These simplex frequencies correspond to both the ARRL Band Plan and the regional (T-MARC) band plan, and should be used for net operations. An abbreviated list in ICS-205 format can be accessed this link.

6m	2 m		1.25 m	70 cm
51.50	146.400***	147.405	223.420	445.925
51.52	146.415	147.420	223.440*	445.950*
51.54	146.430	147.435	223.460	445.975
51.56	146.445*	147.450	223.480	446.000**
51.58	146.460	147.465	223.500**	446.025
51.60	146.475	147.480	223.520	446.050*
52.02	146.490	147.495		446.075
52.04	146.505	147.510
52.525**	146.520**	147.525*
52.55*	146.535	147.540
53.02	146.550	147.555
53.51*	146.565	147.570
53.55*	146.580*	147.585
53.90	146.595

* Montgomery County Preferred Simplex Frequencies.

** National Calling Frequencies. These should be used only to establish initial contact or for a brief communication. Choose another simplex frequency for extended operations.

*** 146.400 is listed as a simplex frequency in the ARRL band plan. However, in our area, it is used as a repeater input frequency, and should never be used for simplex communications.