The new Fortress works after all. Sorry FMA ! ! As Steve suggested, I had the modulation shift wrong. I think my error was being new to the Stylus. I don't remember my JR allowing me to get the shift wrong... if I did the servos didn't work, and certainly not 5 work and one fail. When I saw 4 servos working fine (I hooked them up one at a time), I just assumed the shift was correct and it was the receiver's fault. I was too fast to the guns and I apologize. However, the one I returned was faulty. It did have sensitivity to pressure and movement which would have been risky. The new one is rock solid (even with the PPM wrong). Further, I tried both pitch shifts on the one I had yesterday because I could hardly believe I'd get a bad one. -Paul Steven Bixby wrote: > Just checking, Paul; could the Stylus' program you're using for that RX be > set for the 'wrong' pulse shift than the RX? > > Believe it or not, an RX can often reasonably respond to the wrong pulse > shift direction, but it's not a very good connection and it doesn't take > much for the pulse train to "derail". It kind of sounds like that's what's > happening in your case, perhaps? > > > -----Original Message----- > > From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED]]On > > Behalf Of Paul Klissner > > Sent: Tuesday, February 22, 2000 8:34 PM > > To: [EMAIL PROTECTED] > > Subject: [RCSE] Uh oh.. Bad News: Watch Out For New FMA Fortresses! > > > > > > Something is seriously defective with the last two FMA Fortresses I've > > picked up. > > > > I got one yesterday, and out of the box channels 5 and 6 (flaps/Stylus) > > were very jittery with lots of noise. So I returned and the kid > > behind the > > counter said they'd just have to send it back to FMA on my time > > and dime!!!! > > One day old, receipts, never been flown!! > > > > Fortunately I knew the manager from many purchases, and he just > > exchanged it for a brand new one out of the box. Slit the plastic, took > > it out the new one and handed it to me. > > > > I took it home, and hooked up my set of brand new Hi-tech servos in > > various combinations, careful of polarity. And wouldn't you know it, > > the receiver was botched! Channel 1-5 work fine, 6 and 7 jjust don't > > respond and the servos have a low hum-like vibration and don't move, > > and get hot on those channels! > > > > Doesn't matter which servo I try.... they work on 1-5 and don't on 6-7. > > I think hooked up long enough this receiver would fry the servos. Unlike > > the other one, this receiver isn't sensitive to small amounts of finger > > pressure though. The QA on these receivers must not be too good! > > > > Two brand new botched receivers in a row is too much for me. Further it > > will cause me a lot of driving and embarrassment as I lay my credibility > > on the line for FMA. I have a feeling they're going to give me > > a hard time > > at the hobby shop and not going to believe me. I'll let you know how the > > hobby shop and FMA treats me over this. > > > > I'm using new servos, freshly charged 4.8 V pack, new receiver, new > > XTAL, and all polarities correct from the beginning, not even in a glider. > > This is in preparation for a Bird of Prey. > > > > I'm going to be very skeptical henceforth with new FMA receivers, even > > though I still have one and am using one I bought two years ago. > > > > Its not worth the hassle, I'm very sorry to say. > > > > -Paul > > > > 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]
