Re: [Repeater-Builder] 900 MHz WISP on repeater tower?
Make the WISP secondary to the primary user which would be your repeater or any future amateur projects. No interference or they have to abandon the site. Take their money if it works out, lose the money if they cause problems and terminate the contract. Mike WBØGOA --- On Wed, 1/21/09, AJ aj.grant...@gmail.com wrote: From: AJ aj.grant...@gmail.com Subject: Re: [Repeater-Builder] 900 MHz WISP on repeater tower? To: Repeater-Builder@yahoogroups.com Date: Wednesday, January 21, 2009, 3:41 PM And scratch out the chance of ever making friends with any other amateur in the area that has deployed, or is thinking of deploying, a 902 MHz ham repeater... The 900 MHz ISM crap makes the 902 Amateur band in a lot of the country almost unusable... We actually had a WISP removed from our site due to the noise floor they stirred up with their certified Motorola gear... Right of first refusal is rather helpful in these cases. 73s, AJ, K6LOR On Wed, Jan 21, 2009 at 2:37 PM, Mike Lyon mike.l...@gmail. com wrote: Find out what gear they are using. Make sure it's FCC certified. If you have a spectrum analyzer, or have access to one, have them fire up the gear and make sure it doesn't have any spurious spikes within the 440 and 2m ham band. -Mike On Wed, Jan 21, 2009 at 1:34 PM, Paul N1BUG paul_n1...@verizon. net wrote: I could use a little help here. I have a repeater tower with 2 meter and 440 repeater on it. I have been contacted by a wireless internet service provider about putting some 900 MHz stuff on my tower. The deal they are offering is attractive but I'm wondering if there would be interference issues between their stuff and my repeaters. I'm going to be setting up a meeting to discuss technical aspects of the proposed system, but I have no experience or knowledge in this area and am not sure what questions I should be asking them. Any suggestions or advice? Thanks! Paul N1BUG
Re: [Repeater-Builder] Tower Identification
The tower is a 45G. 25G has swaged legs at top. 45G and 55G has welded sleeves on bottom of legs. 45G uses 5/16 and 7/16 bolts for connection of legs. 55G uses 7/16 for all leg connections. In the pictures I seen two different splice connection bolts like the 45G uses. 45G is 1' 6 outside to outside of leg. 55G is 1/2 more due to leg dia being more. Seek professional help to be safe on all towers. Cheers, Mike WBØGOA --- On Sun, 1/11/09, Chuck Kelsey wb2...@roadrunner.com wrote: From: Chuck Kelsey wb2...@roadrunner.com Subject: Re: [Repeater-Builder] Tower Identification To: Repeater-Builder@yahoogroups.com Date: Sunday, January 11, 2009, 5:34 PM It appears to be a 45G, some of which is in not so good condition. Depending on how bad the rust is on the upper part, it might not have much life left. Almost looks like the bottom may have already been painted at one time. Chuck WB2EDV - Original Message - From: Kris Kirby k...@catonic. us To: Repeater-Builder@ yahoogroups. com Sent: Sunday, January 11, 2009 4:36 PM Subject: Re: [Repeater-Builder] Tower Identification On Wed, 7 Jan 2009, Chuck Kelsey wrote: How can I identify an otherwise unknown tower as Rohn 20, 25, 45, etc. or even another tower manufacturer altogether? I'm printing off the Rohn 25, 45, and 55 section details, but beyond those drawings, I've no other clues to ID the tower. Post a picture. http://catonic. us/wigi/pics/ ham/tower/ I believe it to be a Rohn 45. It is approximately 18 from side to side, and has the Z railing. -- Kris Kirby, KE4AHR k...@catonic. us But remember, with no superpowers comes no responsibility. --rly
Re: [Repeater-Builder] Tower Identification
--- On Mon, 1/12/09, Mike Folta aero...@yahoo.com wrote: From: Mike Folta aero...@yahoo.com Subject: Re: [Repeater-Builder] Tower Identification To: Repeater-Builder@yahoogroups.com Date: Monday, January 12, 2009, 10:51 AM The tower is a 45G. 25G has swaged legs at top. 45G and 55G has welded sleeves on bottom of legs. 45G uses 5/16 and 7/16 bolts for connection of legs. 55G uses 7/16 for all leg connections. In the pictures I seen two different splice connection bolts like the 45G uses. 45G is 1' 6 outside to outside of leg. 55G is 1/2 more due to leg dia being more. Seek professional help to be safe on all towers. Cheers, Mike WBØGOA --- On Sun, 1/11/09, Chuck Kelsey wb2...@roadrunner.com wrote: From: Chuck Kelsey wb2...@roadrunner.com Subject: Re: [Repeater-Builder] Tower Identification To: epeater-buil...@yahoogroups.com Date: Sunday, January 11, 2009, 5:34 PM It appears to be a 45G, some of which is in not so good condition. Depending on how bad the rust is on the upper part, it might not have much life left. Almost looks like the bottom may have already been painted at one time. Chuck WB2EDV - Original Message - From: Kris Kirby k...@catonic. us To: Repeater-Builder@ yahoogroups. com Sent: Sunday, January 11, 2009 4:36 PM Subject: Re: [Repeater-Builder] Tower Identification On Wed, 7 Jan 2009, Chuck Kelsey wrote: How can I identify an otherwise unknown tower as Rohn 20, 25, 45, etc. or even another tower manufacturer altogether? I'm printing off the Rohn 25, 45, and 55 section details, but beyond those drawings, I've no other clues to ID the tower. Post a picture. http://catonic. us/wigi/pics/ ham/tower/ I believe it to be a Rohn 45. It is approximately 18 from side to side, and has the Z railing. -- Kris Kirby, KE4AHR k...@catonic. us But remember, with no superpowers comes no responsibility. --rly
