1. 1 Amateur Radio in the Model City Gregory Lapin, N9GL ARRL The National Association for Amateur Radio

2. Radio Amateurs: Ready to Serve Radio amateurs are found everywhere. Radio amateurs understand the technical basis of radio. Radio amateurs have practical experience in dealing with: Different signal strengths Interference Antennas Propagation Radio amateurs have a strong tradition of public service. Radio amateurs have a long history of volunteerism. 2

3. Radio Amateurs are Everywhere  FCC Database contains 726,000 licensed amateurs  Large Cities  New York (pop 8.4M, density 27k):3624 licensed amateurs  Los Angeles (pop 3.9M, density 8k):2395 licensed amateurs  Chicago (pop 2.7M, density 12k):1511 licensed amateurs  Houston (pop 2.2M, density 3k):3965 licensed amateurs  Philadelphia (pop 1.6M, density 11k): 903 licensed amateurs  Phoenix (pop 1.5M, density 3k):2581 licensed amateurs  Medium Sized Cities  Denver (pop 649k, density 4k):1046 licensed amateurs  Washington (pop 646k, density 10k): 496 licensed amateurs  Boston (pop 646k, density 13k): 250 licensed amateurs  Albuquerque (pop 556k, density 3k):2213 licensed amateurs 3

4. Amateur Frequency Allocations VHF and higher  10.0-10.5 GHz  24.0-24.25 GHz  47.0-47.2 GHz  76.0-81.0 GHz  122.25-123.00 GHz  134-141 GHz  241-250 GHz  Above 300 GHz 4  50-54 MHz  144-148 MHz  222-225 MHz  420-450 MHz  902-928 MHz  1240-1300 MHz  2300-2310 MHz  2390-2450 MHz  3300-3500 MHz  5650-5925 MHz

5. Why Radio Amateurs?  The amateur radio service uses frequency bands that are widely dispersed throughout the spectrum. There is a good chance that radio amateurs in a Model City are already using frequencies that are reasonably close to those that will be used for testing communications.  Radio amateurs have a long history of performing public service without remuneration.  Much of the communication used by radio amateurs is based on receiving weak signals, which would be sensitive to interference from nearby frequency bands.  Any test plan for new forms of communications in a Model City should make use of volunteer radio amateurs to help ascertain the compatibility of the new communications with existing services. 5