EMC191 Type Accepted? 1/2 To: Emergency Communications Units - Information Bulletin To: Emergency Management Agencies via Internet and Radio By: Auxiliary Communications Service (ACS) of the California Governor's Office of Emergency Services EMC184 Type Accepted? 1/2 For release 7/5/99 Query: Please explain "type-accepted" equipment for use in EMCOMM Units. I keep hearing this term but it isnšt clear what it signifies. Response: This is an interesting and relevant question. Most often this term comes up relative to modification of the Amateur radios as to use on agency PUBIC SAFETY frequencies. However, it can come up in agencies that operate on BOTH the Amateur and Public Safety channels. Sometimes it is easier to just switch a frequency in a unit that to go to another radio. Radio equipment for use on PUBLIC SAFETY EMCOMM (non-amateur) frequencies must be type accepted by the Federal Communications Commission. It must have been found to be acceptable for transmitting a "clean" and stable signal. For example, all spurious radiations must be kept below a limit prescribed by the FCC. Type-accepted radios are labeled as such, typically on the rear or bottom panel. Further, modified Amateur radios are not necessarily "clean" or frequency stable to FCC type-accepted standards. If operated outside the Amateur Service bands it could cause spurious radiations (and resulting interference). As a result, some agencies have issued specific prohibitions against the use of "modified" Amateur radio equipment by their units as a precaution to avoid inadvertent use on government frequencies, and hence, embarrassment to the agency. Mike Krueger, N6MIK, Orange County RACES Assistant Radio Officer and Training Officer, explains the situation clearly. "Expanding the frequency of your amateur rig is legal, but using that rig to transmit on Public-Safety frequencies IS NOT legal. Amateur radios are not FCC certified for operation outside the amateur bands." Continues, next week, bulletin 192. --- To subscribe to bulletins, use the Subscription Services Web page at . If you don't have Web access, just send an E-mail message to . - For training assistance contact the ACS Training Officer at the Web site or send an E-mail to larton@garlic.com - Submit suggestions, topics, or comments on the bulletins to cary.mangum@macnexus.org or cary_mangum@oes.ca.gov or kbourne@earthlink.net or ken_bourne@oes.ca.gov Bulletins are on the ACS Web page at http://acs.oes.ca.gov and a landline BBS at 916-262-8856 (graphical and standard interface). An FTP archive is at ftp.ucsd.edu/hamradio/packet/tcpip/incoming for some bulletins, and at ftp.ucsd.edu/hamradio/races for older bulletins. EOM