Jim, A low-band repeater with a flat-pack duplexer having 90 dB of isolation? That's amazing! My low-band repeater uses four 12" diameter cans that each stand about five feet tall.
Your MC74AAU33A radio is an M-series 100 watt mobile radio, covered by PC-61 here: <www.repeater-builder.com/ge/product-code-indexes/index-pc61-mastr-ii-m-seri es-mobiles.pdf> The transmitter tuning information is covered in LBI-4898, available at the link I gave you earlier. It is not a full-page version, but it will have to do until we can borrow a paper copy to scan. If any readers of this list have a clean and complete original LBI-4898 that we can borrow for full-page scanning, please contact me directly at mycall at verizon dot net. 73, Eric Lemmon WB6FLY -----Original Message----- From: [email protected] [mailto:[email protected]] On Behalf Of James Cicirello Sent: Monday, July 05, 2010 9:54 AM To: [email protected] Subject: Re: [Repeater-Builder] MASTR II LOW BAND TUNING Hi Eric, First thanks you for pointing me to the manuals and Don for the NHRC Tuning site. Eric the combination numbers are MC74AAU33A. They came from a trucking company and I think they are on 47.XXX. I am taking over the Wellsville 53.090 Repeater as the original owner is re-locating. He has a custom built repeater MASTR II from Repeater Builder going thru a rack mount flat pack duplexer with about 90 Db of isolation, but there is also 2 Db of receiver loss thru the cans. I have two sites 6 miles apart and I want to try split sites using the above mentioned GE as the TX and use the HOT RX on the custom Repeater for the RX. I am in hopes that all I have to do is tune the TX and hook it to the link radio. 73 JIM KA2AJH On Sun, Jul 4, 2010 at 8:39 PM, Eric Lemmon <[email protected] <mailto:[email protected]> > wrote: Jim, Perhaps you are not aware that Repeater-Builder has a huge index of General Electric manuals. Just look at any "Description & Maintenance" manual for a low-band radio to get the tuning instructions. Since you did not specify exactly which low-band radio you have, any of these LBIs will probably get you going: <www.repeater-builder.com/ge/lbi-library/lbi-4896.pdf <http://www.repeater-builder.com/ge/lbi-library/lbi-4896.pdf> > <www.repeater-builder.com/ge/lbi-library/lbi-4898g.pdf <http://www.repeater-builder.com/ge/lbi-library/lbi-4898g.pdf> > <www.repeater-builder.com/ge/lbi-library/lbi-30104b.pdf <http://www.repeater-builder.com/ge/lbi-library/lbi-30104b.pdf> > <www.repeater-builder.com/ge/lbi-library/lbi-30293a.pdf <http://www.repeater-builder.com/ge/lbi-library/lbi-30293a.pdf> > Please be aware that even a high-split (33 range) radio may need modification to perform well in the Amateur 6m band. What is the Combination Number of the radio you want to tune? 73, Eric Lemmon WB6FLY -----Original Message----- From: [email protected] <mailto:Repeater-Builder%40yahoogroups.com> [mailto:[email protected] <mailto:Repeater-Builder%40yahoogroups.com> ] On Behalf Of James Sent: Sunday, July 04, 2010 3:46 PM To: [email protected] <mailto:Repeater-Builder%40yahoogroups.com> Subject: [Repeater-Builder] MASTR II LOW BAND TUNING Hi Guys, Is there a link to tuning a low band mastr II? I have googled and find all kinds of VHF High and UHF but not Mastr II Low. I want to tune to six meters. Thanks JIM KA2AJH -- KA2AJH Jim Cicirello 181 Stevens Street Wellsville, N.Y. 14895 (585)593-4655
