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On Sun, 17 Aug 2003 00:02:39 -0400, Bob Brock
wrote: On Sun, 17 Aug 2003 03:39:14 GMT, erniegalts wrote: On Sun, 17 Aug 2003 03:03:05 GMT, "mad amoeba" wrote: Not difficult to get an amateur license these days now that the code requirement has been wiped. Anyone who knows a bit about radio should be able to study the regs and pass an exam allowing VHF operation on 2 metres, and the "general class" [ or "full call" ] exam is not that much harder. General Class license still requires a Morse Code test. Morse has not been "wiped." It has however, been lowered for the two higher class licenses from 13 and 20 wpm to 5 wpm for both licenses. Morse is not required for the Technician license which give full priviliges on VHF/UHF. So, once again ernie, you are wrong. http://www.arrl.org/pio/hamlic.html Sorry, Brock, it is you that are wrong, and for the second time in a matter of weeks. First time was when you accused me of being unable to calculate the resonant length of a 1/4 wave vertical. A quick advanced search on the net would have shown you that have mentioned this in several posts, see following excerpt from one of the early ones. ============================= From: "Wombat" Subject: Handheld Ham Radio Antenna(e) Questions Date: 1999/03/01 Message-ID: [snip] 1== Not familiar with these particular transceivers, the formula for any full-length quarter wave whip working against a ground plane is [in metric measurements] Length in meters = 75 divided by operating frequency The 2 metre band extends from 144 to 148 MHz. So if were cutting an antenna for center of this band at 146 MHz would be 75 / 146 = 0.513698630137. So a quarter-wave vertical would be roughly .513 metres long, or 513 mm. (millimeters) or 20.2244 inches. 75/ 440 = 170.455 mm or 6.71081inches. 2== I assume you will be getting an amateur license before operate on these frequencies, as governments tend to take a dim view of unlicensed operation, and amateurs will go to considerable lengths to catch unlicensed operators. 3== The above formula gives the theoretical lengths for a resonant 1/4 wave working against a ground plane. Some hand transceivers use the unit itself or the operators hand to act as a "ground plane" A "rubber ducky" antenna is often just a resonant 1/4 wave wound into a shorter coil, and does restrict range. ================================ Actually, have done a fair bit of experimentation with antennas. Corner reflectors, trough reflectors, yagis, arrays, non-resonant long wires, rhombics, etc. You second mistake was the belief that code was still a requirement, although the International Telecommunications Union end this almost a month ago. Were you involved in previous debates on need for current control on LEDs, the differences between an a electrochemical cell and a battery made up from same? Don't remember offhand, but you seem very anxious to catch me in a mistake. Why is this, Brock? erniegalts |
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