You might be talking about 2 different parts of the FCC rules. I think that 1 place says that PDs can use any freq at 5 watts for surveillance ops if they do not interfere with anyone. Then somewhere else in the FCC rules it probably says that you can use the freqs of other agencies if you have a letter of permission from the other agency. Just a subtle distinction to make you go "hmmm" Peter S - Boston MA