On Tue, Sep 07, 2004 at 12:52:36PM -0700, Jeff & Constance Reagan wrote:
| Anbody out there remember the radios that JR made for Circus Hobbies, | circa 1985? Were the receivers that came with those radios narrow | band/dual conversion? I don't remember these (I wasn't even in the hobby at the time), but I believe that it was 1988 or so that they even started selling narrow band equipment. After 1992, all transmitters manufactured must be narrow band. Previous to 1988 I believe all (most?) radios were set up for 80 kHz channel seperations. I think it was only 1988 that they started making radios that could handle 40 kHz channel seperations -- which is still not narrow band. And in 1991 or so they started making narrow band equipment, and in 1998 narrow band equipment became legally mandatory. If it really was made in 1985, I *seriously* doubt it's narrow band. Of course, it's still legal to use it if you wish -- it's only transmitters that legally must be narrow band. I wouldn't trust it in a plane, but it ought to be ok for bench work (though it might be a bit dangerous for use with electric planes, even on the bench.) You could test it by tranmsitting on it's channel and an adjacent channel, but even that isn't a proper test, because a pager tower could be using the bandwidth between those two channels. Here's a reference for much of this -- http://groups.google.com/groups?selm=1992Sep14.210033.4399%40bmerh85.bnr.ca -- Doug McLaren, [EMAIL PROTECTED] Blessed are they that run around in circles, for they shall be known as wheels. 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.
