RADAR AND 440 MHZ
Repeaters operating on the coasts have been found interfering with the radar operated by the Department of Defense. The ARRL has been negotiating with the DOD so that the repeaters causing interference could operate with the least interference to the defense system. On the East coast some of the repeaters have changed their pattern, others have reduced power, some have done both and probably a few have found it necessary to shut down until a solution can be found.
Repeaters on the West coast have the same problem but a few have ignored it and are waiting for a direct conflict. This may cause more drastic actions to be taken and might not be the most advisable solution to the problem. We must remember that the 440 band is shared with the military services and amateur radio is the junior partner in this spectrum.
We, in Michigan have had a similar problem with an interfering band in our 440 band with its "A line" to avoid conflict with other services. (I believe these to be Canadian.) We live with it and I suspect that the coastal units will have to also.
The DOD could have forced the shutdown of all stations found to be interfering without giving amateur radio a choice, butthe ARRL has been working very hard for a solution top the problem.