Re: [Repeater-Builder] TM-241A audio to external tone decoder

[Paul Kelley]

Yes, I know Mark.  I don't need it to transmit, just monitor 
a frequency and only for a few weeks.  Fortunately I'm at a 
really quiet site so the receiver doesn't get crunched.  
Getting tone decode to work reasonably well was cured by 
using speaker audio... guess this is one of those typical 
ham rigs that doesn't filter out the tones from the RX 
audio.  Come to think of it I had noticed while using it at 
home that I could hear tones from some people sneaking 
through that RX.

Paul,  N1BUG


On Sunday 07 August 2005 10:26 pm, Mark A. Holman wrote:
> TM-241 a were not designed as a repeater use reciever or
> has the capability to hold XMIT until the RF Module  SAV
> 217 or was it SAV 218 ?? takes a dive, no fan BTW only
> good for 5 watt packet radio or sell to a newbie ham .
>
> Mark AB8RRU





 
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Re: [Repeater-Builder] TM-241A audio to external tone decoder

[Paul Kelley]

Thanks Paul.  Just getting a chance to catch up on mail 
here.  Speaker audio does seem to work better in this case, 
which surprises me.  Whatever works!  Thanks for the help.

Paul,  N1BUG


On Sunday 07 August 2005 08:34 am, Paul Holm wrote:
> We had similar difficulties with a 241 and an external
> tone board using the audio from the mic connector.  We
> switched to using the ext. speaker jack for an audio
> connection and it worked much better.
>
> Paul - KC0HST





 
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[Repeater-Builder] Re: Adding a Radio to a Repeater Antenna

[Eric Meth]

Laryn.
The best way to do it is to install a multicoupler, tuned to your 
simplex frequency 446.925 between the duplexer and the antenna. The 
multicoupler has a frequency seperation of at least 1 MHz so it will 
not interfere with the 452/458 MHz frequencies. Insertion loss on 446 
will be approximately 3 db. The following is a line drawing attempt:

Duplexer - multicoupler - Antenna
  |   | |
452tx 458rx446.925 tr 

A Sinclair multicoupler model C3037 could cost (used) about $300-
400USD, has type N female connectors on all 3 ports. The ports are 
Antenna In, Feedthrough out, equipment in/out. Specifications can be 
found at:
http://www.sinctech.com/catalog/resources/pdf/C3037-DI.pdf
 That will do the job properly and should not affect the commercial 
system. It also assumes the commercial antenna works at 446 MHz as
well.

Eric Meth - ve3ei
Niagara on the Lake, ON
CANADA


> H  This answer is intriguing, and got me thinking.  If I'd
> want to add a simplex base on 446.925mc to an antenna system now
> supporting a repeater on 452.800tx/457.800rx, what is the best way
to
> do that?  The repeater has a TxRx 4 cavity duplexer on it.  
> 
> Thanks in advance.
> 
> Laryn K8TVZ







 
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Re: [Repeater-Builder] Re: shield this foreign broadcast ??

[Jim B.]

Ken Arck wrote:

> At 03:54 PM 8/5/2005 -0400, you wrote:
> 
>>Yeah, it actually happend to us, with a Micor rx mounted in a 
>>non-unified chassis separated from the rest of the base. Other then the 
>>pop-on shield on top, no other shielding except the rack cabinet, and 
>>when the ground got pulled off, we started hearing a SW station, 
>>although it sounded so bad, and it was strictly voice, we thought it was 
>>an off-freq signal, or intermod, until I started poking around and could 
>>hear it on my service montitor. I put two and two together, re-did the 
>>grounds, and it went away. That's been a couple years now...
> 
> 
> <--As I said, live and learn! So how far away from the receiver was the SW
> station? 
> 
> Ken

Don't remember exactly where it was, but it was at least 400-500 miles 
away.
(The receiver is on top of a 170-something foot building, so it has some 
altitude.)
-- 
Jim Barbour
WD8CHL





 
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Re: [Repeater-Builder] TM-241A audio to external tone decoder

[Jim B.]

Paul Kelley wrote:

> I am wanting to temporarily use a Kenwood TM-241A radio at a 
> repeater site... not for a repeater receiver but for 
> something fairly "mission critical".  I fed the audio 
> output available at the mic connector to a TS-32P and it 
> seemed to decode fine at first.  I have now found it 
> decodes signals from some radios and not from others.  Not 
> sure if the audio level is borderline (too low) or if the 
> audio from that point may be after a high pass filter in 
> the radio or what???  Any hints?  I am on my way back to 
> the site to mess with it some more but will check back with 
> email in a couple of hours.
> 
> Paul,  N1BUG

That audio is after the high-pass filtering that specifically filters 
out CTCSS. The easiest thing to find would be to go to the high side of 
the volume control pot (not the wiper), and see how that works. It's 
most likely raw discriminator audio.

-- 
Jim Barbour
WD8CHL





 
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[Repeater-Builder] decibel db-224 (vhf) drawings)

[skipp025]

Would anyone be interested in drawings of the Decibel 
DB-224-A (150-160MHz) & DB-224-E (138-150MHz) Antennas? 

Like the previous UHF Decibel Antenna drawings scanned 
into pdf file and available on my sonic page and the 
Repeater Builder site, these are available free. 

Reply direct to me or wait for Mike to get the copies 
I've emailed to him up on the RB-Site. I'll also have 
them up on the sonic page in a week or so... 

cheers
skipp 

skipp025 at yahoo.com 
www.radiowrench.com/sonic 






 
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[Repeater-Builder] Re: tx combiner follow up...

[vintageaudio2004]

Hi Skipp,

Thanks for your reply. At the moment we had to return to Caracas and
left the system operating with just one traffic channel, plus the
control channel. The customer said that at the moment usage will be
very light, and only a single user group will be active. So not much
operational impact for the moment, and since the system coverage is
much more than the customer anticipated, at least in that respect they
are very happy.

We are planning to return in 2-3 weeks time, which we already had to
do in order to bring the tower ground system up to snuff, as the
present one is not so good. This tower was formerly in use by the
cellular company, but has not been used for a few years now, and was
basically abandoned by them. Since it is located inside our customer's
property he indicated that he wanted us to use it, if viable.
Preliminary observations indicated that the structure is in good
shape, only the grounding system requires attention.

Now that I've had some time to go through in my mind all the tests
that we've done and the many good suggestions and information
received, I've come up with a few possible strategies which I wanted
to present to the persons that where kind enough to lend their help,
so as to get some more opinions on which would be the most viable path
to follow for a solution. In the next few hours I am going to compose
a message that I will post on the group, so other readers can also
benefit from whatever solution comes up, and also email a copy to
other persons that are contributing towards hopefully finding the most
appropriate solution. So far I am quite confident that the IM products
are being generated in the RX path, probably even right in each
receiver, but I will elaborate on my conclusions a bit later when I
post said message.

Thanks again for all your help. It is always very comforting to have
knowledgeable people lend a hand in these cases where one is stranded
in the middle of nowhere, and with this kind of problems.

Also many thanks to everyone else that chipped in with suggestions and
information. Be assured that I've read your messages and I will try to
get back to all of you individually and reply to your postings -in the
next few hours as time permits. I just don't wanted to send you a
quick reply, but rather answer every posting in depth.

Catch you all later. What a great group.

Alex

--- In Repeater-Builder@yahoogroups.com, "skipp025" <[EMAIL PROTECTED]> wrote:
> No problem Alex, you should normal up the system 
> and route the output of tx 6 to another lower test 
> antenna through/from its respective combiner bp 
> cavity before the N-way box (& cap the unused box 
> port). Don't forget to disable the rx system preamp. 
> 
>   
> 
> I was an FTR for "big M Radio Company" Service 
> Stations for man years. 
> 
> One thing we all knew was how quick the sales folks 
> would sign off on a project that promissed the moon. 
> ... as long as the sales (and engineering) person got 
> paid or made the sale possible.  After that it was 
> all finger pointing... 
> 
> The pain in the a$$ is when there are lots of 
> problems to point your fingers at.  You probably have 
> more than one gator by the tail.  If the numbers 
> don't score any direct imd or mix hits, you can 
> have better hope for a practical solution... 
> 
> cheers,
> skipp








 
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[Repeater-Builder] Decibel Dipole "stiffeners" mod

[skipp025]

John B. and I have been having a quick chat in regards 
to the Decibel DB-224 antennas.  John mentions something 
interesting I thought would be worth posting back to 
the group. 

" we have found that to make these exposed element 
antennas last more than a year or two around here, I 
have taken to making "stiffeners" that I usually put 
about half-way-up and half-way-down each of the loops 
from the mast connection points." 

Which is a great idea I never thought much about before 
today. While we don't have the weather extremes in California 
it would be nice to extend an antennas lifespan where possible.
 A few years ago we had a large bird of prey fly into one 
antenna and actually snap off a dipole element. We found the 
bird and the element near the base of the tower. Not to mention 
birds do land on the tower and antennas. 

"I'll see if I can photo one, or do a really good sketch
of these thingies that others might find useful.  (Last
year I replaced the 16/76 antenna atop Terry Peak -
see attached photo - as the wind had bent the bottom
mast section.  Unfortunately the angle from which the
photo was taken doesn't really show how much the
bottom mast section - the reinforced part - was
bent.  This same wind seems to cause the loops to
vibrate, and then breaks the Heli-arc'd joints.  We
also use stainless steel screw-type hose clamps to 
tie the harness to the mast for the same reason.
Ah,-  life at 7,200 ft in the Black Hills!)
Great job, and thanks again!
73 de John  WB6GHA"

You'd have to use a material with a low D-Factor, but a 
hard type dipole reinforcement is a pretty good idea.  
The Bluewave Company at the Las Vegas IWCE Convention 
has extreme weather antennas on display. I really like 
the rugged construction but the cost is at least double 
the Decibel & Sinclair equivalent.  

I'll keep the California earthquakes... you guys can keep 
the snow and hurricanes. 

Cheers, 
skipp 
www.radiowrench.com/sonic 






 
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Re: [Repeater-Builder] decibel db-224 (vhf) drawings)

[Paul Guello]

Yes, I'd like to see them.  Paul kb9wlc

--- skipp025 <[EMAIL PROTECTED]> wrote:

> Would anyone be interested in drawings of the
> Decibel 
> DB-224-A (150-160MHz) & DB-224-E (138-150MHz)
> Antennas? 
> 
> Like the previous UHF Decibel Antenna drawings
> scanned 
> into pdf file and available on my sonic page and the
> 
> Repeater Builder site, these are available free. 
> 
> Reply direct to me or wait for Mike to get the
> copies 
> I've emailed to him up on the RB-Site. I'll also
> have 
> them up on the sonic page in a week or so... 
> 
> cheers
> skipp 
> 
> skipp025 at yahoo.com 
> www.radiowrench.com/sonic 
> 
> 
> 
> 
> 
> 
>  
> Yahoo! Groups Links
> 
> 
> [EMAIL PROTECTED]
> 
>  
> 
> 
> 


__
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Tired of spam?  Yahoo! Mail has the best spam protection around 
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[Repeater-Builder] Re: tx combiner follow up... thanks to everyone

[vintageaudio2004]

Note: apologies if this is message ends up as a duplicate posting.
Just sent the original over an hour ago and it still has not shown up
on the listing.
==

Hi Skipp,

Thanks for your reply. At the moment we had to return to Caracas and
left the system operating with just one traffic channel, plus the
control channel. The customer said that at the moment usage will be
very light, and only a single user group will be active. So not much
operational impact for the moment, and since the system coverage is
much more than the customer anticipated, at least in that respect they
are very happy.

We are planning to return in 2-3 weeks time, which we already had to
do in order to bring the tower ground system up to snuff, as the
present one is not so good. This tower was formerly in use by the
cellular company, but has not been used for a few years now, and was
basically abandoned by them. Since it is located inside our customer's
property he indicated that he wanted us to use it, if viable.
Preliminary observations indicated that the structure is in good
shape, only the grounding system requires attention.

Now that I've had some time to go through in my mind all the tests
that we've done and the many good suggestions and information
received, I've come up with a few possible strategies which I wanted
to present to the persons that where kind enough to lend their help,
so as to get some more opinions on which would be the most viable path
to follow for a solution. In the next few hours I am going to compose
a message that I will post on the group, so other readers can also
benefit from whatever solution comes up, and also email a copy to
other persons that are contributing towards hopefully finding the most
appropriate solution. So far I am quite confident that the IM products
are being generated in the RX path, probably even right in each
receiver, but I will elaborate on my conclusions a bit later when I
post said message.

Thanks again for all your help. It is always very comforting to have
knowledgeable people lend a hand in these cases where one is stranded
in the middle of nowhere, and with this kind of problems.

Also many thanks to everyone else that chipped in with suggestions and
information. Be assured that I've read your messages and I will try to
get back to all of you individually and reply to your postings -in the
next few hours as time permits. I just don't wanted to send you a
quick reply, but rather answer every posting in depth.

Catch you all later. What a great group.

Alex

--- In Repeater-Builder@yahoogroups.com, "skipp025" <[EMAIL PROTECTED]> wrote:
> No problem Alex, you should normal up the system 
> and route the output of tx 6 to another lower test 
> antenna through/from its respective combiner bp 
> cavity before the N-way box (& cap the unused box 
> port). Don't forget to disable the rx system preamp. 
> 
>   
> 
> I was an FTR for "big M Radio Company" Service 
> Stations for man years. 
> 
> One thing we all knew was how quick the sales folks 
> would sign off on a project that promissed the moon. 
> ... as long as the sales (and engineering) person got 
> paid or made the sale possible.  After that it was 
> all finger pointing... 
> 
> The pain in the a$$ is when there are lots of 
> problems to point your fingers at.  You probably have 
> more than one gator by the tail.  If the numbers 
> don't score any direct imd or mix hits, you can 
> have better hope for a practical solution... 
> 
> cheers,
> skipp









 
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[Repeater-Builder] Slightly OT - Remember the TV Series 'Emergency'?

[Neil McKie]

  http://www.policeinterceptor.com/sounds/sta050.wav

  Turn on your speakers ...

  Neil McKie





 
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[Repeater-Builder] Changing Decibel Antenna frequency ranges.

[skipp025]

[paste]

> Would certainly be interested in the drawings of the 
> DB-224-E if it is fully dimensioned for the dipoles 
> /spaceing and the harness leg lengths. I have a 224 
> cut for 166 that I would like to try to mod. into 
> the 2 meter range. Doug  N3dab 

Yes, the dipoles are dimensioned out. I also have 
some higher range antennas I would like to move down 
in frequency.  

As you'll see in the drawings, the dipole element 
lengths change with the band segment.  You would need 
to add length to the dipoles before you even mess with 
the coax harness.  Notations for the harnesses are 
made, but I didn't really want to get into too much 
detail with lengths... just making notes on the dB 
coax part numbers and a basic picture. 

cheers,
skipp 







 
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Re: [Repeater-Builder] Slightly OT - Remember the TV Series 'Emergency'?

[mch]

It was Station 51, not 50.

Joe M.

Neil McKie wrote:
> 
>   http://www.policeinterceptor.com/sounds/sta050.wav
> 
>   Turn on your speakers ...
> 
>   Neil McKie





 
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Re: [Repeater-Builder] Slightly OT - Remember the TV Series 'Emergency'?

[Neil McKie]

  Here is more ...  http://www.policeinterceptor.com/emerg.htm 

  Scroll to near the bottom of the page ... 

  Neil M. 

mch wrote:
> 
> It was Station 51, not 50.
> 
> Joe M.
> 
> Neil McKie wrote:
> >
> >   http://www.policeinterceptor.com/sounds/sta050.wav
> >
> >   Turn on your speakers ...
> >
> >   Neil McKie
> 
> 
> Yahoo! Groups Links
> 
> 
> 
>





 
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[Repeater-Builder] Re: tx combiner follow up... UPDATE

[vintageaudio2004]

--- In Repeater-Builder@yahoogroups.com, "skipp025" <[EMAIL PROTECTED]>
wrote:
> The obvious first task would be to run the frequencies 
> through one of the IMD calc programs and see what mix 
> hits you end up with for the frequencies in use.

Hi Skipp,

Yes we had purchased the Intermodulation Products Module plus the
Terrain Analysis Package +etc's, from Softwright (softwright.com) and
where planning to do so, but never got to it since both Sinclair and
Telewave ran their IM tests independently and confirmed that no
problems where evident with the proposed frequency plan. Unfortunately
our intentions of running our own analysis got buried beneath a very
hectic preparation period prior to leaving for the installation of the
system. You see, the site is a 2-day travel distance away by car, and
there where a lot of things to plan, and not much time to do it.

Still another member of this group was nice enough to run his own
analysis and posted the results here:

http://groups.yahoo.com/group/Repeater-Builder/message/52928

Regards,
Alex 









 
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[Repeater-Builder] Air Variable Capacitors for DB4060

[Mike Besemer \(WM4B\)]

Greetings all,

I need two air variable capacitors for our DB4060 cans.  I contacted the
company who bought out DB Products and was informed that they don't sell
parts... but if they did, the price would be $41 each for the caps!

The caps are Johanson 5602 (www.johansonmfg.com) 1 - 30 pf air variables.  I
requested a quote from Arizona Components Company and one other place, but
expect the get the 'we don't sell in small quantity' response.  Google
hasn't been much help either. 

Does anybody have a couple of these in your pocket or know where I can get
my hands on a couple of them.  What about ideas for suitable subs?  

-- de WM4B
Mike
Kathleen, GA






 
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Re: [Repeater-Builder] Air Variable Capacitors for DB4060

[DCFluX]

May I suggest a GE MASTR II VHF Channel element.

On 8/8/05, Mike Besemer (WM4B) <[EMAIL PROTECTED]> wrote:
> Greetings all,
> 
> I need two air variable capacitors for our DB4060 cans.  I contacted the
> company who bought out DB Products and was informed that they don't sell
> parts... but if they did, the price would be $41 each for the caps!
> 
> The caps are Johanson 5602 (www.johansonmfg.com) 1 - 30 pf air variables.  I
> requested a quote from Arizona Components Company and one other place, but
> expect the get the 'we don't sell in small quantity' response.  Google
> hasn't been much help either.
> 
> Does anybody have a couple of these in your pocket or know where I can get
> my hands on a couple of them.  What about ideas for suitable subs?
> 
> -- de WM4B
> Mike
> Kathleen, GA
> 
> 
> 
> 
> 
> 
> 
> Yahoo! Groups Links
> 
> 
> 
> 
> 
> 
> 
>




 
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[Repeater-Builder] Re: Air Variable Capacitors for DB4060

[skipp025]

http://www.johansonmfg.com/ 

>  "Mike Besemer \(WM4B\)" <[EMAIL PROTECTED]> wrote:
> Greetings all,
> I need two air variable capacitors for our DB4060 
> cans.  I contacted the company who bought out DB Products 

That would be Andrew... 

> and was informed that they don't sell parts... but if 
> they did, the price would be $41 each for the caps!
> The caps are Johanson 5602 (www.johansonmfg.com) 1 - 30 
> pf air variables. I requested a quote from Arizona 
> Components Company and one other place, but expect the 
> get the 'we don't sell in small quantity' response.  
> Google hasn't been much help either. 
> 
> Does anybody have a couple of these in your pocket or 
> know where I can get my hands on a couple of them.  
> What about ideas for suitable subs?  

EF Johnson PC board variables also work well. You can 
also use coax or a plastic rod for similar results 
a'la Wacomm. 

> -- de WM4B
> Mike
> Kathleen, GA 


skipp 







 
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[Repeater-Builder] spamming from REPEATER-BUILDER email addresses

[Coy Hilton]

I just received an email with the subjectt line:
Re: [Repeater-Builder] Re: Fw: ICM Customer Service

it was some dirt bag selling "Store for Precious and Semi Precious
Gemstones".

watch out!

73
AC0Y








 
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[Repeater-Builder] Re: Air Variable Capacitors for DB4060

[nj902]

--- In Repeater-Builder@yahoogroups.com, "Mike Besemer \(WM4B\)"
<[EMAIL PROTECTED]> wrote:
"...I need two air variable capacitors for our DB4060 cans.  ..."
__

You might check with Bob at Surplus Sales:

http://www.surplussales.com/Variables/PistonTrimmers/PistCap1.html






 
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Re: [Repeater-Builder] Re: Air Variable Capacitors for DB4060

[Scott]

Mike

If Surplus Sales doesn't work out and since you have a Johanson part number, 
I suggest that you call  Johanson and ask for RF Sales-then plead your 
case for a couple of samples which they will probably send to you for 
nothing.

Scott


- Original Message - 
From: "nj902" <[EMAIL PROTECTED]>
To: 
Sent: Monday, August 08, 2005 5:04 PM
Subject: [Repeater-Builder] Re: Air Variable Capacitors for DB4060


> --- In Repeater-Builder@yahoogroups.com, "Mike Besemer \(WM4B\)"
> <[EMAIL PROTECTED]> wrote:
> "...I need two air variable capacitors for our DB4060 cans.  ..."
> __
>
> You might check with Bob at Surplus Sales:
>
> http://www.surplussales.com/Variables/PistonTrimmers/PistCap1.html
>
>
>
>
>
>
>
> Yahoo! Groups Links
>
>
>
>
>
>
> 






 
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Re: [Repeater-Builder] Slightly OT - Remember the TV Series 'Emergency'?

[Mark A. Holman]

I can still recall the tones like it was yesterday !  COOL !  8-) 

mch wrote:

  It was Station 51, not 50.

Joe M.

Neil McKie wrote:
  
  
  http://www.policeinterceptor.com/sounds/sta050.wav

  Turn on your speakers ...

  Neil McKie

  
  




 
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RE: [Repeater-Builder] Slightly OT - Remember the TV Series 'Emergency'?

[Kevin King]

here it is with the claxon

Kevin King SCSA BSCIS
ARS KC6OVD
GMRS KAG0378
EIEIO 2722
Acworth Georgia


-Original Message-
From: Repeater-Builder@yahoogroups.com
[mailto:[EMAIL PROTECTED] Behalf Of Neil McKie
Sent: Monday, August 08, 2005 2:16 PM
Subject: [Repeater-Builder] Slightly OT - Remember the TV Series
'Emergency'?



  http://www.policeinterceptor.com/sounds/sta050.wav

  Turn on your speakers ...

  Neil McKie





 
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1claxon1.mp3
Description: audio/mp3

RE: [Repeater-Builder] Air Variable Capacitors for DB4060

[Kevin King]

Look for the RCA carphone low band tube mobile. it has a couple in it. Or
look for some other tube mobile pa.

Kevin King SCSA BSCIS
ARS KC6OVD
GMRS KAG0378
EIEIO 2722
Acworth Georgia


-


The caps are Johanson 5602 (www.johansonmfg.com) 1 - 30 pf air variables.  I
requested a quote from Arizona Components Company and one other place, but
expect the get the 'we don't sell in small quantity' response.  Google
hasn't been much help either.



-- de WM4B
Mike
Kathleen, GA






 
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RE: [Repeater-Builder] Repeater Grounding

[Tony lelieveld]

Glenn,

I went to the below mentioned link and it comes back with page not found.
If I delete the last part referring to the file name, I get into tscm.com
but there is no reference to the grounding article.  Is there perhaps
anything missing?

Tnx

Tony VE3DWI 


> Down load a copy of MIL-HDBK-419 "Grounding, Bonding, and Shielding for
> Electronic Equipments and Facilities" 
,
> this is the military handbook on grounding. It is large and in two volumes
> about 812 pages. One is theory, the other is practice. Covers grounding
for
> safety, lightning, nuclear blast and most everything else. A very good
read
> and eye opener.
>
> 73
> Glenn
> WB4UIV






 
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Re: [Repeater-Builder] Slightly OT - Remember the TV Series 'Emergency'?

[Chuck Kelsey]

It's still yesterday in our area. These tones are 
in use daily to dispatch fire and rescue.
 
Chuck
WB2EDV
 
 
 

  - Original Message - 
  From: 
  Mark A. Holman 
  To: Repeater-Builder@yahoogroups.com 
  
  Sent: Monday, August 08, 2005 9:29 
  PM
  Subject: Re: [Repeater-Builder] Slightly 
  OT - Remember the TV Series 'Emergency'?
  I can still recall the tones like it was yesterday !  COOL 
  ! 8-) mch wrote: 
  It was Station 51, not 50.

Joe M.

Neil McKie wrote:
  
  http://www.policeinterceptor.com/sounds/sta050.wav

  Turn on your speakers ...

  Neil McKie





 
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Re: [Repeater-Builder] Slightly OT - Remember the TV Series 'Emergency'?

[Rick & Charlotte]

WOW that bring back mem's of the good ol days .. loved that show 

to bad I have not been able to catch it in reruns :( .. 

would love the whole sound track if I remember right there was a lot 
of 'sound' before the voice came out .. 

Rick

On 8 Aug 2005 at 21:52, Chuck Kelsey wrote:

> It's still yesterday in our area. These tones are in use daily to
> dispatch fire and rescue.
> 
> Chuck
> WB2EDV
> 
> 
> 
>   - Original Message - 
>   From: Mark A. Holman 
>   To: Repeater-Builder@yahoogroups.com 
>   Sent: Monday, August 08, 2005 9:29 PM
>   Subject: Re: [Repeater-Builder] Slightly OT - Remember the TV Series
>   'Emergency'?
> 
> 
>   I can still recall the tones like it was yesterday !  COOL ! 8-) 
> 
>   mch wrote: 
> It was Station 51, not 50.
> 
> Joe M.
> 
> Neil McKie wrote:
> http://www.policeinterceptor.com/sounds/sta050.wav
> 
>   Turn on your speakers ...
> 
>   Neil McKie
> 
> 
> 
> 
> 
> 
> Yahoo! Groups Links
> 
> 
> 
> 
> 
> 
> 
> 
> 
> 
> 
> 
> 
> 
> 
> 
> --
> 
>   YAHOO! GROUPS LINKS 
> 
> a..  Visit your group "Repeater-Builder" on the web.
> 
> b..  To unsubscribe from this group, send an email to:
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> 
> --
> 
> 
> 




Rick Szajkowski VA3 RZS
Charlotte Darby VA3 CMR
Node Owners of IRLP Node 2120
147.300 + VA3 OME
224.420 -  VA3 OME
Part of The Omeme Amateur Radio Club
Peterborough Ont. Canada





 
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Re: [Repeater-Builder] Repeater Grounding

[Eric Lemmon]

Tony,

You can download both volumes at this URL:



73, Eric Lemmon WB6FLY

Tony lelieveld wrote:

> Glenn,
>
> I went to the below mentioned link and it comes back with page not found.
> If I delete the last part referring to the file name, I get into tscm.com
> but there is no reference to the grounding article.  Is there perhaps
> anything missing?
>
> Tnx
>
> Tony VE3DWI
>
> > Down load a copy of MIL-HDBK-419 "Grounding, Bonding, and Shielding for
> > Electronic Equipments and Facilities" 
> ,
> > this is the military handbook on grounding. It is large and in two volumes
> > about 812 pages. One is theory, the other is practice. Covers grounding
> for
> > safety, lightning, nuclear blast and most everything else. A very good
> read
> > and eye opener.
> >
> > 73
> > Glenn
> > WB4UIV
>
>
> Yahoo! Groups Links
>
>
>
>
> Yahoo! Groups Links
>
>
>
>






 
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Re: [Repeater-Builder] Slightly OT - Remember the TV Series 'Emergency'?

[Ronny Julian]

Engine 51 Rescue 51 This is Rampart

Timeout 13:21.  KMG365



Mark A. Holman wrote:

> I can still recall the tones like it was yesterday !  COOL ! 8-)
>
> mch wrote:
>
>>It was Station 51, not 50.
>>
>>Joe M.
>>
>>Neil McKie wrote:
>>  
>>
>>>  http://www.policeinterceptor.com/sounds/sta050.wav
>>>
>>>  Turn on your speakers ...
>>>
>>>  Neil McKie
>>>
>>>
>>
>>
>>
>>
>>
>> 
>>Yahoo! Groups Links
>>
>>
>>
>> 
>>
>>
>>
>>
>>  
>>
>
>
>
>
>
>
>
> 
> YAHOO! GROUPS LINKS
>
> *  Visit your group "Repeater-Builder
>   " on the web.
>
> *  To unsubscribe from this group, send an email to:
>[EMAIL PROTECTED]
>   
>
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>   Service .
>
>
> 
>




 
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Re: [Repeater-Builder] Air Variable Capacitors for DB4060

[albemarle7]

For the capacitors..try Nebraska Sales. They advertise in QST.
Gary  K2UQ
 













  




  
  
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Re: [Repeater-Builder] Repeater Grounding

[John Place]

Try this for info also:  http://www.polyphaser.com/ppc_ptd_home.aspx


Glenn Little WB4UIV wrote:

>Down load a copy of MIL-HDBK-419 "Grounding, Bonding, and Shielding for 
>Electronic Equipments and Facilities"  , 
>this is the military handbook on grounding. It is large and in two volumes 
>about 812 pages. One is theory, the other is practice. Covers grounding for 
>safety, lightning, nuclear blast and most everything else. A very good read 
>and eye opener.
>
>73
>Glenn
>WB4UIV
>
>
>
>You should see a solution to all types of grounding issues here. At 11:23 
>PM 08/01/05, you wrote:
>  
>
>>Hello to the list and here is my question. The repeater site I am
>>working at has little dirt and lots of rock. I have to use a jackhammer
>>for the fence post holes, I can't hardly wait - ha ha. What are your
>>thoughts? What have you done, if faced with the same problem. If
>>this topic has been beat like a dead horse, let me know and I will go
>>dig thru the archives. Thank you.
>>
>>Rod KC7VQR
>>
>>
>>
>>
>>
>>Yahoo! Groups Links
>>
>>
>>
>>
>>
>>
>
>
>
>
>
>
> 
>Yahoo! Groups Links
>
>
>
> 
>
>
>
>
>
>  
>


-- 
No virus found in this outgoing message.
Checked by AVG Anti-Virus.
Version: 7.0.338 / Virus Database: 267.10.1/64 - Release Date: 8/4/2005





 
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RE: [Repeater-Builder] Repeater Grounding

[Glenn Little WB4UIV]

Here is a good link. That one did work just before I sent the link. Here is 
a link that is working:


73
Glenn
WB4UIV


At 09:51 PM 08/08/05, you wrote:
>Glenn,
>
>I went to the below mentioned link and it comes back with page not found.
>If I delete the last part referring to the file name, I get into tscm.com
>but there is no reference to the grounding article.  Is there perhaps
>anything missing?
>
>Tnx
>
>Tony VE3DWI
>
>
> > Down load a copy of MIL-HDBK-419 "Grounding, Bonding, and Shielding for
> > Electronic Equipments and Facilities" 
>,
> > this is the military handbook on grounding. It is large and in two volumes
> > about 812 pages. One is theory, the other is practice. Covers grounding
>for
> > safety, lightning, nuclear blast and most everything else. A very good
>read
> > and eye opener.
> >
> > 73
> > Glenn
> > WB4UIV
>
>
>
>
>
>
>
>Yahoo! Groups Links
>
>
>
>
>
>
>
>
>
>
>
>Yahoo! Groups Links
>
>
>
>






 
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Re: [Repeater-Builder] Air Variable Capacitors for DB4060

[Burt Lang]

The Johanson 30 pf trimmer is very rare in surplus but the 10 pf 
trimmers are very common and cheap (as little as 50c-$1 each) in 
surplus. I have bought a few hundred over the years, mostly at 
fleamarkets. I have used 3 10pf trimmers in parallel to replace the 30 
pf trimmers in Sinclair cans.  Depending on the mounting arrangement 
that may also work with the DB cans.  Also the 10pf unit has a much 
higher Q than the 30pf trimmer and paralleling them MAY give a higher Q 
than the single 30pf unit.  From experience it is certainly no worse.

Richardson Electronics also sell Johanson but their minimum qty is 100 
pces.  Electrosonic in Toronto used to distribute them but no longer 
have the account.  The single unit price for the 5602 should be in the 
$15 range.

Don't be tempted to use trimmers that have a sliding or rotating 
connection to the rotor such as the Johnson air trimmers.  I tried that 
one time and the rf currant thru the joint caused noise and instability 
reflected back to the transmitter.  The Johanson trimmer uses a bellows 
connection from the moveable element to ground that is a solid but 
flexable connection.

Just some hints from years of modifying and making cans in my shop.

Burt  VE2BMQ

Mike Besemer (WM4B) wrote:
> Greetings all,
> 
> I need two air variable capacitors for our DB4060 cans.  I contacted the
> company who bought out DB Products and was informed that they don't sell
> parts... but if they did, the price would be $41 each for the caps!
> 
> The caps are Johanson 5602 (www.johansonmfg.com) 1 - 30 pf air variables.  I
> requested a quote from Arizona Components Company and one other place, but
> expect the get the 'we don't sell in small quantity' response.  Google
> hasn't been much help either. 
> 
> Does anybody have a couple of these in your pocket or know where I can get
> my hands on a couple of them.  What about ideas for suitable subs?  
> 
> -- de WM4B
> Mike
> Kathleen, GA
> 
> 
> 
> 
> 
> 
>  
> Yahoo! Groups Links
> 
> 
> 
>  
> 
> 
> 
> 




 
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