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GhostNet
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Participation on 30 Meter Band for JS8Call #9

Open WR3ND5 opened 5 months ago

WR3ND5 commented 5 months ago

Update: It is rightfully being disputed that Technicians have data privileges on this band. Please see below comments as well. Thanks, and sorry for any confusion on the matter.

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Technician class amateur radio operators do not have transmitting privileges on many portions of the HF bands.

They do however have access to the 30 meter band. This band is a CW (~Mores code) and data (including JS8Call) band - voice is not permitted. Also, this band is limited to a transmit power of 200 watts and is off limits to contesting (field days, etc.), so it is generally less susceptible to deliberate jamming and/or accidental interference by more powerful or prolific interests - such actions are more easily identifiable and widely discouraged within the HAM community and by the FCC.

For these reasons I think 10.107 MHz, following the given frequency convention, or similar at adjacent or alternative time windows, if not in place of the current frequency/window, would be beneficial to more people and groups interested in participating with the GhostNet's JS8Call comms plan.

Thanks for your consideration, @ GHOSTNET, @ GNUSAIL, @ WR3ND

lowclearance commented 5 months ago

Unfortunately, this information is incorrect. Technician class operators DO NOT have access to any privileges on the 30m band (See [47 CFR 97.301(e)]). It is true that this band is dedicated for 200W max CW and data but this does not apply to the Technician class license, which has CW HF privileges on only the 80m, 40m & 15m bands, and then 10m CW/Data/SSB phone. There is currently no place below 28.000MHz for a Technician class licensee to operate using any mode other than CW.

Not trying to be a sad ham as they call it but do not want anyone to get the wrong information.

WR3ND5 commented 5 months ago

Huh, well now that's strange. I could have sworn they did. I'll have to look into it some more and figure out where I heard that from. Sorry for any confusion or erroneous information. Well, at least the band has the other advantages I mentioned, but shame if it doesn't include Technicians. Cheers. ... At any rate, there is a lot of talk of interference on other portions of other bands in different locations, some seemingly deliberate and some due to the usual local band usage, so the 30 meter band seems like a good contender for a solution.

In an emergency situation, I think people are likely to gravitate toward what they know. This includes radio bands. Just based on my monitoring from SDRs in Pennsylvania, Georgia, San Francisco, and locally here in Illinois, the 30 meter band has observably had much less general noise and transmission activity and interference at the same times over several days across weeks of comparison.

Thanks.

WR3ND5 commented 5 months ago

I have considered setting up a bridge repeater to 10.107, but this would have the drawback of also being susceptible to receiving interference and noise from the other bands that are currently used, so I do not think an automated system for this would be very beneficial. If a relay were to succeed for the intended use, it would need to be selective and/or manually operated. While this is a possibility, it would be more productive to have the sources of the intended information transmit on 10.107. Cheers.

shithubsucks commented 3 months ago

I am interested in 30 meter Ghostnet as I operate mobile. 40 meters is difficult to operate in a vehicle the size of a sedan. My loading coil is so narrow-banded that while it is possible to operate stationary with acceptable SWR, the antenna moving around changes the vswr enough to engage to autotuner.

I am only concerned about the different propagation effects (if any). Not having contesters is a great benefit to that band.

shithubsucks commented 1 month ago

If there is to be a 30 ghostnet the other window frequencies should be adjacent to each other and not far apart like the current plan. The rtty and emergency voice nets taking place on such a wide span of frequencies means that users of loaded antennas cannot participate because their antennas simply will not have enough bandwidth without a retune proccess. Those retune processes are extremely inconveinent and time consuming.

Rather, ghostnet should consider a channelized HF approach. This is what allows Citizens Band users on 27MHz to use such small antennas (3') and still have 40 channels with acceptable vswr (below 1.5:1).