Hi James, The 50 MHz band is the newest HAM band for RC flying and offers some more protection from HAMs. 53 MHz is a ham band and could cause some problems if conditions are right. I have flown on 53 MHz for years with no problems. In theory the antennas are different lengths but the ant. on your 72 MHz trans. will work just fine. I would make your receiver ant. a bit longer. This will help get the most signal to it.You said that you know the theory so I won't bore you with formulas I don't like rubber duck antennas as they are a compromise. You can't beat a full size antenna for best transmission or reception. If the rubber duck ant. is bent over as some I have seen where is the max signal strength direction or major lobe? We have good receivers and do not fly at max. distance for the weakest signal strength so we don't have much trouble with weak signals. If a rubber duck ant. pleases you then go and use it. Enuff of this. I still like a full size antenna. The reason the police and firemen and others use rubber duck antennas is that they can't have a full size ant. sticking out of their pockets or walkie talkie holders. They have several receivers around to pick up their signals so weak signals are not usually a problem. You have one transmitter and one receiver in your system so I would use the best for you or me. Thermals, Art KG6J
James R MacLean wrote: > I have recently passed my exam for amateur operation and wish to convert > my Futaba 8UAF Tx to 6 meter operation and convert / purchase some > receivers to match. I earnestly solicit any experience / advice to help!! > The two bands of normal use are channels 00 to 09 around 50.9 MHz and > 53.1 to 53.8 MHz. Is there any reason to choose one band over the other > and are there any frequencies to avoid? > Where are sources for the appropriate TX modules? Any on the List > who have an appropriate module to sell? > FMA and Futaba make receivers. Anyone else? > I talked to Bill at Smiley Antenna - they make the duckie antenna I > have used for years with good success. I wish to use one for 6 meters > also. He said that the SAME duckie will work fine on both 72 MHz and 6 > Meters. The TX module output loading / matching network will take care of > the tuning which makes some sense since both bands use the same length > whip antenna. If correct, this is ideal for my uses. Has anyone real > experience with this setup? (Please don't respond if you haven't tried it > with a real sailplane. I know much of the theory). > Any other wisdom about questions I didn't know to ask? Many thanks > for any and all replies! Jim MacLean > ________________________________________________________________ > GET INTERNET ACCESS FROM JUNO! > Juno offers FREE or PREMIUM Internet access for less! > Join Juno today! For your FREE software, visit: > http://dl.www.juno.com/get/web/. > RCSE-List facilities provided by Model Airplane News. Send "subscribe" and >"unsubscribe" requests to [EMAIL PROTECTED] RCSE-List facilities provided by Model Airplane News. Send "subscribe" and "unsubscribe" requests to [EMAIL PROTECTED]
