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On Jan 1, 9:16*am, wrote:
I must be doing something right because we had another power outage last night, or early this morning from 1:00AM until 3:00AM. I had restrung a 50' random wire antenna from the WR LWA-0130 Long Wire Antenna Adapter mounted under the eves to a fiber glass pole tied to a fence post. I compared three antennas, a Lankford "Simplified Complimentary Antenna', the same antenna with a built in Lankford "Norton RF amp" and the LWZ-0130. After a few tests I dropped the active with the built in Norton RF amp. Simply put, there is still too much background noise to make the amp useful. I A/B tested the other 2 from CB, 27.035 had a nice distance conversation, down to 100KHz Loran *C. As expected the Lankford "Simplified Complimentary Antenna' was the winner. At every frequency the signals were cleaner on the Lankford antenna, though in many cases the difference was just noticeable. At 3:03AM when the AC came back on, the LWA-0130 and 50' random wire antenna became nearly useless. The QRM jumped up to at least S3 up to 15MHz on the LWA-0130. The noise increased on the Lankford active antenna rose as well, but never reached S1. As I thought, if one lives in a remote RFquite area the typical random wire antenna is clearly a worthwhile antenna. In built up and noisy areas it's utility decrease. I admit that I need to mount the LWA-0130 at least 50' from our home, but that isn't practical right now. Terry Terry, All Those Dallas Lankford Designed Active Antennas . . . Need a Guide to What-is-What. A = Lankford "Simplified Complimentary Antenna" (SCA) B = Lankford SCA with a built in Lankford "Norton RF Amp" 1 - Lankford redesigned PA0RDT micro-whip with a base mounted Lankford amplifier ? ? ? 2 - Dallas Lankford "Simplified Complimentary Antenna" (SCA) Push-Pull Output Active Whip Antenna -by- Dallas Lankford - 12 DEC 2007 DL-SCA [TINY-URL*] - http://tinyurl.com/34qbf2 * For this very long Link/URL : http://www.kongsfjord.no/dl/Antennas...ennas%20II.pdf 3 - Lankford Micro Active Antenna ? ? ? 4 - Dallas Lankford's Simpler Active Dipoles {Antennas} http://www.kongsfjord.no/ -&- http://www.kongsfjord.no/dl/ Low Noise Active Antennas AC/DC Power Supplies (PS) -by- Dallas Lankford - 17 FEB 2007 DL-PS [TINY-URL*] - http://tinyurl.com/2va2a6 * For this very long Link/URL : http://www.kongsfjord.no/dl/Antennas...plies%20II.pdf -Note- Page # 3 Has a "Info" on more new Active Whip & Dipole Antennas 5 - Stock PAORDT Mini-Antenna http://www.kongsfjord.no/dl/Antennas...20Antennas.pdf 6 - Dallas Lankford - LW-MW-SW "Relay Tuned" Fifteen Foot (15') Noise Reducing Vertical Antenna DL-15V [TINY-URL*] - http://tinyurl.com/2ncu3n * For this very long Link/URL : http://www.kongsfjord.no/dl/Antennas...%20Antenna.pdf This Lankford 15' Relay Switched Antenna. It is elevated* with a set of 16 15' elevated radials. * Mounted about 3' (1M) above the ground. CopyRight © Dallas Lankford - All Rights Reserved. |
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