Here in northern California, repeater spacings in the 2-meter band
seem to be about evenly divided between 15 kHz and 20 kHz, depending on
which portion of the band one is taking about. The local repeater
coordination council (NARCC) mandates the use of narrow-selectivity RF
and IF stages, and peak transmit deviations not to exceed 4 kHz.

The new Kendecom repeaters my group is in the process of putting on
the air, have an IF response which falls off of a cliff at 7.5 khz...
in fact these rigs are very prone to pop or squelch if somebody's
radio is tuned up too hot and is over-deviating past this point.


That's nice that your group can put the Kendecom repeaters on the air. In
some areas there is not that much money for the whole system let alone just
for the repeater.