[Repeater-Builder] Re: color tv antennas

--- 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...

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

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. G

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

If you go onto the FCC’s ULS page and drill down to the amateur licensing, there are the steps there to apply for a vanity call…  It’s 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 in

[Repeater-Builder] Duplexer tuning info from Eagle

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

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

Skipp.Thank you for the info on duplexer tuning with RF power change. Interesting. Maybe expansion of the actual can due to heat vs Invar rods? Gary   YAHOO! GROUPS LINKS  Visit your group "Repeater-Builder" on the web.   To unsubscribe from this group,

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

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] YAHOO! GROUPS LINKS  Visit your group "Repeater-Builder" on the web.   To un

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

Title: Icom 144, 220, 440 Band Units Pictures on Request  Good condition.  $225 each or all for $600 Jerry  WB6NYS  [EMAIL PROTECTED] YAHOO! GROUPS LINKS  Visit your group "Repeater-Builder" on the web.   To unsubscribe from this group, send an email

[Repeater-Builder] Repeaters, 220 & 440

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] YAHOO! GROUPS LINKS  

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

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 an

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

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: Sent: Sunday, December 18, 2005 11:23 PM Subject: Re: [Repeater-Builder] Radio Shack 10% O

Re: [Repeater-Builder] cadillac,mi tower space needed

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

[Repeater-Builder] WANTED

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 [EMAIL PROTECTED]   YAHOO! GROUPS LINKS  Visit your group "Repeater-Builder" on the web.   To unsubscribe f

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, "Ma

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

- Original Message - From: "mch" <[EMAIL PROTECTED]> To: 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,

[Repeater-Builder] cadillac,mi tower space needed

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 wel

[Repeater-Builder] Re: color tv antennas

> 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 B&W antennas only cover >>> segments of each c

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

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 B&W antennas only cover segments of each > > channel while the color anten

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

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: > Sent: Wednesday, Decembe

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

- Original Message - From: "Jim B." <[EMAIL PROTECTED]> To: 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 >> B&W). The coding gains of digital allow it

[Repeater-Builder] Re: color tv antennas

> mch <[EMAIL PROTECTED]> wrote: > Skipp, > Usually I would not argue with you, but.. > So your point is that the B&W antennas only cover segments of each > channel while the color antennas cover the entire 6 MHz segment? Nope... not what I posted... > IOW, the B&W are resonant every 6 MH

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

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 si

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

Hap Griffin wrote: > - Original Message - > From: "Jim B." <[EMAIL PROTECTED]> > To: > 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 stori

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

Yes...I believe that's what I said. Directional is better for DTV. Hap Griffin WZ4O - Original Message - From: "mch" <[EMAIL PROTECTED]> To: Sent: Wednesday, December 21, 2005 1:24 PM Subject: Re: [Repeater-Builder] hdtv radio shack ant > Wouldn't that be equivallent to 'ghostin

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

- Original Message - From: "Jim B." <[EMAIL PROTECTED]> To: 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 w

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

--- 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 "si

RE: [Repeater-Builder] color tv antennas

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 Se

[Repeater-Builder] color tv antennas

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 r

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

Larry, Eagle is perhaps the best-known manufacturer of RLBs. Go here: RLBs made by Eagle range from about $400 to more than $900, depending upon the type of connectors, frequency range, and the precision. There are links on the above URL that t

Re: [Repeater-Builder] color tv antennas

Skipp, Usually I would not argue with you, but.. So your point is that the B&W antennas only cover segments of each channel while the color antennas cover the entire 6 MHz segment? IOW, the B&W are resonant every 6 MHz, but not continuous? Or... (resonance plots in ASCII graphic form) B&W:

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

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 w

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: > Sent: Tuesday, December 20, 2005 7:48 PM > Subject: Re: [Repeater-Builder] hdtv

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

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 v

[Repeater-Builder] 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. Mr S

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

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 > K

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

Compared to using a RLB in conjunction with a service monitor (such as an IFR 1500) or a network analyzer, the Bird 43 is cumbersome and time wasting. It will get the job done, but with less accuracy and much more time invested. I'd consider it a minimal effort at tuning a duplexer, not a thoro

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

> A return loss bridge (RLB) is an extremely useful > tool for tuning the pass function of a BpBr duplexer. Gets you into the ball park. One should know the desired adjustment posistions do change when the cavity is "under power". Higher rf power levels mean larger value changes (final adjus

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 B&W TV antennas. Supposedly, for color > TV you needed a Color TV antenna. > > B&W TV, Color TV, HDTV... t

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

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-

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

- Original Message - From: "mch" <[EMAIL PROTECTED]> To: 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

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

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: Sent: 21 December, 2005 09:26 Subject: RE: [Repea

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 Messag

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

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

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

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

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: Sent: 21 December, 2005 08:46 Subject: RE:

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 Eagl

[Repeater-Builder] Duplexer tuning

Here's a complete procedure right here on the group's web site. 73, Dick http://www.repeater-builder.com/ge/duptuning.html Yahoo! Groups Links <*> To visit your group on the web, go to: http://groups.yahoo.com/group/Repeater-Builder/ <*> To unsubscribe from this group, send an email

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

Gary:   The easiest instrument combo I've used to tune a duplexer is an RF sweep generator and a spectrum analyzer.   Use dummy load to terminate the duplexer ports not connected to the sweeper or analyzer.   If you need more help, feel free to email me directly.   73,   Dick W1NMZ   -

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

The Bird Model 43 is a typical RLB. You can also use a network analyzer. Dick - Original Message - From: "[EMAIL PROTECTED]" <[EMAIL PROTECTED]> To: Sent: 21 December, 2005 08:20 Subject: Re: [Repeater-Builder] Duplexer tuning with Return Loss Bridge Who makes a Return Loss Bridge? A

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 lo

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

Eric & the Group...   From discussion of vector network analyzers / return loss bridges on the list it 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

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

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 B&W is for the FM portion only. > > Merry Christmas To All! > > Fred W5VAY > > - Original Message - > From:

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

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

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 ===

[Repeater-Builder] Looking for some Motorola servics manuals.

I'm looking for the following Motorola manuals. R100 UHF repeater manual, Visar UHF and VHF, Maxtrac UHF and VHF. Please email off the list. Thanks, Al Yahoo! Groups Links <*> To visit your group on the web, go to: http://groups.yahoo.com/group/Repeater-Builder/ <*> To unsubscribe f

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

Fred, Did you earn the "worked all neighbors" award? Kind of sounds like it!! mike -Original Message- From: Repeater-Builder@yahoogroups.com [mailto:[EMAIL PROTECTED] Behalf Of FHS Sent: Wednesday, December 21, 2005 9:13 AM To: Repeater-Builder@yahoogroups.com Subject: Re: [Repeater-Buil

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

The Channel 2 Color Ant is for all of 6 Meter. The B&W is for the FM portion only. Merry Christmas To All! Fred W5VAY - Original Message - From: "Daron J. Wilson" <[EMAIL PROTECTED]> To: Sent: Tuesday, December 20, 2005 7:57 PM Subject: RE: [Repeater-Builder] hdtv radio shack ant ???

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

I suppose you can have black and white ... just turn off the color. Neil 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: > Sent: Sunday, December 18,

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

Are they still black and white Neil? Just could not pass that up Vincent N6OA - Original Message - From: "Neil McKie" <[EMAIL PROTECTED]> To: 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 RC

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

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.h