[AK-VHF] Good tutorial on VHF propagation modes

[Ed Cole]

 From Ken-NL7B:
Here’s a good site for descriptions of tropospheric dx modes: 
https://www.dxinfocentre.com/propagation/tr-modes.htm.

Good link for an overlook of the various modes of propagation seen on 
VHF and higher frequencies.

I recall my friends in the SBMS* talking about inversions and 
tropospheric "pipes" or "waveguides" appearing on the microwave bands.

*San Bernardino Microwave Society: http://www.ham-radio.com/sbms/
I was member in the 1970's when I lived in Southern CA.

Also check out North Texas Microwave Society: http://www.ntms.org/
and Roadrunners Microwave group: https://k5rmg.com/

73, Ed - KL7UW

Note to Brandon: maybe add the top link to our website?