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MICHAEL,
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#2
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![]() "RHF" wrote in message ups.com... MICHAEL, . First make sure that you have both of your Icom IC-R75's Pre-Amplifiers turned OFF. I did and I tried the att also. Even with the att switched on, the local AM stations still overload the radio. It is just too much wire for my location. North NJ is the king of the MW transmitters. Lots of ground water and excellent conductivity. I just cant use that much wire. Michael TRY A LOOP ANTENNA : Re-run the Wire as a Loop-On-the-Ground (LOG) Antenna. Try to have the Out-Leg of the Loop separated as much as possible from the Back-Leg of the Loop. Use the Two HI-Z Terminals of your Icom IC-R75 for the input for this Loop Antenna. . USE AN "EXTERNAL" ATTENUATOR : Build the GIZMO Box and use the built-in Attenuator to reduce the Signal Levels. READ - Portable AM/FM Shortwave Radio-to-Antenna "GIZMOE" Connector Box http://groups.yahoo.com/group/Shortw...a/message/2070 NOTE - If you use the NE-2 Lite-Bulb and on a 'normal day' the Bulb is always Glowing or Blinking; then Trim your Antenna by 25 Feet and check it again - repeat as needed. . USE A MATCHING TRANSFORMER AND GROUND : Continue to use your 200+ Feet Long Wire Antenna and Build a Voltage Step-Down Transformer : Use a Ferrite Core with a 25:1 or 36:1 Turns Ratio. * 25:1 Ratio = Thirty-Five (35) Turns and Seven (7) Turns * 36:1 Ratio = Thirty-Six (36) Turns and Six (6) Turns Use a Ground Rod and Wire with this Matching Transformer. . CUT THE SIZE OF THE ANTENNA DOWN BY . . . . . . . . . * Cut the Size of the Antenna from 300 Feet to 250 Feet and use 50 Feet of Coax Cable as a Feed-in-Line. * Cut the Size of the Antenna from 300 Feet to 200 Feet and use 100 Feet of Coax Cable as a Feed-in-Line. Plus use a Matching Transformer and a Ground Rod at the junction of the Antenna Wire Element and the Coax Cable. . TIP - In the Future - Pick a Dry and Warm Sunny Day 'to do' your Out-Side Antenna Work ![]() . . iane ~ RHF . All are WELCOME and "Invited to Join" the Shortwave Listener (SWL) Antenna eGroup on YAHOO ! http://groups.yahoo.com/group/Shortwave-SWL-Antenna/ . Some Say: On A Clear Day You Can See Forever. http://groups.yahoo.com/group/Shortw...na/message/502 . I BELIEVE: On A Clear Night . . . You Can Hear Forever and Beyond, The BEYOND ! With a Shortwave Listener SWL Antenna of your own making. "If You Build It {SWL Antenna} You Will Hear Them !" . . |
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