014 QO-100 How Do We Get 20 Watts Output on 2 4GHz Wi Fi (Part 2)
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- Опубликовано: 1 июл 2024
- Cross-posted video from my main channel (Because it is HAM related)
We will build a satellite station to reach the geostationary QO-100 Amateur Satellite 36’000km away. In the end, I should be able to talk to other amateurs using this ground station.
Newest product links in this video: • 020 QO-100 Update: Fri...
Links:
Adalm Pluto SDR Receiver: amzn.to/3fSQPxk
Pluto+ (better choice): s.click.aliexpress.com/e/_A6C9XX
Amsat DL: amsat-dl.org/en/eshail-2-amsa...
Power Meter: s.click.aliexpress.com/e/_AXkX3X
Better amplifier: www.sg-lab.com/AMP2400v3/amp2...
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You convinced me to do my Ham license with this video. Danke :)
Awesome!
You will never regret doing it but except the XYL to roll her eyes when you start talking about radios
Down the rabbit hole you go. Fun times, though, no regrets on my part. :)
@acul: Good decision!
A great enjoyable video. Love your SDR stuff.
More SDR stuff to come on this channel!
Man, I can't wait for the next episode!! soo cool!
Next week, same channel;-)
LOL Andreas, here we say "there's no replacement for displacement". Regarding that Siglent spectrum analyzer - excellent score on the domestic front, demonstrates superior diplomatic skills!
Unfortunately, I do not understand the meaning of your comment :-(
@@HB9BLA My apologies! The first sentence refers to your remark @11:59. It is an expression we use here in the USA to say the same thing about engine displacement. The second sentence refers to @10:22 and is congratulating you for your skill at convincing your wife of the need for the spectrum analyzer. I'd call that "domestic diplomacy".
Thank you for the insight! Now I understand.
We (really you) are approaching the goal. Very exciting!
Indeed, this is an exciting project. I had to learn a lot!
Apart from super interesting materials ( as allways ), I really like to listen to your accent.
Glad to hear that! The accent is "built-in" and does not need any effort ;-)
SUPER NICE!
Thank you!
just got my ham "Fähigkeitszeugnis" yesterday! only ~50 more years of experience, and ill hopefully be able to make similarly exiting projects
Congratulations! I am sure it will not take such a long time ;-)
Excelent!
Thank you!
Very interesting video. I suspect we will be talking about ERP soon.
I never tried to calculate it. Too much unknown things. On 2.4GHz the opening of the Poty feed is bigger than the diameter of the antenna.
Excellent !
Thank you!
Well put together, Andreas dbm is my favourite db maths.
It is easy because a multiplication becomes an addition...
@HB9BLA Wireless Yes, and it is referenced to a 1 mW.
That spectrum analyzer was cheap compared to the Harley. :D
I'm a retired EE, never worked RF other then susceptibility and emissions for avionics compliance (spent career designing for compliance and doing the shake-bake tests). Very deep notches in the COMM bands for emissions. And very high susceptibility levels for HIRF compliance.
I worked for Collins radio.
Always learning new things from your channel, Thank You!
Indeed, these instruments became affordable. I already see that more DIY antennas are built because people see now if they perform.
We had Collins Radios during my military service, of course :-)
When I did my apprenticeship in the late 70's, 0dBm=1mW into a 600 ohm load. Back then this was the impedance used for telecommunication systems. Not sure what the effect is on 50 ohm systems, but if you aren't looking for voltage or current values, it probably doesn't matter.
0dBm is still 1mW independent of the impedance. The voltage probably was a little higher on a 600 ohms line...
One other difference between the spectrum analyzer and the power meter is that the power meter will give you the total power over the measurement range, including harmonics and any other spurious signals. Not surprising to see it giving a higher value! Anyway, looking forward to the next episode
I agree.
continue👌
:-)
Great video. A minor point, I would try not to put to much weight on the N-type connector that is on the front of your spectrum analyser. I have seen those become intermittent with a setup like the one you used with the 2W and the 20W attenuators, maybe a support of some sort? You could put some plywood under the spectrum analyser to extend the shelf out and then use some small pieces of wood to supports it.
Very valid point!
I have repaired more than one instrument/device ( not N-connector though ) where the physical load of connected devices made internal soldering connections go bad. Use a short pigtail if in doubt. If necessary it can in many cases be calibrated to "disappear".
You are right, of course! I will not do it anymore. This Siglent is one of my most expensive instruments and I do not want to loose it!
Excellent episode Andreas, really apreciate your channels!
You should ve taken a look at SG-Labs from Blgaria , he makes suited amps for qo100 and the Puto for 138€... and I suppose far better quality than the stuff from Ali.
I m using the terrestrial one as i not only tend to use the stuff for qo100 only. (That one is not on the webpage) I am still good enough, just below Leila with around 12W Pout and my 80cm dish. Btw using his transverter as well).
73
Felix
I changed the link in the description to the SG-labs amplifier. It is much better, you are right!
Hello Andreas, this video brings you near the quality of W2AEW. I'm not a ham, though, but always impressed, how you do complicated projects with simple means. I also learnt a bit of Schwizerdütsch, it's obviously very different to German. "auf Zusehen hin" first meant to me that the communication authority first made a visual inspection of your setup, but it just means 'provisional'. Very non-bureaucratic indeed. What technical skills do they need to give the approval on such scarce information? And the term 'allfällig' is also really nice.
Indeed, Swiss German has lots of very different words. Many coming also from French: Pneu=Reifen, Trottoir=Gehsteig, Balance=Lenker etc.
👍
:-)
...and now I want a spec-an... :-)
:-))
Do you have a link to the RF Power Meter with the English language software.
Thanks again.
I added a link to the description. No links allowed here anymore :-(
@@HB9BLA Thanks again.
Is this community Q0100 also covers South East Asia?
It’s footprint stops in Pakistan if I remember right.
it was already hard to convince the wife to get the permission to buy this one 🤣🤣🤣🤣🤣🤣🤣🤣🤣🤣
I guess most of tinkerers and guys or gals with too many hobbies have a caring and understanding wife / husband / significant other. Kishon describes his as "die beste Ehefrau von allen" (the best wife of all)..
My wife knew me when she married me. So she usually is not surprised when new packets arrive ;-)
Same to me 😂
If those power transistors get broken the dust will kill you Beryllium Oxide.
I do not hope that they release this oxide. So far I am still ok :-)
What happened to the finger?0
A bicycle accident...
放大器==amplifier
Thank you!
tell your wife it was worth it.. (from a secret admirer)
I will tell her!