[Repeater-Builder] ap4800 by John Bell
I have a repeater controller Model AP4800 Repeater Controller by John Bell seems to be a 1994 or 1995 vintage. I have part of the manual but several pages are missing and I have searched all over the internet and have been unsucessful of finding a copy of the manual. I also searched previous messages here and can find no posts concerning ap4800. Would anyone have a copy or know where I can get a copy of the manual for this controller. Thank you. Yahoo! Groups Links * To visit your group on the web, go to: http://groups.yahoo.com/group/Repeater-Builder/ * To unsubscribe from this group, send an email to: [EMAIL PROTECTED] * Your use of Yahoo! Groups is subject to: http://docs.yahoo.com/info/terms/
[Repeater-Builder] Re: ap4800 by John Bell
THANK YOU so much for having that on your website!!! I want to also thank Ray Rosler VE5RAE for emailing me the manual. This is a great resource! --- In Repeater-Builder@yahoogroups.com, Scott Zimmerman [EMAIL PROTECTED] wrote: Bruce, Check out the recent addition to the Repeater-Builder site: http://www.repeater-builder.com/rbtip/othermanufacturers-index.html Enjoy! Scott M. Scott Zimmerman Zimmerman Electronics Amateur Radio Call N3XCC 612 Barnett Road Boswell, PA 15531 - Original Message - From: Bruce Morgan [EMAIL PROTECTED] To: Repeater-Builder@yahoogroups.com Sent: Saturday, November 13, 2004 11:28 AM Subject: [Repeater-Builder] ap4800 by John Bell I have a repeater controller Model AP4800 Repeater Controller by John Bell seems to be a 1994 or 1995 vintage. I have part of the manual but several pages are missing and I have searched all over the internet and have been unsucessful of finding a copy of the manual. I also searched previous messages here and can find no posts concerning ap4800. Would anyone have a copy or know where I can get a copy of the manual for this controller. Thank you. Yahoo! Groups Links Yahoo! Groups Links * To visit your group on the web, go to: http://groups.yahoo.com/group/Repeater-Builder/ * To unsubscribe from this group, send an email to: [EMAIL PROTECTED] * Your use of Yahoo! Groups is subject to: http://docs.yahoo.com/info/terms/
[Repeater-Builder] COS Logic Circuit
I have a question about logic circuits. I have a Yaesu FT 1500 that has the data port on the back and I want to use the 1500 as a temporary receiver in my repeater while the acutal receiver is out for repairs. Here is my problem, the data output port has a COS pin out (Carrier=5 volts, none = 0 volts) My contoller port says, Receive COS (pull this input low when receiving). So I need to turn my positive logic signal to a negative logic signal. I found this circuit to do the the opposite of what I need ( http://www.repeater-builder.com/pix/cosswitch.gif ) Can I and if so how can I modify this to produce the positive logic with no signal and negative logic when a carrier is present. Or is my line of thinking completely out of line?Thank you. Your use of Yahoo! Groups is subject to the Yahoo! Terms of Service.
