K7QO Superhetrodyne Tutorial Videos and Lab Information

K7QO Superhet Tutorials

A great set of videos and reference material with both very practical and  theoretical details.

http://www.k7qo.com/

Ham Fair Tokyo 2018 Videos

Ham Fair Tokyo 2018 Videos

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Alinco Booth
https://youtu.be/t-l6h40Ajco

AOR Booth
https://youtu.be/afdsxK9tzIE

ICOM Booth
New IC-9700 looks like replacement for IC-9100
New AI Rig control Via Smart Speaker
https://youtu.be/EgfwG7OCZMg

Yaesu Booth
https://youtu.be/j-Cjabsm-wA

Folded Dipole Analysis G3TXQ

Folded Dipole Analysis

G3TXQ

http://www.karinya.net/g3txq/folded_dipole/

The Design of Transmitting Aerials for Broadcast Stations

The Design of Transmitting Aerials for Broadcast Stations
April 1929

http://bbceng.info/additions/2016/Eckersley%20Aerial%20Design%201929.pdf

BBC Engineering Training Manual: Early Broadcast Microphones

Technical Data and Sound Theory
----------------------------------
Not modern mics but interesting
for early history of broadcasting.

BBC Engineering Training Manual

MICROPHONES
By the Staff of the
Engineering Training Department
British Broadcasting Corporation


http://bbceng.info/additions/2016/BBC%20Engineering%20Training%20Manual%20-%20Microphones%20(WW).pdf

Portable Operation and Battery Capacity

How Much Battery Do You Really Need?

Chris Warren   August 12, 2018 

http://offgridham.com/2018/08/how-much-battery/

Decoding a Moon Orbiting Satellite 378500 km’s away with an RTL-SDR

Decoding a Moon Orbiting Satellite 378500 km’s away with an RTL-SDR

https://www.rtl-sdr.com/decoding-a-moon-orbiting-satellite-378500-kms-away-with-an-rtl-sdr/

Transmission Line Theory

Transmission Line Theory

http://users.cecs.anu.edu.au/~Gerard.Borg/engn4545_borg/transmission_lines/transmission_lines.html


Derivation of Transmission Line L and C
=========================================

http://pcwww.liv.ac.uk/~awolski/teaching/liverpool/phys370/advancedelectromagnetism-part6.pdf

DIY Satellite Tracker/Radio Telescope

DIY Satellite Tracker/Radio Telescope

NOAA Satellite Antenna Positioning
====================================
Part 1
https://youtu.be/NsY76tI2Vus


Part 2
https://youtu.be/smWwjiOIAYI

Small transmitting loop (STL) antenna that covers at least the 80 and 40 meter bands

Small transmitting loop (STL) antenna that covers at least the 80 and 40 meter bands

Nice technical details and ideas.
https://www.nonstopsystems.com/radio/frank_radio_antenna_magloop.htm

3D printer applications for Ham Radio: SM0VPO

Lot's of interesting projects at http://www.sm0vpo.com/

There are also some 3D printer applications for Ham Radio.

3D DENCO COIL SUBSTITUTE
by Harry Lythall - SM0VPO

A SI5351 VFO-BFO UPDATE 9/15 9/16 9/21 11/15/17 by KV4QB

A SI5351 VFO-BFO UPDATE 9/15 9/16 9/21 11/15/17 by KV4QB

https://kv4qb.blogspot.com/2017/09/a-si5351-vfo-bfo.html

Dayton Hamvention Antenna Summary

http://www.k3lr.com/Dayton/

Wago 221 Bare Wire Connections

Wago 221 SERIES LEVER-NUTS® The Way to Connect!

Compact Splicing Connectors

https://www.wago.com/media/content/221/downloads/usa/221_brochure.pdf

Connect any combination of solid, stranded, and flexible copper wires.