Uninverted - inverted - they both try to cram 16 kHz bandwidth channels into 15 kHz. That is always going to create problems compared with proper bandplan spacing.
What's even more ironic is the Land Mobile industry (and FCC) hasn't learned anything from their past mistakes. They are now cramming 11 kHz wide channels into 7.5 kHz channels on VHF. The writing is on the wall for future problems. Here's a thought along the same lines - why not put our 15 kHz bandwidth repeaters into 1 kHz channels. That way, frequency reuse won't be a problem. ;-> Joe M. [email protected] wrote: > At 8/30/2009 14:34, you wrote: > > >> Here is one reason to have a different PL Tone...close spacing. Here in >> NOVA 146.625 and 146.610 are two repeaters spaced on opposite sides of >> WDC. Coverage is about the same. .625 users frequently bring up the .610 >> machine due to intermittant over deviation, etc. If the .610 machine had >> the same PL tone there would be no benefit from using the PL tone. > > Well, that's what you get with an uninverted 15 kHz spacing > bandplan. Users DXing a repeater 15 kHz away from another one in their > backyard will interfere & there's little you can do about it except use a > different CTCSS tone & accept the fact that the repeater's performance will > be severely degraded when this happens. > > Bob NO6B > > > > ------------------------------------ > > > > Yahoo! Groups Links > > > > > ------------------------------------------------------------------------ > > > Internal Virus Database is out of date. > Checked by AVG - www.avg.com > Version: 8.5.387 / Virus Database: 270.13.38/2274 - Release Date: 07/31/09 > 05:58:00 >
