Patrick: Cable systems need very good shielding to prevent over-the-air signals and noise from getting into the cable system. Because of that, you can easily and cheaply buy quad shielded RG6.
It should have no leakage through the shield. That doesn't mean the problem is totally solved. You should also install a choke balun and a good receiver ground. That makes sure that anything on the shield (it's an antenna too) has an easy path to ground and a difficult path towards your receiver. Probably a better coax will notably improve your coax leakage. Chances are somewhat in your favor the choke balun isn't necessary. Chuck -----Original Message----- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf Of Patrick Martin Sent: Friday, August 17, 2007 9:27 PM To: irca@hard-core-dx.com; [EMAIL PROTECTED] Subject: [IRCA] More coax experiments I went back out tonight after tuning in KFI 640 and I could hear something u/KFI off the Eastern beverage. I tried the test again with grounding the far end of the coax at the matching transformer. KFI got weaker and the station(s) behind KFI were more there. I am beginning to really feel that the coax indeed is affecting the directional pattern of the antennas. But what to do about it.? I can run anything under the house, but the last 6-8 feet has to be buried, so open wire probably is not an option. I yes I could run coax and ground the shield every few feet. That might help, but it is alot of extra work. I wonder if there is coax out there that has no extra pickup? It must be the shielding. 73, Patrick Patrick Martin KAVT Reception Manager _______________________________________________ IRCA mailing list IRCA@hard-core-dx.com http://montreal.kotalampi.com/mailman/listinfo/irca Opinions expressed in messages on this mailing list are those of the original contributors and do not necessarily reflect the opinion of the IRCA, its editors, publishing staff, or officers For more information: http://www.ircaonline.org To Post a message: irca@hard-core-dx.com _______________________________________________ IRCA mailing list IRCA@hard-core-dx.com http://montreal.kotalampi.com/mailman/listinfo/irca Opinions expressed in messages on this mailing list are those of the original contributors and do not necessarily reflect the opinion of the IRCA, its editors, publishing staff, or officers For more information: http://www.ircaonline.org To Post a message: irca@hard-core-dx.com
