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John Ferrell wrote:
I didn't mention the issue of antenna tuners it but I was thinking of including the Yaesu FC-30 tuner in the HF set but I wanted to get some advice first. I was considering that tuner because it can be directly controlled by the transceiver and even bolted right to it. If that's a bad idea I have not bought one yet. I take it you are not a fan of the diesel fuel and ammonium nitrate fertilizer solution to stumps. {;) Stumps.... I try to resist the urge to experiment in that direction. I continue to look for a mentor that has gray hair, and a complete inventory of eyes & limbs. I sure miss the days when every hardware store carried Calcium Carbide. Can you recommend any fuses or detonators? A common 1/4 stick fire cracker as the detonator and model rocket engine nichrome wire igniters wired to energize from a safe distance away. You have to pack the mixture pretty tight with the fire cracker in the middle. Wrap the nichrome igniter wire around the firecracker's fuse, run your wire out a safe distance, connect wires to battery terminal and key operated switch / covered push button combination, make the needed safety announcement, when all check points report all clear insert and operate the keyed switch, begin countdown, press button. -- Tom Horne "This alternating current stuff is just a fad. It is much too dangerous for general use." Thomas Alva Edison tuners I like built in tuners but I like having the tuner at the antenna even better. In days past a big mismatch was just an inconvenience. Today RF at the operating position means the only equipment that does work is the radio. I use only two HF antennas at this time. The 28 foot vertical with the SGC-237 which works fine 10-160m with no Shack RF and A Cushcraft A3S 40-10 beam with the tuner in the TenTec Jupiter. Both meet my expectations. A vertical MAY NOT meet your mission profile for short range communications. A low dipole (High enough not to present a safety hazard) may be more useful. As an earlier poster pointed out, it would be best to select a length that is NOT a half wave on a desired operating frequency. Once again, a clever technician can beat any tuner but I find it difficult to be clever when it is dark, cold, wet and hungry. John Ferrell W8CCW "Life is easier if you learn to plow around the stumps" |
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