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On Thu, 19 Aug 2004 18:57:47 -0400, "Richard Mosier"
wrote: 1. Is there any real difference in reception quality if a string a longwire through my attic compared to running it from the chimney to a tree? Some. Depends on frequency and length (comparable to wavelength). This is not as important as it is in getting away from the house as a source of noise. If you encounter no noise with an attic antenna, then you are doing well. 2. If placed in my attic, do I need to 'slope' it downward through the rafters? No. 3. My current active antenna is a MFJ 1020B. Is it possible to convert this into a antenna tuner by removing the vertical antenna currently attached to it and running the longwire antenna lead into the 1020B, then running a coaxial connection from the 1020B to the back of the receiver? Hi Richard, The manual is vague here. You can try it, certainly, but the preselector may be overwhelmed by out of band AM signals (recognized by a strange "deafness" to signals you should get), or it may oscillate (the manual warns of this). If either occur, time to think of obtaining or building a simple tuner. 73's Richard Clark, KB7QHC |
#2
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![]() The manual is vague here. You can try it, certainly, but the preselector may be overwhelmed by out of band AM signals (recognized by a strange "deafness" to signals you should get), or it may oscillate (the manual warns of this). If either occur, time to think of obtaining or building a simple tuner. I have this problem in the VHF band, due to a local broadcaster on 104.1 I use a stub filter, but in your case, at low frequencies, a series resonant circuit would cut that down nicely. |
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