Re: [Repeater-Builder] Radio Shack 10% Off Coupon good to 12/23

2005-12-21 Thread vmckever
Are they still black and white Neil?  Just could not pass that up

Vincent N6OA
- Original Message - 
From: Neil McKie [EMAIL PROTECTED]
To: Repeater-Builder@yahoogroups.com
Sent: Sunday, December 18, 2005 11:23 PM
Subject: Re: [Repeater-Builder] Radio Shack 10% Off Coupon good to 12/23


 
  I used to have a RCA TV ... was a black and white ... got it back 
 in the late fifties.  
 
  Now I have a Sony, a Toshiba and a couple of others too. 
 
  Neil 
 
 
 Mark A. Holman wrote:
 
 Say I did see a AKAI TV set there seems like they are venturing 
 the consumer mkt. also Sams Club carries AKAI also.
 
 I already have a RCA TV
 
 Neil McKie wrote:
 
May work ok ... if you bother going to radio shaft at all ...
 
Neil - WA6KLA
 
  Mike Morris wrote:
 
 
   Date: Fri, 16 Dec 2005 22:21:38 -
   Subject: Radio Shack 10% Off Coupon
  
   http://www.radioshack.com/graphics/email/RSK_12_16_05_1.html
  
   Expires 23 December
  
  
 
 
 
 
 
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Re: [Repeater-Builder] hdtv radio shack ant ????

2005-12-21 Thread FHS
The Channel 2 Color Ant is for all of 6 Meter.
The BW is for the FM portion only.

Merry Christmas To All!

Fred   W5VAY

- Original Message - 
From: Daron J. Wilson [EMAIL PROTECTED]
To: Repeater-Builder@yahoogroups.com
Sent: Tuesday, December 20, 2005 7:57 PM
Subject: RE: [Repeater-Builder] hdtv radio shack ant 


 More importantly to this group, how do I interface it to my repeater ??
 
 
 
 -Original Message-
 From: Repeater-Builder@yahoogroups.com [mailto:Repeater-
 [EMAIL PROTECTED] On Behalf Of mch
 Sent: Tuesday, December 20, 2005 4:48 PM
 To: Repeater-Builder@yahoogroups.com
 Subject: Re: [Repeater-Builder] hdtv radio shack ant 
 
 You know, this subject (mail subject line) reminds me of the stories I
 was told about them coming out with antennas for *COLOR* TV that were
 interpreted to be different from BW TV antennas. Supposedly, for color
 TV you needed a Color TV antenna.
 
 BW TV, Color TV, HDTV... they ALL use the same frequencies and the same
 antennas would work equally well.
 
 Joe M.
 
 
 
 
 
 
 
 
 Yahoo! Groups Links
 
 
 
 
 
 






 
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[Repeater-Builder] OT best repeaters along I 75 to FL

2005-12-21 Thread Rick Charlotte
We are going to take a trip south the FL along I75 

what are the best repeaters to use 144/222/440 ?  

with or with out IRLP links


Sorry for the off topic but I would like to have them ready to program 
into the radio before we leave !

Thank .. and sorry of the OT post 

Rick




Rick,Charlote  Kids
Daisy , Sir Red-A-Lot

Our Border Collie Message Group
[EMAIL PROTECTED]

Website 
www.karolinabc.ca






 
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Re: [Repeater-Builder] Duplexer tuning with Return Loss Bridge

2005-12-21 Thread Eric Lemmon
Gary,

A return loss bridge (RLB) is an extremely useful tool for tuning the 
pass function of a BpBr duplexer.  That's because the bandpass response 
of each cavity in a BpBr duplexer is very subtle- nothing like the peak 
you will see in a bandpass-only cavity.  Even when three BpBr cavities 
are in series, the bandpass response is rather wide.

An RLB allows any good spectrum analyzer to emulate the reflection 
capability of a vector network analyzer to a sufficient degree that 
bandpass tuning can be much more precise.  Instead of viewing the 
transmission bump, you can view the reflection notch- which is very 
sharp.  With such a clear indication of the bandpass tuning, the cavity 
can be tuned within a few kHz of the exact pass frequency.

It is essential that all interconnecting cables and connector cables be 
of very high quality, and the spectrum analyzer's reference oscillator 
be on frequency.  It takes some practice to use an RLB correctly, but 
it can allow you to tune a duplexer with remarkable precision.

73, Eric Lemmon WB6FLY


Quoting [EMAIL PROTECTED]:


 Gentlemen,
Will be starting a new science project setting up  Wacom 641 on 2 meters.
 Have a Rohde  Schwarz monitor receiver with S  meter, DB pads, dummy loads
 etc. Plus an IFR 1500. But I see comments on a unit  called a 'return loss
 bridge' for the IFR. How important is this return loss  bridge and 
 what is it's
 claim to fame? Do I really need one? Also have an old HP  8554B Spectrum
 Analyzer.
 Thanks,
 Gary  K2UQ










 
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Re: [Repeater-Builder] hdtv radio shack ant ????

2005-12-21 Thread Neil McKie

  Was that on a GE TV? 

  Thanks Fred, 

  Merry Christmas to all / Happy New Year too.

  Neil - WA6KLA 

FHS wrote:
 
 The Channel 2 Color Ant is for all of 6 Meter.
 The BW is for the FM portion only.
 
 Merry Christmas To All!
 
 Fred   W5VAY
 
 - Original Message -
 From: Daron J. Wilson [EMAIL PROTECTED]
 To: Repeater-Builder@yahoogroups.com
 Sent: Tuesday, December 20, 2005 7:57 PM
 Subject: RE: [Repeater-Builder] hdtv radio shack ant 
 
  More importantly to this group, how do I interface it to my repeater ??
 
 
 
  -Original Message-
  From: Repeater-Builder@yahoogroups.com [mailto:Repeater-
  [EMAIL PROTECTED] On Behalf Of mch
  Sent: Tuesday, December 20, 2005 4:48 PM
  To: Repeater-Builder@yahoogroups.com
  Subject: Re: [Repeater-Builder] hdtv radio shack ant 
 
  You know, this subject (mail subject line) reminds me of the stories I
  was told about them coming out with antennas for *COLOR* TV that were
  interpreted to be different from BW TV antennas. Supposedly, for color
  TV you needed a Color TV antenna.
 
  BW TV, Color TV, HDTV... they ALL use the same frequencies and the same
  antennas would work equally well.
 
  Joe M.
 
 
 
 
 
 
 
 
  Yahoo! Groups Links
 
 
 
 
 
 
 
 
 
 Yahoo! Groups Links
 
 
 






 
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Re: [Repeater-Builder] Duplexer tuning with Return Loss Bridge

2005-12-21 Thread Doug Zastrow





Eric  the Group...

From discussion of vector network analyzers / return loss 
bridges on the listit certainly appears that this is the gold-standard for 
duplexer alignment. Can anyone provide link(s) to a comprehensive tutorial 
on the subject?

Sometimes old dogs like me have to work a bit to learn new 
tricks but that doesn't stop me from trying!

While I have everyone... I'd like to thank all of the 
list contributors who share their knowledge for the good of everyone. It 
is truly appreciated.

A Joyous Holiday Season to all!


Doug

  - Original Message - 
  From: 
  Eric Lemmon 
  To: Repeater-Builder@yahoogroups.com 
  
  Sent: Wednesday, December 21, 2005 9:42 
  AM
  Subject: Re: [Repeater-Builder] Duplexer 
  tuning with Return Loss Bridge
  Gary,A return loss bridge (RLB) is an extremely useful 
  tool for tuning the pass function of a BpBr duplexer. That's because 
  the bandpass response of each cavity in a BpBr duplexer is very subtle- 
  nothing like the peak you will see in a bandpass-only cavity. Even 
  when three BpBr cavities are in series, the bandpass response is rather 
  wide.An RLB allows any good spectrum analyzer to emulate the 
  reflection capability of a vector network analyzer to a sufficient degree 
  that bandpass tuning can be much more precise. Instead of viewing 
  the transmission bump, you can view the reflection notch- which is very 
  sharp. With such a clear indication of the bandpass tuning, the 
  cavity can be tuned within a few kHz of the exact pass 
  frequency.It is essential that all interconnecting cables and 
  connector cables be of very high quality, and the spectrum analyzer's 
  reference oscillator be on frequency. It takes some practice to use 
  an RLB correctly, but it can allow you to tune a duplexer with remarkable 
  precision.73, Eric Lemmon WB6FLY













  




  
  
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Re: [Repeater-Builder] Duplexer tuning with Return Loss Bridge

2005-12-21 Thread [EMAIL PROTECTED]
Who makes a Return Loss Bridge? Any idea of the approximate cost?
LJ


-Original Message-
From: Eric Lemmon [EMAIL PROTECTED]
Sent: Dec 21, 2005 7:42 AM
To: Repeater-Builder@yahoogroups.com
Subject: Re: [Repeater-Builder] Duplexer tuning with Return Loss Bridge

Gary,

A return loss bridge (RLB) is an extremely useful tool for tuning the 
pass function of a BpBr duplexer.  That's because the bandpass response 
of each cavity in a BpBr duplexer is very subtle- nothing like the peak 
you will see in a bandpass-only cavity.  Even when three BpBr cavities 
are in series, the bandpass response is rather wide.

An RLB allows any good spectrum analyzer to emulate the reflection 
capability of a vector network analyzer to a sufficient degree that 
bandpass tuning can be much more precise.  Instead of viewing the 
transmission bump, you can view the reflection notch- which is very 
sharp.  With such a clear indication of the bandpass tuning, the cavity 
can be tuned within a few kHz of the exact pass frequency.

It is essential that all interconnecting cables and connector cables be 
of very high quality, and the spectrum analyzer's reference oscillator 
be on frequency.  It takes some practice to use an RLB correctly, but 
it can allow you to tune a duplexer with remarkable precision.

73, Eric Lemmon WB6FLY


Quoting [EMAIL PROTECTED]:


 Gentlemen,
Will be starting a new science project setting up  Wacom 641 on 2 meters.
 Have a Rohde  Schwarz monitor receiver with S  meter, DB pads, dummy loads
 etc. Plus an IFR 1500. But I see comments on a unit  called a 'return loss
 bridge' for the IFR. How important is this return loss  bridge and 
 what is it's
 claim to fame? Do I really need one? Also have an old HP  8554B Spectrum
 Analyzer.
 Thanks,
 Gary  K2UQ










 
Yahoo! Groups Links



 







 
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Re: [Repeater-Builder] Duplexer tuning with Return Loss Bridge

2005-12-21 Thread Dick
The Bird Model 43 is a typical RLB.  You can also use a network analyzer.

Dick

- Original Message - 
From: [EMAIL PROTECTED] [EMAIL PROTECTED]
To: Repeater-Builder@yahoogroups.com
Sent: 21 December, 2005 08:20
Subject: Re: [Repeater-Builder] Duplexer tuning with Return Loss Bridge


Who makes a Return Loss Bridge? Any idea of the approximate cost?
LJ


-Original Message-
From: Eric Lemmon [EMAIL PROTECTED]
Sent: Dec 21, 2005 7:42 AM
To: Repeater-Builder@yahoogroups.com
Subject: Re: [Repeater-Builder] Duplexer tuning with Return Loss Bridge

Gary,

A return loss bridge (RLB) is an extremely useful tool for tuning the
pass function of a BpBr duplexer.  That's because the bandpass response
of each cavity in a BpBr duplexer is very subtle- nothing like the peak
you will see in a bandpass-only cavity.  Even when three BpBr cavities
are in series, the bandpass response is rather wide.

An RLB allows any good spectrum analyzer to emulate the reflection
capability of a vector network analyzer to a sufficient degree that
bandpass tuning can be much more precise.  Instead of viewing the
transmission bump, you can view the reflection notch- which is very
sharp.  With such a clear indication of the bandpass tuning, the cavity
can be tuned within a few kHz of the exact pass frequency.

It is essential that all interconnecting cables and connector cables be
of very high quality, and the spectrum analyzer's reference oscillator
be on frequency.  It takes some practice to use an RLB correctly, but
it can allow you to tune a duplexer with remarkable precision.

73, Eric Lemmon WB6FLY


Quoting [EMAIL PROTECTED]:


 Gentlemen,
Will be starting a new science project setting up  Wacom 641 on 2 
 meters.
 Have a Rohde  Schwarz monitor receiver with S  meter, DB pads, dummy 
 loads
 etc. Plus an IFR 1500. But I see comments on a unit  called a 'return 
 loss
 bridge' for the IFR. How important is this return loss  bridge and
 what is it's
 claim to fame? Do I really need one? Also have an old HP  8554B Spectrum
 Analyzer.
 Thanks,
 Gary  K2UQ











Yahoo! Groups Links












Yahoo! Groups Links












 
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Re: [Repeater-Builder] Duplexer tuning with Return Loss Bridge

2005-12-21 Thread Dick
Yes, really.  You measure the forward power, then turn the element around 
and measure the
reflected power.  Then use 10 log (FP/RP) and you have the return loss in 
dB.

Dick

- Original Message - 
From: Jeff DePolo WN3A [EMAIL PROTECTED]
To: Repeater-Builder@yahoogroups.com
Sent: 21 December, 2005 08:46
Subject: RE: [Repeater-Builder] Duplexer tuning with Return Loss Bridge


 The Bird Model 43 is a typical RLB.

Oh really???!??!?

The Eagle return loss bridges are a good value for the buck.
www.eagle-1st.com.  They have a whitepaper on tuning duplexers too.
http://www.eagle-1st.com/notes/duplex/body.htm

I believe IFR (now Aeroflex) sells (or at least sold) the Eagle RLB's.

--- Jeff






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Re: [Repeater-Builder] Duplexer tuning with Return Loss Bridge

2005-12-21 Thread Bob Dengler
At 12/21/2005 01:28 AM, you wrote:
I just tuned a set of 641's with my IFR1500, a couple of 3dB pads, and a 
dummy load for the unused port while tuning it up.  That's all you should 
need to get them tuned.  You can also use the RL bridge to optimize the 50 
ohm match.  See this article:
http://www.eagle-1st.com/notes/duplex/body.htm

Couldn't one use a directional coupler instead of a RL bridge?  The 
directivity probably wouldn't be quite as good, but a surplus coupler would 
be a lot cheaper.

Bob NO6B






 
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[Repeater-Builder] Re: Duplexer tuning with Return Loss Bridge

2005-12-21 Thread Roger White
A good discussion on testing using a return loss bridge should be 
found wherever the old Hewlett Packard App. Notes are on the web. 

A return loss bridge in its simplest application is a dual 
directional coupler with detectors (or power meters) on the coupled 
ports. The forward port samples the forward power on the line and the 
reflected port the reflected power coming back from the load being 
looked at. If you have power meters on both ports, the difference in 
these power levels is the return loss of the device under test. You 
can relate return loss to VSWR, of course. If detectors are on the 
ports, the detector on the reflected port will have almost equal 
voltage as the forward detector (for a terrible VSWR) and 
progressively less voltage as the load VSWR gets better (toward 50 
ohms).

Roger
W5RD  

 
 Couldn't one use a directional coupler instead of a RL bridge?  The 
 directivity probably wouldn't be quite as good, but a surplus 
coupler would 
 be a lot cheaper.
 
 Bob NO6B









 
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RE: [Repeater-Builder] Duplexer tuning with Return Loss Bridge

2005-12-21 Thread Jeff DePolo WN3A

The Bird is a directional wattmeter.  It's not a return loss bridge (it's
not a bridge at all).  Yes, you can compute a spot-frequency measurement of
return loss that way, that doesn't help you with swept-frequency analysis
using a spectrum analyzer and tracking generator.


 -Original Message-
 From: Repeater-Builder@yahoogroups.com 
 [mailto:[EMAIL PROTECTED] On Behalf Of Dick
 Sent: Wednesday, December 21, 2005 12:01 PM
 To: Repeater-Builder@yahoogroups.com
 Subject: Re: [Repeater-Builder] Duplexer tuning with Return 
 Loss Bridge
 
 
 Yes, really.  You measure the forward power, then turn the 
 element around 
 and measure the
 reflected power.  Then use 10 log (FP/RP) and you have the 
 return loss in 
 dB.
 
 Dick
 
 - Original Message - 
 From: Jeff DePolo WN3A [EMAIL PROTECTED]
 To: Repeater-Builder@yahoogroups.com
 Sent: 21 December, 2005 08:46
 Subject: RE: [Repeater-Builder] Duplexer tuning with Return 
 Loss Bridge
 
 
  The Bird Model 43 is a typical RLB.
 
 Oh really???!??!?
 
 The Eagle return loss bridges are a good value for the buck.
 www.eagle-1st.com.  They have a whitepaper on tuning duplexers too.
 http://www.eagle-1st.com/notes/duplex/body.htm
 
 I believe IFR (now Aeroflex) sells (or at least sold) the Eagle RLB's.
 
 --- Jeff
 
 
 
 
 
 
 Yahoo! Groups Links
 
 
 
 
 
 
 
 
 
 
 
  
 Yahoo! Groups Links
 
 
 
  
 
 





 
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Re: [Repeater-Builder] Duplexer tuning with Return Loss Bridge

2005-12-21 Thread Dick
Technically, yes, but any means of obtaining the return loss
gets you the info you need.

I use an old network analyzer that's one of the handiest
gadgets around.

Dick

- Original Message - 
From: Jeff DePolo WN3A [EMAIL PROTECTED]
To: Repeater-Builder@yahoogroups.com
Sent: 21 December, 2005 09:26
Subject: RE: [Repeater-Builder] Duplexer tuning with Return Loss Bridge



The Bird is a directional wattmeter.  It's not a return loss bridge (it's
not a bridge at all).  Yes, you can compute a spot-frequency measurement of
return loss that way, that doesn't help you with swept-frequency analysis
using a spectrum analyzer and tracking generator.


 -Original Message-
 From: Repeater-Builder@yahoogroups.com 
 [mailto:[EMAIL PROTECTED] On Behalf Of Dick
 Sent: Wednesday, December 21, 2005 12:01 PM
 To: Repeater-Builder@yahoogroups.com
 Subject: Re: [Repeater-Builder] Duplexer tuning with Return 
 Loss Bridge
 
 
 Yes, really.  You measure the forward power, then turn the 
 element around 
 and measure the
 reflected power.  Then use 10 log (FP/RP) and you have the 
 return loss in 
 dB.
 
 Dick
 
 - Original Message - 
 From: Jeff DePolo WN3A [EMAIL PROTECTED]
 To: Repeater-Builder@yahoogroups.com
 Sent: 21 December, 2005 08:46
 Subject: RE: [Repeater-Builder] Duplexer tuning with Return 
 Loss Bridge
 
 
  The Bird Model 43 is a typical RLB.
 
 Oh really???!??!?
 
 The Eagle return loss bridges are a good value for the buck.
 www.eagle-1st.com.  They have a whitepaper on tuning duplexers too.
 http://www.eagle-1st.com/notes/duplex/body.htm
 
 I believe IFR (now Aeroflex) sells (or at least sold) the Eagle RLB's.
 
 --- Jeff
 
 
 
 
 
 
 Yahoo! Groups Links
 
 
 
 
 
 
 
 
 
 
 
  
 Yahoo! Groups Links
 
 
 
  
 
 





 
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Re: [Repeater-Builder] Duplexer tuning with Return Loss Bridge

2005-12-21 Thread Robin Midgett
The two brands I'm familiar with are Mini Circuits  Eagle.
Ditto on usefulness...also good for tuning receiver front ends and PA 
outputs...powered off, of course.

At 10:20 AM 12/21/2005, you wrote:
Who makes a Return Loss Bridge? Any idea of the approximate cost?
LJ


-Original Message-
 From: Eric Lemmon [EMAIL PROTECTED]
 Sent: Dec 21, 2005 7:42 AM
 To: Repeater-Builder@yahoogroups.com
 Subject: Re: [Repeater-Builder] Duplexer tuning with Return Loss Bridge
 
 Gary,
 
 A return loss bridge (RLB) is an extremely useful tool for tuning the
 pass function of a BpBr duplexer.  That's because the bandpass response
 of each cavity in a BpBr duplexer is very subtle- nothing like the peak
 you will see in a bandpass-only cavity.  Even when three BpBr cavities
 are in series, the bandpass response is rather wide.
 
 An RLB allows any good spectrum analyzer to emulate the reflection
 capability of a vector network analyzer to a sufficient degree that
 bandpass tuning can be much more precise.  Instead of viewing the
 transmission bump, you can view the reflection notch- which is very
 sharp.  With such a clear indication of the bandpass tuning, the cavity
 can be tuned within a few kHz of the exact pass frequency.
 
 It is essential that all interconnecting cables and connector cables be
 of very high quality, and the spectrum analyzer's reference oscillator
 be on frequency.  It takes some practice to use an RLB correctly, but
 it can allow you to tune a duplexer with remarkable precision.
 
 73, Eric Lemmon WB6FLY
 
 
 Quoting [EMAIL PROTECTED]:
 
 
  Gentlemen,
 Will be starting a new science project setting up  Wacom 641 
 on 2 meters.
  Have a Rohde  Schwarz monitor receiver with S  meter, DB pads, 
 dummy loads
  etc. Plus an IFR 1500. But I see comments on a unit  called a 'return loss
  bridge' for the IFR. How important is this return loss  bridge and
  what is it's
  claim to fame? Do I really need one? Also have an old HP  8554B Spectrum
  Analyzer.
  Thanks,
  Gary  K2UQ
 
 
 
 
 
 
 
 
 
 
 
 Yahoo! Groups Links
 
 
 
 
 
 






Yahoo! Groups Links





Thanks,
Robin Midgett K4IDC
615-322-5836 office - rolls to pager
615-835-7699 pager
615-301-1642 home
[EMAIL PROTECTED]
[EMAIL PROTECTED]
http://www.people.vanderbilt.edu/~robin.midgett/index.htm 





 
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Re: [Repeater-Builder] hdtv radio shack ant ????

2005-12-21 Thread Jim B.
mch wrote:

 You know, this subject (mail subject line) reminds me of the stories I
 was told about them coming out with antennas for *COLOR* TV that were
 interpreted to be different from BW TV antennas. Supposedly, for color
 TV you needed a Color TV antenna.
 
 BW TV, Color TV, HDTV... they ALL use the same frequencies and the same
 antennas would work equally well.
 
 Joe M.

The only difference is that color requires more signal then bw, and 
digital requires more signal then color. (Just like stereo FM requires 
more signal then mono.) Hence the fact, if one looked, that color 
antennas were just higher gain, and digital antennas are more gain yet.

-- 
Jim Barbour
WD8CHL





 
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Re: [Repeater-Builder] Re: hdtv radio shack ant ????

2005-12-21 Thread mch
BTW, any stations running both analog and digital under one callsign
will be licensed for the digital as (call)-DT.

Joe M.

Bil Munsil wrote:
 
 Here is a list of all the TV stations in Indiana.
 Maybe some of them are running HDTV.
 Maybe some are in your viewing area.
 
 KERO-TV
 KTVN
 KWHB
 KWHD
 KWHE
 KWHH
 KWHM
 WAZE-TV
 WCLJ-TV
 WFWA
 WFYI
 WHMB-TV
 WHME-TV
 WHNO
 WINM
 WIPB
 WKOI-TV
 WNDU-TV
 WNIN
 WNIT
 WRCB-TV
 WRTV
 WSBT-TV
 WSJV
 WTHR
 WTIU
 WTTK
 WTTV
 WVUT
 WXIN
 WYIN
 
 Bil
 
 --- In Repeater-Builder@yahoogroups.com, Toby [EMAIL PROTECTED] wrote:
 
  hi just got me a hdtv at mal mart with hdtv tuner build inside.
   i get the best tv picture  i every had. here  ..
   at what freqency in the uhf band is the hdtv send on...
   cant seem to find it anywhere  on the internet...???
 
  i useing  a homebuild uhf ant with a pre amp..
would like to build the ant for for the hdtv frequency..?
toby...n9fdf
 
 
 Yahoo! Groups Links
 
 
 






 
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[Repeater-Builder] color tv antennas

2005-12-21 Thread skipp025
Not so fast...  you might consider researching the 
name Swan (not related to the radio company) and 
the log cell yagi antenna.  Mr Swan pretty much invented 
the early Color TV Antenna Technology you now see used. 
Much of his research and design was directly related to 
Color TV Antennas. 

Mr Swan was a very big VHF weak signal fan... his designs 
and patents were used by KLM for their early antennas. 

I had a nice chat with Mike of M2 Antennas (was the M 
of KLM) about Mr. Swan and his information is valid 
regarding the wider bandwidth and performance of his 
Color TV Antennas.  They are just a better antenna... 

cheers,
skipp 

  Jim B. [EMAIL PROTECTED] wrote: mch wrote:
  You know, this subject (mail subject line) reminds 
  me of the stories I was told about them coming out 
  with antennas for *COLOR* TV that were interpreted 
  to be different from BW TV antennas. Supposedly, 
  for color TV you needed a Color TV antenna.
  
  BW TV, Color TV, HDTV... they ALL use the same 
  frequencies and the same antennas would work equally 
  well.
  Joe M.
 







 
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Re: [Repeater-Builder] hdtv radio shack ant ????

2005-12-21 Thread mch
How do you interface an antenna to your repeater? There should be an
antenna port on your repeater or duplexer t which you connect the
antenna.

The same issues relate to repeaters, BTW - there are no antennas for FM
vs AM vs SSB vs APRS vs packet vs Etc., Etc. Etc. They are all the SAME
and only vary in the fact that they are usually a more narrow bandwidth,
but that's a function of frequency coverage, not mode used.

Joe M.

Daron J. Wilson wrote:
 
 More importantly to this group, how do I interface it to my repeater ??
 
  -Original Message-
  From: Repeater-Builder@yahoogroups.com [mailto:Repeater-
  [EMAIL PROTECTED] On Behalf Of mch
  Sent: Tuesday, December 20, 2005 4:48 PM
  To: Repeater-Builder@yahoogroups.com
  Subject: Re: [Repeater-Builder] hdtv radio shack ant 
 
  You know, this subject (mail subject line) reminds me of the stories I
  was told about them coming out with antennas for *COLOR* TV that were
  interpreted to be different from BW TV antennas. Supposedly, for color
  TV you needed a Color TV antenna.
 
  BW TV, Color TV, HDTV... they ALL use the same frequencies and the same
  antennas would work equally well.
 
  Joe M.
 
 
 Yahoo! Groups Links
 
 
 






 
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Re: [Repeater-Builder] hdtv radio shack ant ????

2005-12-21 Thread mch
Wouldn't that be equivallent to 'ghosting' on analog TV?

Wouldn't directional antennas be better for that reason?

Joe M.

Hap Griffin wrote:
 
 - Original Message -
 From: mch [EMAIL PROTECTED]
 To: Repeater-Builder@yahoogroups.com
 Sent: Tuesday, December 20, 2005 7:48 PM
 Subject: Re: [Repeater-Builder] hdtv radio shack ant 
 
  You know, this subject (mail subject line) reminds me of the stories I
  was told about them coming out with antennas for *COLOR* TV that were
  interpreted to be different from BW TV antennas. Supposedly, for color
  TV you needed a Color TV antenna.
 
  BW TV, Color TV, HDTV... they ALL use the same frequencies and the same
  antennas would work equally well.
 
  Joe M.
 
 
 Yes, that is true, to a point.  The 8VSB modulation used by DTV is prone to
 multipath interference.  This is easily seen with a spectrum analyzer when
 turning an antenna...multipath will show up as a notch (or multiple notches)
 in what is supposed to be a flat noise-like energy spectrum form the DTV
 transmitter.  Depending on where the notch is in the spectrum and its depth,
 the digital decoder and loose lock on the signal with the result being the
 dreaded blue TV screen.  Thus, the best DTV performance is from antennas
 that are more directional which reject any off-axis multipath signals
 better.  Multipath is why indoor antenna reception of DTV is so touchy.
 However, the later generations of tuner chipsets are getting much better at
 multipath compensation.
 
 Hap Griffin
 VP-Engineering
 SCETV
 
 
 Yahoo! Groups Links
 
 
 






 
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Re: [Repeater-Builder] hdtv radio shack ant ????

2005-12-21 Thread mch
But isn't that relative to your distance (or path) from the station you
want to receive? The lower gain antennas would work just fine if the
signal is strong enough.

What you said is effectively (in FM terms): Simplex antennas need higher
gain to make up for the weaker signals over repeaters. So why aren't
there repeater antennas and simplex antennas? (aside from the quality
aspects)

Joe M.

Jim B. wrote:
 
 The only difference is that color requires more signal then bw, and
 digital requires more signal then color. (Just like stereo FM requires
 more signal then mono.) Hence the fact, if one looked, that color
 antennas were just higher gain, and digital antennas are more gain yet.
 
 --
 Jim Barbour
 WD8CHL





 
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Re: [Repeater-Builder] color tv antennas

2005-12-21 Thread mch
Skipp,

Usually I would not argue with you, but..

So your point is that the BW antennas only cover segments of each
channel while the color antennas cover the entire 6 MHz segment?

IOW, the BW are resonant every 6 MHz, but not continuous?

Or... (resonance plots in ASCII graphic form)

BW: 54 MHz '''\___/'''\___/'''\___/'\___/'''\___/''' 88 MHz

Color: 54 MHz _ 88 MHz

While that is technically possible, I find it very unlikely.

Joe M.

skipp025 wrote:
 
 I had a nice chat with Mike of M2 Antennas (was the M
 of KLM) about Mr. Swan and his information is valid
 regarding the wider bandwidth and performance of his
 Color TV Antennas.  They are just a better antenna...
 
 cheers,
 skipp





 
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[Repeater-Builder] color tv antennas

2005-12-21 Thread Chris Huber




Come on Guys!
I just want to know how to get HDTV on my repeater. :-)
Chris N6ICW

Message: 21 
 Date: Wed, 21 Dec 2005 18:54:28 -
 From: skipp025 [EMAIL PROTECTED]
Subject: color tv antennas
Not so fast... you might consider researching the 
name Swan (not related to the radio company) and 
the log cell yagi antenna. Mr Swan pretty much invented 
the early Color TV Antenna Technology you now see used. 
Much of his research and design was directly related to 
Color TV Antennas. 














  




  
  
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RE: [Repeater-Builder] color tv antennas

2005-12-21 Thread N9WYS
It depends on whether you have an HDTV-ready repeater…  If not, you’ll also
need to purchase an HDTV set-top box and interface that into the repeater.

Mark – N9WYS


From: Repeater-Builder@yahoogroups.com
[mailto:[EMAIL PROTECTED] On Behalf Of Chris Huber
Sent: Wednesday, December 21, 2005 2:48 PM
To: Repeater-Builder@yahoogroups.com
Subject: [Repeater-Builder] color tv antennas

Come on Guys!

I just want to know how to get HDTV on my repeater.  :-)

Chris N6ICW








 
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[Repeater-Builder] Re: Duplexer tuning with Return Loss Bridge

2005-12-21 Thread nj902
--- In Repeater-Builder@yahoogroups.com, Bob Dengler [EMAIL PROTECTED] wrote:
Couldn't one use a directional coupler instead of a RL bridge?  ...
_

Yes.  Directional couplers and return loss bridges are both classified 
as signal separation devices.  They differ in internal design, 
directivity, port match, insertion loss and so on but both perform the 
same function.







 
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Re: [Repeater-Builder] hdtv radio shack ant ????

2005-12-21 Thread Hap Griffin

- Original Message - 
From: Jim B. [EMAIL PROTECTED]
To: Repeater-Builder@yahoogroups.com
Sent: Wednesday, December 21, 2005 11:15 AM
Subject: Re: [Repeater-Builder] hdtv radio shack ant 


 mch wrote:

 You know, this subject (mail subject line) reminds me of the stories I
 was told about them coming out with antennas for *COLOR* TV that were
 interpreted to be different from BW TV antennas. Supposedly, for color
 TV you needed a Color TV antenna.

 BW TV, Color TV, HDTV... they ALL use the same frequencies and the same
 antennas would work equally well.

 Joe M.

 The only difference is that color requires more signal then bw, and
 digital requires more signal then color. (Just like stereo FM requires
 more signal then mono.) Hence the fact, if one looked, that color
 antennas were just higher gain, and digital antennas are more gain yet.

 -- 
 Jim Barbour
 WD8CHL

Actually, it requires considerably less signal than analog TV (color or 
BW).  The coding gains of digital allow it to operate much closer to the 
noise floor than analog.  If you look at the power assignments of television 
broadcast stations, the DTV power to replicate coverage is in nearly all 
cases much less, unless the analog station is on VHF and the paired DTV 
station is on UHF.  For instance, I am the CE for an eleven station 
network...most of our megewatt UHF analog stations are coverage matched very 
well by their 50 KW digital counterparts.  The rule of thumb is that average 
digital power is 12 dB less than peak analog power.

Hap Griffin
WZ4O 





 
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Re: [Repeater-Builder] hdtv radio shack ant ????

2005-12-21 Thread Hap Griffin
Yes...I believe that's what I said.  Directional is better for DTV.

Hap Griffin
WZ4O

- Original Message - 
From: mch [EMAIL PROTECTED]
To: Repeater-Builder@yahoogroups.com
Sent: Wednesday, December 21, 2005 1:24 PM
Subject: Re: [Repeater-Builder] hdtv radio shack ant 


 Wouldn't that be equivallent to 'ghosting' on analog TV?

 Wouldn't directional antennas be better for that reason?

 Joe M.

 Hap Griffin wrote:

 - Original Message -
 From: mch [EMAIL PROTECTED]
 To: Repeater-Builder@yahoogroups.com
 Sent: Tuesday, December 20, 2005 7:48 PM
 Subject: Re: [Repeater-Builder] hdtv radio shack ant 

  You know, this subject (mail subject line) reminds me of the stories I
  was told about them coming out with antennas for *COLOR* TV that were
  interpreted to be different from BW TV antennas. Supposedly, for color
  TV you needed a Color TV antenna.
 
  BW TV, Color TV, HDTV... they ALL use the same frequencies and the 
  same
  antennas would work equally well.
 
  Joe M.
 

 Yes, that is true, to a point.  The 8VSB modulation used by DTV is prone 
 to
 multipath interference.  This is easily seen with a spectrum analyzer 
 when
 turning an antenna...multipath will show up as a notch (or multiple 
 notches)
 in what is supposed to be a flat noise-like energy spectrum form the DTV
 transmitter.  Depending on where the notch is in the spectrum and its 
 depth,
 the digital decoder and loose lock on the signal with the result being 
 the
 dreaded blue TV screen.  Thus, the best DTV performance is from antennas
 that are more directional which reject any off-axis multipath signals
 better.  Multipath is why indoor antenna reception of DTV is so touchy.
 However, the later generations of tuner chipsets are getting much better 
 at
 multipath compensation.

 Hap Griffin
 VP-Engineering
 SCETV


 Yahoo! Groups Links










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Re: [Repeater-Builder] hdtv radio shack ant ????

2005-12-21 Thread Jim B.
Hap Griffin wrote:

 - Original Message - 
 From: Jim B. [EMAIL PROTECTED]
 To: Repeater-Builder@yahoogroups.com
 Sent: Wednesday, December 21, 2005 11:15 AM
 Subject: Re: [Repeater-Builder] hdtv radio shack ant 
 
 
 
mch wrote:


You know, this subject (mail subject line) reminds me of the stories I
was told about them coming out with antennas for *COLOR* TV that were
interpreted to be different from BW TV antennas. Supposedly, for color
TV you needed a Color TV antenna.

BW TV, Color TV, HDTV... they ALL use the same frequencies and the same
antennas would work equally well.

Joe M.

The only difference is that color requires more signal then bw, and
digital requires more signal then color. (Just like stereo FM requires
more signal then mono.) Hence the fact, if one looked, that color
antennas were just higher gain, and digital antennas are more gain yet.

-- 
Jim Barbour
WD8CHL
 
 
 Actually, it requires considerably less signal than analog TV (color or 
 BW).  The coding gains of digital allow it to operate much closer to the 
 noise floor than analog.  If you look at the power assignments of television 
 broadcast stations, the DTV power to replicate coverage is in nearly all 
 cases much less, unless the analog station is on VHF and the paired DTV 
 station is on UHF.  For instance, I am the CE for an eleven station 
 network...most of our megewatt UHF analog stations are coverage matched very 
 well by their 50 KW digital counterparts.  The rule of thumb is that average 
 digital power is 12 dB less than peak analog power.
 
 Hap Griffin
 WZ4O 

Not gonna argue-experience has shown the DTV's need a much better 
installation on the recieve end-across the board (VHF or UHF).
And not just directionality either.
-eos-
-- 
Jim Barbour
WD8CHL





 
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Re: [Repeater-Builder] hdtv radio shack ant ????

2005-12-21 Thread JOHN MACKEY
This makes sense.

I am the Chief Engineer of an FM station that recently converted to
IBOC (thus having BOTH analog  digital).  We use the SAME antenna for both
our analog  digital transmissions  notice that the coverage of analog
compared to digital is very similar.  In FM IBOC, the digital signal is 20 DB
below the analog (or 1% of the analog).

-- Original Message --
Received: Wed, 21 Dec 2005 03:41:09 PM CST
From: Hap Griffin [EMAIL PROTECTED]
 Actually, it requires considerably less signal than analog TV (color or 
 BW).  The coding gains of digital allow it to operate much closer to the 
 noise floor than analog.  If you look at the power assignments of television

 broadcast stations, the DTV power to replicate coverage is in nearly all 
 cases much less, unless the analog station is on VHF and the paired DTV 
 station is on UHF.  For instance, I am the CE for an eleven station 
 network...most of our megewatt UHF analog stations are coverage matched very

 well by their 50 KW digital counterparts.  The rule of thumb is that average

 digital power is 12 dB less than peak analog power.
 
 Hap Griffin
 WZ4O 






 
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[Repeater-Builder] Re: color tv antennas

2005-12-21 Thread skipp025
  mch [EMAIL PROTECTED] wrote:
 Skipp,
 Usually I would not argue with you, but..

 So your point is that the BW antennas only cover segments of each
 channel while the color antennas cover the entire 6 MHz segment?

Nope...  not what I posted... 

 IOW, the BW are resonant every 6 MHz, but not continuous?
 Or... (resonance plots in ASCII graphic form)
 BW: 54 MHz '''\___/'''\___/'''\___/'\___/'''\___/''' 88 MHz
 Color: 54 MHz _ 88 MHz
 While that is technically possible, I find it very unlikely.
 Joe M.

If you have real interest in the subject, try looking up 
the work on color tv antennas by Oliver Swan. He also had 
a reported number of patents on the color tv antenna designs.

cheers,
skipp 







 
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Re: [Repeater-Builder] hdtv radio shack ant ????

2005-12-21 Thread Hap Griffin

- Original Message - 
From: Jim B. [EMAIL PROTECTED]
To: Repeater-Builder@yahoogroups.com
Sent: Wednesday, December 21, 2005 4:51 PM
Subject: Re: [Repeater-Builder] hdtv radio shack ant 



 Actually, it requires considerably less signal than analog TV (color or
 BW).  The coding gains of digital allow it to operate much closer to the
 noise floor than analog.  If you look at the power assignments of 
 television
 broadcast stations, the DTV power to replicate coverage is in nearly all
 cases much less, unless the analog station is on VHF and the paired DTV
 station is on UHF.  For instance, I am the CE for an eleven station
 network...most of our megewatt UHF analog stations are coverage matched 
 very
 well by their 50 KW digital counterparts.  The rule of thumb is that 
 average
 digital power is 12 dB less than peak analog power.

 Hap Griffin
 WZ4O

 Not gonna argue-experience has shown the DTV's need a much better
 installation on the recieve end-across the board (VHF or UHF).
 And not just directionality either.
 -eos-
 -- 
 Jim Barbour
 WD8CHL


Agreed...a crappy installation with mis-terminations on the dividers, etc. 
providing echos within the distribution system can wreck DTV reception.  But 
in a proper installation, much less power is usually required.

I can't believe it's been now almost 5 years to the month since putting my 
network's first DTV station on the air (the first one in South Carolina and 
the first to be transcoded onto digital cable...also the first to beta test 
the TCI wideband slot antenna).  My eleventh and last goes on air in 
January.

Hap Griffin
WZ4O







 
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Re: [Repeater-Builder] hdtv radio shack ant ????

2005-12-21 Thread mch
And my reply was 'isn't directional better for ANYTHING?' (not just DTV)

Joe M.

Hap Griffin wrote:
 
 Yes...I believe that's what I said.  Directional is better for DTV.
 
 Hap Griffin
 WZ4O
 
 - Original Message -
 From: mch [EMAIL PROTECTED]
 To: Repeater-Builder@yahoogroups.com
 Sent: Wednesday, December 21, 2005 1:24 PM
 Subject: Re: [Repeater-Builder] hdtv radio shack ant 
 
  Wouldn't that be equivallent to 'ghosting' on analog TV?
 
  Wouldn't directional antennas be better for that reason?
 
  Joe M.
 
  Hap Griffin wrote:
 
  - Original Message -
  From: mch [EMAIL PROTECTED]
  To: Repeater-Builder@yahoogroups.com
  Sent: Tuesday, December 20, 2005 7:48 PM
  Subject: Re: [Repeater-Builder] hdtv radio shack ant 
 
   You know, this subject (mail subject line) reminds me of the stories I
   was told about them coming out with antennas for *COLOR* TV that were
   interpreted to be different from BW TV antennas. Supposedly, for color
   TV you needed a Color TV antenna.
  
   BW TV, Color TV, HDTV... they ALL use the same frequencies and the
   same
   antennas would work equally well.
  
   Joe M.
  
 
  Yes, that is true, to a point.  The 8VSB modulation used by DTV is prone
  to
  multipath interference.  This is easily seen with a spectrum analyzer
  when
  turning an antenna...multipath will show up as a notch (or multiple
  notches)
  in what is supposed to be a flat noise-like energy spectrum form the DTV
  transmitter.  Depending on where the notch is in the spectrum and its
  depth,
  the digital decoder and loose lock on the signal with the result being
  the
  dreaded blue TV screen.  Thus, the best DTV performance is from antennas
  that are more directional which reject any off-axis multipath signals
  better.  Multipath is why indoor antenna reception of DTV is so touchy.
  However, the later generations of tuner chipsets are getting much better
  at
  multipath compensation.
 
  Hap Griffin
  VP-Engineering
  SCETV
 
 
  Yahoo! Groups Links
 
 
 
 
 
 
 
 
 
 
  Yahoo! Groups Links
 
 
 
 
 
 
 
 
 Yahoo! Groups Links
 
 
 






 
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Re: [Repeater-Builder] Re: color tv antennas

2005-12-21 Thread mch
OK, then can you explain how 'color' antennas have more bandwidth?

Joe M.

skipp025 wrote:
 
   mch [EMAIL PROTECTED] wrote:
  Skipp,
  Usually I would not argue with you, but..
 
  So your point is that the BW antennas only cover segments of each
  channel while the color antennas cover the entire 6 MHz segment?
 
 Nope...  not what I posted...





 
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[Repeater-Builder] Re: color tv antennas

2005-12-21 Thread skipp025
 mch [EMAIL PROTECTED] wrote:
 OK, then can you explain how 'color' antennas have 
 more bandwidth?
 Joe M.

Nope... 

If your interest is peaked, try looking up Color TV 
Antenna work by Oliver Swan. 

s. 

[paste]
 So your point is that the BW antennas only cover 
 segments of each channel while the color antennas 
 cover the entire 6 MHz segment?
 Nope...  not what I posted...










 
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[Repeater-Builder] cadillac,mi tower space needed

2005-12-21 Thread w8qpo
hello group,
 i am looking for tower space around cadillac mi to put an ham 
repeater i am trying to link across mich and am having a hard time 
finding willing tower owners this area this is all nonprofit and out 
of our pockets i have the equipment just need space  for vhf / uhf any 
input is welcome  thanks brad   w8qpo  







 
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Re: [Repeater-Builder] hdtv radio shack ant ????

2005-12-21 Thread Hap Griffin

- Original Message - 
From: mch [EMAIL PROTECTED]
To: Repeater-Builder@yahoogroups.com
Sent: Wednesday, December 21, 2005 5:43 PM
Subject: Re: [Repeater-Builder] hdtv radio shack ant 


 And my reply was 'isn't directional better for ANYTHING?' (not just DTV)
 
 Joe M.
 

OK...I see what you meant now...yes, I agree.

Hap







 
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Re: [Repeater-Builder] Re: Vanity call resumes

2005-12-21 Thread Mark A. Holman






If anyone read the notice the owner of that web page is no longer
interested in running the web page so it may go out someday unless
someone bought it .

wn1b8 wrote:

  Go to www.vanityhq.com. All the info you need is there.

Scott Madison, WN1B


--- In Repeater-Builder@yahoogroups.com, "Maire-Radios" maire-
[EMAIL PROTECTED] wrote:
  
  
how do you get a vanity call sign?  could you please give me a 

  
  little info?
  
  
thanks


- Original Message - 
From: "N9WYS" [EMAIL PROTECTED]
To: Repeater-Builder@yahoogroups.com
Sent: Tuesday, December 20, 2005 7:17 PM
Subject: RE: [Repeater-Builder] Vanity call resumes




  They discontinued after the hurricane problems along the Gulf 
  

  
  coast - 
  
  

  mainly
because many hams in that area couldn't renew licenses and/or 
  

  
  apply for
  
  

  vanity call signs for a while.

Mark - N9WYS

-Original Message-
From: Repeater-Builder@yahoogroups.com
[mailto:Repeater-Builder@yahoogroups.com] On Behalf Of Jim B.
Sent: Tuesday, December 20, 2005 4:18 PM
To: Repeater-Builder@yahoogroups.com
Subject: Re: [Repeater-Builder] Vanity call resumes

Coy Hilton wrote:

  
  
FCC processing of Vanity Calls scheduled to resume January 4 

  

  
  2006.
  
  

  
73
AC0Y

  
  didn't know they stopped. can't imagine why they would either...
(not that it matters to me anyway)
-- 
Jim Barbour
WD8CHL






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[Repeater-Builder] WANTED

2005-12-21 Thread Captainlance





I am looking for several Motorola TLN8381 PL reeds, 
136.5 Hz. for a voter project... Please contact me if you have them to sell or 
trade.
Lance N2HBA
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Re: [Repeater-Builder] cadillac,mi tower space needed

2005-12-21 Thread Mark A. Holman
Brad;
  Are you in Cadillac, MI.  ?  there was a attempt to put a UHF 
Business courtsey system between Big Rapids, Grand Rapids, and Cadillac 
all I heard was the color of money mentioned check with W8HVG Abe in GR 
via. Independent Repeater Assn.  the Repeater Coordinators you may want 
to look the facts 1st.

Mark AB8RU
Allegan Co. MI.

w8qpo wrote:

hello group,
 i am looking for tower space around cadillac mi to put an ham 
repeater i am trying to link across mich and am having a hard time 
finding willing tower owners this area this is all nonprofit and out 
of our pockets i have the equipment just need space  for vhf / uhf any 
input is welcome  thanks brad   w8qpo  







 
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Re: [Repeater-Builder] Radio Shack 10% Off Coupon good to 12/23

2005-12-21 Thread Mark A. Holman






maybe from 1990 may beee

vmckever wrote:

  Are they still black and white Neil?  Just could not pass that up

Vincent N6OA
- Original Message - 
From: "Neil McKie" [EMAIL PROTECTED]
To: Repeater-Builder@yahoogroups.com
Sent: Sunday, December 18, 2005 11:23 PM
Subject: Re: [Repeater-Builder] Radio Shack 10% Off Coupon good to 12/23


  
  
 I used to have a RCA TV ... was a black and white ... got it back 
in the late fifties.  

 Now I have a Sony, a Toshiba and a couple of others too. 

 Neil 




  "Mark A. Holman" wrote:

Say I did see a AKAI TV set there seems like they are venturing 
the consumer mkt. also Sams Club carries AKAI also.

I already have a RCA TV

Neil McKie wrote:

  
  
  May work ok ... if you bother going to radio shaft at all ...

  Neil - WA6KLA

Mike Morris wrote:




  
Date: Fri, 16 Dec 2005 22:21:38 -
Subject: Radio Shack 10% Off Coupon

http://www.radioshack.com/graphics/email/RSK_12_16_05_1.html

Expires 23 December



  





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Re: [Repeater-Builder] hdtv radio shack ant ????

2005-12-21 Thread Mark A. Holman






just look at each TV Station Channel assignment I'll give the Grand
Rapids, MI approximates so bear with me,

WWMT Ch. 2 Digital, Ch. 3 Analog
WOOD  Ch 7 Digital, Ch. 8 Analog, CH. 41 Analog ( its call is WOTV,
and simulcasts )
this one is also simlucast LPTV analog and studio cotrols another LPTV
called Urban TV owned by LIN Television
WZZM TV 12 Digital, CH. 13 Analog
WXMI Ch. 17 Analog, and Ch. 19 Digital ( FOX network ) 

you may have to plug in Broadcasting try http://www.broadcast.net 

also Society of Broadcast Engineers http://www.sbe.org

that has lots of links and keep you surfin til the cows come home  :-) 

if You want into Broadcast Career lots of jobs and BTW Join SBE !

Merry Christmas


Toby wrote:

  
  
  
  hi just got me a hdtv at mal mart
with hdtv tuner build inside.
  i get the best tv picture i every
had. here ..
  at what freqency in the uhf band is
the hdtv send on...
  cant seem to find it anywhere on
the internet...???
  
  i useing a homebuild uhf ant with a
pre amp..
   would like to build the ant for
for the hdtv frequency..?
   toby...n9fdf
  
















  




  
  
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[Repeater-Builder] Icom 144, 220, 440 Band Units

2005-12-21 Thread Jerry
Title: Icom 144, 220, 440 Band Units








Pictures on Request Good condition. $225 each or all for $600


Jerry WB6NYS [EMAIL PROTECTED]
















  




  
  
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[Repeater-Builder] Repeaters, 220 440

2005-12-21 Thread Jerry
Title: Repeaters,  220  440








220 = Hamtronics TX/RX with Xtal Ovens, Rack Mount

$300


440 = GE master pro RX and Hamtronics RX, Rack Mount

$200


Have RC-96 Controller Loaded with everything also.


Jerry WB6NYS [EMAIL PROTECTED]
















  




  
  
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[Repeater-Builder] Telewave 400-512Mhz 250Watt Duplexer

2005-12-21 Thread Jerry
Title: Telewave 400-512Mhz 250Watt Duplexer








Model TPRD-4544. Excellent condition. List over $1360, Sell for $400 Super buy for someone!


Jerry WB6NYS [EMAIL PROTECTED]
















  




  
  
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Re: [Repeater-Builder] Re: Duplexer tuning with Return Loss Bridge

2005-12-21 Thread albemarle7





Skipp.Thank you for the info on duplexer tuningwith RF power 
change. Interesting. Maybe expansion of the actual can due to heat vs Invar 
rods?
Gary














  




  
  
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[Repeater-Builder] Duplexer tuning info from Eagle

2005-12-21 Thread albemarle7





Eric/Skipp/Jeff and other guru's.Thank you for the great information 
and suggestions on duplexer tuning. I downloaded 'Duplexer Tuning Using the 
EAGLE Return Loss Bridge' instruction sheet and find it very informative. Maybe 
this old dog can learn some new tricks.Nice Repeater-Builder site - good 
group.
Seasons Greetings to all.
Gary K2UQ
Trenton, NJ














  




  
  
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RE: [Repeater-Builder] Re: Vanity call resumes

2005-12-21 Thread N9WYS










If you go onto the FCCs ULS page
and drill down to the amateur licensing, there are the steps there to apply for
a vanity call Its not that difficult  I did it for a club
I belong to. (Will County Emergency Management Amateurs  we got call
sign W9WIL.) The main thing the
FCC is interested in is your . J



Mark  N9WYS











From: Repeater-Builder@yahoogroups.com
[mailto:Repeater-Builder@yahoogroups.com]
On Behalf Of Mark A. Holman
Sent: Wednesday, December 21, 2005
9:15 PM
To: Repeater-Builder@yahoogroups.com
Subject: Re: [Repeater-Builder]
Re: Vanity call resumes





If anyone read the notice the owner of that web page
is no longer interested in running the web page so it may go out someday unless
someone bought it .

wn1b8 wrote: 

Go to www.vanityhq.com. All the info you need is there.Scott Madison, WN1B--- In Repeater-Builder@yahoogroups.com, Maire-Radios maire-[EMAIL PROTECTED] wrote: 

how do you get a vanity call sign? could you please give me a 

little info? 

thanks- Original Message - From: N9WYS [EMAIL PROTECTED]To: Repeater-Builder@yahoogroups.comSent: Tuesday, December 20, 2005 7:17 PMSubject: RE: [Repeater-Builder] Vanity call resumes 

They discontinued after the hurricane problems along the Gulf 



coast - 



mainlybecause many hams in that area couldn't renew licenses and/or 



apply for 



vanity call signs for a while.Mark - N9WYS-Original Message-From: Repeater-Builder@yahoogroups.com[mailto:Repeater-Builder@yahoogroups.com] On Behalf Of Jim B.Sent: Tuesday, December 20, 2005 4:18 PMTo: Repeater-Builder@yahoogroups.comSubject: Re: [Repeater-Builder] Vanity call resumesCoy Hilton wrote: 

FCC processing of Vanity Calls scheduled to resume January 4 





2006. 





73AC0Y 

didn't know they stopped. can't imagine why they would either...(not that it matters to me anyway)-- Jim BarbourWD8CHLYahoo! Groups LinksYahoo! Groups Links 



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Re: [Repeater-Builder] Re: Duplexer tuning with Return Loss Bridge

2005-12-21 Thread albemarle7





Great idea (I hope) using a dual RF directional coupler as a Return Loss 
Bridge. We have a Bird dual coupler. Just hook up two Bird 43 slugs and meters 
and wham bam, tune away on low power of course. Or maybe some people have a dual 
needle wattmeter which would work well also? Cool beans.
Gary K2UQ














  




  
  
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[Repeater-Builder] Re: color tv antennas

2005-12-21 Thread John Everson
--- In Repeater-Builder@yahoogroups.com, Chris Huber [EMAIL PROTECTED] 
wrote:

 Come on Guys!
 
 I just want to know how to get HDTV on my repeater.  :-)
 
 Chris N6ICW
 

Don't get too excited Chris. I have HDTV on my repeater and it really 
messes with the 11 meter remote base...

John







 
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