Re: [Repeater-Builder] Split site link via IP

2009-03-12 Thread Mike Naruta AA8K
Thank you Kevin. I understand and appreciate the problem you describe. However, I am not trying to download at 2 Meg; indeed the VOIP app is very happy on a 44 K dial-up with the other Internet provider. There seems to be adequate bandwidth, as I can load my cable connection with additional

Re: [Repeater-Builder] Split site link via IP

2009-03-12 Thread Kevin Custer
Mike, My reply was not in response to your packet loss, I was trying to describe other effects that had been brought up in the discussion by Paul. I'm not saying your provider isn't tampering with packets or IP's destine for competitors VoIP servers. What I am saying is depending on the

[Repeater-Builder] Quieting duplex noise from a tower

2009-03-12 Thread Paul N1BUG
OK guys... I thought I could figure this out on my own, but I was wrong. I could use some wisdom from the group! I have been chasing a stubborn case of duplex noise for a long time without success. The 2 meter repeater will run clean all day at 100 watts (or any lower power level) into a

Re: [Repeater-Builder] Quieting duplex noise from a tower

2009-03-12 Thread Chuck Kelsey
Suspect any other nearby fiberglass antenna in your search. Chuck WB2EDV - Original Message - From: Paul N1BUG paul_n1...@myfairpoint.net To: Repeater-Builder@yahoogroups.com Sent: Thursday, March 12, 2009 12:09 PM Subject: [Repeater-Builder] Quieting duplex noise from a tower OK

Re: [Repeater-Builder] Quieting duplex noise from a tower

2009-03-12 Thread Paul N1BUG
Thanks Chuck. What would you consider nearby? There is one fiberglass antenna on a tower 60 feet away. It was new when it went up 2 years ago, but my problem existed before that tower/antenna went up. Aside from that the nearest other fiberglass antenna (or antenna of any kind) is 250 feet

RE: [Repeater-Builder] Quieting duplex noise from a tower

2009-03-12 Thread Jeff DePolo
Three different antennas (all DB or Sinclair, two of them NEW) have been tried with no significant change. The feedline (Andrew LDF5-50A) has been swapped out once with no change. I think that leaves the tower or other nearby metal structures as the prime suspects. You didn't give a

[Repeater-Builder] OT:Ham Antenna Mistaken for Bomb

2009-03-12 Thread Don Kupferschmidt
Ya gotta watch out for those amateur radio operators. http://www.radioworld.com/article/76094 Also, there's a link to the ARRL's web site about Laura Smith who took over for Riley Hollingsworth and other interesting articles concerning locating power line noises, and even a story about the

Re: [Repeater-Builder] Quieting duplex noise from a tower

2009-03-12 Thread Paul N1BUG
Great questions, Jeff. Thanks! Answers below... Have you looked at the transmitter output with a spectrum analyzer during the occasions when you have desense to see if it's getting sloppy? No. I wanted to but I'm very isolated up here and do not have access to one. Have you tried other

Re: [Repeater-Builder] Quieting duplex noise from a tower

2009-03-12 Thread DCFluX
What type of power supply is in your system? Do you have a back up battery? If so what type of charger is on it? Any other repeater systems in close proximity?

RE: [Repeater-Builder] Quieting duplex noise from a tower

2009-03-12 Thread Jeff DePolo
Are you using a preamp? If so, what do you have ahead of it for filtering, and/or have you tested without the preamp? Yes I use a preamp. DB4062 duplexer and two DB4002B 11 pass cavities, pass cavity loops set for 1 dB insertion loss each cavity. I tried tightening it up to 3 dB per

[Repeater-Builder] SIMULCAST VOTING SYSTEMS dealer wanted pls.

2009-03-12 Thread Saviour Otsemobor
Hello All, Is there any SIMULCAST dealer out there.? pls contact me off list . regards savy.  

Re: [Repeater-Builder] Quieting duplex noise from a tower

2009-03-12 Thread Chuck Kelsey
Oh, it's difficult to say how close close really is, but keep it in mind if you run out of other fixes. The only test is to remove the suspect antenna from the site, and that may not be easy. Disconnecting it or grounding it will not help you diagnose. Also, I'll ask the dreaded question...

[Repeater-Builder] Re: Quieting duplex noise from a tower

2009-03-12 Thread wb8art
Hello Paul, Worked you a few times many moons ago. I would agree with Jeff with tapping and slightly causing movement with the repeater up with a weak signal. I have before experiened both an antenna (stationmaster) with internal broken joint which caused severe noise and desense but

Re: [Repeater-Builder] Quieting duplex noise from a tower

2009-03-12 Thread Paul N1BUG
Have you tried putting one or more pass cavities on the transmitter? It's more of a longshot, but if there's something strong coming back down your feedline it could be getting to your PA resulting in intermod. The problem would come and go with the strong signal obviously, and only when

Re: [Repeater-Builder] Re: Quieting duplex noise from a tower

2009-03-12 Thread Paul N1BUG
Hi Randy, I remember working you on 2 meters. That is very interesting. I tried bonding all the joints. If anything it actually seemed to make things worse!? I have been seriously thinking about Phillystran. It's a big expense not knowing for sure where the problem lies, but the only way to

Re: [Repeater-Builder] Quieting duplex noise from a tower

2009-03-12 Thread Paul N1BUG
Also, I'll ask the dreaded question... You are not using any foil/braid coax (LMR-400, 9913, etc.) for any jumpers are you? Nope, won't allow the stuff near my repeaters! grin LDF5-50A runs up the tower, RG-214 mil spec double silver shield for all jumpers. Paul

Re: [Repeater-Builder] Quieting duplex noise from a tower

2009-03-12 Thread Paul N1BUG
What type of power supply is in your system? Do you have a back up battery? If so what type of charger is on it? Any other repeater systems in close proximity? There is a backup battery which is float charged from the 13.8V DC power supply. Presently the supply on duty is a homebrew beast of

Re: [Repeater-Builder] Quieting duplex noise from a tower

2009-03-12 Thread neal Newman
Samething here in NJ. the Club put all new Db Antennas On the 100 foot tower. New Feedline. still had the noise...new grounding system. all sections bonded. still Noise. changed the guy cables to Phillystrand. Problem went away --- On Thu, 3/12/09, Chuck Kelsey wb2...@roadrunner.com wrote:

Re: [Repeater-Builder] Quieting duplex noise from a tower

2009-03-12 Thread Chuck Kelsey
Were they starting to show rust? Chuck WB2EDV - Original Message - From: neal Newman cozy...@yahoo.com To: Repeater-Builder@yahoogroups.com Sent: Thursday, March 12, 2009 4:55 PM Subject: Re: [Repeater-Builder] Quieting duplex noise from a tower Samething here in NJ. the Club put

[Repeater-Builder] WTB: Need manual for old Moto

2009-03-12 Thread Dennis Bridgeman
Hi, all, I am restoring an old Moto L43GGB desktop base. (OK, stop laughing.) So, I would like to find a manual, if someone has one collecting dust in an old box and would wish to sell it. Contact me direct at (my call) (at) verizon (dot) net. Thanks Dennis Bridgeman KCØFWN Bridgeman

[Repeater-Builder] Re: Help with N1274A VHF amplifier please

2009-03-12 Thread Albert
Thanks for the info Eric. I first learned of these amps from the Repeater-Builder genesis page. I am going to use it with my Genesis convertacom. I never knew they were used as far back as the MX300 and MT500 radios. That is interesting. Again, thanks for the info. I appreciate the model

Re: [Repeater-Builder] Re: Quieting duplex noise from a tower

2009-03-12 Thread hankjr941
Im having the same issue with my repeater on a 100 ft tower guyed with 3/16 In a message dated 3/12/2009 3:39:30 P.M. Central Daylight Time, paul_n1...@myfairpoint.net writes: Hi Randy, I remember working you on 2 meters. That is very interesting. I tried bonding all the joints.

Re: [Repeater-Builder] Re: Quieting duplex noise from a tower

2009-03-12 Thread hankjr941
Sorry, I have the same problem with my repeater on a 100 foot tower guyed with 3/16 cable. It seems when the temp drops below 60 F I get a squeal in the RX side of my repeater. I can shake the tower when its doing it and it will go away for a few minutes. We went up and grounded the

RE: [Repeater-Builder] Re: Quieting duplex noise from a tower

2009-03-12 Thread Michael Ryan
was the generation source. We changed the guys to Phillystran and never had another issue. _ Need a job? Find http://yellowpages.aol.com/search?query=employment_agenciesncid=emlcntusye lp0005 employment help in your area. __ NOD32 3931 (20090312) Information

[Repeater-Builder] zetron

2009-03-12 Thread chrisg7syt
Anyone have a pdf for a Zetron Model 35 - unit i need book to set up and program. for a 6mtr repeater in the uk gb3ct thanks from chris

RE: [Repeater-Builder] Re: Quieting duplex noise from a tower

2009-03-12 Thread kerinvale
. __ NOD32 3931 (20090312) Information __ This message was checked by NOD32 antivirus system. http://www.eset.com

[Repeater-Builder] Re: OT:Ham Antenna Mistaken for Bomb

2009-03-12 Thread motarolla_doctor
Don Kupferschmidt d...@... wrote: Ya gotta watch out for those amateur radio operators. http://www.radioworld.com/article/76094 Video at: http://www.kptm.com/Global/story.asp?S=9911221nav=menu606_2#

[Repeater-Builder] Re: Quieting duplex noise from a tower

2009-03-12 Thread Jake
I suspect I'm having similar issues on my tower - Nello 25N, 150' tall, 3/16 EHS, big grips grounding at tower base - guywires are bonded together and grounded to a single pole at each guy point). Do you mean connecting the guywires back to the tower itself, or connecting the towerbase to

RE: [Repeater-Builder] Re: Quieting duplex noise from a tower

2009-03-12 Thread Nate Duehr
This fixes the RF problem, but creates a new one. the guy anchors can now explode in a direct lightning strike if your shorting wires don't give up first. if the lightning thinks the path down the guy wire looks better than others. Nate WY0X From: Repeater-Builder@yahoogroups.com

RE: [Repeater-Builder] Split site link via IP

2009-03-12 Thread Nate Duehr
You also have to be careful when generalizing - Comcast here locally is actually the old ATT Broadband network, upgraded many times by Comcast after they purchased it. But the base technologies installed in each Comcast service area are NOT the same. (I can tell for sure that Comcast here

RE: [Repeater-Builder] Re: Help with N1274A VHF amplifier please

2009-03-12 Thread Eric Lemmon
Albert, I don't have the manual for that unit, but I can state with some confidence that you can terminate the output with a wattmeter and feed the input with one or two watts from a handheld at the desired frequency, and tune for maximum output. If the power output does not pass through a peak

Re: [Repeater-Builder] Re: Quieting duplex noise from a tower

2009-03-12 Thread Don Kupferschmidt
I've been looking at phillystran for many years now, but never implemented it. I've used 3/16 EHS with associated hardware. I too, have issues with noise. Any others out there who have, and can give any ideas on how to use it for guying a tower? Hardware used, hints and kinks? Or are there

RE: [Repeater-Builder] Split site link via IP

2009-03-12 Thread Nate Duehr
There's other things to look at... have you looked at your Comcast router (in the admin menus) and seen what the received signal/noise ratio is at your location, and what upstream power it's having to use to reach them? I had a problem when I first set up the Comcast line into the house where

RE: [Repeater-Builder] Split site link via IP

2009-03-12 Thread Nate Duehr
I've had NO trouble at all passing VoIP through Canopy. You might want to investigate ways to bring your links in over the Canopy/IP system at the site, Mark. Two of our repeater sites have EchoIRLP nodes, serviced off of Canopy and/or Trango Wireless gear. Works fine. No serious latency

RE: [Repeater-Builder] Split site link via IP

2009-03-12 Thread Nate Duehr
For those that trust these public things and don't think the ISP's know we're using them (and thus, open their connections to JUST these places, wide-open.) www.speedtest.net is a cool one that works well. Nate From: Repeater-Builder@yahoogroups.com

Re: [Repeater-Builder] Split site link via IP

2009-03-12 Thread Paul Plack
Nate, If they have their feces integrated enough to treat commercial customers better, that only proves they're clueless about branding. I considered upgrading to their commercial-grade products, but saw little reason to believe that it would improve reliability or customer service. I wonder

Re: [Repeater-Builder] Quieting duplex noise from a tower

2009-03-12 Thread Ralph Mowery
--- On Thu, 3/12/09, neal Newman cozy...@yahoo.com wrote: From: neal Newman cozy...@yahoo.com Subject: Re: [Repeater-Builder] Quieting duplex noise from a tower To: Repeater-Builder@yahoogroups.com Date: Thursday, March 12, 2009, 4:55 PM Samething here in NJ. the Club put all new Db

RE: [Repeater-Builder] Re: Quieting duplex noise from a tower

2009-03-12 Thread kerinvale
The tower is all steel so why wont the lightning hit the entire tower and guy ropes .Wether they are shorted to the tower or not a lightning hit will run through all the setup.I have had a VHF antenna hit with lightning and the tower was a1 ok and the antenna was blowen to pieces .All commercial

Re: [Repeater-Builder] zetron

2009-03-12 Thread Mike Morris WA6ILQ
At 03:15 PM 03/12/09, you wrote: Anyone have a pdf for a Zetron Model 35 - unit i need book to set up and program. for a 6mtr repeater in the uk gb3ct thanks from chris The brochure and the owners manual are on the repeater-builder web site. We are still looking for the service manual. Mike

[Repeater-Builder] Re: Quieting duplex noise from a tower

2009-03-12 Thread wb8art
Don, Its pretty straight forward. They have a size equivilent to the 3/16 in mechanical strength, and you should use the Phillystran preforms and timble sleeves. Make sure not going thru trees or other such things that could rub against it. Hope that answers it. But we had them up for 12 or

Re: [Repeater-Builder] Quieting duplex noise from a tower

2009-03-12 Thread no6b
At 3/12/2009 13:19, you wrote: When you changed out antennas and heliax, I presume you replaced any topside jumpers as well? Topside jumper and the jumper between duplexer and feedline were replaced. What kind of jumpers? Bob NO6B

Re: [Repeater-Builder] Re: Quieting duplex noise from a tower

2009-03-12 Thread Nate Duehr
Hell, if half the MOTOROLA-INSTALLED towers around here were built to their own specs, I'd be impressed. Most of them are using screw in guy anchors with no dead-mans, and are a good dust-up of wind away from falling over. Haven't seen a Moto-tower yet that met R-56 around here! You gotta