I am making the assumption that you have programmed the radio to use a clam-shell style control head and NOT an A7 display head. You were so close. All you needed to do is connect pins 19 & 4 to +12v. From the batlabs website: > If you need to program a Maratrac, and do not have a control head > available, all is not lost. What you do need is a control cable from a > Maratrac, Mitrek, Mocom 70, or Motrac.
> What you want to do is wire pin 17 and 13 to NEGATIVE, and pin 19 and 4 to > 12VDC. This can be used to power the radio up. Then you just use the > programming port in the radio to do the programming. > This power cable can also be used to power up the radio to use as a > transmitter without a control head. Again, you just use the programming > port to access the PTT and mic audio pins. Doing the above method does not allow for channel selection, but if you are simply using this as a repeater transmitter, It will get you by. Good luck, Scott Scott Zimmerman Amateur Radio Call N3XCC 612 Barnett Rd Boswell, PA 15531 ----- Original Message ----- From: "jimmylpowell" <[EMAIL PROTECTED]> To: <Repeater-Builder@yahoogroups.com> Sent: Wednesday, October 03, 2007 7:04 AM Subject: [Repeater-Builder] Maratrac without control head >I am trying to use a UHF Maratrac as a transmitter. I want to leave > off the control head. > I can not get it to transmit without the control head. I have jumpered > pins 17 & 13 and 19 & 4. I have checked the fuse on the logic board. I > have tried the Ptt pin on the 16 pin. > > Are the any other jumpers that may need to be added? Any other ideas? > > Jimmy, KS4KX > > > > > > > Yahoo! Groups Links > > > > > > -- > No virus found in this incoming message. > Checked by AVG Free Edition. > Version: 7.5.488 / Virus Database: 269.14.0/1046 - Release Date: 10/3/2007 > 10:08 AM > >