Aerotron-Repco Information Index

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Information and Modifications
Compiled and HTML'd by Mike Morris WA6ILQ
Web page maintained by Robert Meister WA1MIK
I know nothing about this equipment so please don't ask!

DONATIONS OF MANUAL PDFs WOULD BE GREATLY APPRECIATED.

Aerotron-Repco has been out of business for over 10 years. The company is no more. All of their documents and drawings have been relegated to the landfill. The equipment and parts were sold off long ago. Any support information would have to be obtained from the web.

The equipment was very well designed and built; too bad their marketing left a LOT to be desired.

Information and Modifications

MPAC UHF Base Station Receiver, part 1 of 4 Donated by Don Ritchie K8ZGW 2.9 MB PDF file.

MPAC UHF Base Station Receiver, part 2 of 4 Donated by Don Ritchie K8ZGW 2.7 MB PDF file.

MPAC UHF Base Station Receiver, part 3 of 4 Donated by Don Ritchie K8ZGW 7.1 MB PDF file.

MPAC UHF Base Station Receiver, part 4 of 4 Donated by Don Ritchie K8ZGW 1.6 MB PDF file.

MPAC UHF Base Station Transmitter, part 1 of 3 Donated by Don Ritchie K8ZGW 3.7 MB PDF file.

MPAC UHF Base Station Transmitter, part 2 of 3 Donated by Don Ritchie K8ZGW 5.2 MB PDF file.

MPAC UHF Base Station Transmitter, part 3 of 3 Donated by Don Ritchie K8ZGW 6.1 MB PDF file.

MPAC Test Set This manual covers both the portable and rack mount versions. This design is rather interesting - it has an oscillator in the IF frequency for tuning and netting crystal-based radios. 1.45 MB PDF file.

Rodger Williamson N4NRW has a complete manual for MPAC VHF rack mount. It includes schematics, parts list, service information, X-ray PCB views, etc. He is willing to provide copies of limited sections of the manual for those in need. Contact him directly at: his-callsign [ at ] arrl [ dot ] net.

1045 Power Supply 708 kB PDF Manual courtesy of Jerry Matthews WAØUZI, scan courtesy of Tim Peters K6TVP

1259 Tone Control Panel 13.2 MB PDF Manual courtesy of Jerry Matthews WAØUZI, scan courtesy of Tim Peters K6TVP

C111 Control Head 2.3 MB PDF Manual courtesy of Jerry Matthews WAØUZI, scan courtesy of Tim Peters K6TVP

UNICALL manual 19 MB PDF Manual courtesy of Jerry Matthews WAØUZI, scan courtesy of Tim Peters K6TVP
Has info on the 1044 tone panel, 1180 tone decoder, 1189 UNICALL, 1190 / 1191 four tone encoder, 1192A tone encoder, 1194 subaudible tone encoder / decoder, 1197 four tone expander and some service bulletins.

Aerotron/Repco Dimension VHF and UHF Repeaters Contains the schematic, service and alignment chapters for the 10w and 35w high band and UHF units. Donated by Andrew Pepper KC2EUS. 830 kB PDF file.

Technical manual on the Aerotron Mega-E synthesized low band radio 8.2 MB PDF file. John Harrington W5EME originally donated it in 2000 but the file wouldn't open, and emails to him bounced (I was hoping to get an article on converting the synthesizer to 5 kHz spacing). He wrote:
My local club recently came into a bunch of Aerotron Mega-E 100W LB synthesized trunk-mount radios, and it fell to me to get them on six meters. Since the radios were the high-split jobs and I had an instruction manual, after much gnashing of teeth and a totally inappropriate amount of cursing, I got them on 52.525. They work surprisingly well, 100W out and average 0.2 microvolts sensitivity. I ALMOST understand how to program the EPROMs for any frequency within 6 meters, but presently can only program frequencies within 100 kHz or so of 52.525 MHz (the national simplex freq.). Since I had to convert the synthesizer to 5 kHz spacing (the radio normally only uses 10 or 12.5 kHz channel spacing) the formulas in the book don't work anymore. Has anyone done this before who can help me with an algorithm good for 5 kHz spacing?

Also, the radios are equipped with a 16-channel "public service" control head, type 1292. This head has a scan function, but I need a book to show me how to program it to scan selected channels, pick a 'priority' frequency, etc. As it stands now, without programming, the scan, priority, aux1 and aux2 buttons don't do anything but light up when pushed. If anyone has a book on this control head, I'll gladly pay to have it copied and sent to me.

Jerry Coffman WB5RUA sent in a good 8.2 MB PDF copy in June 2007. He wrote:

I also added my estimation for hexadecimal numbers for the 6 meter frequencies, but make no promises they will work. Maybe someone could verify these and create us a little computer program to create a binary file to burn to the EPROM for 6 meters?

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This page first created a long time ago in a galaxy 3000 miles away.

This web page, this web site, the information presented in and on its pages and in these modifications and conversions is © Copyrighted 1995 and (date of last update) by Kevin Custer W3KKC and multiple originating authors. All Rights Reserved, including that of paper and web publication elsewhere.

Information and Modifications
	MPAC UHF Base Station Receiver, part 1 of 4 Donated by Don Ritchie K8ZGW 2.9 MB PDF file.
	MPAC UHF Base Station Receiver, part 2 of 4 Donated by Don Ritchie K8ZGW 2.7 MB PDF file.
	MPAC UHF Base Station Receiver, part 3 of 4 Donated by Don Ritchie K8ZGW 7.1 MB PDF file.
	MPAC UHF Base Station Receiver, part 4 of 4 Donated by Don Ritchie K8ZGW 1.6 MB PDF file.
	MPAC UHF Base Station Transmitter, part 1 of 3 Donated by Don Ritchie K8ZGW 3.7 MB PDF file.
	MPAC UHF Base Station Transmitter, part 2 of 3 Donated by Don Ritchie K8ZGW 5.2 MB PDF file.
	MPAC UHF Base Station Transmitter, part 3 of 3 Donated by Don Ritchie K8ZGW 6.1 MB PDF file.
	MPAC Test Set This manual covers both the portable and rack mount versions. This design is rather interesting - it has an oscillator in the IF frequency for tuning and netting crystal-based radios. 1.45 MB PDF file.
	Rodger Williamson N4NRW has a complete manual for MPAC VHF rack mount. It includes schematics, parts list, service information, X-ray PCB views, etc. He is willing to provide copies of limited sections of the manual for those in need. Contact him directly at: his-callsign [ at ] arrl [ dot ] net.
	1045 Power Supply 708 kB PDF Manual courtesy of Jerry Matthews WAØUZI, scan courtesy of Tim Peters K6TVP
	1259 Tone Control Panel 13.2 MB PDF Manual courtesy of Jerry Matthews WAØUZI, scan courtesy of Tim Peters K6TVP
	C111 Control Head 2.3 MB PDF Manual courtesy of Jerry Matthews WAØUZI, scan courtesy of Tim Peters K6TVP
	UNICALL manual 19 MB PDF Manual courtesy of Jerry Matthews WAØUZI, scan courtesy of Tim Peters K6TVP Has info on the 1044 tone panel, 1180 tone decoder, 1189 UNICALL, 1190 / 1191 four tone encoder, 1192A tone encoder, 1194 subaudible tone encoder / decoder, 1197 four tone expander and some service bulletins.
	Aerotron/Repco Dimension VHF and UHF Repeaters Contains the schematic, service and alignment chapters for the 10w and 35w high band and UHF units. Donated by Andrew Pepper KC2EUS. 830 kB PDF file.
	Technical manual on the Aerotron Mega-E synthesized low band radio 8.2 MB PDF file. John Harrington W5EME originally donated it in 2000 but the file wouldn't open, and emails to him bounced (I was hoping to get an article on converting the synthesizer to 5 kHz spacing). He wrote: My local club recently came into a bunch of Aerotron Mega-E 100W LB synthesized trunk-mount radios, and it fell to me to get them on six meters. Since the radios were the high-split jobs and I had an instruction manual, after much gnashing of teeth and a totally inappropriate amount of cursing, I got them on 52.525. They work surprisingly well, 100W out and average 0.2 microvolts sensitivity. I ALMOST understand how to program the EPROMs for any frequency within 6 meters, but presently can only program frequencies within 100 kHz or so of 52.525 MHz (the national simplex freq.). Since I had to convert the synthesizer to 5 kHz spacing (the radio normally only uses 10 or 12.5 kHz channel spacing) the formulas in the book don't work anymore. Has anyone done this before who can help me with an algorithm good for 5 kHz spacing? Also, the radios are equipped with a 16-channel "public service" control head, type 1292. This head has a scan function, but I need a book to show me how to program it to scan selected channels, pick a 'priority' frequency, etc. As it stands now, without programming, the scan, priority, aux1 and aux2 buttons don't do anything but light up when pushed. If anyone has a book on this control head, I'll gladly pay to have it copied and sent to me. Jerry Coffman WB5RUA sent in a good 8.2 MB PDF copy in June 2007. He wrote: I also added my estimation for hexadecimal numbers for the 6 meter frequencies, but make no promises they will work. Maybe someone could verify these and create us a little computer program to create a binary file to burn to the EPROM for 6 meters?