sundance-communications.com/forum Forums Wiring - Telecom Carriers - Trunks & Services Cabling Telephones Systems Wiring Radio station interference on phones

With a radio station it's a lot easier.

Sam

I used the same as mdaniel. Works really good.
I used to have a client with the same problem but with no Radio station next door. Was electrical ground issue.

I don't know if I even want to get into this.

Went there yesterday, the system wasn't properly grounded, we grounded it and I never heard any radio station interference after that. By the way, this is a major station, with two 600' towers about 100' away from the building.

What is happening now is some phones are going crazy, the lines sound clean but some phones freeze up or get strange icons on the display. Do you think that RF can be causing these random problems?

Also the CO's don't even ring in on the system but I've narrowed it down (hope I'm right) to low ring voltage from telco, I'll post this in a new thread.

RF will absolutely cause intermittent problems exactly like that.

Use this RF choke from radioshack and your problems should go bye bye.

We had a customer with phones going off-hook to intercom randomly ---> two of those RF chokes and no more ghost in the machine. 2 days and 3 hours of troubleshooting, then $10 worth of radioshack parts... priceless.

PS - the exact same ones that others (merritt, michael, sam) have suggested.

Thanks everyone for your input. I'm on 1 day and 2 hours troubleshooting. I will try these solutions and post back.

This site = priceless.

Can't remember who makes them, but I've had good results with something that Graybar used to carry. The part number was 'PORFF'. Worked for AM and FM. Didn't always work, and sometimes had to put 1 at the jack AND 1 at the X-Connect. John C.