This is not an uncommon problem. Cable channel 18 (I think) is right in the middle of the 2 meter band. If the cable system has a leak or the customer has a leak in the house, they will pick you up on cable. Unless running a kilowatt, it is not likely your problem. I do know that the coax cable connectors that people can buy from Radio Shack or others that slip on instead of screw on have caused all types of problems. Try working with your neighbor and check his coax cables throughout the home usage and insure that are tight and not the slip-on type. If all seems well, then it is likely that the cable company has a leak at one of their cable junctions or amplifiers.

Also tune around for any unknown weak signals on two meters that do not appear to go away. If you hear any, you might wander around with a handi-talkie and see if you can isolate the problem. Remember, you are operating two-meters and are licensed to do so. The cable companies must protect the two meter frequencies from being interfered with and for them not to interfere. The key here is to be civil and work with them to show them the error of their ways.

Regards,

Reid, W4UPD

w0dxz@aol.com wrote:

I have a TVI problem that may curtail my? ham operation... I run 5 watts on 145.920,? FM,? to a beam 5 feet above my roof. my next door neighbor says I am getting into their TV,,, they have cable...

I need some help,,, I think it is a leak in the cable system... but how do I approach the? cable company, and how do i? make sure it isnt my problem... not theirs.? I have new 9913,,,

Bob W0DXZ _______________________________________________ Sent via AMSAT-BB@amsat.org. Opinions expressed are those of the author. Not an AMSAT-NA member? Join now to support the amateur satellite program! Subscription settings: http://amsat.org/mailman/listinfo/amsat-bb

On Mon, Apr 21, 2008 at 07:14:44PM -0400, w0dxz@aol.com wrote:

I have a TVI problem that may curtail my? ham operation... I run 5 watts on 145.920,? FM,? to a beam 5 feet above my roof. my next door neighbor says I am getting into their TV,,, they have cable...

I need some help,,, I think it is a leak in the cable system... but how do I approach the? cable company, and how do i? make sure it isnt my problem... not theirs.? I have new 9913,,,

Channel 18 analogue cable tv is smack dab in the amateur 2m band. Ask them if it is on all channels or a specific channel. I bet you it is channel 18.

As far as rectifying this problem, I have no idea, but if it is what I think it is, it's really up to the cable provider I would think.

- 73 Diane VA3DB -- - db@FreeBSD.org db@db.net http://www.db.net/~db

At 04:14 PM 4/21/2008, w0dxz@aol.com wrote:

I have a TVI problem that may curtail my? ham operation... I run 5 watts on 145.920,? FM,? to a beam 5 feet above my roof. my next door neighbor says I am getting into their TV,,, they have cable...

Very common problem. You didn't give us many details, so I'm gonna guess this is the old channel 18 problem.

You also didn't say whether the neighbor tunes to this channel using the TV or a cable box or what.

Cable TV channel 18 is at 145.25 MHz. Loose connections in the cable system (probably on or in your neighbor's house) are the most likely cause. The technical name of this problem is "cable ingress".

Cable company near me used to have disney channel on 18, and ingress from ham signals caused lots of complaints. They changed the lineup to put something less widely viewed on 18 to fix the problem.

Call the cable TV company and ask for help with a cable ingress problem. Its their problem.