[RE-wrenches] Exeltech

[Richard Perez, Home Power magazine]

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Hello Wrenches

We've used a variety of Exeltech inverters here for over eight years 
now--SI series, XP series and the big MX series. In terms of RFI, the 
Exeltechs are good as any and better than some....

We extensively use all types and frequencies of radio here-- VHF 
radiotelephone, HF and VHF ham radio, FM stereo, broadcast TV, cell 
phone, and AM broadcast radio. We currently have two Exeltechs 
running 24/7, a 12 VDC XP1100 and a 24 VDC MX. We experience no 
detectable RFI from these inverters.

Whomever mentioned that filtration in the particular radio device is 
the key factor is entirely right. John's mention of a filter on the 
DC cables feeding the inverter is right on--most RFI made by pure 
sine wave inverters originates on the DC input cables. Use a choke or 
make a twisted pair of the cables feeding the inverter. And of 
course, physical separation helps--located all antennas and radio 
gear as far from the inverter as possible.

Hope this helps.

Richard Perez N7BCR

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