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#11
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I agree. Their stuff seems absurdly overpriced.
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#12
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The specs on the HAM baluns don't go into the AM BCB .Of course, that
doesn't mean they won't work, but how well they would work is the question. Incidentally, the Wellbrook ALA-100 works as low as 24Khz. There are two data signals out of Washington state, approx 24khz and 44khz, that I can pick up with about 40ft on the ALA100. I think the spec limit is 150Khz, so performance is probably less than optimal. Of course, there is nothing really there to receive beneath 150Khz, though there are signals to detect. David wrote: On 7 Feb 2006 19:17:39 -0800, wrote: It would help to know the exact model, but from what I could see from the website, this is similar to the Palomar end-feed baluns, though you can transmit on the Par Electronics version. The performance should be similar to a long wire, but more efficient since the transformer will improve the match. Since you are not transmitting, more wire will probably improve the low end reception, though most of those ham baluns don't work well in the AM BCB or lower. The Par web site says they are receive only. Why would a ''ham balun'' not work for Medium Wave? |
#13
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DX Ace - Their Attorneys will be contacting you again
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#14
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Junius,
1 - Question - Why Not a Windom Antenna instead of a . . . long, Long. LONG Wire ? Windom Antenna : Ensure that the Shorting Strap is between the Two Ground Terminals of the Par EF-SWL Antenna. [ Antenna Ground and Coax Cable Ground ] Lay-Out the 150 Foot of Antenna Wire as an Off-Center Fed Windom Antenna with a Short Arm of 47.7 Feet and a Long Arm of 70.9 Feet. [ The Top Tip-to-Tip would be 118.6 Feet ] The Vertical Up-Leg would be 31.4 Feet [ About 32 Feet above the ground. ] Short Arm of 47.7 Feet = 1/4 WL @ 60 Meter Band Long Arm of 70.9 Feet. = 1/4 WL @ 90 Meter Band Top Tip-to-Tip of 118.6 Feet. = 1/2 WL @ 75 Meter Band Vertical Up-Leg of 31.4 Feet = 1/4 WL @ 41 Meter Band TIP - Cut the Windom Antenna for your favorite Shortwave Radio Listening (SWL) Bands and to "Fit" the Size of your Property : Connect Off-Center 47.7 to 70.9 Feed-Point of the Windom Wire Antenna Element to the Par EF-SWL Antenna's Antenna Terminal. Your Coax Cable can then be Grounded at the Shack. -Or- Where the Coax Cable drops directly down from the Windom Antenna : Install a Ground Rod and place a SO-239-to-SO-239 pass-through Adapter on the Ground Rod as a Remote Grounding Point Connection for your Coax Cable Feed-in-Line. Large Size Windom Antenna {~ 100 Feet} 60 Meters = 75 Meters + 49 Meters & 31 Meters T2T = 97.7 Ft = 59.2 Ft + 38.5 Ft & 24.5 Ft High Medium Size Windom Antenna {~ 65 Feet} 41 Meters = 49 Meters + 31 Meters & 22 Meters T2T = 63.0 Ft = 38.5 Ft + 24.5 & 17.1 Ft High Small Size Windom Antenna {~ 50 Feet} 31 Meters = 41 Meters + 25 Meters & 19 Meters T2T = 51.5 Ft = 31.8 Ft + 19.7 Ft & 15.1 Ft High 2 - Question - Why Not a Loop Horizontal Antenna instead of a . . . long, Long. LONG Wire ? LOOP ANTENNA : Disconnect the the Shorting Strap between the two Terminals of the Par EF-SWL Antenna. Lay-Out the 150 Foot of Antenna Wire as a Horizontal Loop Antenna at about 20 to 25 Feet above the ground. Connect the Ends of the Loop Antenna Element to the Par EF-SWL Antenna's Antenna Terminal and Antenna Ground Terminal (30 Turn Side) Your Coax Cable can then be Grounded at the Shack. TIP - Cut the Loop for your favorite Shortwave Radio Listening (SWL) Band : + Extend the Loop to 165.4 Feet = 49 Meter Band - Trim the Loop to 136.7 Feet = 41 Metter Band hope this helps - iane ~ RHF |
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