[SARES] Insight Needed

All,
    I need some insight from those more in the know about radio 
frequency assignments than me.  Yesterday, Saturday 9/30, during the 
CERT exercise at the Sunnyvale Baylands we became aware that the hang 
gliders in Ed Levin Park were using our primary simplex (147.405 MHz) 
for their coordination.  This brings up a question or two;  #1 since 
this is a type of aircraft, are the allowed to use amateur radio 
frequencies or should they be using frequencies in the aircraft 
band(s)?  #2 since this frequency, appears to me, to be assigned for our 
emergency (or any other) use, is there a avenue for communicating to 
them that they are not to use this frequency?

    During the exercise there had been a problem that required us to 
switch operations to a different frequency, therefore the hang gliders 
were not a problem, THIS TIME.  My concern is that if at a future time & 
date SARES is using the frequency for an important operation and the 
gliders are either using the frequency or start trying to use after we 
are in the middle of our operation.

KNOWLEDGEABLE answers and comments requested.

Bob Gundrum, KG6MOL
EC
+++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
SARES members mailing list: <sares-list@sunnyvaleares.org>
For help with (un)subscription send e-mail to <majordomo@athm.net>