TY - GEN AU - Jickling, R M AU - Shafer, J F C2 - , National Institute of Standards and Technology, Gaithersburg, MD DA - 1973-01-01 05:01:00 DO - https://doi.org/10.6028/NBS.IR.74-356 LA - en PB - , National Institute of Standards and Technology, Gaithersburg, MD PY - 1973 TI - Repeaters for law enforcement communication systems: ER -