[TenTec] ground wave Mode? How to know?

[Stuart Rohre]

Bob,
very simple really.  When the band at 10m is open for skywave, then you hear
the distant stations in multi hop skip zones, and you can tell by their
calls or QTH reports.

When 10m band noise causes AGC to run open, and you are not hearing any
other stations except close by stations, then you have ground wave
operation.  100 miles is well under the typical first hop skip distance at
30MHz.
73,
Stuart Rohre
K5KVH