repeater-builder@groups.io

Motorola MICOR UHF 250 watt base xmtr - For Sale

Skip Withrow

I have a very clean working Motorola UHF 250 watt continuous duty 
base transmitter for sale.  Lots of extras with it too.  Check out 
the ebay listing -



Thanks,
Skip Withrow - WB0BBE
swithrow@...

Re: Repeater Antennas

Thomas, Kevin

#798

Hello Terry,
        KB5ZVK here to tell you that I'm using a DB420 set at 451.000 mhz.
35 watt transmitter on a 175' tower at a ground level of
     185' with 1 5/8 hardline and I get a range 40 miles to a mobile on
medium power and still abile to use the autopatch on a cat1000
     controler. I called DB Products about the antenna. and they told me
that I could get a new phasing harnes tuned to amateur band
     But the price scared me away so I'm still using the this antenna tuned
for 451.000 mhz. I love it.And have no complaints about    
     the operation.

Show quoted text

-----Original Message-----
From:	drreality [SMTP:drreality@...]
Sent:	Saturday, April 24, 1999 3:37 PM
To:	Repeater-builder@...
Subject:	[Repeater-builder] Repeater Antennas

From: drreality <drreality@...>

Hi Guys:  I am working on putting a repeater together with a few other
folks help, and I am in need of a reccomendation of a good UHF repeater
antenna.  I have seen a few of the DB products antennas and called them
about an antenna that would work for amateur UHF purposes.  They
informed me that they do not build an antenna for the Amateur UHF
frequencies.  I would like to stay away from the fiberglass antennas
also.  The local repeater here used one for a while but the noise
buildup sometimes made the repeater almost useless to use.  The
frequency for this new repeater is on 442.700 Mhz.  Any help you folks
could reccomend would be appreciated.

Terry
KF0AO

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Re: Repeater Antennas

David Peterson

#797

Try Sinclair Labs. They will tune their antennas in
the Ham Bands. To me they are just as good as DB, but 
last time I've checked they are less expensive then DB.
I have a new SRL-224 new in the box. It is for two meters, if any one is
interested.
Dave
KD4POG
PS this would have to be a pick up or a meet somewhere
near the Atlanta area. this is a large antenna.

Show quoted text

-----Original Message-----
From: drreality [mailto:drreality@...]
Sent: Saturday, April 24, 1999 4:37 PM
To: Repeater-builder@...
Subject: [Repeater-builder] Repeater Antennas

From: drreality <drreality@...>

Hi Guys:  I am working on putting a repeater together with a few other
folks help, and I am in need of a reccomendation of a good UHF repeater
antenna.  I have seen a few of the DB products antennas and called them
about an antenna that would work for amateur UHF purposes.  They
informed me that they do not build an antenna for the Amateur UHF
frequencies.  I would like to stay away from the fiberglass antennas
also.  The local repeater here used one for a while but the noise
buildup sometimes made the repeater almost useless to use.  The
frequency for this new repeater is on 442.700 Mhz.  Any help you folks
could reccomend would be appreciated.

Terry
KF0AO

------------------------------------------------------------------------
G-SHOCK SPORTS WATCH - Built Tough! Built Cool! G-SHOCK keeps you in
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Re: 13-509 mods?

tom oliver

#796

Is 220 NOTES still around?  If not how about someone scanning in all the back
issues and posting it somewhere?

tom n8ies

joecheck@... wrote:

Show quoted text

From: joecheck@...

At 09:11 PM 4/25/99 , you wrote:

Im looking for Mods on the Midland 13-509's  ( aka Cobra 200, Clegg fm-76 ) .
I have some copies of "220 Notes" articles from years ago. I'll look for them.
I had a 13-509 repeater for years, and did some of the mods. As a matter of
fact, that repeater is still alive & well and is for sale by the present owner.

Give me an email and remind me in a few days in case I forget, it's early.

Joe, K1IKE

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Re: Mitrek, Pin Outs

tom oliver

#795

check the above link I think it will answer all your questions

tom n8ies

Kevin Mitchell wrote:

Show quoted text

From: Kevin Mitchell <sparc@...>

Hi All,

I have a low band Mitrek radio, which is being used for our 10mtr
repeater.
I have got so far with it, but have come across a couple of problems
which I need some help.

On the 19 pin socket 1 pin has discriminator audio on it, and 2 pins
have speaker audio.
Can someone please supply me with the pins. Also I know that you can not
ground either side of the speaker, doing so will kill the audio amp, not
a problem. Can I use a standard 8ohm speaker?

Thanks in advance.

Regards

Kevin, ZL1UDD.

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Re: Legal requirements

Richard D. Reese

#794

Chuck,

I believe you are correct.  I have operated one or more remote base transmitters
for over 20 years.  Some individuals want to overly complicate things.

Reminds me of the time someone complained that I made an autopatch on one of my
repeaters and did not identify the third party traffic.  I could not convince
the Extra class license holder that there were only two parties involved.  There
was my wife on the phone and I was on the radio going through the repeater for
which I was the trustee.  Could not convince him that there were only two
parties when I made a phone call and three only when using a system with the
call of another on it.

Rich


Chuck Kelsey wrote:

From: Chuck Kelsey <kelsey@...>

So listen to both transmitters with two receivers. You ID on the HT and
hear the ID on the receiver listening to that transmitter. What do you
hear on the receiver listening to the remote base? I'm pretty sure
you'll hear the ID there as well.

I'm not trying to argue. I just think you are trying to make it more
difficult than it really is. My final comment on the subject.

Chuck

----------------------------------------------------

Richard Bomboy wrote:

From: Richard Bomboy <rlee@...>

97.119 says in part: Each amateur station , except a space or telecommand
station,
 must transmit it's assigned call sign on it's transmitting channel at the
end - you know the rest
so if a handheld is even next to the remote base as in the same room the
remote base still has
to id itself. Two transmitters, two ID's
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--
Richard & Charmaine Reese
WA8DBW     330-335-0122

cavity filter docs

Kosa Tibor <[email protected]

#792

Hi Guys,

We are, in my little HAM-community in Gyor, Hungary, Thinking to start
repeaters. We have surplus radios, aerials, but the big Enemy is the
duplexer (cavity filter).
We need homebrewer's technical docs how to build a good cavity filter
for 10, 6, 2 m and 70 cm bands.
Can anybody help with some technical literature on any other ideas?
Thanks in advance
		   Tibor HA 1 US

email:  kosat@...
   or     ha1us@...

Re: 13-509 mods?

[email protected]

#793

At 09:11 PM 4/25/99 , you wrote: 

Im looking for Mods on the Midland 13-509's  ( aka Cobra 200, Clegg fm-76 ) .
 
I have some copies of "220 Notes" articles from years ago. I'll look for them. 
I had a 13-509 repeater for years, and did some of the mods. As a matter of
fact, that repeater is still alive & well and is for sale by the present owner.

Give me an email and remind me in a few days in case I forget, it's early.

Joe, K1IKE

Mitrek, Pin Outs

Kevin Mitchell <[email protected]

#791

Hi All,

I have a low band Mitrek radio, which is being used for our 10mtr
repeater.
I have got so far with it, but have come across a couple of problems
which I need some help.

On the 19 pin socket 1 pin has discriminator audio on it, and 2 pins
have speaker audio.
Can someone please supply me with the pins. Also I know that you can not
ground either side of the speaker, doing so will kill the audio amp, not
a problem. Can I use a standard 8ohm speaker?

Thanks in advance.

Regards

Kevin, ZL1UDD.

Re: Motorola MSR2000 Power Supply

litz

#790

Andrew,

Here's a general run-down of all the voltages and what they go to:

High Current Output:
13.1 to 16.3 VDC, with 36 amp load, and 2 amp load respectively
Voltage is regulated *normally* only by the ferroresonat action in the
secondary winding.  Of course there are the large caps and L601 (the large
420uH choke) for filtering/voltage support - but no adjustments.  This
feeds power only to the PA.

Distribution Board (TPN6138):
Provides over current (fuses) and overvoltage protection (18V) through a
load resistor, as discussed previously.

Aux Reg board (TRN5119A):
Supplies 9.4 and 13.9 VDC, regulated, and are both adjustable.  The 9.4VDC
is rated for 1.1 amps, with a current limit of 2.3 amp (foldback
protected).  The 13.9VDC section is rated for 1.16 amps, with a current
limit of 2.3 amps (also foldback protected).  Ratings are at 25`C.

The 9.4 and 13.9 VDC voltages supply power to the receiver(s), exciter, and
control modules. (not the PA)

TP101 should read 9.4 v, and TP111 should read 13.9 v, under standby and TX
conditions.

If you have aprox 15.0VDC to the PA with a 20 amp load, your power supply
is in good shape!

BTW are you converting a base to a repeater?  E-mail privately if you are...

-Brian N0PMZ

Show quoted text

At 04:44 PM 4/25/99 PDT, you wrote:
From: "Andrew Jones" <ve3gtu@...>


   The 15.8v is with no load.  Putting a 20amp load on it will only 
drop the voltage to ~15.0 volts.  Under a mild load (2-5amps) the 
voltage stays around 15.6-.7 volts which seems a bit high to power 
contollers and radios.  You mentioned the 2nd output for the MSR2000 
exciter/RX section, how much current is available at this port? 
(2-3amps?)

Thanx
  Aj

Re: Remore Base Legal requirements

Richard Bomboy

#789

This is true but the point was about relevance

At 12:27 AM 4/26/99 -0400, you wrote:
From: JHowel@...

In a message dated 4/26/99 12:16:43 AM Eastern Daylight Time, rlee@...
writes:

<< If you listen to a broadcast station >>

Now you're talking about two different sets of FCC rules entirely

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Dick WA3USH
"It happens, just deal with it"
The people will not understand the importance of the Second Amendment until 
it is too late." -- Thomas Jefferson

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Re: Remore Base Legal requirements

Richard Bomboy

#787

Now what has that to do with ID?? If you listen to a broadcast station
aqll ya hear is the main xmitter not the studio link either, which has as much
relevance to this discussion as yer receiver statement. Point is, it is a 
xmitter
and has to be IDed, period.

At 11:10 PM 4/25/99 -0400, you wrote:
From: Chuck Kelsey <kelsey@...>

So listen to both transmitters with two receivers. You ID on the HT and
hear the ID on the receiver listening to that transmitter. What do you
hear on the receiver listening to the remote base? I'm pretty sure
you'll hear the ID there as well.

I'm not trying to argue. I just think you are trying to make it more
difficult than it really is. My final comment on the subject.

Chuck



----------------------------------------------------

Richard Bomboy wrote:

From: Richard Bomboy <rlee@...>

97.119 says in part: Each amateur station , except a space or telecommand
station,
 must transmit it's assigned call sign on it's transmitting channel at the
end - you know the rest
so if a handheld is even next to the remote base as in the same room the
remote base still has
to id itself. Two transmitters, two ID's
------------------------------------------------------------------------
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Dick WA3USH
"It happens, just deal with it"
The people will not understand the importance of the Second Amendment until 
it is too late." -- Thomas Jefferson

*** WARNING TO UNSOLICITED SPAMMERS***
Pursuant to US Code, Title 47, Chapter 5, Subchapter II,"Any and all 
nonsolicited E-mail (SPAM) sent to this address is subject to a download 
and archival fee of $500.00 US" !!!

E-mailing to this address denotes acceptance of these terms.

Re: Remore Base Legal requirements

Richard Bomboy

#785

He is talking on one of his stations, the other is repeating him actually.
Rules say EACH Amateur station must ID.
Fact is there is no definition of a remote base in
Part 97.

At 10:37 PM 4/25/99 -0400, you wrote:
From: Chuck Kelsey <kelsey@...>

You mean he has to give his callsign twice? Remember, he is talking on
his own station, not someone else's.


--------------------------------------

Richard Bomboy wrote:

From: Richard Bomboy <rlee@...>

Don't think so, he ID'ed the hand held station not the "base" station
if what ya say is true a repeater does not need to ID either
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Dick WA3USH
"It happens, just deal with it"
The people will not understand the importance of the Second Amendment until 
it is too late." -- Thomas Jefferson

*** WARNING TO UNSOLICITED SPAMMERS***
Pursuant to US Code, Title 47, Chapter 5, Subchapter II,"Any and all 
nonsolicited E-mail (SPAM) sent to this address is subject to a download 
and archival fee of $500.00 US" !!!

E-mailing to this address denotes acceptance of these terms.

Re: Remore Base Legal requirements

Chuck Kelsey

#784

So listen to both transmitters with two receivers. You ID on the HT and
hear the ID on the receiver listening to that transmitter. What do you
hear on the receiver listening to the remote base? I'm pretty sure
you'll hear the ID there as well.

I'm not trying to argue. I just think you are trying to make it more
difficult than it really is. My final comment on the subject.

Chuck



----------------------------------------------------

Richard Bomboy wrote:

Show quoted text

From: Richard Bomboy <rlee@...>

97.119 says in part: Each amateur station , except a space or telecommand
station,
 must transmit it's assigned call sign on it's transmitting channel at the
end - you know the rest
so if a handheld is even next to the remote base as in the same room the
remote base still has
to id itself. Two transmitters, two ID's

Re: Remore Base Legal requirements

Richard Bomboy

#783

97.119 says in part: Each amateur station , except a space or telecommand 
station,
 must transmit it's assigned call sign on it's transmitting channel at the 
end - you know the rest
so if a handheld is even next to the remote base as in the same room the 
remote base still has
to id itself. Two transmitters, two ID's


At 10:18 PM 4/25/99 -0400, you wrote:
From: JHowel@...

In a message dated 4/25/99 10:00:51 PM Eastern Daylight Time, rlee@...
writes:

<< Don't think so, he ID'ed the hand held station not the "base" station
if what ya say is true a repeater does not need to ID either
 >>

I could be wrong, but I believe you can ID your remote base (as well as
crossband and other similar links) simply by stating "W9SAR via the W9SAR
remote base" (or via whatever).

73,
Jeff, W9SAR
www.qsl.net/w9sar

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Dick WA3USH
"It happens, just deal with it"
The people will not understand the importance of the Second Amendment until 
it is too late." -- Thomas Jefferson

*** WARNING TO UNSOLICITED SPAMMERS***
Pursuant to US Code, Title 47, Chapter 5, Subchapter II,"Any and all 
nonsolicited E-mail (SPAM) sent to this address is subject to a download 
and archival fee of $500.00 US" !!!

E-mailing to this address denotes acceptance of these terms.

Re: Remore Base Legal requirements

Daniel Byrd

#781

If you ID and add remote base to the end, you should be ok.
Anyone else using it needs to do the same, or you will have to have a
ID'er on it.
73, Daniel

Re: Remore Base Legal requirements

Chuck Kelsey

#782

You mean he has to give his callsign twice? Remember, he is talking on
his own station, not someone else's.

--------------------------------------

Richard Bomboy wrote:

Show quoted text

From: Richard Bomboy <rlee@...>

Don't think so, he ID'ed the hand held station not the "base" station
if what ya say is true a repeater does not need to ID either

Re: Remore Base Legal requirements

Richard Bomboy

#779

Don't think so, he ID'ed the hand held station not the "base" station
if what ya say is true a repeater does not need to ID either

At 08:40 PM 4/25/99 -0400, you wrote:
From: Chuck Kelsey <kelsey@...>


When you give your callsign over your HT, you just IDed your remote
base.

Chuck Kelsey
WB2EDV


---------------------------------------------

 I would like to operate a remoyte base from my house and I am confused
as to the fcc requirements
HOW or IF I need t ID the remote base. Can anyone help me?
   I am using a dual band mobile to remote access from VHF simplex to an
UHF repeater. The repeater owner has givin me the OK to do this but we
are not sure of the requirements as to the "ID".
    thanks Mark KB0NMQ------------------------------------------------------------------------
Start a new hobby. Meet a new friend.

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Dick WA3USH
"It happens, just deal with it"
The people will not understand the importance of the Second Amendment until 
it is too late." -- Thomas Jefferson

*** WARNING TO UNSOLICITED SPAMMERS***
Pursuant to US Code, Title 47, Chapter 5, Subchapter II,"Any and all 
nonsolicited E-mail (SPAM) sent to this address is subject to a download 
and archival fee of $500.00 US" !!!

E-mailing to this address denotes acceptance of these terms.

13-509 mods?

Chris KF4PUW

#778

Im looking for Mods on the Midland 13-509's  ( aka Cobra 200, Clegg fm-76 ) .

I know someone sent me the Sq. "mod fix" for it, but I had a HDD crash and lost it!

( yeah, my 90 day warranty on the 13-509's ran out.  Just kidding! hihi ) 

Thanks in advance!

73,
Chris  KF4PUW

Re: Remore Base Legal requirements

Chuck Kelsey

#777

When you give your callsign over your HT, you just IDed your remote
base.

Chuck Kelsey
WB2EDV


---------------------------------------------

Show quoted text

 I would like to operate a remoyte base from my house and I am confused
as to the fcc requirements
HOW or IF I need t ID the remote base. Can anyone help me?
   I am using a dual band mobile to remote access from VHF simplex to an
UHF repeater. The repeater owner has givin me the OK to do this but we
are not sure of the requirements as to the "ID".
    thanks Mark KB0NMQ

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