It may be a case of the transmitter 'swamping' the rec If the TX is too close, it can over excite the rec front end. I suspect that this may be exagerated with the 5cell battery. Can he try a 4 cell instead? Why the 5 cell? If he is trying to get weight, use 4 bigger cells, or carry some lead. I think that 5 cells may not provide additional flight timne over 4 cells.
I personally don't like the antenna on the leading edge. I would bring it out of the fuse near the reciever, and over the wing to the tip of the vert tail. Putting ot on the wing LE, would alter the shape of one LE and could upset airflow over this most critical area of the wing. And, attaching the antenna to a 'removable' part of the airplane, can cause distress if that part separates from the rest of the aircraft, as in a sudden arrival with the ground. Thi has been known to rip the antenna from the receiver or worse, stress and fatigue the antenna at the receiver case leading to sudden failure at a latter date. .........bc AG4YQ Williamsburg, VA On Mon, 8 Aug 2005, Douglas, Brent wrote: > Ok, I'm trying to help a friend diagnose and hopefully resolve a chatter > problem... It's a standard GL, and it gets big chatter, full throw up > and down, in different orientations. Only suspicious thing is that he > used metal pushrods instead of the 1/4 inch balsa setup standard to the > GL. > > We moved the antenna outside the fuse, on the leading edge of the wing. > No joy. Changed to a different transmitter, no joy. He's looking to > replace the receiver, but he made the comment that he was using a 5 cell > battery pack. Is there any way that 6V driving a 555 and a pair of > micro (HS81) servos could be a problem? > > I'm thinking it's probably a bad board / crystal or a loose solder > joint, but that battery pack is a wildcard to me - anyone? > > Thanks, > Brent > 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 > 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
