Hi Again Eric, When you get a chance will you look at these duplexers and give me your opinion? http://www.radiodata.com/fiplex/products/PDFs/DHV05.pdf
The duplexer I got with the repeater is the Model DHV-0544.( THE 533 has been discontinued) The way I am reading their specs it is 90 dB at 1 MHz, Anyone else wish to comment, Chuck you have some 6 meter machines too. I just got these from the owner today and am looking for advice, opinions, etc. This is a new product that he spent a lot of bucks on, so I am looking for opinions, anybody that may have experience with these duplexers, to include a split site Vs these duplexers. Thanks all.... 73 JIM KA2AJH Wellsville, N.Y. On Mon, Jul 5, 2010 at 2:23 PM, Eric Lemmon <wb6...@verizon.net> wrote: > > > 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: Repeater-Builder@yahoogroups.com<Repeater-Builder%40yahoogroups.com> > [mailto:Repeater-Builder@yahoogroups.com<Repeater-Builder%40yahoogroups.com>] > On Behalf Of James Cicirello > Sent: Monday, July 05, 2010 9:54 AM > To: Repeater-Builder@yahoogroups.com <Repeater-Builder%40yahoogroups.com> > 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 > <wb6...@verizon.net<wb6fly%40verizon.net> > <mailto:wb6...@verizon.net <wb6fly%40verizon.net>> > 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: Repeater-Builder@yahoogroups.com<Repeater-Builder%40yahoogroups.com> > <mailto:Repeater-Builder%40yahoogroups.com<Repeater-Builder%2540yahoogroups.com>> > > [mailto:Repeater-Builder@yahoogroups.com<Repeater-Builder%40yahoogroups.com> > <mailto:Repeater-Builder%40yahoogroups.com<Repeater-Builder%2540yahoogroups.com>> > ] On Behalf Of James > Sent: Sunday, July 04, 2010 3:46 PM > To: Repeater-Builder@yahoogroups.com <Repeater-Builder%40yahoogroups.com> > <mailto:Repeater-Builder%40yahoogroups.com<Repeater-Builder%2540yahoogroups.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 > > > -- KA2AJH Jim Cicirello 181 Stevens Street Wellsville, N.Y. 14895 (585)593-4655
