Tom, WB9YTG, wants to know how accurate digital multimeters are? He has a power supply that tests 13.8 vdc on one meter and 14,0 on the other. Let’s take a look at the inaccuracies and whether they matter in ham radio.
#astron #kobalt #DMM #digitalmultimeter
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Edited by Aidan Jakeman
To learn more about me, visit: https://dcasler.com/home/
To support my channel financially: https://dcasler.com/support (offers several options)
To pose an Ask Dave question: http://www.dcasler.com/ask-dave/ or http://www.ke0og.net/ask-dave/
Theme music is "Sour Tennessee Red," by John Deley and the 41 Players, courtesy YouTube Music Library. You can listen to the entire song here: https://youtu.be/Vfc9sAQjJtc
I use drawings from OpenClipArt.org, including the "walking man"
Technician training videos, see http://www.ke0og.net/training/
General training videos, see http://www.ke0og.net/general/
Amateur Extra training videos, see http://www.ke0og.net/extra/
Thanks to my sweet wife, Loretta, KBØVWW, for both audio and video assistance! (Her website is www.aldea-art.com.)
My primary website: http://www.dcasler.com
The ham radio part of my website (direct link): http://www.ke0og.net
My publishing website: http://www.mtsneffelspress.com, where you can find my fantasy and science fiction books.
My Amazon author page, which lists my print and Kindle books: http://www.amazon.com/-/e/B00471I0Q4.
A big thanks to the Huntsville Amateur Radio Club for having a fully stocked and usable test bench. Couldn’t have done it without them: https://harc.net/
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I promise you, you will understand this. Do not be put off just because it’s maths. This is a simple puzzle. If you can’t understand Ohms Law previously, then try this video – or your money back! Kind Regards, Callum (M0MCX).
More videos on Ham Radio (Foundation) Training here: https://youtube.com/playlist?list=PLcC64tNkZB7xvc3rHlpqqCkiBdAzYe8cf
More videos:
https://youtube.com/playlist?list=PLcC64tNkZB7zFt6NV9fnnde2lP11fUTQ8 Antenna Modelling
https://youtube.com/playlist?list=PLcC64tNkZB7xtKohJRipVLQ6rxYzRP8eq Tips and Tricks
https://youtube.com/playlist?list=PLcC64tNkZB7xwhA0Msm_bNT4CQ_Bj5D4c Antennas
https://youtube.com/playlist?list=PLcC64tNkZB7wc6svNLY7IDthw1YCFNq9W Live Streams
https://youtube.com/playlist?list=PLcC64tNkZB7w9dp9Eqg_UhamrY5Ck3dyX My Stuff
https://youtube.com/playlist?list=PLcC64tNkZB7xvc3rHlpqqCkiBdAzYe8cf Ham Radio Training
Steve KM9G joins us tonight on the HRCC to give us his pro tips on radio kit building. Steve is a Youtube creator that makes ham radio and vintage computer videos. You can find him here: https://www.youtube.com/c/temporarilyoffline
Let’s help out a friend of Roly: https://gogetfunding.com/ham-radio-for-papua-new-guinea/
Links from the show:
Great antenna for tiny radios? https://amzn.to/3QlNbhF
truSDX: https://dl2man.de/where-to-buy-trusdx/
SW-3B: https://www.venus-itech.com/product/sw-3b-qrp-cw-transceiver/
FX-4C: https://www.ebay.com/itm/384266219628
Mountain Toppers: https://www.lnrprecision.com/mountain-toppers/
QCX Mini: http://www.qrp-labs.com/qcxmini.html (not tested)
truSDR mini radio (No good to links, not recommended)
My favorite HT antenna is the Signal Stuff Signal Stick: https://signalstuff.com/?ref=622
(This is an affiliate link)
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Theme and background music courtesy of https://www.bensound.com
Keifer, KJ7LYB, Has two radios an Icom IC 718 and an Xiego G90.Both of the antennas are sending RF back into his Icom IC 718. Interestingly his Xiego G90 is unaffected by the RF. Watch to learn what might be happening to his antenna?
#RFI #radiofrequencyinterference #icom716 #g90
Subscribe: https://youtube.com/user/davecasler.
Giveaway Info: http://dcasler.com/giveaway/
Edited by Aidan Jakeman
To learn more about me, visit: https://dcasler.com/home/
To support my channel financially: https://dcasler.com/support (offers several options)
To pose an Ask Dave question: http://www.dcasler.com/ask-dave/ or http://www.ke0og.net/ask-dave/
Theme music is "Sour Tennessee Red," by John Deley and the 41 Players, courtesy YouTube Music Library. You can listen to the entire song here: https://youtu.be/Vfc9sAQjJtc
I use drawings from OpenClipArt.org, including the "walking man"
Technician training videos, see http://www.ke0og.net/training/
General training videos, see http://www.ke0og.net/general/
Amateur Extra training videos, see http://www.ke0og.net/extra/
Thanks to my sweet wife, Loretta, KBØVWW, for both audio and video assistance! (Her website is www.aldea-art.com.)
My primary website: http://www.dcasler.com
The ham radio part of my website (direct link): http://www.ke0og.net
My publishing website: http://www.mtsneffelspress.com, where you can find my fantasy and science fiction books.
My Amazon author page, which lists my print and Kindle books: http://www.amazon.com/-/e/B00471I0Q4.
I visit Dinosaur Valley State Park and explore Fossilized Dino Tracks, meet some Archeologists, and do a Parks on the Air Activation. Packtenna Linked EFHW with the K8MRD mod and Icom 7300.
Consider becoming a Patron @ https://www.patreon.com/k8mrdradiostuff
Follow me on Twitter. https://twitter.com/k8mrd
00:00 – Sting
00:03 – Welcome to Dinosaur Valley State Park
01:12 – Getting into 4×4
01:20 – Blue Hole
01:54 – Types of Dinosaurs and their tracks
02:31 – Hiking down to the river
02:52 – Blue Hole
04:24 – A real living Dinosaur
05:02 – First Dinosaur Tracks
06:15 – Ballroom Track Site
08:05 – Heading to the Taylor Track Site
09:18 – Taylor Track Site
09:36 – Archeologists tell us about the site
15:54 – Heading back
16:25 – Let’s do the DinoPOTA!
21:45 – Emotional Damage
24:06 – POTAsaurous Results
24:18 – Super Awesome K8MRD Radio Stuff Jingle
K8MRD Radio Stuff Shirts:
Happy Skull Guy: https://grapevineamateurradio.com/collections/youtubers-bunch/products/k8mrd-radio-stuff-t-shirt-special-order
Tower of Terror: https://grapevineamateurradio.com/collections/youtubers-bunch/products/k8mrd-radio-stuff-tower-t-shirt-special-order
Affiliate Links to a bunch of stuff I use:
~~~5% off RigExpert Analyzers at Gigaparts~~~
***Use Code HRMR at checkout for discount to apply***
https://www.gigaparts.com/nsearch/?lp=HRMR
~~~5% off Comet Antennas at Gigaparts~~~
***Use code K8MRD***
https://www.gigaparts.com/nsearch/?lp…
~~~5% off PO4Power Batteries at Gigaparts~~~
***Use code HRM4 at checkout***
https://www.gigaparts.com/nsearch/?lp=HRM4
~~~5% off Messi & Paoloni Coax at Gigaparts~~~
***Use Code HRMM at checkout***
https://www.gigaparts.com/nsearch/?lp=HRMM
***Order Direct from M&P***
Use code K8MRD for 5% off.
https://messi.it
~~ 5% off Genasun products at Gigaparts
~~~~~Use Code MKGS at Checkout~~~~~
https://www.gigaparts.com/nsearch/?lp=MKGS
~~~$15 off most purchases over $65 at Radioddity:
http://radioddity.refr.cc/mikedahlhofer
~~Amazon Links~~
Icom IC-705: https://amzn.to/3nISk6S
Icom IC-7300: https://amzn.to/3rBdQeT
Yaesu FT-891:https://amzn.to/2XaTkof
Xiegu X5105: https://amzn.to/2U4jrtM
Xiegu G90: https://amzn.to/30fszPD
Bioenno BLF-1203W: https://amzn.to/3bXsRhP
Bioenno BLF-1203AB: https://amzn.to/39OAW74
Bioenno BLF-1206A: https://amzn.to/2XaWQ1L
Bioenno 20AH LiFePO4 Battery: https://amzn.to/2XfZPWT
Bioenno 12AH LiFePO4 Battery: https://amzn.to/2WHU9kp
Bioenno Charge Controller: https://www.bioennopower.com/collections/solar-controllers/products/12v-24v-20a-solar-charge-controller-for-lifepo4-batteries-sc-122420jud
Hi-Tec Battery Charger: https://amzn.to/2YARsSt
Rich Solar 100 Watt Panel: https://amzn.to/3enp4vD
Carhartt Lunch Box: https://amzn.to/2xQfbGO
Shakespear 20′ Wonderpole: https://amzn.to/2Rd9IiG
Powerwerx Power Pole Crimping Tool: https://amzn.to/3eDbpSo
Powerwerx Power Pole Distribution Block: https://amzn.to/2WHI3Ym
Powerwerx Volt Meter: https://amzn.to/2IG8AAw
Ailunce HD1: https://amzn.to/35HqBYZ
Baofeng UV-5R: https://amzn.to/2Ot3NX7
Tactical Backpack https://amzn.to/2k6jya7
Condor Rip EMT Pouch: https://amzn.to/2XjLUPG
iPad mini Bluetooth Keyboard: https://amzn.to/2IOtI7o
Red Rock Outdoors Sling Pack: https://amzn.to/2FdCKdf
Portable Operating for Amateur Radio Kindle: https://amzn.to/2X3I7EU
Portable Operating for Amateur Radio paperback: https://amzn.to/330xW7J
I may make a small commission on purchases made through the links above.
Micro, Milli, Kilo, Mega and Giga. We don’t normally write 132,000 Volts (for instance), instead we write 132kV or 132mV or 132uV or even 132MV. What are these symbols and how do we use them? This is the International System of Units which is the world’s most widely used system of measurement and today we cover micro, milli, kilo, Mega and Giga.
More here: https://en.wikipedia.org/wiki/International_System_of_Units
Regards, Callum, M0MCX
More videos:
https://youtube.com/playlist?list=PLcC64tNkZB7zFt6NV9fnnde2lP11fUTQ8 Antenna Modelling
https://youtube.com/playlist?list=PLcC64tNkZB7xtKohJRipVLQ6rxYzRP8eq Tips and Tricks
https://youtube.com/playlist?list=PLcC64tNkZB7xwhA0Msm_bNT4CQ_Bj5D4c Antennas
https://youtube.com/playlist?list=PLcC64tNkZB7wc6svNLY7IDthw1YCFNq9W Live Streams
https://youtube.com/playlist?list=PLcC64tNkZB7w9dp9Eqg_UhamrY5Ck3dyX My Stuff
https://youtube.com/playlist?list=PLcC64tNkZB7xvc3rHlpqqCkiBdAzYe8cf Ham Radio Training
