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On Dec 12, 12:45*pm, (Mark Zenier) wrote:
In article , SC Dxing wrote: After a week of owning the Grundig G6, so far the best antenna arrangement for me is simply running a speaker wire along the ground about 70 feet in my backyard. The Slinky antenna didn't work out well, running a wire on the top of my house gave me more inference (plus overloading), and the whip antenna isn't good on weaker signals. I've heard that a CB antenna does well on the higher freqs on SW (15mhz and above), if I can get one cheap, I'll try to hook that up on my roof. My question is, what do you use for an antenna to listen to shortwave? It depends on what sort of antenna the radio is designed for. My Grundig FR-200 (the $40-$50 crank powered) shortwave is designed for high impedance with the short whip. *You can tell if the signal gets weaker if you touch the antenna. *No external antenna input. You can really boost performance (when running on batteries) with a couple of 10-15 feet lengths of wire with alligator clips. *Clip one onto the antenna, and clip the other onto the radio's circuit ground. That's the negative side of the battery string, or the outside of the headphone jack, or the negative side of the dc-power jack. *Run them in a straight line with the radio in the middle, broadside to the direction to the station. *(Not for the AM band, that uses the internal loopstick, for most portables). Buzzword: counterpoise. * Using headphones may have a similar effect, as the headphone cable and your bod take the place of the wire. *Likewise, running on the AC adapter, but that may add more noise. Mark Zenier * Googleproofaddress(account:mzenier provider:eskimo domain:com) Two Simple 'portable' AM/FM Shortwave Radio Reception Tricks Aluminum Foil Counterpoise : Note - First Fully Extend the Radio's Whip Antenna Yeah sometimes taking a piece of Aluminum Foil 12" by 18"~24" and simply placing the Foil under the Radio will improve the 'reception' -tip- Some people will use a Metal Cookie Sheet instead of the Aluminum Foil "Grounding" The Radio : Note - First Fully Extend the Radio's Whip Antenna Sometimes connecting a Ground Wire to the Radio will reduce the noise pick-up and improve the signal. Try touching a Ground Wire to the Outer Ring of the Headphone Jack and any Body Screws. Try Both In-Combination Note - First Fully Extend the Radio's Whip Antenna Place the Aluminum Foil under the Radio Attach a Ground Wire to the Foil Remember that these Tricks usually work best with the Radio running on Batteries Only; and with the Radio's Whip Antenna fully extended. what works works - iane ~ RHF {pomkia} |
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