Re: [Repeater-Builder] Re: Ground Plane and Dipole Diatribe

2010-02-23 Thread Chuck Kelsey
There were several CB antennas that used this method, but I don't recall any commercial antennas that did. Chuck WB2EDV - Original Message - From: Eric Grabowski To: Repeater-Builder@yahoogroups.com Sent: Monday, February 22, 2010 10:33 PM Subject: [Repeater-Builder] Re:

[Repeater-Builder] Re: Ground Plane and Dipole Diatribe

2010-02-23 Thread Tyke
i have only seen the 5% rule applied when building yagi antennas. the reflector is normally 5% longer and all subsequent directors are are 5% shorter thn the preceding element!! now , as for the DB-201 ground plane, It is a 1/2 wave folded loop ground plne which exhibits no gain. the

[Repeater-Builder] GE data cable schematic

2010-02-23 Thread k4agham
Hi, Does anyone have a schematic for the 19B801971P13 data cable, used on the MRK I think Thanks, John

[Repeater-Builder] Repeater Controller ACC RC-85

2010-02-23 Thread felix rosasco
Hello to all, Any one knows where to get the Software upgrade for the controller RC-85? Linkcomm told me they don't have it. Thanks 73, Felix, KC7WVE

Re: [Repeater-Builder] Repeater Controller ACC RC-85

2010-02-23 Thread DCFluX
Don't know who you talked to over there but here is the link for it off of their own website... http://www.link-comm.com/ftp/acc/rc85.zip On Tue, Feb 23, 2010 at 1:02 PM, felix rosasco felixp...@yahoo.com wrote: Hello to all, Any one knows where to get the Software upgrade for the

[Repeater-Builder] Re: Ground Plane and Dipole Diatribe

2010-02-23 Thread skipp025
Eric Grabowski ejgrabow...@... wrote: Skipp, I wonder if the antenna you stole this idea from was the Hy-Gain GPG-1 high band ground plane antenna we used to use in the late '60s and early '70s. The dc ground was a real feature of this simple antenna. Sure wish I could remember how

Re: [Repeater-Builder] Re: Can the 4th harmonic of 1250 AM keep UHF repeaters locked up?

2010-02-23 Thread KT9AC
I was able to match up the audio coming through the repeater and the local AM station. My latest theory is that their signal is so strong that its blowing into the receiver's front end and multiplying/mixing there (past the bandpass filters and all). They are heterodyne receivers after all.

[Repeater-Builder] Re: Ground plane yada yada

2010-02-23 Thread skipp025
Al Wolfe k...@... wrote: The straight skinny about the beta or hairpin match can be found in a QST article, April 1962, by Gooch and Gardiner. It explains how this matching scheme works. The driven element is shortened making it capacitive. Then the inductive reactance of the hairpin

Re: [Repeater-Builder] Re: Can the 4th harmonic of 1250 AM keep UHF repeaters locked up?

2010-02-23 Thread Jim WB5OXQ inb Waco, TX
Is it possible the AM signal is getting into an audio stage instead of the receiver front end? I had that happen once. - Original Message - From: KT9AC kt...@ameritech.net To: Repeater-Builder@yahoogroups.com Sent: Tuesday, February 23, 2010 4:01 PM Subject: Re: [Repeater-Builder] Re:

RE: [Repeater-Builder] Re: Can the 4th harmonic of 1250 AM keep UHF repeaters locked up?

2010-02-23 Thread Jeff DePolo
I'm considering an ICE broadcast high-pass filter that cuts off at 1.8Mhz (model 402). I have an email into them to see how well it might work at 448 Mhz. Tony Before you spend any real money, you might just try a shorted quarterwave stub. If you want, I can make one up quick and see

Re: [Repeater-Builder] Re: Can the 4th harmonic of 1250 AM keep UHF repeaters locked up?

2010-02-23 Thread DCFluX
How about 1.25 MHz RF coming down the outer jacket of the UHF antenna and into the ground of the system? You have about 200 ft or so of coax? Try a mag mount antenna temporarily. Not really sure how you'd cure that though. Not sure if snap on RF beads would work on coax with a signal going in

RE: [Repeater-Builder] Re: Can the 4th harmonic of 1250 AM keep UHF repeaters locked up?

2010-02-23 Thread Mark HARRISON
I would have thought good grounding practices on the feeder and equipment at the base of the tower would have pretty well bypassed any 1.25MHz stuff. Ferrite 'beads' will reduce common mode pickup on coaxial cables without any effect at all on the signal inside the coax. Don't expect too much

RE: [Repeater-Builder] Re: Can the 4th harmonic of 1250 AM keep UHF repeaters locked up?

2010-02-23 Thread Mark HARRISON
Hi Tony, Are you using a duplexer on this repeater? A lot of cavity filters act as a short circuit to DC and low frequencies, so additional filtering is unlikely to help. I can only think of one type of cavity that has a DC path between from input to output (via an internal inductor) and not to

Re: [Repeater-Builder] Re: Ground plane yada yada

2010-02-23 Thread allan crites
I appreciate the contribution of the information found in the ARRL April 1962 QST article, which I have reviewed, and the technical parameters of impedance matching provided, however the information presented relates to the shortening of a 1/2 WL simple dipole from the resonant freq. terminal

Re: [Repeater-Builder] Re: Can the 4th harmonic of 1250 AM keep UHF repeaters locked up?

2010-02-23 Thread KT9AC
If you wouldn't mind...that would be interesting to see how it works. DCFluX wrote: How about 1.25 MHz RF coming down the outer jacket of the UHF antenna and into the ground of the system? You have about 200 ft or so of coax? Try a mag mount antenna temporarily. Not really sure how you'd

Re: [Repeater-Builder] Re: Can the 4th harmonic of 1250 AM keep UHF repeaters locked up?

2010-02-23 Thread KT9AC
Mark et al, Yes, this repeater is using the Motorola T1500 series bandpass cavities (two each for rx and tx). I've tried running rx and tx both duplex and seperate (borrowing a nearby antenna with permission). I can hear the interference underneath my signal when I'm about 2 miles away and

RE: [Repeater-Builder] Re: Can the 4th harmonic of 1250 AM keep UHF repeaters locked up?

2010-02-23 Thread daniel haines
How long is your feed line? Do you have any toriods on your feed line, where it comes in your shack? To: Repeater-Builder@yahoogroups.com From: kt...@ameritech.net Date: Tue, 23 Feb 2010 16:01:45 -0600 Subject: Re: [Repeater-Builder] Re: Can the 4th harmonic of 1250 AM keep UHF

[Repeater-Builder] Motorola cabinet key wanted

2010-02-23 Thread Gary Schafer
I am in need of a cabinet key for an old Motorola base station cabinet. It is an old low band 1/4 kw rig. Had 100TH tubes in final. This is the 6 foot tall cabinet. Anyone know the key number for these? Have a key? Also have an old GE progress line base cabinet that needs a key. This cabinet is

RE: [Repeater-Builder] Motorola cabinet key wanted

2010-02-23 Thread Andrew Seybold
The Motorola key should be a 2135 and the GE Key is probably a BF10A, they are hard to find but around-I can make you copies if you want to pay the key making price and postage. Andy W6AMS From: Repeater-Builder@yahoogroups.com [mailto:repeater-buil...@yahoogroups.com] On Behalf Of Gary

Re: [Repeater-Builder] Motorola cabinet key wanted

2010-02-23 Thread Lee Pennington
Andy, Any possibility that you could come up with an EFJohnson Deskmate station key?? de Lee K4LJP 73 On Tue, Feb 23, 2010 at 9:18 PM, Andrew Seybold aseyb...@andrewseybold.comwrote: The Motorola key should be a 2135 and the GE Key is probably a BF10A, they are hard to find but around—I

RE: [Repeater-Builder] Motorola cabinet key wanted

2010-02-23 Thread ray kalbfeld
any motorola key 2135 will fit, we always made them the same unless you ordered it specially keyed Raymond P. Kalbfeld 16850 Collins Avenue Suite 112-463 Sunny Isles Beach, Florida 33160 Cell 786-267-7555 Office 305-831-1488 rpkalbf...@hotmail.com To:

RE: [Repeater-Builder] Motorola cabinet key wanted

2010-02-23 Thread Andrew Seybold
Let me see if I have one—will let you know Andy From: Repeater-Builder@yahoogroups.com [mailto:repeater-buil...@yahoogroups.com] On Behalf Of Lee Pennington Sent: Tuesday, February 23, 2010 6:26 PM To: Repeater-Builder@yahoogroups.com Subject: Re: [Repeater-Builder] Motorola cabinet key

RE: [Repeater-Builder] Motorola cabinet key wanted

2010-02-23 Thread Bill Hudson
Just because I gamble a little - I'm going to bet that the older Motorola cabinet is a CH751. This is a one sided key unlike a 2135. The Micor cabinets became a 2553. Cabinet Keys more prominent in the high power stations. I'll go along with the BF10a for the Prog Line - that's for

RE: [Repeater-Builder] Motorola cabinet key wanted

2010-02-23 Thread Gary Schafer
Hi Bill, The key is like a 2135 and a 2135 will fit in the lock (I have a 2135) but it will not open it. I actually have two of these station cabinets and my 2135 key will not open either cabinet. I kind of remember that some of the cabinets had a different key from the mobiles way back

Re: [Repeater-Builder] Motorola cabinet key wanted

2010-02-23 Thread Jim McLaughlin
Well I'd try a 2 3 3 5, fits where a 2 1 3 5 goes and may do the job. Jim- WA9FPT - Original Message - From: Gary Schafer To: Repeater-Builder@yahoogroups.com Sent: Tuesday, February 23, 2010 9:54 PM Subject: RE: [Repeater-Builder] Motorola cabinet key wanted Hi

Re: [Repeater-Builder] Motorola cabinet key wanted

2010-02-23 Thread Captainlance
Chicago Lock Co, key # 2553 - Original Message - From: Gary Schafer To: Repeater-Builder@yahoogroups.com Sent: Tuesday, February 23, 2010 10:54 PM Subject: RE: [Repeater-Builder] Motorola cabinet key wanted Hi Bill, The key is like a 2135 and a 2135 will fit in

Re: [Repeater-Builder] Motorola cabinet key wanted

2010-02-23 Thread Jim McLaughlin
Dumb fingers... make that #2 5 5 3. Jim- WA9FPT - Original Message - From: Gary Schafer To: Repeater-Builder@yahoogroups.com Sent: Tuesday, February 23, 2010 9:54 PM Subject: RE: [Repeater-Builder] Motorola cabinet key wanted Hi Bill, The key is like a 2135

[Repeater-Builder] Re: Motorola cabinet key wanted

2010-02-23 Thread cracked
You mean 2553 right? James K7ICU --- In Repeater-Builder@yahoogroups.com, Jim McLaughlin dearbo...@... wrote: Well I'd try a 2 3 3 5, fits where a 2 1 3 5 goes and may do the job. Jim- WA9FPT - Original Message - From: Gary Schafer To: Repeater-Builder@yahoogroups.com

Re: [Repeater-Builder] Re: Motorola cabinet key wanted

2010-02-23 Thread Jim McLaughlin
That's what I said !...made a mistake on the first posting. Jim- WA9FPT - Original Message - From: cracked To: Repeater-Builder@yahoogroups.com Sent: Tuesday, February 23, 2010 10:23 PM Subject: [Repeater-Builder] Re: Motorola cabinet key wanted You mean 2553

RE: [Repeater-Builder] Motorola cabinet key wanted

2010-02-23 Thread ray kalbfeld
how many Johnson keys you need? Raymond P. Kalbfeld 16850 Collins Avenue Suite 112-463 Sunny Isles Beach, Florida 33160 Cell 786-267-7555 Office 305-831-1488 rpkalbf...@hotmail.com To: Repeater-Builder@yahoogroups.com From: localjunkpedd...@gmail.com Date: Tue, 23 Feb 2010

RE: [Repeater-Builder] Motorola cabinet key wanted

2010-02-23 Thread ray kalbfeld
then it takes a MOT1 key i will look for one I know i have a bunch of both keys Raymond P. Kalbfeld 16850 Collins Avenue Suite 112-463 Sunny Isles Beach, Florida 33160 Cell 786-267-7555 Office 305-831-1488 rpkalbf...@hotmail.com To: Repeater-Builder@yahoogroups.com From:

RE: [Repeater-Builder] Motorola cabinet key wanted

2010-02-23 Thread Bill Hudson
Yep - then it's a 2553 (I think it's a 255x) just can't remember the last number. They are more difficult to find. Mine is a copy - and there was only room to print the 255 and the X couldn't fit on the key. If someone doesn't take care of you here - I can get copies. Bill Hudson -

RE: [Repeater-Builder] Motorola cabinet key wanted

2010-02-23 Thread Bill Hudson
Sorry for posting what has already been said. Lots happened in the last couple of hours. Like is said - it's probably a Cabinet 2553. The MOT-1 is not for cabinets so don't waste your time. Bill - W6CBS - Motorola Class of 1983 _ From: Repeater-Builder@yahoogroups.com

[Repeater-Builder] Re: Motorola cabinet key wanted

2010-02-23 Thread skipp025
Depending on how far back you go... Motorola has built cabinets with at least 4 to 6 different possible locks. Some of the old ones are really obscure... MOT-1 2553 2135 ... and a few that look like the above numbers but are not. Someone mentioned the CH751, which I also have but I

[Repeater-Builder] Micor UHF Repeater Base 9.6 vdc current requirement?

2010-02-23 Thread skipp025
re: Micor UHF Repeater Base 9.6 vdc current requirement? Any of you Micor People know the actual total 9.6 volt supply current requirement? ... as in removing the power supply and running the equipment off battery power. The 9.6 vdc is still required but at how much current? Anyone know the

RE: [Repeater-Builder] Motorola cabinet key wanted

2010-02-23 Thread ka9qjg
Let Me tell You youngsters out here How bad Memory loss is , as Some of us get older I could swear that on this group or one I use Someone Posted a File about KEYS But for the life of Me I cannot find it , It listed Everything . And I have searched for 2 hours trying to help but did not

RE: [Repeater-Builder] Motorola cabinet key wanted

2010-02-23 Thread ray kalbfeld
I hear you , at 72 I am still working for Motorola and am glad the old memory is still intact at present _ Hotmail: Powerful Free email with security by Microsoft.

RE: [Repeater-Builder] Motorola cabinet key wanted

2010-02-23 Thread ray kalbfeld
Well As a verteran employee of motorola to this very day, We have MOT1 locks in repeater and transmitter cabinets, but YES 2553 also was in many relic systems Raymond P. Kalbfeld 16850 Collins Avenue Suite 112-463 Sunny Isles Beach, Florida 33160 Cell 786-267-7555 Office

Re: [Repeater-Builder] Micor UHF Repeater Base 9.6 vdc current requirement?

2010-02-23 Thread Eric Grabowski
In a mobile, that would depend on what's in the drawer unit. The RF preamp, PL encoder, and PL decoder board draw power from the 9.6 volt line. Other options may as well. If memory serves, and I wouldn't recommend you take this to the bank, Motorola specified a maximum current draw of 1.2 amps

RE: [Repeater-Builder] Motorola cabinet key wanted

2010-02-23 Thread Bill Hudson
This is what you saw - and this is what you are looking for: http://www.repeater-builder.com/keyspage/keyspage-index.html Bill Hudson W6CBS Ex-Motorola 1983 _ From: Repeater-Builder@yahoogroups.com [mailto:repeater-buil...@yahoogroups.com] On Behalf Of ka9qjg Sent:

[Repeater-Builder] Re: Repeater Controller ACC RC-85

2010-02-23 Thread wa1nvc
Try http://www.accrepairs.com This is the web site for ACC Paul who does all the ACC upgrades, repairs, etc. He is very quick to answer any questions you might have also. Roger WA1NVC --- In Repeater-Builder@yahoogroups.com, DCFluX dcf...@... wrote: Don't know who you talked to over there