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#21
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In article ,
Nothing40 wrote: Hey Gang.. I have recently become interested in the 1750 meter band (160-180 khz).I have been searching the net for information,circuits,reports,anything I can find! I plan on homebrewing a TX/RX pair,once I do a little more research. I have found a few Schematics,and plans for a couple different transmitters,and antenna's,but no plans for recievers. Can anyone help me out? I'd prefer to go the homebrew route,mostly for experience,and for a learning experience. [snip] A transceiver for this "band" was in the SEP 94 issue of 73. I'd always wanted to put together a regen for this band. Regenerative detectors are at their best when they are rather tightly coupled to antennas that are electrically short. One reality of 1750 meters is that any antenna one man can lift is bound to be "electrically short". -- R F Wieland Newark, DE 19711-5323 USA 39.68N 75.74W Icom R75 Heathkit GR-81 Inverted-L in the attic Reply to wieland at me dot udel dot edu |
#22
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In article ,
Nothing40 wrote: Hey Gang.. I have recently become interested in the 1750 meter band (160-180 khz).I have been searching the net for information,circuits,reports,anything I can find! I plan on homebrewing a TX/RX pair,once I do a little more research. I have found a few Schematics,and plans for a couple different transmitters,and antenna's,but no plans for recievers. Can anyone help me out? I'd prefer to go the homebrew route,mostly for experience,and for a learning experience. [snip] A transceiver for this "band" was in the SEP 94 issue of 73. I'd always wanted to put together a regen for this band. Regenerative detectors are at their best when they are rather tightly coupled to antennas that are electrically short. One reality of 1750 meters is that any antenna one man can lift is bound to be "electrically short". -- R F Wieland Newark, DE 19711-5323 USA 39.68N 75.74W Icom R75 Heathkit GR-81 Inverted-L in the attic Reply to wieland at me dot udel dot edu |
#23
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Regenerative detectors are at their best when they are rather
tightly coupled to antennas that are electrically short. ============================= What gave you that idea? --- Reg |
#24
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Regenerative detectors are at their best when they are rather
tightly coupled to antennas that are electrically short. ============================= What gave you that idea? --- Reg |
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