And , by the way, CAT 5 was never intended for underground use...not even if it is in PVC conduit...water WILL eventually get into it and ruin it. You should use "aerial and duct" cable for underground runs in pipe, and some sort of "BSW" or buried service wire (almost always flooded with a silicone compound) for direct burial.....and don't forget the lightning protection! I think Wiliam is on the right track here....an unbalance will produce a hum of sorts, usually with noticible clicks, pops, buzzes, etc. and will often change in "sound" as electrical loads are switched on and off...a "ground" on one of the pair will usually result in a much louder , lower frequency hum. Jim Schultz Communications
----- Original Message ----- From: "William C. Ratcliffe" <[EMAIL PROTECTED]> To: "Collin" <[EMAIL PROTECTED]>; <[EMAIL PROTECTED]> Sent: Monday, November 12, 2001 1:29 PM Subject: KX-T: Re: Long Distance hum > Another thing to look for would be --something-- on your side of the demarc > that is creating an unbalance........caller id box, identiring splitter, > defective additional surge/lightning proctection, one side of the line > touching a unused conductor in another pair, etc. These items won't always > show up with an ohmmeter, and might only show with a "Sidekick" meter. The > hum won't come on the line until the unbalance gets connected with the > footage of the telco's cable facilities.......... > > Just a thought.......... > > > ----- Original Message ----- > From: "Collin" <[EMAIL PROTECTED]> > To: <[EMAIL PROTECTED]> > Sent: Monday, November 12, 2001 12:05 PM > Subject: KX-T: Long Distance hum > > > > Greetings Masters of Low Voltage! > > > > I have hum problem I'm trying to figure out. From where the phone line > comes in to a back house, it travels about 150' underground via CAT5, then > another 75' in the attic of the front house to the KX-TA625. Another CO > line comes in directly to the front house. The line traveling the distance > from the back house has a noticable hum, while the front house line does > not. > > > > This hum is not at the demarq. point, so I don't think it is the phone co. > > > > Anyone have any suggestions? > > > > Thanks, > > > > Collin > > > > > > > > ********************************************************* > > * To unsubscribe, e-mail [EMAIL PROTECTED] * > > * The KXT-Digest Home Page: http://kxthelp.com/ * > > ********************************************************* > > > > > > ********************************************************* > * To unsubscribe, e-mail [EMAIL PROTECTED] * > * The KXT-Digest Home Page: http://kxthelp.com/ * > ********************************************************* > ********************************************************* * To unsubscribe, e-mail [EMAIL PROTECTED] * * The KXT-Digest Home Page: http://kxthelp.com/ * *********************************************************
