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Modified 1/8" Mono Plug for a 'portable' Radio's Ground Connection
JW,
Modified 1/8" Mono Plug for a 'portable' Radio's Ground Connection http://groups.yahoo.com/group/Shortw...a/message/9097 As you have discovered, most of the time a 'portable' AM / FM Shortwave Radio's Earphone Jack is also coupled to the Radio's RF internal circuitry and is also RF Signal Ground. Using a modified 1/8" Mono Plug can allow you to connect a Ground Wire to the Radio for improved Signal and lower Noise. MODIFIED - 1/8" Mono Plug for a 'portable' Radio's Ground Connection : 1. Remove the Tip Section of the 1/8" Mono Plug leaving just the Rear Barrel Section and Solder Terminal. 2. Solder a Wire (Ground Wire) to the Solder Terminal. 3. Connect the Wire to Ground or the Shack's Ground. 4. Plug the 1/8" Mono Plug into the Radio's Earphone Jack. Your Radio is now Grounded. TIP - This is also a good Travel Ground Connection to have in your Travel Radio's Travelling Bag. Modified 1/8" Mono Plug on one end of a 3'-5' piece of Wire and an Alligator Clip on the other end to clip-on to things. WHAT ABOUT AN ANTENNA ? * Collapse the Radio's Whip Antenna and connect an External Wire Antenna directly to the Whip Antenna for improved FM and Shortwave reception. Note -Some times this also works for AM/MW reception too. * Wrap a few turns of the Exteral Antenna Wire around the Radio to couple the RF Signal to the Radio's built-in AM/MW Ferrite Rod Antenna. TIP - You may wish to consider using a "PWA" Portable Wire Antenna (PWA) - by Tom Sevart PWA = http://www.geocities.com/n2uhc/portablewire.html READ - A Compilation of "Portable Wire Antenna" (PWA) Messages http://groups.yahoo.com/group/Shortw...a/message/5871 http://groups.yahoo.com/group/Shortw...a/message/5894 hope this helps - iane ~ RHF |
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