Antenna Tuner MFJ 949 E KK4WW Amateur Radio

Antenna Tuner MFJ 949 E
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http://en.wikipedia.org/wiki/Antenna_...

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All about Voltage Standing Wave Ratio SWR -
http://en.wikipedia.org/wiki/Standing...

This tuner minimizes the VSWR between the transmitter & the tuner- it does not reduce or change the VSWR in the feed line to the antenna, that is done by matching the feed line impedance at the antenna end of feed line. Many antennas have a matching network to couple the feed line to the antenna. A poor antenna & feed line is not improved with the tuner only power transfer is maximized - this works for receive and transmit - using impedance matching is always useful for maximum power transfer.

David started at age 8 building Using or teaching about electronic devices - that was 65 years ago. It started with a crystal radio then ham license at 14 yrs http://tinyurl.com/7ym7s7c , Navy electronics at 17ys , Field Engineer at 21yrs http://tinyurl.com/83mce63 , teaching 'Electronics for Scientist' at Virginia Tech at 29yrs , Director of 'Foundation for Amateur International Radio Service' (FAIRS) at 52 yrs and at 73 he is still busy with electronics. Collector of historical Microcomputers http://tinyurl.com/7hmuj3z & along the way David has small collection of tuners.
Video produced by the LCF Group, LCF Group consist of David Larsen KK4WW, Gaynell Larsen KK4WWW and Dee Wallace KG4VMI. ( We are on The Crooked Road Heritage Music Trail and the Round The Mountain Artisan and Craftsman Venue - great place to visit ) Floyd Virginia. We operate 'Chantilly Festival Farm' & 'Bugbook Historical Computer Museum' & are all radio amateurs & Directors of "The Foundation for Amateur International Radio Service" ( FAIRS) also located in Floyd Virginia. N4USA is the radio call for FAIRS and we have operated in Dominica as J79WW J79WWW J79VMI. We are members of " The Floyd Amateur Radio Society" FARS. The LCF Group ( 1-540-745-2322 ) The following have activities in Floyd County, Virginia http://www.virginiamountainland.Com http://www.lcfarticles.com http:/www.va-mountainland.com http://www.floydcountyvirginia.org http://www.fairs.orghttp://floydcount... ttp://www.floydfuture.com http://www.floydfuture.org http://www.lcfvideo.com, land for sale by owner Floyd County Virginia, Floyds future, http://www.sustainfloyd.org owner financing FSBO , http://floydfolks.net , http://floydfolks.org , bugbook series Blue Parkway http://www.stpierrewoodworking.com http://www.floydcountyvirginia.org Bill St Pierre http://floydcountyvirginia.com , http://www.floydcounty.info , http://www.bugbook.org http://www.bugbook.us http://www.bugbook.net http://www.bugbooks.info http://www.bugbooks.us , bugbook historical microcomputer museum ,Bugbook historical microcomputer museum http://www.bugbookseries.com http://www.bugbookcomputermuseum.com http://www.bugbook-computer-museum.com http://www.bugbook.org http://www.floydfolks.org http://www.microcomputerhistorymuseum... http://www.floydvisitorcenter.com http://www.floydvirginia.org , David Larsen Blacksburg Group, http://www.bugbook.us http://www.bugbook.net http://www.bugbooks.info http://www.bugbooks.us , bugbook historical microcomputer museum , Bugbooks , http://www.bugbookseries.com http://www.bugbook-computer-museum.com bugbooks ,http://floydcountyonline.org , http://floydcountyva.org , http://floydcountyvirginia.org