot net

Thanks

73
Ian

RE: [Repeater-Builder] Micor 800MHz Base Stations?

[Joe Montierth]

--- Kris Kirby <[EMAIL PROTECTED]> wrote:

> On Thu, 14 Dec 2006, Mike Perryman wrote:
> > I have no idea about a tube version...  but I have
> a Micor 75W solid 
> > state PA for 800 if you are interested lemme
> know..
> 
> Not really. What I'm thinking is that a tube-type PA
> would have less 
> noise generated as a result of amplification which
> would mean less heat 
> expended in the duplexers and harmonic filters.
> 
> --
> Kris Kirby
> <[EMAIL PROTECTED]>
> 
Even if a solid state TX at 100 watts only had the
spurious and harmonics down 20dB, that would only be 1
watt of additional heat generated.

Most transmitters have such things reduced by at least
60dB, which would make the additional heat generated
at something less than a milliwatt, hardly worth
mentioning. The heat comes from the loss of the
device. A 1 dB loss will introduce about 20 watts of
heat from a 100 watt TX.

Joe



 

Do you Yahoo!?
Everyone is raving about the all-new Yahoo! Mail beta.
http://new.mail.yahoo.com

RE: [Repeater-Builder] Micor 800MHz Base Stations?

[Paul Finch]

Yes they did, I think they all had tube PA's at the start, well except
Quintron.

Paul


-Original Message-
From: Repeater-Builder@yahoogroups.com
[mailto:[EMAIL PROTECTED] On Behalf Of Mike Perryman
Sent: Thursday, December 14, 2006 4:04 PM
To: Repeater-Builder@yahoogroups.com
Subject: RE: [Repeater-Builder] Micor 800MHz Base Stations?

Kris,
I have no idea about a tube version...  but I have a Micor 75W solid state
PA for 800 if you are interested lemme know..
 73
Mike Perryman
www.k5jmp.us



-Original Message-
From: Repeater-Builder@yahoogroups.com
[mailto:[EMAIL PROTECTED] Behalf Of Kris Kirby
Sent: Thursday, December 14, 2006 4:48 PM
To: Repeater-Builder@yahoogroups.com
Subject: [Repeater-Builder] Micor 800MHz Base Stations?



Did Motorola ever make a Micor or earlier vintage base station with a
tube PA on 800MHz?

--
Kris Kirby
<[EMAIL PROTECTED]>





Yahoo! Groups Links








 
Yahoo! Groups Links

RE: [Repeater-Builder] Micor 800MHz Base Stations?

[Kris Kirby]

On Thu, 14 Dec 2006, Mike Perryman wrote:
> I have no idea about a tube version...  but I have a Micor 75W solid 
> state PA for 800 if you are interested lemme know..

Not really. What I'm thinking is that a tube-type PA would have less 
noise generated as a result of amplification which would mean less heat 
expended in the duplexers and harmonic filters.

--
Kris Kirby
<[EMAIL PROTECTED]>

RE: [Repeater-Builder] Micor 800MHz Base Stations?

[Mike Perryman]

Kris,
I have no idea about a tube version...  but I have a Micor 75W solid state
PA for 800 if you are interested lemme know..
 73
Mike Perryman
www.k5jmp.us



-Original Message-
From: Repeater-Builder@yahoogroups.com
[mailto:[EMAIL PROTECTED] Behalf Of Kris Kirby
Sent: Thursday, December 14, 2006 4:48 PM
To: Repeater-Builder@yahoogroups.com
Subject: [Repeater-Builder] Micor 800MHz Base Stations?



Did Motorola ever make a Micor or earlier vintage base station with a
tube PA on 800MHz?

--
Kris Kirby
<[EMAIL PROTECTED]>





Yahoo! Groups Links

[Repeater-Builder] Micor 800MHz Base Stations?

[Kris Kirby]

Did Motorola ever make a Micor or earlier vintage base station with a 
tube PA on 800MHz?

--
Kris Kirby
<[EMAIL PROTECTED]>

[Repeater-Builder] 6M cans still wanted in the UK

[dave_g7uzn]

Hi All, I rescently posted that I need a set of 6M cans for a repeater 
project in the UK. Despite one offer that appears to have fizzled out. 
Is anyone prepared to sell me some high quality cans and ship them to 
the UK? All expences paid.

  Thanks in advance..Cheers Dave UZN

RE: [Repeater-Builder] Newbie Information Time - Mystery Signal

[Paul Finch]

Neil,

As always, good post.  Hey, stay dry out there if you can!

Paul




-Original Message-
From: Repeater-Builder@yahoogroups.com
[mailto:[EMAIL PROTECTED] On Behalf Of [EMAIL PROTECTED]
Sent: Thursday, December 14, 2006 10:34 AM
To: Repeater-Builder@yahoogroups.com
Subject: [Repeater-Builder] Newbie Information Time - Mystery Signal

  
   I guess it is time again for a bit of clarification for the 
  apparent newbies:  
 
   PL ... is a registered trademark of Motorola Inc. properly 
  known as Private Line. 
 
   A very polite way of saying the same thing here is 
  Continuous Tone Coded Squelch System or CTCSS. 
 
   The following is for all but specfically Mike Morris as well:
   The reference to hz is also incorrect ... as is an abbreviation 
  of Hertz, a persons last name.  Specifically should be Hz. 
 
   In my opinion, is a slight flaw in the voice operation on 
  144.39 MHz below ... the FCC requires you to monitor the 
  frequency in a non-CTCSS mode prior to transmitting. 
  And, if you have your 144.39 MHz receiver locked up on 
  CTCSS decode, your receiver won't hear the packet 
  operations ... 
 
   Thank you for your time, 
   Neil McKie - WA6KLA 
 



- Original Message -
From: Max Slover <[EMAIL PROTECTED]>
Date: Wednesday, December 13, 2006 4:58 pm
Subject: Re: [Repeater-Builder] Mystery Signal

> In case I confused anybody, this is what I am refering
> to with APRS and a 100hz tone ---
> 
> VOICE ALERT:  This simply means that you do not turn
> the audio down on 
> 144.39, but instead leave it at high volume and then
> simply set CTCSS 
> tone 100 to mute the speaker.  This way, you dont hear
> any packets, but 
> ANYONE can call you with VOICE on 144.39 to alert you
> by using PL 100.  
> You will rarely use this, and only use it to tell
> someone to QSY to another 
> voice channel, but it is one way of assuring that
> ANYONE running APRS in 
> simplex range of you can ALWAYS be contacted with a
> voice call...
> 
> You wont hear any  packets except maybe one or two
> when another VOICE-
> ALERT mobile is in range (about 3 miles or so).  But
> even then, he is only 
> beaconing once every 2 minutes and so it is not
> bothersome at all..  
> In fact, it is nice to hear when someone is nearby! 
> Its like a free radar
> for other mobile APRS operators that are in simplex
> range AND listening.
> 
> --- 
> 
> --- Max Slover <[EMAIL PROTECTED]> wrote:
> 
> > Doh, this just hit me. It would most definitely be
> > an
> > APRS setup due to the 100hz subtone. In APRS you set
> > the subtone to 100 so you can do voice alert. Man,
> > why
> > didn't I think of that part when this was first
> > mentioned. 
> > 
> > Sorry for being a bit late on that but I figured I'd
> > toss my 2 cents on this. 
> > 
> > Max...
> 
> 
> Public Information Officer -- St. Louis & Suburban Radio Club
> K0AZV - Amateur
> WPWH-650 GMRS 
> St. Louis County ARES
> St. Ann MO EM48tr
> 
> 
> 
> 
> 
> Yahoo! Groups Links
> 
> 
> 
> 




 
Yahoo! Groups Links

[Repeater-Builder] Newbie Information Time - Mystery Signal

[n . mckie]

  
   I guess it is time again for a bit of clarification for the 
  apparent newbies:  
 
   PL ... is a registered trademark of Motorola Inc. properly 
  known as Private Line. 
 
   A very polite way of saying the same thing here is 
  Continuous Tone Coded Squelch System or CTCSS. 
 
   The following is for all but specfically Mike Morris as well:
   The reference to hz is also incorrect ... as is an abbreviation 
  of Hertz, a persons last name.  Specifically should be Hz. 
 
   In my opinion, is a slight flaw in the voice operation on 
  144.39 MHz below ... the FCC requires you to monitor the 
  frequency in a non-CTCSS mode prior to transmitting. 
  And, if you have your 144.39 MHz receiver locked up on 
  CTCSS decode, your receiver won't hear the packet 
  operations ... 
 
   Thank you for your time, 
   Neil McKie - WA6KLA 
 



- Original Message -
From: Max Slover <[EMAIL PROTECTED]>
Date: Wednesday, December 13, 2006 4:58 pm
Subject: Re: [Repeater-Builder] Mystery Signal

> In case I confused anybody, this is what I am refering
> to with APRS and a 100hz tone ---
> 
> VOICE ALERT:  This simply means that you do not turn
> the audio down on 
> 144.39, but instead leave it at high volume and then
> simply set CTCSS 
> tone 100 to mute the speaker.  This way, you dont hear
> any packets, but 
> ANYONE can call you with VOICE on 144.39 to alert you
> by using PL 100.  
> You will rarely use this, and only use it to tell
> someone to QSY to another 
> voice channel, but it is one way of assuring that
> ANYONE running APRS in 
> simplex range of you can ALWAYS be contacted with a
> voice call...
> 
> You wont hear any  packets except maybe one or two
> when another VOICE-
> ALERT mobile is in range (about 3 miles or so).  But
> even then, he is only 
> beaconing once every 2 minutes and so it is not
> bothersome at all..  
> In fact, it is nice to hear when someone is nearby! 
> Its like a free radar
> for other mobile APRS operators that are in simplex
> range AND listening.
> 
> --- 
> 
> --- Max Slover <[EMAIL PROTECTED]> wrote:
> 
> > Doh, this just hit me. It would most definitely be
> > an
> > APRS setup due to the 100hz subtone. In APRS you set
> > the subtone to 100 so you can do voice alert. Man,
> > why
> > didn't I think of that part when this was first
> > mentioned. 
> > 
> > Sorry for being a bit late on that but I figured I'd
> > toss my 2 cents on this. 
> > 
> > Max...
> 
> 
> Public Information Officer -- St. Louis & Suburban Radio Club
> K0AZV - Amateur
> WPWH-650 GMRS 
> St. Louis County ARES
> St. Ann MO EM48tr
> 
> 
> 
> 
> 
> Yahoo! Groups Links
> 
> 
> 
> 

Re: [Repeater-Builder] Re: Mystery Signal

[albemarle7]

Nearly two years ago I had similar weak signal sitting on my repeater input  
that sounded like packet.  Turns out it was a defective digital emergency  
transmitter for a fire company located about 40 miles north of me. 
Gary  K2UQ
 
 

[Repeater-Builder] Re: 6M duplexer wanted in UK

[dave_g7uzn]

Are you saying that a duplexer built from heliax can cope with a 
0.5MHz plit at any temperature?I somehow doubt it (no invar!)

Cheers Dave UZN






--- In Repeater-Builder@yahoogroups.com, "Matt Beasant" <[EMAIL PROTECTED]> 
wrote:
>
> Hi Steve,
> 
> The 'FH duplexer was built by a very good friend, who doesn't want 
to build another one!!!
> 
> But yes, it was built from LDF7-50 1 -5/8" Heliax.
> 
> Matt
>   - Original Message - 
>   From: Steve 
>   To: Repeater-Builder@yahoogroups.com 
>   Sent: Wednesday, December 06, 2006 5:14 PM
>   Subject: Re: [Repeater-Builder] 6M duplexer wanted in UK
> 
> 
>   Hi Matt
> 
>   What size heliax did you use, I seem to remember that it was 
built for you, wasn't it. I tried myself with small dia stuff
>   and it was not very good, went slightly off tune and of course
>   rx desense. As I have said, itmay just have been the cable I 
used.
> 
>   73
> 
>   Steve
> - Original Message - 
> From: Matt Beasant 
> To: Repeater-Builder@yahoogroups.com 
> Sent: Wednesday, December 06, 2006 4:06 PM
> Subject: Re: [Repeater-Builder] 6M duplexer wanted in UK
> 
> 
> My heliax duplexer has been in service now for over 2
> years at GB3FH without fault or need to re-adjust.
> 
> I check it every time I visit site and it never moves!
> 
> Over 85dB rejection on one side and 90 odd dB on the
> other, works fine for me.
> 
> You can see pictures of it at www.gb3fh.org.uk
> 
> Regards,
> 
> Matt, G4RKY
> --- Steve <[EMAIL PROTECTED]> wrote:
> 
> > Hi
> > 
> > don't get me wrong, Iam not condeming heliax
> > duplexers
> > totaly, but you have to take into account
> > reliability once on site. I did make one but had to
> > scrap it as it was so unreliable causing de sense
> > etc, and every time I had to look at it I had to
> > make arragements to access the site, which could
> > take upto 2 weeks, must point out the one I
> > made used small dia heliax, maybe larger dia would
> > be OK
> > but as I can't get any, I don't know
> > Anyway had my say so end of thread from me
> > 
> > Steve
> > - Original Message - 
> > From: Barry C' 
> > To: Repeater-Builder@yahoogroups.com 
> > Sent: Wednesday, December 06, 2006 11:25 AM
> > Subject: Re: [Repeater-Builder] 6M duplexer wanted
> > in UK
> > 
> > 
> > 
> > Being a fan to the exclusion of saving several
> > hundred quid is rather silly 
> > when the duplexers work well and are generally
> > quite efficient .
> > 
> > >From: "Steve" <[EMAIL PROTECTED]>
> > >Reply-To: Repeater-Builder@yahoogroups.com
> > >To: 
> > >Subject: Re: [Repeater-Builder] 6M duplexer
> > wanted in UK
> > >Date: Wed, 6 Dec 2006 11:07:54 -
> > >
> > >Hi
> > >
> > > think you will find that Dave, like me, isn't a
> > huge fan
> > >of Heliax duplexers, see my posts about actualy
> > getting
> > >hold of ldf 750
> > >
> > >73
> > >
> > >Steve
> > > - Original Message -
> > > From: Mr John Lloyd
> > > To: [EMAIL PROTECTED] ;
> > repeater-builder@yahoogroups.com ; John 
> > >Lloyd
> > > Sent: Wednesday, December 06, 2006 6:56 AM
> > > Subject: [Repeater-Builder] 6M duplexer wanted
> > in UK
> > >
> > >
> > > Dave,
> > >
> > > You can build your own 6 Mtr duplexer. Find some
> > 1-5/8
> > > heliax and put one together.
> > >
> > > Look at http://www.wa7x.com/ki7dx_rpt.html
> > >
> > > Thanks,
> > >
> > > John, K7JL
> > >
> > > Utah VHF Society
> > >
> > > http://utahvhfs.org/snowlink.html
> > >
> > > 1a. 6M duplexer wanted in UK
> > > Posted by: "dave_g7uzn" [EMAIL PROTECTED]
> > > dave_g7uzn
> > > Date: Tue Dec 5, 2006 3:20 am ((PST))
> > >
> > > Hi All, Is anyone with a set of cavity filters
> > > suitable for 50/51MHz
> > > brave enough to sell them to me and get them
> > shipped
> > > to the UK for a
> > > 6M repeater project? ALL expences will of course
> > be
> > > covered. If you
> > > can help please email me direct at
> > >
> > > [EMAIL PROTECTED]
> > >
> > >
> >
> __
> > > Need a quick answer? Get one in minutes from
> > people who know.
> > > Ask your question on www.Answers.yahoo.com
> > >
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> > 
> >
> >--
> > >
> > >
> > > No virus found in this incoming message.
> > > Checked by AVG Free Edition.
> > > Version: 7.5.432 / Virus Database: 268.15.9/573
> > - Release Date: 
> > >12/5/2006 4:07 PM
> > 
> > 
> >
> 

[Repeater-Builder] Re: Micor compa-station Manual

[n3gh_1]

Bob,

I got your copies.
They look great.
Thanks alot

73,
N3GH
George

--- In Repeater-Builder@yahoogroups.com, "Bob M." <[EMAIL PROTECTED]> wrote:
>
> I've got that exact manual and will scan the two pages
> and e-mail them to you. What I don't find is a photo
> showing the tuned components; they're present for the
> exciter but not for the receiver. If you have the
> metal shield on the receiver, I think that has the
> component labels on it.
> 
> Bob M.
> ==
> --- n3gh_1 <[EMAIL PROTECTED]> wrote:
> 
> > Wonder if anyone has a spare manual for the Micor
> > Compa-station?
> > P/N of the one I need is the 68P81025E50.
> > THis has the alighment instrucgtions for the
> > TLE8032B receiver and the
> > TLE8023B Filter.
> > 
> > Thanks
> > 
> > N3GH
> > George
> > (W3BD Repeater)
> 
> 
>  
>

> Want to start your own business?
> Learn how on Yahoo! Small Business.
> http://smallbusiness.yahoo.com/r-index
>

[Repeater-Builder] Re: Mirage D1010 Amp for ATV repeaters?

[Ken]

Hi Roger!

Thanks for the info. 

Bit of bad news on this actually. 

We sold our old PA to help fund the new one. 

I received an Email from the guy we were going to buy from in the US
who now says he has found another buyer. :(

So our repeater is currently off air until we can find another. 

So if you hear of any around the $100 mark, please let us know. 

Regards,
Ken
.-.-.



--- In Repeater-Builder@yahoogroups.com, <[EMAIL PROTECTED]> wrote:
>
> We used one of these amps on our ATV repeater that re-transmitted
Weather Radar images for many, many years in the Dallas/Ft. Worth area
and had no failures that I remember. We transmitted into a circulator
prior to the antenna, a 5 dB omni vertical, which was over 900 feet
above the ground. Best I remember, we used it near its max. power out
limit, backing off a little.
> 
> Roger W5RD
> 
> 
> >From: Ken <[EMAIL PROTECTED]>
> >Date: 2006/12/13 Wed AM 07:23:55 CST
> >To: Repeater-Builder@yahoogroups.com
> >Subject: [Repeater-Builder] Mirage D1010 Amp for ATV repeaters?
> 
> >  
> >Giday!
> >
> >Has anyone had any experience using the Mirage D1010 amps for 70cm ATV?
> >
> >I'm looking at getting a bigger amp for our local ATV repeater and the
> >older versions of these amps seem to be fairly plentiful second hand
> >in the US. 
> >
> >I believe there are a few different versions of this amp, so I would
> >be interested to hear how they vary internally and in application.
> >Also how to tell the difference between them by their outside
appearance. 
> >
> >Another reason I am looking at these is that I am led to believe that
> >they use the MRF646 to drive a pair of MRF648 's. We have a few spares
> >of these particular transistors so this would be handy also for future
> >maintanance.
> >
> >Oh also what is a good price for these amps second hand in good
condition?
> >
> >Regards, 
> >Ken - VK4AKP
> >.-.-.
> >
> >
> 
> 
> Roger White
> Murphy, Texas
>

[Repeater-Builder] Midland transmitter and receiver

[Dennis Bridgeman]

Hello, all,
I am looking for a set of TCXO's for the Midland UHF BaseTech repeater 
transmitter, 71-5051B, and the receiver 71-5052B.  If no one has a spare set, I 
would consider the complete exciter and receiver, but these will need to have 
the TCXO's included.  Contact me off list with info on what you have, at [EMAIL 
PROTECTED].

Dennis Bridgeman KC0FWN
Bridgeman Communications
202 Seventh Street 
Carmi, Illinois 62821
http://bridgemancommunications.com

Re: [Repeater-Builder] Mystery Signal

[Max Slover]

In case I confused anybody, this is what I am refering
to with APRS and a 100hz tone ---

VOICE ALERT:  This simply means that you do not turn
the audio down on 
144.39, but instead leave it at high volume and then
simply set CTCSS 
tone 100 to mute the speaker.  This way, you dont hear
any packets, but 
ANYONE can call you with VOICE on 144.39 to alert you
by using PL 100.  
You will rarely use this, and only use it to tell
someone to QSY to another 
voice channel, but it is one way of assuring that
ANYONE running APRS in 
simplex range of you can ALWAYS be contacted with a
voice call...

You wont hear any  packets except maybe one or two
when another VOICE-
ALERT mobile is in range (about 3 miles or so).  But
even then, he is only 
beaconing once every 2 minutes and so it is not
bothersome at all..  
In fact, it is nice to hear when someone is nearby! 
Its like a free radar
for other mobile APRS operators that are in simplex
range AND listening.

--- 

--- Max Slover <[EMAIL PROTECTED]> wrote:

> Doh, this just hit me. It would most definitely be
> an
> APRS setup due to the 100hz subtone. In APRS you set
> the subtone to 100 so you can do voice alert. Man,
> why
> didn't I think of that part when this was first
> mentioned. 
> 
> Sorry for being a bit late on that but I figured I'd
> toss my 2 cents on this. 
> 
> Max...


Public Information Officer -- St. Louis & Suburban Radio Club
K0AZV - Amateur
WPWH-650 GMRS 
St. Louis County ARES
St. Ann MO EM48tr

Re: [Repeater-Builder] Mystery Signal

[Chuck Kimball]

The other way you could help rule out anything on that tower would be to 
get a list of the transmitters there and listen to their frequency and 
compare when you're hearing the interference.  Make take a day or two to 
get through them all, but that should help.

i.e.  Scanner or extra receiver tuned to example 151.085 at the :53 
transmission, nothing heard and no key up during that time, move on to 
the next frequency and listen at the :23 transmission, etc.  If the 
tower owner knows they are running a data specific type system that 
would be the one to start with.  If you don't want to bug him again, 
start with a search of the FCC database for those coordinates.
http://www.fcc.gov   click on search, etc.  You can enter the lat/lon 
and a radius around and list out the transmitters.

Chuck
n0nhj

Scott Overstreet wrote:
> Hello All
>  
> Many thanks to all of you who have responded to my call for help in 
> identifing our "Mystery Signal"--all of your comments and especially 
> the signal analysis work done by Rodger, Nate, Joe and others are 
> helping with our task. Please keep up the effort as we have not found 
> our signal yet.
>  
> Preliminary Doppler DF work has us surounding a large scale municiple 
> tower with what we have labled our area of uncertainitya half mile 
> diameter circle or so. Distant vectors from clear areas converge there 
> but close in vectors disperce in almost all directions apparently due to 
> reflections from tall buildings, cars, metel doors, roofs etc.. We are 
> now rounding up a team of experienced DF'ers with other techniques. I 
> have succeded in making contact with the guy that is responsible for the 
> Motorola gear on the towerhe says that our signal isn't comming from 
> any of his stuff but that there is other gear in the radio room and that 
> he will look it over while monitoring by service monitor---a start there.
>  
>  From your responses so far, it sounds like we may well be looking for a 
> piece of ham gear that is mistakenly on our repeater inputwith this 
> we will get back into the neighborhoods around the tower for a new look 
> and spread the word through the packet guys.
>  
> Again, many thanks to all of you-I'll keep you informed.
>  
> Scott
> 
> 
> 
> 
> 
> No virus found in this incoming message.
> Checked by AVG Free Edition.
> Version: 7.1.409 / Virus Database: 268.15.18/585 - Release Date: 12/13/2006
>