Bob - Thanks for the NHRC-6 recommendation that, with its cross-band capability with dual simplex units, is a much better idea than my plan to use an NhRC-3+. If the coordinating councils (we have several in New York State plus the adjacent states) don't want to make any designations, I'll still confer with the various area associations to at least find out which channels are used locally for whatever reason to minimize interference.
Paul W2ARK On May 8, 2006, at 9:29 AM, Bob Witte K0NR wrote: > Re: Crossband/Portable repeaters > > - Here in Colorado, we have two 2 Meter pairs designated for > statewide > use for > portable/emergency/special event repeaters. These pairs get used to > fill in the dead spots when > emergencies occur. A number of clubs and ARES groups have portable > repeaters set up > on these pairs. (Good band planning by whoever put these in place > years ago.) > - Some of the emcomm folks use dualband transceivers with crossband > repeat as a inexpensive way > to extend radio range (often used to extend HT range from inside a > building or other bad spot). > These radios don't meet the letter of the law (FCC regs) with > regard > to identification (my opinion, > you mileage may vary.) > - We do not have any designated frequencies for crossbanding to > 440 MHz > in the bandplan. > Most people just find some lightly used uhf simplex frequency. > - If conventional transceivers are used, the power needs to be > reduced > or additional cooling > supplied due to 100% duty cycle operation. > - I constructed a crossband repeater using two transceivers and an > NHRC-6 controller that knows > how to handle the ID of two transmitters appropriately (most > repeater controllers do not). > http://www.nhrc.net/nhrc-6/ > - One issue with a vhf/uhf crossband repeat set up working into a > repeater....the repeater transmitter > must drop before the crossband repeater can turn the link around. > Shortening the hang time on > the conventional repeater (or using CTCSS that drops with the > received signal) helps this issue. > > 73, > Bob K0NR > [EMAIL PROTECTED] > > 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/
