🎓 Dr. Freemo 🇳🇱 @freemo@social.cleverlibre.org

@Syberia I didnt create it, its a few years old. One of my favorite memes though :)

@Syberia

@djatropine444 To be honest I find a lot of nurses dont remember a lot of their fundementals either.

@mushambo aluminum foil wont help. Thats a myth started by ham radio operators as a means of control!

@mushambo nah, but they can beam thoughts in your brains if they have a good yagi

@worldsendless

HAM didnt really have much to do with Qoto or mastodon, well except that its part of the many STEM oriented hobbies I have in general.

@Science

Hacked together an ultraportable HF antenna system to work well between 3.5Mhz - 200 MHz (80 meters - 2m) frequencies. Basically took a coil loaded GRA-1899T antenna with telescoping antenna, added some off-the shelf BNC adapters and did some minor hacking. To make it work I had to remove the center connector from two of the BNC adapter s(marked with an X in the diagram). Then added a short-circuit BNC connector, which connects the otherwise floating center connector from the bottom half to ground/shield enabling the counterpoise. Added two additional telescoping elements for the counterpoise and we have a complete system.

The thing I like about the approach is the modularity. For example I can remove or add normal t-connectors to change the number of counterpoises used. The setup pictured uses 2 counterpoises but it would be trivial to setup 1 to 4.

Also the short circuit connector (pictures here as the black and teal connector with the short circuit in it) can allow me to do multiple things if i want to get more complicated. For example if I want to remove the short circuit I can replace it with coils or capacitors for additional tuning. I can also leave it as is but connect an earth ground to it to improve the effectiveness of the counterpoise.

A final note, the loading coil attached to the radiating part of the antenna has a jumper with 6 different positions. This lets you manually adjust the size of the loading coil for different frequencies. Fine tuning is accomplished by changing the length of the antenna itself.

#Science #electronics #RF #radio #Amateur AmateurRadio #HAM #HAMRadio ## @Science

@djatropine444 I grew up on mr wizard as well... i dont know is probably the best answer a person can give

@djatropine444 Its an ugly job but someone has to do it. I'm more on the side of transparency and honesty than anything one side of the vaccine debate.

@wizard Keep in mind using **either** to transmit (outside of FRS or CB bands) you need a special license. So you cant really use either effectively if you arent licensed, at least not to transmit.

@wizard Well they server very different purposes.

HackRF is significantly lower transmit power with a maximum power output of 1mW. If you are planing to transmit on HF, or even VHF this will be extremely limiting on its own. You would need an amplifier to make much use of it, especially at HF or with a directly attached antenna. By contrast the tx-500 is up to 10 watts, which is still low power (what we call QRP) but usable and much more powerful than one milliwatt.

Second the TX-599 is designed specifically for HF frequencies of 1.8 MHz to 50 MHz (160 meters to 6 meters). The HackRF has a wider frequency range of 1 MHz to 6GHz.

Finally the TX-500 is designed to be a standalone unit for field operation. No need for a laptop (though it can connect to one). You can operate it entierly from the unit. HackRF requires a computer so not well suited for field work or mobile.

@Eris

I said be specific. What exactly do I want to change about how they view data that makes me socialist? I have mostly proposed they follow multiple independent studies of high quality rather than relying on some master list from the CDC/CNN.. that would seem to be the opposite of communist thinking.

@special-boy @swiley

@Eris

Be specific, what socialist solution did I even promote?

@special-boy @swiley

@Eris

CNN, like Fox and most news organizations are in no way factual sources. Most people are idiots, most people dont know the subject, so no... thats the problem, the very problem the OP is pointing out. That uninformed morons who dont look at the actual studies need to shut the fuck up because they dont know what they are talking about.

I frame it at anti-vaxers because they are literally 100% of the people I hear and see doing this in my feed. I have no doubt CNN does it from the other end but I dont watch them or have any exposure to that nonsense.

@special-boy @swiley

@Eris

Absolutely yes, in fact most studies will only use double-blind data for exactly this reason and will not incorperate the doctor's opinion at all. In fact the doctors opinion when present is purged from the data set the researchers can even see to ensure its double-blind.

@special-boy @swiley