CitizenZ wrote:No. NVIS will not work on other bands. That is a restriction of the NVIS technique. It only works on the 80-40 meter band. SSB with 100 watts (or less) and a long whip bent over the car should provide reliable com with a 500 mile radius. Omni-directional antennas will not provide reliable com at that range. Commercial SW/HF/VHF/UHF broadcasters don't get that range, reliably, with 50,000 watts. Occasional skip and skywave will do that range and more, but don't count on it when you need it.
I don't know of any other way to achieve reliable com at that range for mobile use. NVIS 40-80 meter WILL do it, without a doubt. With digital modes or Morse code it could even be done with 5 watts or less.
Thank you. I knew there were some frequency restrictions but was not sure what they were. What I like is these restrictions are physical, not legal (except the license part). I like it when wiser people fill in the gaps that I know I have with better details.
Edited to add- Mobile can be car mounted,,,,, but portable can be strung up where ever needed so you don't have a huge long antenna hanging on the car all the time. Talk about standing out while driving down the road. But they both can be done successfully.