Re: [Repeater-Builder] Re: Mountain top upside down antenna mounting info

[bradley glen]

Hi All

Some time back I did do that same-upside down
collinear-my theory was with the slight uptilt given
to general collieas I tried it upside down and it
worked very well.
Loss of main RF radiation in the horizon is in essance
the same as the majority of the radiation is from the
first radiating element ie: the base of the collinea.
The second theory is by using an antenna slightly off
frequency that in itself will cause slight up-or-down
tilt by a small degree.
The good thing with mounting it upside down is that in
"most "repeater installations there is always a less
important direction that does not need full gain so
the offset mounting becomes in your favour as in the
case of stacked dipole arrays.

There is of course no harm in mounting two collinears
via wilkonson divider -first in up right and the
second on the upside down position.

  One thing I have always tried -time permitting and
that is to test with a good 0dB gain antenna to get a
good reference.

regards

Bradley   ZS5WT   
--- John Everson <[EMAIL PROTECTED]> wrote:
> --- In Repeater-Builder@yahoogroups.com, Kevin
> Custer <[EMAIL PROTECTED]> wrote:
> 
> > I had excellent results with a Hustler G6-440
> (uhf) station antenna
> side 
> > mounted and upside down on Mt. Davis (the highest
> point in
> Pennsylvania).
> > Shadowing of the tower was no different than when
> it was mounted 
> > upright, just better coverage down in the valleys.
> > 
> > Kevin Custer
> > 443.725+ Mt. Davis PA.
> 
> In the past I have wondered if anyone has ever tried
> to do this with
> one antenna mounted upside down and another mounted
> right side up, one
> directly above the other, and fed in phase?
> Interesting, No?
> 
> Comments appreciated.
> 
> John   ab6li
> 
> 
> 
> 
> 
>  
> Yahoo! Groups Links
> 
> 
>  [EMAIL PROTECTED]
> 
>  
> 


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[Repeater-Builder] IFR MM-100 Schematic, anyone?

[cctbcn]

Does anyone have handy the schematic diagram for an IFR MM-100 meter?

This is the VOM/Distortion/SINAD meter that lives in the lid of an IFR
1000 or 1100 service monitor?

Thanks,

Clint
KA7OEI






 
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Re: [Repeater-Builder] Re: GE phoenix UHF

[Mike Morris]

Naaah.
Ajax powder, some water, and a piece of scrap window glass for the coarse 
tuning.
Denture toothpaste for the middle tuning and
the Crest is used for the fine tuning.

I actually ground my first 2m rock that way.
I had a Link receiver that used FT-243 crystals.
I wanted a rock for 146.82 RX and the nearest one I could find multiplied
out to 146.3etc.  About 5 evenings later I was listening to
the local repeater...  After I got a newer radio (it had a dynamotor) the
Link got converted to 110vAC and moved to RTTY monitoring 146.70mhz.
I ground that crystal also.

Mike WA6ILQ

At 01:05 PM 3/24/04 -0500, you wrote:

>lol what  dont believe  in the   toothpaste   deal   and the week of rubbing
>?
>LOL
>Russ
>N3TIH
>
>- Original Message -
>From: "Rick - VA3RZS/Charlotte - VA3CMR" <[EMAIL PROTECTED]>
>To: "Russell Filling" <[EMAIL PROTECTED]>; 
>Sent: Wednesday, March 24, 2004 8:43 AM
>Subject: Re: [Repeater-Builder] Re: GE phoenix UHF
>
>
> > I can only tune a xtal up in freq with a small hammer and a grinder :)
> >
> > On 24 Mar 2004 at 7:42, Russell Filling wrote:
> >
> > > just  out  of curiosit   ,  how  do u program a  crystal ?  i have a
> > > crystaled   GE phoenix  , not one with a  x2122 in it , i need to know
> > > the frequency  mutliplier
> > >
> > > Russ
> > > N3TIH
> > >
> > > - Original Message -
> > > From: "wavecomm1" <[EMAIL PROTECTED]>
> > > To: 
> > > Sent: Tuesday, March 23, 2004 11:44 PM
> > > Subject: [Repeater-Builder] Re: GE phoenix UHF
> > >
> > >
> > > > need the programmer?
> > > >
> > > >
> > > >
> > > >
> > > >
> > > >
> > > >
> > > >
> > > > Yahoo! Groups Links
> > > >
> > > >
> > > >
> > > >
> > > >
> > >
> > >
> > >
> > >
> > >
> > >
> > >
> > > Yahoo! Groups Links
> > >
> > >
> > >
> > >
> > >
> >
> >
> > Rick Szajkowski VA3 RZS
> > Charlotte Darby VA3 CMR
> > Node Owners of IRLP Node 2120
> > Lakefield Ont Canada
> >
> >
> >
> >
> >
> >
> >
> > Yahoo! Groups Links
> >
> >
> >
> >
> >
>
>
>
>
>
>
>
>Yahoo! Groups Links
>
>
>
>





 
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[Repeater-Builder] Motrac IMTS Amp

[RJ Glenn]

Speaking of Motrac...

I have a Motrac IMTS transmitter that appears to work great - makes lots
of power.  I am looking for a manual for it, esp. the amp.  The Model
number is T1240CB-PH53 & the transmitter type is CC3034.  Look through
those old piles of books and stuff ya'll have lying around, here's a
chance to turn an old book into some new money.

Thanks

Robert





 
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Re: [Repeater-Builder] Free Preamp Encloser.

[Tedd Doda]

On Wed, 24 Mar 2004 10:52:34 -0800, Bob Dengler wrote:

>Tron-Tech, eh?  Interesting, we have one of those here too, in the same 
>(dead) state.  Died after being powered up in a lab environment for a 
>couple of years.  I guess they weren't well designed.

This one came for a Radar manufacturer, but that's
all I know. I got boxes of stuff from them, and have
a bunch more to either give away or try to peddle
on Ebay. It would take me weeks to inventory all
of it so I just might make some "box lots".



Tedd Doda, VE3TJD

Lazer Audio and Electronics
Baden, Ontario, Canada







 
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Re: [Repeater-Builder] Free Preamp Encloser.

[Bob Dengler]

At 3/24/2004 06:24 AM, you wrote:
>Hi Guys:
>
>Does anyone have any use for a well heatsinked preamp
>encloser? The active devices are shot, but the box, connectors
>(SMA) and heatsink may come in handy.
>
>Just cleaning out some future projects which never
>became a reality :)
>
>Some pictures:
>
>http://www.sentex.ca/tedds_place/preamp-1.jpg
>http://www.sentex.ca/tedds_place/preamp-2.jpg
>http://www.sentex.ca/tedds_place/preamp-3.jpg

Tron-Tech, eh?  Interesting, we have one of those here too, in the same 
(dead) state.  Died after being powered up in a lab environment for a 
couple of years.  I guess they weren't well designed.

Bob NO6B






 
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[Repeater-Builder] DCI filter on repeater

[Jeff Corkren]

Robert: I'm using my DCI bandpass on transmit & 
receive. It's inserted on the antenna side of the duplexer between the 
duplexer and Polyphaser. It has a good match at this location. On the 
receiver the DCI does a good job of attenuating the RF 
level from the co-located 100KW FM xmtr and paging 
transmitter. On the transmit side it will attenuate the out of band 
harmonics or frequency product mixing generated by the repeater 
exciter/amplifier. Of course I'm not having this problem but the DCI is 
there for protection should it occur. I'm using the DCI in this manner on both 
2-meter & 70 cm repeaters.
 
Jeff Corkren/W5PPB
Raymond, MS  
 
 
Date: Wed, 24 Mar 2004 06:14:51 -0500   From: Robert W Burton 
<[EMAIL PROTECTED]>Subject: DCI 
Filter on repeaterGetting ready to put a DCI (UHF) filter on my 
repeater.  With this inline, do I need to retune my rx side of the 
cans?  I have the Mot. 4 canband pass/reject kind of cans 
(1506?).Thanks,Robert













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Re: [Repeater-Builder] Free Preamp Encloser.

[Tedd Doda]

On Wed, 24 Mar 2004 11:50:54 -0400, Bruce Harvey wrote:

>Tedd I would be interested in getting that enclosure from you.

Sorry Bruce, the preamp is spoken for. Budd N7EOJ is
the new owner.



Tedd Doda, VE3TJD

Lazer Audio and Electronics
Baden, Ontario, Canada







 
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Re: [Repeater-Builder] Re: GE phoenix UHF

[Neil McKie]

  We used to use hydrogen flouride to etch the crystals. 


Russell Filling wrote:
> 
> lol what  dont believe  in the   toothpaste   deal   and the week of rubbing
> ?
> LOL
> Russ
> N3TIH
> 
> - Original Message -
> From: "Rick - VA3RZS/Charlotte - VA3CMR" <[EMAIL PROTECTED]>
> To: "Russell Filling" <[EMAIL PROTECTED]>; 
> Sent: Wednesday, March 24, 2004 8:43 AM
> Subject: Re: [Repeater-Builder] Re: GE phoenix UHF
> 
> > I can only tune a xtal up in freq with a small hammer and a grinder :)
> >
> > On 24 Mar 2004 at 7:42, Russell Filling wrote:
> >
> > > just  out  of curiosit   ,  how  do u program a  crystal ?  i have a
> > > crystaled   GE phoenix  , not one with a  x2122 in it , i need to know
> > > the frequency  mutliplier
> > >
> > > Russ
> > > N3TIH
> > >
> > > - Original Message -
> > > From: "wavecomm1" <[EMAIL PROTECTED]>
> > > To: 
> > > Sent: Tuesday, March 23, 2004 11:44 PM
> > > Subject: [Repeater-Builder] Re: GE phoenix UHF
> > >
> > >
> > > > need the programmer?
> > > >
> > > >
> > > >
> > > >
> > > >
> > > >
> > > >
> > > >
> > > > Yahoo! Groups Links
> > > >
> > > >
> > > >
> > > >
> > > >
> > >
> > >
> > >
> > >
> > >
> > >
> > >
> > > Yahoo! Groups Links
> > >
> > >
> > >
> > >
> > >
> >
> >
> > Rick Szajkowski VA3 RZS
> > Charlotte Darby VA3 CMR
> > Node Owners of IRLP Node 2120
> > Lakefield Ont Canada
> >
> >
> >
> >
> >
> >
> >
> > Yahoo! Groups Links
> >
> >
> >
> >
> >
> 
> 
> Yahoo! Groups Links
> 
> 
> 
>




 
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Re: [Repeater-Builder] Re: GE phoenix UHF

[Russell Filling]

lol what  dont believe  in the   toothpaste   deal   and the week of rubbing
?
LOL
Russ
N3TIH

- Original Message -
From: "Rick - VA3RZS/Charlotte - VA3CMR" <[EMAIL PROTECTED]>
To: "Russell Filling" <[EMAIL PROTECTED]>; 
Sent: Wednesday, March 24, 2004 8:43 AM
Subject: Re: [Repeater-Builder] Re: GE phoenix UHF


> I can only tune a xtal up in freq with a small hammer and a grinder :)
>
> On 24 Mar 2004 at 7:42, Russell Filling wrote:
>
> > just  out  of curiosit   ,  how  do u program a  crystal ?  i have a
> > crystaled   GE phoenix  , not one with a  x2122 in it , i need to know
> > the frequency  mutliplier
> >
> > Russ
> > N3TIH
> >
> > - Original Message -
> > From: "wavecomm1" <[EMAIL PROTECTED]>
> > To: 
> > Sent: Tuesday, March 23, 2004 11:44 PM
> > Subject: [Repeater-Builder] Re: GE phoenix UHF
> >
> >
> > > need the programmer?
> > >
> > >
> > >
> > >
> > >
> > >
> > >
> > >
> > > Yahoo! Groups Links
> > >
> > >
> > >
> > >
> > >
> >
> >
> >
> >
> >
> >
> >
> > Yahoo! Groups Links
> >
> >
> >
> >
> >
>
>
> Rick Szajkowski VA3 RZS
> Charlotte Darby VA3 CMR
> Node Owners of IRLP Node 2120
> Lakefield Ont Canada
>
>
>
>
>
>
>
> Yahoo! Groups Links
>
>
>
>
>






 
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[Repeater-Builder] 6M cavity filter design ?

[dave_g7uzn]

Hi All, You will be pleased to hear that I have scrapped the idea of 
using carbon dioxide bottles for the 6M cavities and have instead 
been put in touch with a local ham that used to own an engineering 
workshop who is willing to help by supplying 6" or 8" ali tubing.

The problem is that I can't find any designs for the filters to work 
on 50/51MHz .i.e. tube lengh, loop lengh etc. Can anyone please 
point me in the right direction to a Web site or supply any 
design/dimensions please ?

  Any help appreciated.Cheers Dave G7UZN London
 





 
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Re: [Repeater-Builder] Free Preamp Encloser.

[Bruce Harvey]

Sorry about that last "message from me"  hit send b4  I typed anything else!
:-(

Tedd I would be interested in getting that enclosure from you.

Please send info re payment directly to me.
[EMAIL PROTECTED]

Thanks,
bruce, ve1ii

- Original Message - 
From: "Tedd Doda" <[EMAIL PROTECTED]>
To: "Repeater" 
Sent: Wednesday, March 24, 2004 10:24 AM
Subject: [Repeater-Builder] Free Preamp Encloser.


> Hi Guys:
>
> Does anyone have any use for a well heatsinked preamp
> encloser? The active devices are shot, but the box, connectors
> (SMA) and heatsink may come in handy.
>
> Just cleaning out some future projects which never
> became a reality :)
>
> Some pictures:
>
> http://www.sentex.ca/tedds_place/preamp-1.jpg
> http://www.sentex.ca/tedds_place/preamp-2.jpg
> http://www.sentex.ca/tedds_place/preamp-3.jpg
>
> All I ask for is the shipping costs...US$6.00
> to anywhere in Canada and the lower 48.
>
> Paypal ONLY..I really get tired of the money
> orders that never show up.
>
>
>
> Tedd Doda, VE3TJD
>
> Lazer Audio and Electronics
> Baden, Ontario, Canada
>
>
>
>
>
>
>
>
> Yahoo! Groups Links
>
>
>
>
>





 
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Re: [Repeater-Builder] Free Preamp Encloser.

[Bruce Harvey]

- Original Message - 
From: "Tedd Doda" <[EMAIL PROTECTED]>
To: "Repeater" 
Sent: Wednesday, March 24, 2004 10:24 AM
Subject: [Repeater-Builder] Free Preamp Encloser.


> Hi Guys:
> 
> Does anyone have any use for a well heatsinked preamp
> encloser? The active devices are shot, but the box, connectors
> (SMA) and heatsink may come in handy.
> 
> Just cleaning out some future projects which never
> became a reality :)
> 
> Some pictures:
> 
> http://www.sentex.ca/tedds_place/preamp-1.jpg
> http://www.sentex.ca/tedds_place/preamp-2.jpg
> http://www.sentex.ca/tedds_place/preamp-3.jpg
> 
> All I ask for is the shipping costs...US$6.00
> to anywhere in Canada and the lower 48.
> 
> Paypal ONLY..I really get tired of the money
> orders that never show up.
> 
> 
> 
> Tedd Doda, VE3TJD
> 
> Lazer Audio and Electronics
> Baden, Ontario, Canada
> 
> 
> 
> 
> 
> 
> 
>  
> Yahoo! Groups Links
> 
> 
> 
>  
> 




 
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[Repeater-Builder] DIY Autopatch?

[John Clark]

Does anyone have any simple plans or 
schematics for an autopatch?
I am thinking of copying the Hamtronics AP3 
schematic. Has anyone used it before? I can almost build it completely from an 
old modem and other spare parts.
 
Also, I want to make the reverse patch where anyone 
(my mom) can call, but a ham must be the control operator to actually allow the 
call on the air.
I can make the "ring" a CW ID that says KI4AWK 
PATCH or something.
John R ClarkKI4AWK[EMAIL PROTECTED]
 
 













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RE: [Repeater-Builder] Re: GE phoenix UHF

[Rogers, Ron]

Why do you need to know the multiplier to order the xtals ??
Simply call Sentry Crystal and tell them the model number of the Phoenix and
your desired TX and RX frequencies.

I've ordered dozens of xtals from Sentry for my Phoenix and Century II VHF
and UHF radios from Sentryalways good service and the rocks are
always "right on".

Ron Rogers
-WB8ERB-



-Original Message-
From: Russell Filling [mailto:[EMAIL PROTECTED]
Sent: Wednesday, March 24, 2004 7:43 AM
To: Repeater-Builder@yahoogroups.com
Subject: Re: [Repeater-Builder] Re: GE phoenix UHF


just  out  of curiosit   ,  how  do u program a  crystal ?  i have a
crystaled   GE phoenix  , not one with a  x2122 in it , i need to know the
frequency  mutliplier

Russ
N3TIH

- Original Message -
From: "wavecomm1" <[EMAIL PROTECTED]>
To: 
Sent: Tuesday, March 23, 2004 11:44 PM
Subject: [Repeater-Builder] Re: GE phoenix UHF


> need the programmer?
>
>
>
>
>
>
>
>
> Yahoo! Groups Links
>
>
>
>
>






 
Yahoo! Groups Links



 




 
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Re: [Re: [Re: [Repeater-Builder] Motorola Motrac Radio]]

[Mike Perryman]

Was that a 1N or 2N tube?

mike

At 06:50 AM 03/24/2004 -0800, you wrote:

>--- Neil McKie <[EMAIL PROTECTED]> wrote:
> >
> >   I thought we had given you some very positive
> > comments for
> >  your project.  :(
> >
> >
>
>neil
>i wonder if he ever 'GOT IT'???
>mdm ted
>I haven't laffed this much in a long time
>pnp warmup times, what ahoot.
>mdm ted
>
>
>=
>Ted Bleiman  K9MDM -just tired
>MDM Radio Ltd
>1629-B N. 31 st Ave
>Melrose Park, IL 60160
>708.681.0300   fax 708.681.9800
>email [EMAIL PROTECTED]
>web http://www.mdmradio.com
>
>__
>Do you Yahoo!?
>Yahoo! Finance Tax Center - File online. File on time.
>http://taxes.yahoo.com/filing.html
>
>
>
>
>
>Yahoo! Groups Links
>
>
>
>

-
   Mike PerrymanCavell, Mertz & Davis, Inc.
   [EMAIL PROTECTED]   Consulting Engineers
   http://www.cmdconsulting.com 7839 Ashton Avenue
   K5JMPManassas, VA 20109   USA
   (703) 392-9090; (703) 392-9559 fax;  DC Line (202) 332-0110
- 





 
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[Repeater-Builder] Re: Mountain top upside down antenna mounting info

[John Everson]

--- In Repeater-Builder@yahoogroups.com, Kevin Custer <[EMAIL PROTECTED]> wrote:

> I had excellent results with a Hustler G6-440 (uhf) station antenna
side 
> mounted and upside down on Mt. Davis (the highest point in
Pennsylvania).
> Shadowing of the tower was no different than when it was mounted 
> upright, just better coverage down in the valleys.
> 
> Kevin Custer
> 443.725+ Mt. Davis PA.

In the past I have wondered if anyone has ever tried to do this with
one antenna mounted upside down and another mounted right side up, one
directly above the other, and fed in phase? Interesting, No?

Comments appreciated.

John   ab6li





 
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Re: [Re: [Re: [Repeater-Builder] Motorola Motrac Radio]]

[Ted Bleiman K9MDM - MDM Radio]

--- Neil McKie <[EMAIL PROTECTED]> wrote:
> 
>   I thought we had given you some very positive
> comments for 
>  your project.  :( 
> 
>  

neil
i wonder if he ever 'GOT IT'???
mdm ted
I haven't laffed this much in a long time
pnp warmup times, what ahoot.
mdm ted


=
Ted Bleiman  K9MDM -just tired
MDM Radio Ltd
1629-B N. 31 st Ave
Melrose Park, IL 60160
708.681.0300   fax 708.681.9800
email [EMAIL PROTECTED]
web http://www.mdmradio.com

__
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Yahoo! Finance Tax Center - File online. File on time.
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Re: [Repeater-Builder] Re: Motrac / Solid State Tubes

[John J. Riddell]

These devices were sometimes called Fetron's. We used them in 43A carrier
units in the Telephone
Central office in the early 70's to replace vacuum tubes.
They were 7 pin devices in metal cans and one version as I recall worked
well as
a replacement for a 6BH6 tube in the first IF of a GE progress line
receiver..
(Hams are resourceful people).

The nuvistor was a different device, it was found in TV tuners of that era
and was developed by RCA.

John VE3AMZ  Waterloo Ont.


- Original Message - 
From: "nj902" <[EMAIL PROTECTED]>
To: 
Sent: Tuesday, March 23, 2004 8:53 PM
Subject: [Repeater-Builder] Re: Motrac / Solid State Tubes


| Perhaps the device referred to is the Nuvistor?
|
| These were used in VHF applications.  [e.g. 6CW4] They
| are metal and don't look all that different from early transistors.
| The size is similar also, the Nuvistor is 0.400" dia. and a TO-5 is
| 0.335" diameter.
|
|
|
|
|
|
| Yahoo! Groups Links
|
|
|
|
|






 
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[Repeater-Builder] Free Preamp Encloser.

[Tedd Doda]

Hi Guys:

Does anyone have any use for a well heatsinked preamp
encloser? The active devices are shot, but the box, connectors
(SMA) and heatsink may come in handy.

Just cleaning out some future projects which never
became a reality :)

Some pictures:

http://www.sentex.ca/tedds_place/preamp-1.jpg
http://www.sentex.ca/tedds_place/preamp-2.jpg
http://www.sentex.ca/tedds_place/preamp-3.jpg

All I ask for is the shipping costs...US$6.00
to anywhere in Canada and the lower 48.

Paypal ONLY..I really get tired of the money
orders that never show up.



Tedd Doda, VE3TJD

Lazer Audio and Electronics
Baden, Ontario, Canada







 
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Re: [Repeater-Builder] Re: GE phoenix UHF

[Rick - VA3RZS/Charlotte - VA3CMR]

I can only tune a xtal up in freq with a small hammer and a grinder :)

On 24 Mar 2004 at 7:42, Russell Filling wrote:

> just  out  of curiosit   ,  how  do u program a  crystal ?  i have a
> crystaled   GE phoenix  , not one with a  x2122 in it , i need to know
> the frequency  mutliplier
> 
> Russ
> N3TIH
> 
> - Original Message -
> From: "wavecomm1" <[EMAIL PROTECTED]>
> To: 
> Sent: Tuesday, March 23, 2004 11:44 PM
> Subject: [Repeater-Builder] Re: GE phoenix UHF
> 
> 
> > need the programmer?
> >
> >
> >
> >
> >
> >
> >
> >
> > Yahoo! Groups Links
> >
> >
> >
> >
> >
> 
> 
> 
> 
> 
> 
> 
> Yahoo! Groups Links
> 
> 
> 
> 
> 


Rick Szajkowski VA3 RZS
Charlotte Darby VA3 CMR
Node Owners of IRLP Node 2120
Lakefield Ont Canada






 
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Re: [Repeater-Builder] CSC CWID-50B

[Mike Pugh]

kb6jst wrote:

>Hi,
>  I am looking into purchasing an outboard CW IDer for my IRLP node
>


>Also, any other suggestions?
>
ID8 from ComSpec. Comes with a small DTMF type pad that plugs into it to 
program it. Works great, and is about $65 or so depending on where you 
buy it. Mike





 
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Re: [Re: [Repeater-Builder] Motorola Motrac Radio]

[Neil McKie]

  That is what the regency FM set reminded me of when I looked 
 inside the case.  

Virden Clark Beckman wrote:
> 
> They or somethin very close made the uniden regency bearcat scanner
> stuff, maybe cb - you are talking those 11 meter am boxes right?
> 
> Neil McKie wrote:
> >
> >   Doesn't / didn't regency make scanners and CB's?
> >
> 
> --
> 73...Clark Beckman N8PZD
> 
> 
> Yahoo! Groups Links
> 
> 
> 
>




 
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Re: [Repeater-Builder] Re: GE phoenix UHF

[Russell Filling]

just  out  of curiosit   ,  how  do u program a  crystal ?  i have a
crystaled   GE phoenix  , not one with a  x2122 in it , i need to know the
frequency  mutliplier

Russ
N3TIH

- Original Message -
From: "wavecomm1" <[EMAIL PROTECTED]>
To: 
Sent: Tuesday, March 23, 2004 11:44 PM
Subject: [Repeater-Builder] Re: GE phoenix UHF


> need the programmer?
>
>
>
>
>
>
>
>
> Yahoo! Groups Links
>
>
>
>
>






 
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Re: [Repeater-Builder] Mountain top upside down antenna mounting info

[Kevin Custer]

Hellewell, Byron (Mission Systems) wrote:

>Hi
>  
>I am looking for suggestions from those who have had experience with upside
>down antennas.
>
>Wondered about shadowing of the mounting structure in the pattern.
>

I had excellent results with a Hustler G6-440 (uhf) station antenna side 
mounted and upside down on Mt. Davis (the highest point in Pennsylvania).
Shadowing of the tower was no different than when it was mounted 
upright, just better coverage down in the valleys.

Kevin Custer
443.725+ Mt. Davis PA.






 
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RE: [Repeater-Builder] DCI Filter on repeater

[Jeff DePolo]

Probably not.  All of the DCI window filters I've used generally have
good return loss; it should not "detune" your duplexer appreciably
provided it was originally tuned using good 50 ohm sources/terminations.
Check the total thru-loss with everything put together; if the loss is
equal to the sum of the losses of the components when tested
individually (including cable losses), then you should be good to go.

--- Jeff



> -Original Message-
> From: Robert W Burton [mailto:[EMAIL PROTECTED] 
> Sent: Wednesday, March 24, 2004 6:15 AM
> To: Repeater-Builder@yahoogroups.com
> Subject: [Repeater-Builder] DCI Filter on repeater
> 
> 
> Getting ready to put a DCI (UHF) filter on my repeater.  With 
> this in line, do I need to retune my rx side of the cans?  I 
> have the Mot. 4 can band pass/reject kind of cans (1506?). 
> Thanks, Robert
> 
> 
> 
> The best thing to hit the Internet in years - Juno SpeedBand! 
> Surf the Web up to FIVE TIMES FASTER! Only $14.95/ month - 
> visit www.juno.com to sign up today!
> 
> 
> 
> 
>  
> Yahoo! Groups Links
> 
> 
> 
>  
> 





 
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[Repeater-Builder] DCI Filter on repeater

[Robert W Burton]

Getting ready to put a DCI (UHF) filter on my repeater.  With this in
line, do I need to retune my rx side of the cans?  I have the Mot. 4 can
band pass/reject kind of cans (1506?).
Thanks,
Robert



The best thing to hit the Internet in years - Juno SpeedBand!
Surf the Web up to FIVE TIMES FASTER!
Only $14.95/ month - visit www.juno.com to sign up today!




 
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Re: [Repeater-Builder] CSC CWID-50B

[Mike WA6ILQ]

At 03:22 AM 3/23/04 +, you wrote:

>Hi,
>   I am looking into purchasing an outboard CW IDer for my IRLP node
>and have been thinking about the Control Signals CWID-50B.  Is
>anyone out there using this board?  And how do you program it?
>
>   Also, any other suggestions?
>
>Jim Kapphahn
>KB6JST

The CWID-50B is a commercial product that is not user friendly -
the timers are changed by changing resistors

It uses a PROM that the factory charges $30 or so to program...
I have not seen a reverse engineering of the PROM format that
would allow an end-user to reprogram the chip.

There are other products that will do a better job for
an amateur repeater.  If you are determined to get
an IDer-only product you can get the Communication
Specialists ID-8.

I'd look at an NHRC controller - the NHRC-2 is an
inexpensive kit.  In the $190 range you can get a
more capable controller - a NHRC 3 or 4.  Either
does a helluva lot more than just ID.
See http://www.nhrc.net

Mike WA6ILQ





 
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Re: [Repeater-Builder] CSC CWID-50B

[Eric Lemmon]

Jim,

I bought a MICOR repeater that had a CWID-50B installed, so I decided to
use it after conversion to the 2m band.  The ID is programmed into a
PROM that you must purchase from the factory for about $35.  This IDer
is commercial-grade, with all of the necessary features, and is a 1U
rack mount.  It is not very user-friendly, since the time delays are
adjusted by changing the values of fixed resistors.  If I had to buy an
IDer for a repeater, I'd buy a Communication Specialists ID-8.  It's
completely user-programmable and very reliable.  If the ID-8 was offered
in a simple rackmount model with screw terminals, I'd pay for the
"deluxe" version.

73, Eric Lemmon WB6FLY

kb6jst wrote:
> 
> Hi,
>   I am looking into purchasing an outboard CW IDer for my IRLP node
> and have been thinking about the Control Signals CWID-50B.  Is
> anyone out there using this board?  And how do you program it?
> 
>   Also, any other suggestions?
> 
> Jim Kapphahn
> KB6JST
> 
> 
> Yahoo! Groups Links
> 
> 
> 
>




 
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[Re: [Repeater-Builder] Motorola Motrac Radio]

[Laryn Lohman]

A big advantage of these for some people is the -sweet tube sound- 
which makes for great repeated audio, at least for my repeater.  And 
instant warm-up!!

Laryn K8TVZ


--- In Repeater-Builder@yahoogroups.com, Ken Arck <[EMAIL PROTECTED]> wrote:
> It depends on whether they're NPN or PNP tubes..
> 
> 
> At 02:06 PM 3/23/2004 -0800, you wrote:
> >
> >  How much warm up time do they need? 
> >
> >Ken Arck wrote:
> >> 
> >> At 08:18 AM 3/23/2004 -0800, you wrote:
> >> >The numbers that are on the three transistorized tubes are, if 
> >> >that is what they are, is M9394.
> >> 
> >> <---What the heck is a "transistorized tube"?? Are they round 
and 
> >> silver?
> >> 
> >> Ken
> >>
> 
--
> >> President and CTO - Arcom Communications
> >> Makers of state-of-the-art repeater controllers and accessories.
> >> http://www.ah6le.net/arcom/index.html
> >> AH6LE/R - IRLP Node 3000
> >> http://www.irlp.net
> >> 
> >> 
> >> Yahoo! Groups Links
> >> 
> >> 
> >> 
> >>
> >
> >
> >
> >
> > 
> >Yahoo! Groups Links
> >
> >
> >
> > 
> >
> 
--
> President and CTO - Arcom Communications
> Makers of state-of-the-art repeater controllers and accessories.
> http://www.ah6le.net/arcom/index.html
> AH6LE/R - IRLP Node 3000
> http://www.irlp.net





 
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Re: [Repeater-Builder] Re: Motrac / Solid State Tubes

[Mike Morris]

At 01:53 AM 3/24/04 +, you wrote:

>Perhaps the device referred to is the Nuvistor?
>
>These were used in VHF applications.  [e.g. 6CW4] They
>are metal and don't look all that different from early transistors.
>The size is similar also, the Nuvistor is 0.400" dia. and a TO-5 is
>0.335" diameter.

Memories -

My first VHF receiver was a 5-tube ACDC that I modded ...
I yanked the mixer tube and replaced it with a pair of 6CW4s...
a crystal oscillator / multiplier and a mixer.  I made it work
on K6MYKs AM repeater here in L.A

Mike WA6ILQ





 
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Re: [Repeater-Builder] Mountain top upside down antenna mounting info

[Mike WA6ILQ]

I'd contact SCALA antenna corp and tell them what you want to do.


Also look at the Phelps Dodge catalog (or whatever their name is
this week)  and look at the StormMaster series.

Either one will work just fine as they are made for the weather - but
they ain't cheap.

Mike WA6ILQ

At 01:48 PM 3/23/04 -0700, you wrote:

>Hi
>   I am doing some planning for an VHF repeater on the top of a
>9000 foot high mountain top.
>The coverage is to the valley floor about 4000 feet below the repeater site.
>
>To get good valley coverage I have been contemplating using a
>1/4 or 5/8 wave antenna mounted upside down.
>
>I am looking for suggestions from those who have had experience with upside
>down antennas.
>
>I know about the radome sealing problems and lightning protection.
>
>The antenna will also be subject to high winds and ice loading.
>
>Wondered about shadowing of the mounting structure in the pattern.
>
>Thanks for the help
>Byron
>
>
>
>
>
>
>Yahoo! Groups Links
>
>
>
>





 
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Re: [Re: [Re: [Repeater-Builder] Motorola Motrac Radio]]

[Mike Morris]

Here you go Ken...





Look at the top left of the picture in the top link for the 9-pin socket.




Mike WA6ILQ


At 05:21 PM 3/23/04 -0600, you wrote:

>PNP tube!!!  I've been waiting for them to make PNP tubes that are compliant
>to the Plug-n-play standard for Windows!!!
>
>Where do they attach to my computer?  Will windows recognize them or do I have
>to download additional drivers?
>
>Ken Arck <[EMAIL PROTECTED]> wrote:
>
> > It depends on whether they're NPN or PNP tubes..
> >
> >
> > At 02:06 PM 3/23/2004 -0800, you wrote:
> > >
> > >  How much warm up time do they need?
> > >
> > >Ken Arck wrote:
> > >>
> > >> At 08:18 AM 3/23/2004 -0800, you wrote:
> > >> >The numbers that are on the three transistorized tubes are, if
> > >> >that is what they are, is M9394.
> > >>
> > >> <---What the heck is a "transistorized tube"?? Are they round and
> > >> silver?
> > >>
> > >> Ken
> > >>
> >
>--
> > >> President and CTO - Arcom Communications
> > >> Makers of state-of-the-art repeater controllers and accessories.
> > >> http://www.ah6le.net/arcom/index.html
> > >> AH6LE/R - IRLP Node 3000
> > >> http://www.irlp.net
> > >>
> > >>
> > >> Yahoo! Groups Links
> > >>
> > >>
> > >>
> > >>
> > >
> > >
> > >
> > >
> > >
> > >Yahoo! Groups Links
> > >
> > >
> > >
> > >
> > >
> >
>--
> > President and CTO - Arcom Communications
> > Makers of state-of-the-art repeater controllers and accessories.
> > http://www.ah6le.net/arcom/index.html
> > AH6LE/R - IRLP Node 3000
> > http://www.irlp.net
> >
> >
> >
> >
> >
> > Yahoo! Groups Links
> >
> >
> >
> >
> >
> >
>
>
>
>
>
>
>
>
>Yahoo! Groups Links
>
>
>
>





 
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[Repeater-Builder] Re: GE phoenix UHF

[wavecomm1]

need the programmer?







 
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[Repeater-Builder] CSC CWID-50B

[kb6jst]

Hi,
  I am looking into purchasing an outboard CW IDer for my IRLP node 
and have been thinking about the Control Signals CWID-50B.  Is 
anyone out there using this board?  And how do you program it?

  Also, any other suggestions?

Jim Kapphahn
KB6JST






 
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RE: [Repeater-Builder] Re: Motrac / Solid State Tubes

[Bob Underwood]

There was a brief moment in time in the mid 1970's that
Teledyne made solid-state replacements for the 6AK5 and the 12AT7 called
Fetrons; they were essentially high voltage depletion mode JFETs. The
main customer was the phone company, and when they had replaced all their
tubes, the business dried up. (I was at National Semiconductor at the
time working on a similar device).

I don't think this has anything at all to do with the Motrac radio.

Bob Underwood
AA6BT

At 07:24 PM 3/23/04, you wrote:
The 6DW4 Nuvistor was a vacuum tube
in a metal case, filament, etc. RF amp
used in TV tuner and Sonar FS23 CB Base radio.   Seems like the
solid state
jobs replaced 12AT7, 6U8, etc.

But I may be wrong,

Steve
NU5D







 
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[Repeater-Builder] Re: [Motrac yada, yada, yada]

[Al Wolfe]

 Solid state tubes? Well, actually, someone used to sell "Tubesters",
solid state plug-in replacements for several of the receiver tubes in some
of the Collins and Drake equipment.
Never actually used any of the "Tubesters" but if someone wanted to
check some old QST's there may be some info on them.
Back in the 70's we put together a repeater on two meters made from a
mobile Motrac that kind of worked most of the time. I did put together a
seperate AC power supply for all the voltages.
Then we had a Compa-base (I think it was) as a packet digi that was
basically just a mobile Motrac LHT and a power supply in a box. It was old
when we were given it and it ran for another twenty years in some heavy
packet service on 145.01.  I think I replaced the final once. The driver
would probably play forever.


73,
Al, K9SI






 
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Re: [Repeater-Builder] Mitrek Rocks

[ke4vcv]

jeff,

I'm interested in the rocks...

thanks,
Andy
- Original Message -
From: "Jeff Otterson" <[EMAIL PROTECTED]>
To: 
Sent: Tuesday, March 23, 2004 6:10 PM
Subject: [Repeater-Builder] Mitrek Rocks


> I have some Mitrek channel elements for 442.05 T / 447.05 R that are
excess
> to my needs.  Before they go on Ebay, does anybody want them?  I'd take
$15
> for them, or trade for IC-7800.
>
> Jeff
>
>
>
>
>
>
> Yahoo! Groups Links
>
>
>
>
>
>
>





 
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RE: [Repeater-Builder] Re: Motrac / Solid State Tubes

[Steve S. Bosshard \(NU5D\)]

The 6DW4 Nuvistor was a vacuum tube in a metal case, filament, etc. RF amp
used in TV tuner and Sonar FS23 CB Base radio.   Seems like the solid state
jobs replaced 12AT7, 6U8, etc.

But I may be wrong,

Steve
NU5D







 
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Re: [Repeater-Builder] Re: Motrac / Solid State Tubes

[NØATH]

Like the  6DS4? 

- Original Message - 
From: "nj902" <[EMAIL PROTECTED]>
To: 
Sent: Tuesday, March 23, 2004 7:53 PM
Subject: [Repeater-Builder] Re: Motrac / Solid State Tubes


Perhaps the device referred to is the Nuvistor?

These were used in VHF applications.  [e.g. 6CW4] They
are metal and don't look all that different from early transistors. 
The size is similar also, the Nuvistor is 0.400" dia. and a TO-5 is
0.335" diameter.





 
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Re: [Re: [Repeater-Builder] Motorola Motrac Radio]

[Virden Clark Beckman]

They or somethin very close made the uniden regency bearcat scanner
stuff, maybe cb - you are talking those 11 meter am boxes right?

Neil McKie wrote:
> 
>   Doesn't / didn't regency make scanners and CB's?
> 

-- 
73...Clark Beckman N8PZD




 
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Re: [Repeater-Builder] Re: Motrac / Solid State Tubes

[Ken Arck]

At 01:53 AM 3/24/2004 -, you wrote:
>These were used in VHF applications.  [e.g. 6CW4] They
>are metal and don't look all that different from early transistors. 
>The size is similar also, the Nuvistor is 0.400" dia. and a TO-5 is
>0.335" diameter.

<---Nuvistors were noticeable taller, not to mention the two metal tabs
that extended below the base. Of course, they also got hot!

But you make a good point. I dunno.. maybe it's time to put this thread to
bed?

Ken
--
President and CTO - Arcom Communications
Makers of state-of-the-art repeater controllers and accessories.
http://www.ah6le.net/arcom/index.html
AH6LE/R - IRLP Node 3000
http://www.irlp.net




 
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Re: [Repeater-Builder] Mountain top upside down antenna mounting info

[Eric Lemmon]

Byron,

You did not state if omnidirectional coverage was required; if not, you
might consider a heavy-duty Yagi or corner reflector tilted down toward
the desired coverage area.  Another option is a Sinclair SRL-222 dual
dipole antenna set for elliptical pattern.  I have one of these in
hilltop service on 2m, and the close-in valley coverage is far superior
to that obtained with a vertical fiberglass antenna.

73, Eric Lemmon WB6FLY

"Hellewell, Byron (Mission Systems)" wrote:
> 
> Hi
>   I am doing some planning for an VHF repeater on the top of a
> 9000 foot high mountain top.
> The coverage is to the valley floor about 4000 feet below the repeater site.
> 
> To get good valley coverage I have been contemplating using a
> 1/4 or 5/8 wave antenna mounted upside down.
> 
> I am looking for suggestions from those who have had experience with upside
> down antennas.
> 
> I know about the radome sealing problems and lightning protection.
> 
> The antenna will also be subject to high winds and ice loading.
> 
> Wondered about shadowing of the mounting structure in the pattern.
> 
> Thanks for the help
> Byron
> 
> 
> Yahoo! Groups Links
> 
> 
> 
>




 
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[Repeater-Builder] Re: Motrac / Solid State Tubes

[nj902]

Perhaps the device referred to is the Nuvistor?

These were used in VHF applications.  [e.g. 6CW4] They
are metal and don't look all that different from early transistors. 
The size is similar also, the Nuvistor is 0.400" dia. and a TO-5 is
0.335" diameter.





 
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Re: [Re: [Re: [Repeater-Builder] Motorola Motrac Radio]]

[Neil McKie]

  I thought we had given you some very positive comments for 
 your project.  :( 

  Neil 

Mathew Quaife wrote:
> 
> I have scrped the idea of using the Motrac/Motran as a repeater 
> project.
> Thanks for all the input.
> 
> Mathew
> 
> - Original Message -
> From: "JOHN MACKEY" <[EMAIL PROTECTED]>
> To: 
> Sent: Tuesday, March 23, 2004 11:02 AM
> Subject: Re: [Re: [Re: [Repeater-Builder] Motorola Motrac Radio]]
> 
> > Can someone please explain to me what a "transistorized tube" is?
> >
> > Mathew Quaife <[EMAIL PROTECTED]> wrote:
> > > The numbers that are on the three transistorized tubes are, if that is
> >
> >




 
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Re: [Repeater-Builder] Mitrek Rocks

[Jeff Otterson]

The Mitrek channel elements are gone.

Thanks, everybody!

Jeff

At 06:10 PM 3/23/2004, you wrote:
>I have some Mitrek channel elements for 442.05 T / 447.05 R that are excess
>to my needs.  Before they go on Ebay, does anybody want them?  I'd take $15
>for them, or trade for IC-7800.
>
>Jeff
>
>
>
>
>
>
>Yahoo! Groups Links
>
>
>
>





 
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Re: [Repeater-Builder] GE phoenix UHF

[mch]

Then what you have is not a Phoenix - it's a Phoenix-S, -SX, PSX-200,
PSX-Scan, or PSX-SE. The original Phoenix (no suffix) does use crystals.

Joe M.

Rick - VA3RZS/Charlotte - VA3CMR wrote:
> 
> are you sure you need xtals ??
> 
> all mine are programable





 
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Re: [Repeater-Builder] Mitrek Rocks

[Jeff Otterson]

Yep.  I will send something to the list.

You were #4.  I see #5 in my inbox, too.

Thanks for askin'.

Jeff

At 08:27 PM 3/23/2004, you wrote:
> Jeff, has the elements been spoken for?
>
>Larry KB8VUM
>
>Jeff Otterson wrote:
> > I have some Mitrek channel elements for 442.05 T / 447.05 R that are 
> excess
> > to my needs.  Before they go on Ebay, does anybody want them?  I'd take 
> $15
> > for them, or trade for IC-7800.
> >
> > Jeff
> >
> >
> >
> >
> >
> >
> > Yahoo! Groups Links
> >
> >
> >
> >
> >
> >
>
>
>
>
>
>
>Yahoo! Groups Links
>
>
>
>





 
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Re: [Re: [Repeater-Builder] Motorola Motrac Radio]

[NØATH]

It seems there was a time when a man could have backed out gracefully.
Once upon a time.

- Original Message - 
From: "Mathew Quaife" <[EMAIL PROTECTED]>
To: 
Sent: Tuesday, March 23, 2004 4:21 PM
Subject: Re: [Re: [Repeater-Builder] Motorola Motrac Radio]


Yes, but so did Motorola and GE.  Regency made several products.  Why
you
ask?

- Original Message -
From: "Neil McKie" <[EMAIL PROTECTED]>
To: 
Sent: Tuesday, March 23, 2004 2:11 PM
Subject: Re: [Re: [Repeater-Builder] Motorola Motrac Radio]


>
>   Doesn't / didn't regency make scanners and CB's?
>
> Mathew Quaife wrote:
> >
> > Thanks for the input.  Gonna stick with the Regency until
something
better
> > comes along.  It is working, so is all i can expect.
> >
> > Mathew
> >
> > - Original Message -
> > From: "Ken Arck" <[EMAIL PROTECTED]>
> > To: 
> > Sent: Tuesday, March 23, 2004 9:34 AM
> > Subject: Re: [Re: [Repeater-Builder] Motorola Motrac Radio]
> >
> > > At 09:17 AM 3/23/2004 -0800, you wrote:
> > > >Just before the transistor, solid state tubes.  They are small
and
round.
> > >
> > > <---As I posted earlier, the only "solid state tubes" I can
think of
were
> > > actually "solid state" diodes that were made as replacements for
the
older
> > > vacuum tube rectifiers, such as the 5U4 series. I don't remember
ever
> > > seeing these type of replacements for tubes such as triodes,
pentodes
and
> > > so on. Anyway, those M9394's are transistors (germanium as I
recollect)
> > > that are part of the high voltage power supply and aren't RF
devices.
> > >
> > > But I suppose this is all moot - it would make a terrible
repeater in
any
> > > case :-)
> > >
> > > Ken
> >
> 
--
> > 
> > > President and CTO - Arcom Communications
> > > Makers of state-of-the-art repeater controllers and accessories.
> > > http://www.ah6le.net/arcom/index.html
> > > AH6LE/R - IRLP Node 3000
> > > http://www.irlp.net
> > >
> > >
> > >
> > >
> > >
> > > Yahoo! Groups Links
> > >
> > >
> > >
> > >
> > >
> >
> >
> > Yahoo! Groups Links
> >
> >
> >
> >
>
>
>
>
>
> Yahoo! Groups Links
>
>
>
>
>






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Re: [Repeater-Builder] Mitrek Rocks

[Larry Thomas]

Jeff, has the elements been spoken for?

Larry KB8VUM

Jeff Otterson wrote:
> I have some Mitrek channel elements for 442.05 T / 447.05 R that are excess 
> to my needs.  Before they go on Ebay, does anybody want them?  I'd take $15 
> for them, or trade for IC-7800.
> 
> Jeff
> 
> 
> 
> 
> 
>  
> Yahoo! Groups Links
> 
> 
> 
>  
> 
> 





 
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Re: [Re: [Repeater-Builder] Motorola Motrac Radio]

[Ken Arck]

At 04:53 PM 3/23/2004 -0800, you wrote:
>Ken
>I think you have been around as long as I (40+ years in electronics). 

<---Yes Tom. I have been around long enough to remember when "Sue" was a
noun and the Left was a direction you headed :-)

Thanks for update on Transtubes! 

Ken
--
President and CTO - Arcom Communications
Makers of state-of-the-art repeater controllers and accessories.
http://www.ah6le.net/arcom/index.html
AH6LE/R - IRLP Node 3000
http://www.irlp.net




 
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Re: [Re: [Repeater-Builder] Motorola Motrac Radio]

[Tom Manning]

Ken
I think you have been around as long as I (40+ years in electronics).  There
was a line of transistorized modules that took the place of tubes.  I cannot
remember the type numbers or manufacturor of them.  I have used several meters
that had been changed to transtubes such as the H.P. 400D voltmeter.  I remember
there was available a set of replacements for all the miniature tubes in the
Collins KWM-2.  The advantage of the transistorized replacements was lack of
constant changes due to cathode emission and thus lengthened the time between
calibration checks.
73's de Tom Manning, AF4UG
<[EMAIL PROTECTED]>

Ken Arck wrote:

> At 09:17 AM 3/23/2004 -0800, you wrote:
> >Just before the transistor, solid state tubes.  They are small and round.
>
> <---As I posted earlier, the only "solid state tubes" I can think of were
> actually "solid state" diodes that were made as replacements for the older
> vacuum tube rectifiers, such as the 5U4 series. I don't remember ever
> seeing these type of replacements for tubes such as triodes, pentodes and
> so on. Anyway, those M9394's are transistors (germanium as I recollect)
> that are part of the high voltage power supply and aren't RF devices.
>
> But I suppose this is all moot - it would make a terrible repeater in any
> case :-)
>
> Ken
> --
> President and CTO - Arcom Communications
> Makers of state-of-the-art repeater controllers and accessories.
> http://www.ah6le.net/arcom/index.html
> AH6LE/R - IRLP Node 3000
> http://www.irlp.net
>
>
> Yahoo! Groups Links
>
>
>
>





 
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Re: [Re: [Re: [Repeater-Builder] Motorola Motrac Radio]]

[JOHN MACKEY]

Likewise, I have only worked on a few Regency's & was not impressed at any of
them.  ONE exception, the old 10 channel Regency crystal scanners seem to work
OK as weather broadcast monitors.  I am setting one of those up at my FM radio
station for a dedicated receiver for the NWS.

The current radio shack monitor looses it's frequency every time power goes
out, and that is extremely inconvienent.


Neil McKie <[EMAIL PROTECTED]> wrote:
>   The only regency FM radio I ever had the (???) to service, I was 
>  not impressed with the internal quqlity - at all !!! 
> 
>   Neil 
> 
> Mathew Quaife wrote:
> > 
> > Yes, but so did Motorola and GE.  Regency made several products.  
> > Why you ask? 
> > 
> > - Original Message -
> > From: "Neil McKie" <[EMAIL PROTECTED]>
> > To: 
> > Sent: Tuesday, March 23, 2004 2:11 PM
> > Subject: Re: [Re: [Repeater-Builder] Motorola Motrac Radio]
> > 
> > >
> > >   Doesn't / didn't regency make scanners and CB's?
> > >
> > > Mathew Quaife wrote:
> > > >
> > > > Thanks for the input.  Gonna stick with the Regency until something
> > better
> > > > comes along.  It is working, so is all i can expect.
> > > >
> > > > Mathew
> > > >
> > > > - Original Message -
> > > > From: "Ken Arck" <[EMAIL PROTECTED]>
> > > > To: 
> > > > Sent: Tuesday, March 23, 2004 9:34 AM
> > > > Subject: Re: [Re: [Repeater-Builder] Motorola Motrac Radio]
> > > >
> > > > > At 09:17 AM 3/23/2004 -0800, you wrote:
> > > > > >Just before the transistor, solid state tubes.  They are small and
> > round.
> > > > >
> > > > > <---As I posted earlier, the only "solid state tubes" I can think
of
> > were
> > > > > actually "solid state" diodes that were made as replacements for
the
> > older
> > > > > vacuum tube rectifiers, such as the 5U4 series. I don't remember
ever
> > > > > seeing these type of replacements for tubes such as triodes,
pentodes
> > and
> > > > > so on. Anyway, those M9394's are transistors (germanium as I
> > recollect)
> > > > > that are part of the high voltage power supply and aren't RF
devices.
> > > > >
> > > > > But I suppose this is all moot - it would make a terrible repeater
in
> > any
> > > > > case :-)
> > > > >
> > > > > Ken
> > > >
> > >
--
> > > > 
> > > > > President and CTO - Arcom Communications
> > > > > Makers of state-of-the-art repeater controllers and accessories.
> > > > > http://www.ah6le.net/arcom/index.html
> > > > > AH6LE/R - IRLP Node 3000
> > > > > http://www.irlp.net
> > > > >
> > > > >
> > > > >
> > > > >
> > > > >
> > > > > Yahoo! Groups Links
> > > > >
> > > > >
> > > > >
> > > > >
> > > > >
> > > >
> > > >
> > > > Yahoo! Groups Links
> > > >
> > > >
> > > >
> > > >
> > >
> > >
> > >
> > >
> > >
> > > Yahoo! Groups Links
> > >
> > >
> > >
> > >
> > >
> > 
> > 
> > Yahoo! Groups Links
> > 
> > 
> > 
> >
> 
> 
> 
> 
>  
> Yahoo! Groups Links
> 
> 
> 
>  
> 
> 







 
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Re: [Re: [Repeater-Builder] Motorola Motrac Radio]

[Neil McKie]

  Oh ... 


Ken Arck wrote:
> 
> It depends on whether they're NPN or PNP tubes..
> 
> At 02:06 PM 3/23/2004 -0800, you wrote:
> >
> >  How much warm up time do they need?
> >
> >Ken Arck wrote:
> >>
> >> At 08:18 AM 3/23/2004 -0800, you wrote:
> >> >The numbers that are on the three transistorized tubes are, if
> >> >that is what they are, is M9394.
> >>
> >> <---What the heck is a "transistorized tube"?? Are they round and
> >> silver?
> >>
> >> Ken
> >>
>




 
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Re: [Re: [Repeater-Builder] Motorola Motrac Radio]

[Neil McKie]

  I have some toob stuff here - just for you Ken, 

  Neil 


Ken Arck wrote:
> 
> At 09:17 AM 3/23/2004 -0800, you wrote:
> >Just before the transistor, solid state tubes.  They are small and round.
> 
> <---As I posted earlier, the only "solid state tubes" I can think of were
> actually "solid state" diodes that were made as replacements for the older
> vacuum tube rectifiers, such as the 5U4 series. I don't remember ever
> seeing these type of replacements for tubes such as triodes, pentodes and
> so on. Anyway, those M9394's are transistors (germanium as I recollect)
> that are part of the high voltage power supply and aren't RF devices.
> 
> But I suppose this is all moot - it would make a terrible repeater in any
> case :-)
> 
> Ken
> --
> President and CTO - Arcom Communications
> Makers of state-of-the-art repeater controllers and accessories.
> http://www.ah6le.net/arcom/index.html
> AH6LE/R - IRLP Node 3000
> http://www.irlp.net
> 
> 
> Yahoo! Groups Links
> 
> 
> 
>




 
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Re: [Re: [Repeater-Builder] Motorola Motrac Radio]

[Neil McKie]

  The only regency FM radio I ever had the (???) to service, I was 
 not impressed with the internal quqlity - at all !!! 

  Neil 

Mathew Quaife wrote:
> 
> Yes, but so did Motorola and GE.  Regency made several products.  
> Why you ask? 
> 
> - Original Message -
> From: "Neil McKie" <[EMAIL PROTECTED]>
> To: 
> Sent: Tuesday, March 23, 2004 2:11 PM
> Subject: Re: [Re: [Repeater-Builder] Motorola Motrac Radio]
> 
> >
> >   Doesn't / didn't regency make scanners and CB's?
> >
> > Mathew Quaife wrote:
> > >
> > > Thanks for the input.  Gonna stick with the Regency until something
> better
> > > comes along.  It is working, so is all i can expect.
> > >
> > > Mathew
> > >
> > > - Original Message -
> > > From: "Ken Arck" <[EMAIL PROTECTED]>
> > > To: 
> > > Sent: Tuesday, March 23, 2004 9:34 AM
> > > Subject: Re: [Re: [Repeater-Builder] Motorola Motrac Radio]
> > >
> > > > At 09:17 AM 3/23/2004 -0800, you wrote:
> > > > >Just before the transistor, solid state tubes.  They are small and
> round.
> > > >
> > > > <---As I posted earlier, the only "solid state tubes" I can think of
> were
> > > > actually "solid state" diodes that were made as replacements for the
> older
> > > > vacuum tube rectifiers, such as the 5U4 series. I don't remember ever
> > > > seeing these type of replacements for tubes such as triodes, pentodes
> and
> > > > so on. Anyway, those M9394's are transistors (germanium as I
> recollect)
> > > > that are part of the high voltage power supply and aren't RF devices.
> > > >
> > > > But I suppose this is all moot - it would make a terrible repeater in
> any
> > > > case :-)
> > > >
> > > > Ken
> > >
> > --
> > > 
> > > > President and CTO - Arcom Communications
> > > > Makers of state-of-the-art repeater controllers and accessories.
> > > > http://www.ah6le.net/arcom/index.html
> > > > AH6LE/R - IRLP Node 3000
> > > > http://www.irlp.net
> > > >
> > > >
> > > >
> > > >
> > > >
> > > > Yahoo! Groups Links
> > > >
> > > >
> > > >
> > > >
> > > >
> > >
> > >
> > > Yahoo! Groups Links
> > >
> > >
> > >
> > >
> >
> >
> >
> >
> >
> > Yahoo! Groups Links
> >
> >
> >
> >
> >
> 
> 
> Yahoo! Groups Links
> 
> 
> 
>




 
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Re: [Re: [Repeater-Builder] Motorola Motrac Radio]

[Micheal Salem]

I think that it could be made to work, but you would have to split
the radio apart and separate the transmitter and receiver and
probably put them in separate RF tight boxes boxes and use
feed-through capacitors and filtering networks.

The boxes would need to be completely shielded and you probably
would need a couple of stages of feed-through capacitors and
choke stages to bring the signals out.  If you put the volume
control and squelch control inside the box, that saves three or
four wires.

Motorola uses three feed-through to ground with two series
chokes and completely separated barriers compartments in their
older motrac base stations to keep their VHF stations free of
desense.

I have done a little of this, switching around receivers
from mobiles into motrac base stations to convert them to
repeaterreceivers.  I bought the feed-throughs and the
chokes and built the stages.

This is possible, but it really may be more trouble than
it is worth.  It probably would be a better idea to find
something else, but start this project as a long term
learning exercise.

Micheal Salem N5MS





Neil McKie wrote:
>   You bet ... if it happens you need the diagrams of the Motran, I 
>  probably have them here. 
> 
>   Best of luck on your connty assigned project. 
> 
>   Neil - WA6KLA 
> 
> 
> Mathew Quaife wrote:
> 
>>Hi Niel, yes I think it is the Motran, as there are no tubes in this critter
>>at all.  But seems more work than it's worth.  It was donated for use on the
>>repeater that I am building for the county, will be thier first 2 meter
>>repeater, and it's all out of my pocket.  I bought a couple of Regency
>>repeaters, disabled the controller inside and used the transmitter and
>>reciever and connected them to an RLC4 controller, seems to work ok.
>>Thought on the Motorola was to eliminate the need for the external
>>amplifier, but it all matches, so will see if all comes together when I put
>>it on the air here in a few weeks.  Thanks for the input.
>>
>>Mathew
>>
>>- Original Message -
>>From: "Neil McKie" <[EMAIL PROTECTED]>
>>To: 
>>Sent: Tuesday, March 23, 2004 12:04 PM
>>Subject: Re: [Re: [Repeater-Builder] Motorola Motrac Radio]
>>
>>
>>>Mathew Quaife wrote:
>>>
This one has the three small transistorized finals on the right
back side.
>>>
>>>  By your description, that sounds like a T43MSN Motran.
>>>
>>>
>>>
As far as numbers on the unit, don't find anything that meets the
model numbers that's been mentioned.  Might be easier to just
locate one of the GE Mastr II and work with that.  Right now I
have the regency up and running, but the thougth was if I could
convert a 100 watt radio, could do away with the amplifier.
>>>
Thanks to the many that answered the call on this radio, but soulds
like more headache than it would be worth.  I do know that the
manufacutre date on it is 1968, if that tells anymore about it. But
let me ask, when we talk tubes, are we referring to glass tubes, or
the later solid state tubes they came out with.

Mathew
>>>
>>>  Neil
>>>
>>>
>>>
- Original Message -
From: "JOHN MACKEY" <[EMAIL PROTECTED]>
To: 
Sent: Monday, March 22, 2004 4:23 PM
Subject: Re: [Re: [Repeater-Builder] Motorola Motrac Radio]


>A high band motrac would be something like U43LHT or U43MHT, where the

High

>band Motran would be something like U43LLT or U43MSN.
>
>mch <[EMAIL PROTECTED]> wrote:
>
>
>>That would be the MOTRAN. They have a boat
>>load of round transistors in the final area.
>>
>>They used the same accessories as the MOTRAC.
>>
>>Or are you saying there really were MOTRACs with no tubes?
>>
>>Joe M.
>>
>>Micheal Salem wrote:
>>
>>>Matthew:
>>>
>>>There are later versions of the Motrac which would be all
>>>solid state.  A model number for a motrac would start
>>>with U23, U43, U53, etc.  The tube versions would end
>>>with HHT, for example.  I think that the solid state
>>>version would be a MHT or perhaps an LHT so that the
>>>solid model would be something like U43MHT.
>





 
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