Ron Natalie wrote:

rps wrote:


Doesn't an MEA also guarantee communications reception unless an MRA
indicates a higher altitude?


No. Com reception is not a factor in MEA determination. MRA has
nothing to do with comm either. The MRA tells you that you can
receive the nav signal that is used to define an intersection (from
an off airway navaid).

Wrong. Here is the Victor Airways TERPS:

1718. MINIMUM ENROUTE INSTRUMENT ALTITUDES (MEA). An MEA will be
established for each segment of an airway/route from radio fix to radio
fix. The MEA will be established based upon obstacle clearance over the
terrain or over manmade objects, adequacy of navigation facility
performance, and communications requirements. Segments are designated
West to East and South to North. Altitudes will be established to the
nearest 100 foot increment; that is, 2049 feet becomes 2000, and 2050
feet become 2100.