For those of you who are still flying 72Mhz, I just completed an interesting test on my Supra. THis may be old stuff to some of you. If it is useful, good -- if not, ignore it.
I started with a Supra with a carbon center panel and regular tips. To keep from dangling antenna wires I extended the antenna and ran it to the right wingtip (about 32 inches are in the wingtip) I am using a JR9303 transmitter with a JR790 receiver. I've been getting about 100 feet on antenna collapsed range checks. While the thing has been OK -- even at contests, I can't say that I am overly impressed with the 100 foot range check. Today I tested an antenna configuration which I first saw Randy McCleave use. It consists of 80 inches of nylon coated stiff steel leader attached 1 1/2 inches from the receiver. It runs through the fuselage and boom and up the rudder and out the top (about 16 inches dangles free from the top of the rudder -- about 30 inches total is outside and away from any carbon. I tested both configurations in a controlled setting. The plane was mounted on a non-conducting stand which held it about 30 inches above the grass. The transmitter was held at arm length and abut 30 inches high. I measured the range from the front, each side and the rear using each antenna configuration. The configuration with the antenna in the wing checked out to a range of about 100 feet. The configuration with the antenna out the top of the rudder checked out to a range of about 350 feet. Both systems used about the same overall lengths of antenna and the same overall lengths of antenna not shielded by carbon. All I can figure is that the difference was due to the proximity of the tip antenna in the glass wing tip to the carbon spar. Anyway, I guess I'll be flying with McCleave setup. -- dharban ------------------------------------------------------------------------ dharban's Profile: http://www.rcgroups.com/forums/member.php?u=31927 View this thread: http://www.rcgroups.com/forums/showthread.php?t=854251 RCSE-List facilities provided by Model Airplane News. Send "subscribe" and "unsubscribe" requests to [EMAIL PROTECTED] Please note that subscribe and unsubscribe messages must be sent in text only format with MIME turned off. Email sent from web based email such as Hotmail and AOL are generally NOT in text format
