Interesting Links

This Bulletin page will continue to grow with input from members and contributors as needed so check it from time to time for updates. New content will be inserted at the top.

Share an interesting site with others by sending a link and a brief comment about it to editor@emdrc.com.au

(PS. Got a cool picture that could be the bookmark for this page, send it in – jpg preferably.)

__________

__________

Tom, VK3FTOM sent this link in:

RSGB 2019 Convention lecture: The future and growth of amateur radio

https://www.youtube.com/watch?v=wnZY4vgThOA&feature=youtu.be&fbclid=IwAR0UZYi6gv6Jfg_mHgsRRSUBuf8sXXbd3kA0w9IgWqVx1eba_T6DjYgZ6nQ

__________

John, VK3JO sent these links in-

A very interesting link to an inexpensive SDR Radio Project to go with an Existing PC or Laptop.

https://www.instructables.com/id/A-Software-Defined-Radio-on-a-Shoestring/

This link contains many hypertext links to Data, Drivers, Main Program etc.

In particular the quick start guide to SDR dongles relating  to this project..

https://www.rtl-sdr.com/buy-rtl-sdr-dvb-t-dongles/

__________

Chris, VK3QB, sent in this link:

Ian VK3BUF has produced a short and instructional video illustrating how ferrites can be used to reduce QRM in your shack.  It accompanies his article “The Truth about Ferrites” – read it here

https://qrm.guru/the-truth-about-ferrites/

You can view the video here

https://qrm.guru/the-effectiveness-of-ferrites/

Our QRM Kits are back in stock…  check them out here

DF Loops kits and ferrite kits

https://qrm.guru/category/qrm-kill-kits/

and…

Ian – BIG congrats – “The Truth about ferrites” with 736 views. Most visited page on the GURU.

https://www.dxzone.com/dx33897/qrm-guru.html

__________

The RASA Welcome to Amateur Radio guidebook provides an introduction to our hobby for newly licenced Foundation class amateurs.

The book is published digitally.  It contains many hotlinks to external websites with useful information.

It is available as an Acrobat pdf file suitable for reading on a PC or tablet.  It can be printed if required.

It is also available as an eBook for the Kindle, Nook and Kobo readers as well as the Apple Books app.

Download here:

https://vkradioamateurs.org/welcome-to-ar-guidebook-for-newcomers/

__________

John, VK3PZ sent in this one:

“Manny told me this story a few years ago, not sure how many members know.’

The sinking of the Monte Palomares-

http://maritimeradio.org/in-distress/1966-monte-palomares/

__________

Alan VK3AJH sent in this link re the UK CODE OF PRACTICE for the installation of mobile radio and related ancillary equipment in land based vehicles here:

__________

Paul, VK3HN, has a very nice site and some very interesting videos of his work on homebrew, QRP, maker etc. A nice little dipole article for an ‘isolation’ project in these times too. Check Paul’s site at:

https://vk3hn.wordpress.com/category/homebrew/

and some nicely done videos a: https://www.youtube.com/channel/UCJS-RCJIkCgLLj3xAkEicWQ/videos

__________

Want to close the eyes and just listen? Amateur Radio Podcasts may help.

Martin VK3TMP.

(For those who are not familiar with podcasts, they are in essence (usually) a pre-recorded audio stream that you can listen to on your computer, ipad, tablet or phone. The best way I think to listen is when downloaded to my iPhone when at home – but you can stream them also on the phone etc if you have mobile data enabled. But when to listen? Walking the dog, riding the train, driving are my favourites. Earbuds when walking allows some ambient noise to come through and bluetooth when driving – so much better than the majority of radio choices, especially when travelling long distances. 

Many of the podcasts listed have useful websites and social media links and some even video stream – not a good idea when driving hi. This first site for example allows download or play via different options based on your preferred technology.)

Let me know of your favourites and I’ll add them.
A couple of my favourites:

Ham Radio Workbench – 

http://www.hamradioworkbench.com

This Ham Radio podcast deep dives on making, DIY, electronics, and technical topics of interest to the amateur radio operator.  Your hosts George KJ6VU and Jeremy KF7IJZ discuss current developments in ham radio while introducing listeners to a plethora of topics and skills such as test equipment, 3D Printing, Arduino, Raspberry Pi, and more.

A couple of recent dives I enjoyed in particular are:

HRWB083-Magnetic Loop Antennas

HRWB082-Software Defined Radio Software

Linux in the ham shack-

https://lhspodcast.info

A range of interesting topics often Linux centred but certainly not always

LHS Episode #301: Pi-Star Deep Dive Part 1

__________

Mark. VK3MD, forwarded on this link:

I use this site a bit for work. It has a good Advanced search tool.
https://maprad.io/au

__________
Jim, VK3ZKK, thought these would be of interest to readers. Thanks Jim, very handy indeed!

If you want to repair equipment with SMD components or salvage useful active SMD parts from printed circuit boards you will want to identify them.
SMD devices are too small to print conventional semiconductor type numbers onto so device packages are marked with a two or three character ID.
It is possible to identify the manufacturers’ type number by searching through numerous databooks.
This URL lists over 3,400 device codes in alphabetical order together with type numbers, device characteristics, equivalents and pinout.
https://www.sphere.bc.ca/download/smd-codebook.pdf

This URL has a 1,060 page databook of  SMD components
http://caxapa.ru/thumbs/588912/smd-codes.pdf

The two databooks can be saved to your computer as a PDF file for future reference or searched when required.

__________

Nicely shown video for 80-10m end-fed – https://www.youtube.com/watch?v=RsgdcHeP6S0

and also a link to https://youtu.be/BpdpkUEW39o

Darrin VK3VDP.

__________

Eric, VK3EAC, sent in this lot – Perhaps the following YouTube  channels may be of interest:

Trx bench: www.youtube.com/channel/UClqWe58x9q6jx61gB16731A

Mr Carlson’s lab:  https://youtu.be/qqmegXoB7lA

The radio shop:  www.youtube.com/channel/UCHJpeSrEjtVk1YtRU3FrpQQ

Kevin Loughim: www.youtube.com/user/loughkb

http://websdr.ewi.utwente.nl:8901/m.html  is fascinating to hear what hams can hear in Europe. The whole of the HF frequency spectrum is covered and AM, SSB and CW modes can be selected. It was interesting to see/hear the activity during a recent contest. Then the “Long wave” broadcast band can be received on AM – try 198 kHz.

__________

NASA At Home

https://www.nasa.gov/specials/nasaathome/index.html?fbclid=IwAR2s4gTcPZep2EUtGhkTXsfR67vvpxrgOZifKMoS3JIxabZRHO_-nHg7Nnk

__________

European ham with some good tips on using JS8 mode.

__________

Bob VK3AIC

Have been looking around and found a series on YouTube by M0MCX.

The title “STOP Before you buy an ATU Antenna Tuning Unit for Ham Radio”. It goes for about 18 minutes. Worth having a look.

https://www.youtube.com/watch?v=zhsXIyq64Wc

___________

Interested in CW? Don’t let this scare you. 

https://youtu.be/zceZ2-6TDdc

Slower speed demo’s also available by the author

Martin VK3TMP

__________

John VK3PZ dug this one up…

http://maritimeradio.org/in-distress/1966-monte-palomares/

__________

Very Low Frequency submarine comms from David, VK3RU

https://interestingengineering.com/the-radio-network-that-allowed-communication-with-submarines

_______________________

Regards Ed.