RE: [RCSE] Antenna configuration
I have to ask, what receivers are you guys using? I'm used my hitec supreme in my hades ( which has a carbon boom) for about 2 years and it works great. I can walk far enough away and still have control so that I can barely see the model at all. It however has a boom longer then a 1.5 meter palne as it has a 110 inch wing.. Rhett -Original Message- From: Arne Ansper To: Art Mcnamee Cc: Rick Van Clief; [EMAIL PROTECTED] Sent: 8/9/2003 8:12 PM Subject: Re: [RCSE] Antenna configuration Carbon booms may be single strands or if they are wraped with another piece of carbon cloth that ties the strands together then your antenna is inside a tube. This will screw up reception. An ohm meter can tell if you have single strands or if they are connected together.Don't put your antenna in a tube. This seems to be typical unidirectional carbon where there are many strong strands in one direction and weak strands spaced 2cm from each other in order to keep the strong strands in place. So I think they are connected with each other. When testing place your plane pointing away from you or directly at you. Walk about 150 feet away and with your antenna collapsed and pointed at your plane try the controls.If things are OK then go fly. If not change the location of your antenna. It could even be in the wing.The end of the antenna is the weakest signal. That's why pointing the plane at you or away from you is the most severe test. Hmm, my tests indicated that the worst position was when the angle between TX and RX antennas was 45 degrees. 90 degrees was also bad. And the best position was, when the RX antenna was directly pointing to TX or away from it. I used helper and fully expanded antenna in my tests. Arne 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. 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.
Re: [RCSE] Antenna configuration
I'm working up a minimalist pod and boom 2M and in order to further reduce the size of the pod thought I would put the receiver in the wing as the wing is rather large and there is plenty of room for the receiver in there. It's a 3-piece wing, though, and the center panel is only 20 so I was wondering if it's ok to run the antenna toward one tip then back an inch or so and then toward the other tip, repeating the process until the antenna length is used up. I do not know for sure, but I suspect that this is a bad idea. I recently did some experiments with antenna shape. I have DLG with carbon boom. I was little bit afraid that carbon tube might reduce the range and decided to put the antenna into wing. Antenna was coming out from the wing saddle and was then going to the wingtip, hidden in the slot in front of aileron. Since the wing was short about half of the antenna was in the fuselage, so the antenna was shaped like L. What happened is that I lost radio control and crashed the plane. I started to do range checks and found that the shape of the antenna affected the reception dramatically. Straight antenna was best. L shaped antenna had only half of the range. I did not test this configuration you are planning. Finally I did tests with antenna running inside tailboom and the with antenna running outside. There was no difference in range, so I put the antenna into tailboom. But best way to find out is to make a test. Lay your antenna down as you planned, connect receiver and servo, ask somebody to help you and measure the range. Compare with the range with straight antenna. Arne 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.
Re: [RCSE] Antenna configuration
My latest plane has the receiver in the wing. I experimented with several antenna orientations and found one that works well for me. I ran the wire in an S pattern - passing through the leading edge of one rib then through the trailing edge of the next, etc, terminating at the wingtip. Obviously I did this before covering. Other orientations I tried didn't pass range checks. -- Captain Ed - Aging Busdriver -wish I could just leave well enough alone- Eddie --- Posted from the RCGroups.com Discussion Forums. Visit us at http://www.rcgroups.com --- Win free R/C Gear! View this thread at rcgroups.com: http://www.rcgroups.com/forums/showthread.php?threadid=140437 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.
Re: [RCSE] Antenna configuration
Hi Rick, If you run the ant. out the wingTE for example and loop the last 10 inches around to the LE the ant. will work OK you cannot coil up the antenna. Regards, Art Rick Van Clief wrote: OK, this brings me back to my original thought and question. Assuming an antenna length of about 39 and half a 1.5 meter span, or roughly 29 inches, how do you put the antenna in the wing? Eventually you run out of wing and have about 10 of antenna left. RVC If not change the location of your antenna. It could even be in the wing.The end of the antenna is the weakest signal. That's why pointing the plane at you or away from you is the most severe test. 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. 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.
