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SWR meter
Is there a simple way to convert a Radio Shack SWR meter (27MHZ) to
aircraft radio range (120MHZ)? Anybody done that? -------------------------------------------- Paul Lee, SQ2000 canard: www.abri.com/sq2000 |
#2
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"Paul Lee" wrote in message om... Is there a simple way to convert a Radio Shack SWR meter (27MHZ) to aircraft radio range (120MHZ)? Anybody done that? This question comes up about every 6 months. The swr may or may not be reasonably accurate in the vhf frequency range, the way to tell is to compare it against a known good meter with a transmitter and a good dummy load and also with a typical antenna. If that CB meter has a power range, ignore it; it will read high. The best solution is to watch eBay and buy yourself an old Bird model 43 Wattmeter. You will also need to find a 25C slug which will do you for up to 25 Watt transmitters in that frequency range. You will have a fine piece of equipment that will last you the rest of your life. Vaughn |
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Paul
In a Ham Radio shop , possibly Radio Shack, you can get a swr meter for the 144meg vhf band which is quite useable on the aircraft band. Ken Reynolds |
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And possibly an even better deal than a Bird model 43 is a Telewave
Wattmeter. Telewaves do not have frequency selective slugs. They work from 2 MHz up to 500 MHz or more. All you need to do it hook it up inline, turn a switch to read forward and reflected power and select the power range. The nice thing with the telewave is they have a 5 Watt range which is great for reading power from a handheld radio. Scott Vaughn wrote: "Paul Lee" wrote in message om... Is there a simple way to convert a Radio Shack SWR meter (27MHZ) to aircraft radio range (120MHZ)? Anybody done that? This question comes up about every 6 months. The swr may or may not be reasonably accurate in the vhf frequency range, the way to tell is to compare it against a known good meter with a transmitter and a good dummy load and also with a typical antenna. If that CB meter has a power range, ignore it; it will read high. The best solution is to watch eBay and buy yourself an old Bird model 43 Wattmeter. You will also need to find a 25C slug which will do you for up to 25 Watt transmitters in that frequency range. You will have a fine piece of equipment that will last you the rest of your life. Vaughn |
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