Hi Adi At VE2RM (Rigaud, QC) we have been doing that since 1986 with a 145.01 digi on the same antenna as our 146.400TX/147.000RX repeater. Spacing is similar to what you want to do. We are using a clone of a Sinclair C-series multicoupler (3 6in pass cans and one notch can) that is installed in the feedline between the antenna and the duplexer. There is about 65dB isolation on 146.40 and a lot more on 147.00 with about 0.5dB insertion loss thru the multicoupler to the repeater. In your system your receiver would be closer to the digi than ours but I think it is do-able although you have to be careful of the skirts on the notch can. I configured ours with a non-symetrical skirt on the passband to avoid interfering with the 146.400 TX power.
Contact me off-line if you need further info. Burt VE2BMQ>>> Adi Linden wrote: > Hi Eric, > > The VHf repeater is 146.850 TX and 146.250 RX. The simplex APRS frequency > is 144.390. There is just a single duplexer installed. Six round cans from > Sinclair. Power output of the repeater transmitter is 25W. > > Running a digi on 144.390 would be the preferred option. However, if that > is not easily possible, how about just running a 144.390 receiver on the > same antenna? There is a good possibility that site may have network > access later this year. > > Adi 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/
