This is incredible. Please continue this series! You sir, are a gentleman and a scholar.

Thank you for explaining this in very easy terms. I just learned more than I ever knew about this software. I also watched your video on NVIS and learned more there than the 15 years I've been a Ham. I am now regretting being a 63B when I served. I should have become a radio operator.

Great information! Thanks for getting this out there. I'm an ex-98G(German), so spinning the dial and listening to what's out there is my jam! 73 DE KF5RHI, SPCIC, MI, Commanding? 😎

Enjoying this series, Captain Sherburne. I was 11B but have been into comms/electronics since I was around 8 years old. These videos are motivating me to get my shack squared away and my HF station back on the air! 73, (former) SPC Wes Harris/W9YYH

Outstanding content. This series has been so helpful in planning out a regional NVIS-based communication plan.

Outstanding presentation! First rate useful information

That's what i was looking for ; thanks so much for this series of episodes ! It's phenomenal and awesome, i mean it's better that just "great" :)

These amazing information...I'm learning:) Nothing better than knowledge sharing.

This new VOACAP is so "noob" friendly! :) thx u , for nice and easy tutorial

I was not getting it yet in my HF work with prop prediction as I did not trust them until two things came. This was HF-ALE radios and then the link quality analysis function. Then engineered from Harris showed me the most simplest dos prediction program in 1994 called mini prop and when LQAs were performed, our channel choices proved to be working. If you do not get a prop study done for your area of operations, plan on failure as I have seen ALE systems where they did not work at all as all frequencies over the MUF and most of the time, unable to communicate at nighttime. We run a prop prediction and show the user how to make the correct choices.

Great tutorial!

Thank You!

thank you

You know, I had been dreading trying to do some HF stuff since the noise floor around me is insanely high, but I figure if I put a beam up into the sky and TX FT8 in the blind I might surprise myself.

Thanks for this great tutorial. Should the Min. Take Off Angle be set higher for NVIS mode or does the antenna model itself handle this?

@militaryhfradio244

4 жыл бұрын

Antenna model handles it.

How can I get this power point presentation?

Great tools! But these prop charts are not making sense to me. They appear to show more useable frequencies during the east coast's daytime (about 12:00-24:00 UTC) than at night time. Isn't that backwards? Shouldn't that big hump of workable spectrum open up at night? To me it reads as if the UTC to local time conversion is backwards. That is to say, I would expect to see that big bump in reliable frequencies start around 5:00 PM local time, not 7:00 AM. Am I missing something obvious?

@militaryhfradio244

3 жыл бұрын

The bigger question is what two places are you trying to communicate to and from and with what antennas and what power? Is your question in reference in what is shown in the video or something you put together? Spectrum does not open up at night. All other Ionospheric regions go away at night except for F1/F2 which combine to a single F layer. This VOACAP analysis shows you prop relation to where you set the two points. At night, you are limited to freqs 10 MHz and under and during the day it opens up to freqs over 10MHz but you are also limited to how far or close you may be to the target station.

@samuellockridge4630

3 жыл бұрын

@@militaryhfradio244 Thanks for the reply! I was referring to the graphs shown in the video. I've been reading a lot since posting this and everything is making more sense now. I had always imagined that since propagation is better at night for the lower HF frequencies (like AM and shortwave broadcast), as the D layer disappears, that meant that HF propagation must be better overall. I didn't realize that the collapse of the F layers meant that higher HF frequencies can actually get worse at night. But this is exactly why I watched the video, to better understand how to sail the airwaves! Thank you very much for the explanation and the excellent content.