Weather Satellite Links

 https://www.youtube.com/watch?v=bYpTsersKX8

Weather Satellite Tracking Software Setup

noaa 19 weather satellite:

https://www.n2yo.com/satellite/?s=33591#results

https://oz9aec.net/radios/gnu-radio/dynamic-file-names-in-gnu-radio-companion

https://www.n2yo.com/satellite/?s=33591#results

https://www.rtl-sdr.com/rtl-sdr-tutorial-receiving-noaa-weather-satellite-images/

https://github.com/wb2osz/direwolf/search?q=direwolf.conf

https://gotranscript.com/blog/how-convert-audio-files-vlc-media-player

https://github.com/pfranchini/weather-satellites

https://voiceoverman.wixsite.com/noaam2/setting-up-ubuntu-

https://gloucestercountyarc.weebly.com/w2mmd-vhfuhfsatellite-station.html

http://www.w1hkj.com/beginners.html

https://github.com/wb2osz/direwolf/tree/master/doc

https://www.pe0sat.vgnet.nl/decoding/unix-tlm-decoding/

https://gqrx.dk/tag/satellite

jack links (jack audio)

 https://www.youtube.com/watch?v=fMz6fDGBnA4

Tutorial: JACK Audio Server: Basic Explanation, Install, and Setup

https://github.com/jackaudio/jackaudio.github.com/wiki/WalkThrough_User_PulseOnJack


https://web.archive.org/web/20160314000423/https://64studio.com/quickstart_jack


https://jackaudio.org/downloads/

https://groups.google.com/g/gqrx/c/E8MCXL-N2CY (wxtoimg)

https://voiceoverman.wixsite.com/noaam2/setting-up-ubuntu-

https://www.onetransistor.eu/2017/10/virtual-audio-cable-in-linux-ubuntu.html

https://askubuntu.com/questions/633674/virtual-audio-cable-for-ubuntu

I guess RFM95 is for 915MHz

 here is an instructable:

https://www.instructables.com/Introduction-LoRa-Module-RFM95-RFM95W-Hoperf/

Oh good, 915 is also mentioned in TinyGS:
https://github.com/G4lile0/tinyGS/search?q=915

the RFM915W is based upon the SX1276:
https://www.rocketscream.com/blog/2017/08/21/the-sx1276-modules-shootout-hoperfs-rfm95w-vs-nicerfs-lora1276-c1-vs-hpdteks-hpd13/

interesting:
https://www.youtube.com/watch?v=T3dGLqZrjIQ&t=259s >>>
(references: https://www.youtube.com/watch?v=NoquBA7IMNc (matt knights talk) >> brad osgood fft https://www.youtube.com/playlist?list=PLB24BC7956EE040CD)
https://www.kickstarter.com/projects/sodaq/loraone-the-lora-iot-development-board
https://shop.sodaq.com/sodaq-one-us-rn2903-v3.html (good for flying things)
https://www.youtube.com/watch?v=NoquBA7IMNc (matt knights talk)

About IPFS and typescript link

 https://blog.ipfs.io/2020-10-29-js-ipfs-0-50/

Import vs. Require in Node.js

 https://masteringjs.io/tutorials/node/import-vs-require

FFT and spectrium analyzer

Dr. Brad Osgood FFT Theory Lectures
https://www.youtube.com/watch?v=gZNm7L96pfY&list=PLB24BC7956EE040CD

I may have remembered Dr. Osgood after delving into antennas and buying a bunch of analysis equipment. I first discovered him when trying to ameliorate painful memories of not understanding FFT. I believe I set up something correctly in LabView 15 years ago, ouch, but I lacked the theory to know what I did.

Spectrum Analyzer

LimeSDR full span Spectrum Analyzer
https://discourse.myriadrf.org/t/limesdr-full-span-spectrum-analyzer/6248/5


https://github.com/xmikos/qspectrumanalyzer

https://medium.com/home-wireless/testing-antennas-with-the-limesdr-mini-98b59b99c8b9

set up github push with ssh keys

https://gist.github.com/xirixiz/b6b0c6f4917ce17a90e00f9b60566278

finite element analysis link

 Finite Element Analysis:

https://feaforall.com/

A site I like.

Comment about TypeScript

 I'm learning typescript. I made it all the way through an intro to typescript[1]. Now onto more crazy things. This resource is quite extensive: https://t.co/XjEuuJRvpG?amp=1 .

GitHub

course-zero/getting-started-with-typescript

The source code of examples used in TypeScript lessons on JSPoint publication. - course-zero/getting-started-with-typescript

https://medium.com/jspoint/typescript-module-system-5022cac310f6
https://medium.com/jspoint/typescript-type-declaration-files-4b29077c43
I still need to figure this stuff out. I gets a bit weird when you have libraries that work fine with node but you want them to fit in with your build flow. (edited)

[1]https://www.youtube.com/watch?v=BwuLxPH8IDs

edit (may 11, 2021): tsconfig.json demystified
https://medium.com/extra-credit-by-guild/tsconfig-json-demystified-d8f333e578c1

Turnstile Antenna Musings

https://en.wikipedia.org/wiki/Turnstile_antenna

2 dipoles offset at 90 deg: https://www.antenna-theory.com/antennas/dipole.php

http://www.west.net/~jay/turnstile.html

https://web.archive.org/web/20130728092252/http://w4rnl.net46.net/turns.html

http://www.antentop.org/w4rnl.001/turns.html

add::

https://www.antenna-theory.com/antennas/halfwave.php

1/4 wave antenna:

Make a 1/4 Wavelength Antenna + Calculations
https://www.youtube.com/watch?v=haizSAYquUg

How to Build: Ham Radio 2 Meter Quarter Wave Antenna - K7AGE https://www.youtube.com/watch?v=HkmD3Sgz7Q0

https://www.everythingrf.com/rf-calculators/parabolic-reflector-antenna-gain
https://www.bu.edu.eg/portal/uploads/Engineering,%20Shoubra/Electrical%20Engineering/833/crs-14407/Files/Reflector%20Antennas%20-%20Part%201.pdf
https://www.reddit.com/r/RTLSDR/comments/a1ee6i/a_few_questions_about_turnstile_reflectors_for_a/

#359​ How to properly use a NanoVNA V2 Vector Network Analyzer & Smith Chart (Tutorial)  --- Andreas Spiess   (includes demo kit -- green board)
https://www.youtube.com/watch?v=_pjcEKQY_Tk

https://en.wikipedia.org/wiki/American_wire_gauge
https://www.youtube.com/watch?v=HkmD3Sgz7Q0&t=142s

about antennas:

https://www.jpole-antenna.com/2012/07/03/why-build-antennas-out-of-copper-and-not-aluminum-or-stainless-steel/
https://www.eeweb.com/lets-build-the-yagi-antenna/

Using the NanoVNA to Measure Antenna SWR and Resonance --

joe smith
https://www.youtube.com/watch?v=_drx7ORUDWI

Which NanoVNA Should I buy? - TheSmokinApe
https://www.youtube.com/watch?v=xNNtM_mUAqc


https://www.youtube.com/watch?v=uy4opULxcdg

Broadband RF Amplifier/ Class A RF Amplifier

https://www.youtube.com/watch?v=Drwt9ivQLYY

SBB6950Z 5Mhz-6000MHZ Amplification Transistor//////////////////

https://www.youtube.com/watch?v=dVa9YZ0-24E


https://www.febon.net/products/usb-dtmb-atsc-dvb-t-tx-modulator-generator-transmission

https://febon.blogspot.com/2015/03/power-amplifier-pa-module-for-fpv-first.html

https://www.youtube.com/watch?v=cWDHQppfR38
IMSAI Guy - #581​ Digital Programmable RF Attenuator

https://www.open-electronics.org/hmc624lp4e-rf-signal-attenuator-controlled-by-arduino/

https://hackaday.com/2018/07/21/digital-attenuator-goes-from-manual-to-arduino-control/

http://www.kerrywong.com/2018/07/15/controlling-an-hmc624lp4e-rf-attenuator-using-arduino/

DIY digital RF attenuator
https://www.youtube.com/watch?app=desktop&v=UuKRt2WpNwo

nanoVNA - Coaxial Cable Measurement Methods (Characteristic Impedance and Cable Loss) - VE6WGM
https://www.youtube.com/watch?v=G66_iqOu-Bs

Gregg Messenger VE6WGM

https://www.youtube.com/watch?v=ntE_JyBXeLs

Building a Simple & Cheap 50-Ohm Dummy Load.

Cheap Spectrum Analyzer

https://www.youtube.com/watch?v=geXETa1_JN4

Testing Antennas with the LimeSDR Mini
https://medium.com/home-wireless/testing-antennas-with-the-limesdr-mini-98b59b99c8b9

#91: Basic RF Attenuators - Design, Construction, Testing - PI and T style - A Tutorial  (w2aew ) https://www.youtube.com/watch?v=A5gGeV7CiQ0

$15 Ebay Return Loss Bridge
https://www.youtube.com/watch?v=ct_ZUYTRkOA

RF Bridge
https://transverters-store.com/rf_bridge/rf_bridge.html

How not to damage your NanoVNA when measuring SWR
https://www.youtube.com/watch?v=totwu4IbavE

#568b​ TinySA NANOVNA Measure and Use 30dB Attenuators  --

IMSAI Guy https://www.youtube.com/watch?v=ljJcYFQS9KU

http://www.kerrywong.com/2014/11/16/testing-an-rtl-sdr-spectrum-analyzer/

#564​ NANOVNA Coax Loss Measurement
https://www.youtube.com/watch?v=mU71rGUKlBIa

also interesting...
How to receive and track LoRa Satellites (TinyGS). Incl. innovative ideas for your projects
Abreas Spiess
https://www.youtube.com/watch?v=ltJQjqm5bKA