The FT8 (series) on License Class A is significantly more challenging than using shortwave... Please be prepared, and let's begin.
- 6m VHF DX: For northern grids, this typically lasts from March to November, with a noticeable opening in the summer months (around the summer solstice), followed by openings towards South Africa after autumn. Windows also appear in South America during this time (Note: This describes om89's typical pattern; there will be propagation differences over 60km).
- 2m VHF DX: Through several years of observation, most BY radio stations' 2m VHF DX activity occurs annually.Total operating hoursIdeally, the activation should take around 72 hours, as you correctly pointed out, which is a total of 3 days. Each activation might only last for a few hours, perhaps one or two, depending on the conditions. Typically, activating a 2-meter VHF DX station will be accompanied by strong FMDX/TVDX activity.
In summary, for VHF DX (long-distance communication), you need to be patient, persistent, and have a good sense of timing. Don't give up after just a few minutes without making contact with any stations; this is also a common reason why people quit. Of course, that's the biggest part of the fun of VHF DX.
Regarding antennas, many people say "If propagation comes, GP can also connect to South America" (and in fact, the 7-zone big players have already done it). However, you shouldn't always rely on extremely strong Es/F2 propagation appearing and your small antenna just by chance picking up the signal.
Additionally, regarding "ghosting," I don't object to it. If you haven't personally experienced VHF DX,FeelingIf you immediately quit whenever you lose, you'll miss out on half the fun.
Now, let's discuss the VHF and higher frequency bands. Currently, there are essentially two main directions: EME (Earth-based Mobile) and VHF visual range. Overall, these two methods "are significantly lower than VHF DX." Yes, that is what I am saying."Significantly lower than"。
EME (moon reflection) and microwave visibility can be calculated. As long as the gain, noise, power, etc., meet the required levels, you can communicate. The difference in dB can also be calculated, which is much easier than VHF DX, where success depends on luck. In fact, it's something that can be achieved with money. So, if you are interested in EME, you can search for posts about lactic acid bacteria within the forum. For beginners, it's already very simple.
Furthermore, there are also some more niche directions: meteor debris scattering, aurora scattering, aircraft scattering, tropospheric scattering, and rain scattering. These require either a fortunate coincidence or a powerful tool, and they are primarily experimental in nature.
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