Near-Vertical Incidence Skywave and NVIS Day 22 (Radio KD8TTE Ep 058)

[@vironpayne3405]

The more I use and learn about NVIS, the more I am convinced it is the optimal post disaster communications mode in virtually every circumstance. Great video. Keep up the good work.

[@ChaplainDaveSparks]

Agreed. The ionosphere is the only _”infrastructure”._ The only circumstance where it could conceivably be unusable would be and _Electro Magnetic Pulse (EMP)_ or a _Coronal Mass Ejection (CME)_ which could disturb the ionosphere. *73 de AF6AS in **_“DM13”_** land*

[@jimjaeger8968]

Good info. This gives me great insight how propagation works on a much deeper level. Thanks for the new knowledge.

[@somebodysnobody468]

As a new operator interested in nvis, this seems to clarify some of the fog. Excited to try to implement the new info

[@muddskip]

FYI, Most ARES stations will be looking for COUNTY as the exchange, not grid square. Or at the very least, in addition to.

[@KD8TTE]

Thanks. I've confirmed that with the SEC and will add that to ERRATA in the video description. I went from the information on the ARRL Ohio Section SEC page, which (as shown in the video) indicated six-digit grid. I expect that will get corrected soon if it hasn't been already.

[@Henviggdbgjt]

Thank you for making such a well organized set of training videos! 73 de KLØT

[@mattmcconnell4814]

Are they going to do it again next year?

[@KD8TTE]

I expect so. We've done it every year since it was announced. We typically run some special add-on tasks from BLACK SWAN Net to mix it up.

[@mattmcconnell4814]

@KD8TTE excellent. I will check-in through conventional skywave, too far for NVIS.

[@hyperionsixzeroeight5064]

What is 60C1, 60C3 and 60C5 emissions?

[@KD8TTE]

Those are channel (frequency and mode) designators used on BLACK SWAN Net. www.blackswancomex.org/net/soi

[@migalito1955]

I use NVIS exclusively on 40 meters, largely because calling for a few seconds a DX station does not interest me. I use folded dipoles or an inverted V as the antenna. Sometimes only inches off the ground. What I noticed is impedance drops when a 50 ohm resonate antenna becomes close to the ground. I therefore use a Folded Dipole design constructed from stereo speaker wire. The folded dipole transforms the feedpoint impedance by a multiple depending on wire separation. The speaker wire geometry I find to be perfect for turning an otherwise low impedance to 50 ohms.

[@RadioExpeditionProject]

Grill Operator 😂