Edwin, I have a couple 750 KVA isolation transformers, 220 or 110 to 110, free for the shipping. Weighs about 40 pounds.
73, Chas. At 03:51 PM 12/13/2006, Marzan, Edwin wrote: >The strangest thing has occurred since I installed my Flex Radio a few >weeks ago and I'm pretty sure it's a grounding problem. I have a Yaesu >FT-847 and a SDR-1000 hooked up to the same G5RV Jr via a coaxial >switch. The G5RV Jr is on the roof mounted on a 20 ft mast configured as >an inverted vee. Ever since I connected the SDR-1000 to the coaxial >switch the FT-847 receive is humming on 80 meters. The SDR-1000 is >humming on 80 meters across the entire band. I also have 2 AM radios >that I use to listen to the news in different rooms and they hum as >well. I also hear the hum on my landline telephone. Note that this >occurs when the SDR-1000, power supply (MFJ 4225) and computer is turned >off as well as when they are turned on. There is no difference. If I >disconnect the SDR-1000 from the coaxial switch the hum disappears >altogether. Also when I'm holding the pl-259 as I'm attaching it to the >coaxial switch I can feel a tingly sensation in my hand when I touch the >metal case of the coaxial switch. We all know that can't be good!! > >I live in an old building and I read that the electrical systems in most >old buildings are not grounded properly. I "verified" this by using a >surge protected gound strip which should indicate proper ground when the >green LED lights when connected. The green LED does not light. I tested >the power strip in a friend's house and the green LED lights in his home >which is relatively new. This also means that my equipment will not be >protected against a power surge should that occurr. > >BTW... both transceivers are connected to the same power outlet but on >opposite sides. > >Any suggestions? Can an electrician create a true ground? That is >probably where I would like to start. > > >Thanks, > >Edwin Marzan >AB2VW _______________________________________________ FlexRadio mailing list [email protected] http://mail.flex-radio.biz/mailman/listinfo/flexradio_flex-radio.biz Archive Link: http://www.mail-archive.com/flexradio%40flex-radio.biz/ FlexRadio Homepage: http://www.flex-radio.com
