What is a Shared non-protected pair?

  1. On the two meter band we have designated 145.25 MHz for use a shared non-protected pair. To put a repeater on this frequency, you do not go through the normal coordination process. It is wise to apply for the pair.

    This is for low elevation and low power machines; preferably less than 100 feet HAAT, and less than 100 watts ERP.

    By non-protected it means you have no halo around you that someone cannot put a repeater on the same frequency.

    You cannot run carrier squelch. PL (aka CTCSS) tones are strongly recommended on the input and output of the repeater. The frequency coordinator will work with you to determine the best one.

    This is intended for the trustee that just wants to have a repeater to experiment with. It would also be very useful for disaster scenes and public service activities where perhaps a repeater would be useful, one is not readily available. You have one mounted in a vehicle or on a trailer. Pull up on a near by hill run 25 watts into a Ringo-Ranger on a 20-50’ mast and have a repeater while you need it.

    One word of caution in the metro areas you may suffer interference from cable TV leakage. Another reason PL tones are required for these systems.