<div>I apologize! I did not mean to imply that all single conversion receivers are cheesy! </div> <div> </div> <div>Bob R.</div> <div><BR><BR><B><I>Ed Alt <ed_alt@hotmail.com></I></B> wrote:</div> <BLOCKQUOTE class=replbq style="PADDING-LEFT: 5px; MARGIN-LEFT: 5px; BORDER-LEFT: #1010ff 2px solid"><BR>Yep, I've been flying JR single conversion ABC&W sine the late 90's in quite <BR>a number of different locations around the country and have never, not once <BR>had the slightest indication of a problem. Lot's of time with ignition <BR>systems too. Must be some other cheesy single conversion receiver?<BR><BR>Ed<BR><BR>>From: DaveL322@comcast.net<BR>>Reply-To: NSRCA Mailing List <NSRCA-DISCUSSION@LISTS.NSRCA.ORG><BR>>To: NSRCA Mailing List <NSRCA-DISCUSSION@LISTS.NSRCA.ORG><BR>>Subject: Re: [NSRCA-discussion] RX choices<BR>>Date: Thu, 14 Sep 2006 19:08:30 +0000<BR>><BR>>"I've had too many glitches with the cheesy single conversion
sets."<BR>><BR>>HUGE word there is "cheesy". Good single conversion RXs are the only thing <BR>>I've flown in pattern and sport planes for the last 15 years and I've <BR>>enjoyed the benefits of a RX with fewer parts and lighter weight.<BR>><BR>>I fly foamies in some pretty noisy environments and have found the single <BR>>conversion JR610 and Berg4 to be solid where others aren't.<BR>><BR>>Regards,<BR>><BR>>Dave Lockhart<BR>>Team JR<BR>>Team Castle<BR>>DaveL322@comcast.net<BR>><BR>><BR>><BR>><BR>>-------------- Original message --------------<BR>>From: Bob Richards <BOB@TOPRUDDER.COM><BR>><BR>>Most of what I use PPM receivers for are sport models or small electrics. <BR>>Even then, I have decided to stay away from the single conversion RXs, even <BR>>on the ultralight foamies. I've had too many glitches with the cheesy <BR>>single conversion sets.<BR>><BR>>Having said that, there are
advantages to some of the PPM receivers. With <BR>>proper filtering, it is possible for a PPM RX to continue operating with <BR>>certain interference that would render PCM inoperable. Not very likely, but <BR>>possible. I do know of one case where PCM radios were having problems going <BR>>into failsafe, but people flying PPM were not having problems. At one time <BR>>(years ago) I was told that PCM did not work well on planes with ignition <BR>>engines. I never disputed it, though I never have seen proof of it.<BR>><BR>>With PCM, you may not know that interference is present until it goes into <BR>>failsafe, then it may be too late. With PPM, you may get glitches, but <BR>>usually at least some control gets through.<BR>><BR>>I use the PCM RXs in my high-dollar planes, and have my failsafe set to <BR>>kill the engine. For most planes, I leave all the other controls at the <BR>>last good signal position.<BR>><BR>>Bob
R.<BR>><BR>><BR>>Wayne <WHINKLE1024@MSN.COM>wrote:<BR>>I have a question guys.<BR>><BR>>I see in lots of posts guys using FM (PPM) RX's. Why is this?<BR>><BR>>In today's market there are so many choices of good PCM RX's I can't<BR>>understand why someone would actually choose to run FM. Back in the days<BR>>when I started RC there was no PCM and we had the choice of AM or FM. I was<BR>>taught that my model was too important to me not to run the best link<BR>>possible, at the time FM was it.<BR>><BR>>When PCM came in the price was much higher and I can see a reason to not <BR>>use<BR>>it. Today however both Futaba and JR have PCM RX's that are good for under<BR>>$99, JR now even has one that PLL Synth. So why use FM?<BR>><BR>>It is my understanding with today's PCM that noise rejection is so much<BR>>better with PCM that it seems along with its F/S properties both model and<BR>>people are better protected. I can
see the reasoning among average modeler<BR>>its price why else do MPI, FMA and so on make such a profit on off brand<BR>>leads and servos that are in my opinion very sub par. I felt that in the<BR>>pattern community with available models shrinking, and the cost of models<BR>>hitting larger prices that guys would trust their baby to better equipment.<BR>>I mean a basic pattern model that is on the cheap is going to be $1000 to<BR>>$1500 all up. The difference in a 127 Futaba RX and say a Futaba 138DP PCM<BR>>or JR 790 PCM version is about $40<BR>><BR>>What am I missing?<BR>><BR>>Wayne<BR>><BR>>_______________________________________________<BR>>NSRCA-discussion mailing list<BR>>NSRCA-discussion@lists.nsrca.org<BR>>http://lists.nsrca.org/mailman/listinfo/nsrca-discussion<BR><BR><BR><BR>>From: Bob Richards <BOB@TOPRUDDER.COM><BR>>To: NSRCA Mailing List <NSRCA-DISCUSSION@LISTS.NSRCA.ORG><BR>>Subject: Re:
[NSRCA-discussion] RX choices<BR>>Date: Thu, 14 Sep 2006 18:47:21 +0000<BR>>_______________________________________________<BR>>NSRCA-discussion mailing list<BR>>NSRCA-discussion@lists.nsrca.org<BR>>http://lists.nsrca.org/mailman/listinfo/nsrca-discussion<BR><BR><BR><BR><BR><BR><BR>>_______________________________________________<BR>>NSRCA-discussion mailing list<BR>>NSRCA-discussion@lists.nsrca.org<BR>>http://lists.nsrca.org/mailman/listinfo/nsrca-discussion<BR><BR><BR>_______________________________________________<BR>NSRCA-discussion mailing list<BR>NSRCA-discussion@lists.nsrca.org<BR>http://lists.nsrca.org/mailman/listinfo/nsrca-discussion<BR></BLOCKQUOTE><BR>