LH0ezVT

joined 1 year ago
[–] [email protected] 6 points 14 hours ago

Same, man. I like it, from the meditation-like state when you take it serious to the gun goes bang part when you are just messing around. But some of the people, man... Where do I start.

I think I should go again regardless, if everyone with wane opinions leaves, that would be surrendering.

[–] [email protected] 2 points 1 day ago

As a rule of thumb, everything Japanese is expensive but rock-solid. Chinese stuff is hit or miss, don't buy if you are not willing to put in some research. So, great beginner radio.

[–] [email protected] 1 points 1 day ago

Hah, is that a challenge?! Because I will totally try, fail, and proceed to tell myself that tarps are overrated anyway.

[–] [email protected] 5 points 1 day ago (1 children)

If I cannot think of a word in my mother language, I see if I can think about it in English, and then put it into an online dictionary to get the mother language synonyms. Works pretty often.

[–] [email protected] 34 points 1 day ago (2 children)

I found a bug by slacking off.

Without details, there was a product that we were supposed to test before it hit mass market. It had an annoying bug where it would forget certain configuration items, seemingly at random. Nobody could reproduce it.

Until me and my friends decided that this was the perfect opportunity to slack off, and took a >1h lunch break ("can't be online on teams, I'm testing..."). As it turns out, the product goes into deep standby after >30 minutes. Official break time was 30 minutes. So if you take the break on the dot, it will never go to deep standby, and never forget its configuration.

So, we figured out the bug by taking a long-ass lunch break.

[–] [email protected] 12 points 1 day ago

Imperialism is good if the other team does it? Come on.

Besides, nobody was going to attack Russia. 1. they have nukes, 2. everyone who tried in the past has lost due to geographic and military realities, 3. they were supplying (and still are!) lots of fossil fuels to Europe, and 4. they have nukes.

All other recent conflicts near european Russia like Georgia, Moldova (both Russian imperialist aggressions) and Yugoslavia (it's complicated) were limited, minor skirmishes on more or less neutral territory. Hardly a threat to Russia as a nation or even its role in Europe.

[–] [email protected] 4 points 1 day ago

I think the key word is "practical". Both the mainland and Taiwanese governments are not stupid, they know they have to acknowledge the status quo for day to day business like customs and immigration.

[–] [email protected] 1 points 1 day ago

If you are cheap like me, you can use a normal head torch and hold it in your almost-closed fist, that reduces the blinding a lot and you can control how much light you want

[–] [email protected] 5 points 2 days ago* (last edited 2 days ago) (2 children)

Mine is a small mokka/Turkish coffee pot with a removable handle. On a recent trip, someone bought a portable espresso thingy and it was a really nice alternative to the bottom-of-the-shelf cheap instant coffee we had otherwise. But to be honest, non-terrible instant coffee is fine for me, just don't get the ultra cheap crap.

At the end (or rather beginning) of the day I settle for "hot, caffeinated, does not make me want to spit it out". I'd rather drink the shitty cheapest possible instant coffee on a cool trip with nice people than the other way round.

[–] [email protected] 9 points 2 days ago (9 children)

Coffee. If you are a coffee drinker, get a way to make half-decent coffee.

Or tea, or hot chocolate if you hate caffeine. Nothing beats the feeling of a hot cup of something after a short, noisy, miserable night.

[–] [email protected] 3 points 2 days ago (2 children)

Counter argument: be unprepared and ready to improvise. I swear half the fun is just zip-tieing random stuff together late at night in the light of your phone torch.

[–] [email protected] 3 points 2 days ago

This. You need high conectration deet or icardin, and you need to basically rub it all over your exposed skin and clothes. Then it works quite ok.

The best method is to apply bug spray and make sure someone else in your camp does not use bug spray. I swear the fuckers take the path of least resistance.

 

cross-posted from: https://sh.itjust.works/post/34507515

How do you test your antenna idea? Well, our approach was to get a portable network analyzer that can show received dBm, put a commercial antenna on it, and strap the whole thing to a PVC pipe (for insulation and to get repeatable height). Then, zip-tie a cough drop to the PTT of a walkie talkie set to low power, so that it transmits continuously.

Now you can walk around your contraption with your Drain Pipe of RF measuring, and get a (rough qualitative) idea of how the pattern looks like. Much to my surprise, it actually worked.

 

How do you test your antenna idea? Well, our approach was to get a portable network analyzer that can show received dBm, put a commercial antenna on it, and strap the whole thing to a PVC pipe (for insulation and to get repeatable height). Then, zip-tie a cough drop to the PTT of a walkie talkie set to low power, so that it transmits continuously.

Now you can walk around your contraption with your Drain Pipe of RF measuring, and get a (rough qualitative) idea of how the pattern looks like. Much to my surprise, it actually worked.

15
submitted 3 months ago* (last edited 3 months ago) by [email protected] to c/[email protected]
 

Picture from a hike back in January. I need to go outside more often ;)

 

cross-posted from: https://sh.itjust.works/post/29055031

My first magnetic loop for 2m :)

Really simple construction: bent ca. 2mm brass pipe soldered directly to the outside of an SMA plug, inside of the plug soldered to the red wire as "input coil". Tunable by squeezing the ends more or less close together.

SWR of <1.2 at resonance, not bad. Impedance is at roughly 44+j2 Ohm, also not bad for totally eyeballing it without any prior calculations.

I can reach the nearest 2m relais just fine at 2W, although to be fair I can do the same with a short whip antenna. More testing to follow. Holy shit, this actually works!

 

My first magnetic loop for 2m :)

Really simple construction: bent ca. 2mm brass pipe soldered directly to the outside of an SMA plug, inside of the plug soldered to the red wire as "input coil". Tunable by squeezing the ends more or less close together.

SWR of <1.2 at resonance, not bad. Impedance is at roughly 44+j2 Ohm, also not bad for totally eyeballing it without any prior calculations.

I can reach the nearest 2m relais just fine at 2W, although to be fair I can do the same with a short whip antenna. More testing to follow. Holy shit, this actually works!

 

It will widen your horizon, they said. And here I was, foolishly thinking I could get away with half-assing statistics during my degree.

 

Turns out the status quo of Linux memory management somehow works pretty damn okay, nobody seems to really know why, and nobody cares.

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