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How to tell if you have a bad NanoVNA

How to tell if you have a bad NanoVNA

This was a fun journey/project to play with and I learned a lot. Let me share the journey with you and how you can tell if your Nano is good or not.

👉 The Trusted Source for NanoVNAs is R and L electronics in Ohio: https://bit.ly/3q3OHdN
👉 Firmware Update for NanoVNA-H: https://github.com/DiSlord/NanoVNA-D

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0:00 Intro
0:56 Touch Screen Problems
4:05 Sweep an Antenna
5:30 Comparing against a Good NanoVNA
7:20 Firmware Update #3
9:45 Switches to Center Mode?
10:38 Physical Comparison
13:24 Test Dummy Load on the K9WEN Unit
14:24 NanoVNA Test Procedure
19:00 Bad NanoVNA
22:33 Conclusion
23:19 Thanks for Being Awesome!

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Temporarily Offline Youtube

Is this the Final Build? AA-30.Zero 3D Build – Arduino Based Antenna Analyzer

Is this the Final Build? AA-30.Zero 3D Build - Arduino Based Antenna Analyzer

Let’s put it together – 3d Printing, Antenna Analyzer, Arduino.

Parts:
👉 Keypad: https://amzn.to/3jAE4v1
👉 Arduino: https://amzn.to/3CdxOAA
👉 LCD Display: https://amzn.to/2Zl0CIK
👉 Dupont Wires: https://amzn.to/3vKKKLZ
👉 AA-30.Zero: https://www.dxengineering.com/parts/reu-aa-30zero
👉 3d Case: https://www.thingiverse.com/thing:5030342

GitHub Repo: https://github.com/TemporarilyOffline/AA-30.Zero
Dude’s video: https://www.youtube.com/watch?v=t717p3Utgi4

Here’s how my pins worked out:

byte rowPins[ROWS] = {11, 10, 9, 8};

byte colPins[COLS] = {6, 5, 3, 2};

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Temporarily Offline Youtube

Brand New Raspberry Pi Zero 2 W – Quad Core Upgrade

Brand New Raspberry Pi Zero 2 W - Quad Core Upgrade

This just came out today, let’s check it out!

🛒 Get Yours: https://www.raspberrypi.com/products/raspberry-pi-zero-2-w/
📺 KM6LYW Youtube Channel: @KM6LYW Radio

#RaspberryPi #KM9G

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#FT8Off for 2021-10-28 – Ham Radio Sprint

#FT8Off for 2021-10-28 - Ham Radio Sprint

This is our weekly FT8 Sprint where we try to make as many contacts as possible in 1 hour. I say "try" because mostly we get distracted and talk about squirrels. Conquer the Bands, but be polite about it!

Rules: https://github.com/TemporarilyOffline/FT8Off
Setup: https://youtu.be/LICe34DjZuo
Scoreboard: http://ft8off.kd2fmw.com/

#FT8Off #hamharder #ThNHR

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TemporarilyOffline
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Temporarily Offline Youtube

Cheap Amazon Balun/Unun Transformer for QRP Radios

Cheap Amazon Balun/Unun Transformer for QRP Radios

I wasn’t looking for QRP, but I WAS looking for all the basics in an easy to buy kit form. Did I win?

🛒Un-Un Kit: https://amzn.to/3B3JZPh
🛒240-43 Toroid Core for 49:1 Transformer: https://amzn.to/3G9xPrx

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Temporarily Offline Youtube

MFJ Quickie – The MFJ-1163

MFJ Quickie - The MFJ-1163

Let’s take a look at the MFJ-1163 and see what makes it tick.

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Temporarily Offline Youtube

Xiegu X6100 – New Features Revealed!

Xiegu X6100 - New Features Revealed!

I saw some new features/updates on the X6100 and I wanted to share them with you!

🛒 Xiegu on AliExpress: https://www.aliexpress.com/store/911368002

📺 Operating Video: https://www.youtube.com/watch?v=mVIZGnyAIkc

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How to fix Broken Knobs on Your Yaesu FT-891 – VR Unit Repair

How to fix Broken Knobs on Your Yaesu FT-891 - VR Unit Repair

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Temporarily Offline Youtube

#FT8Off for 2021-10-14

#FT8Off for 2021-10-14

This is our weekly FT8 Sprint where we try to make as many contacts as possible in 1 hour. I say "try" because mostly we get distracted and talk about squirrels. Conquer the Bands, but be polite about it!

Rules: https://github.com/TemporarilyOffline/FT8Off
Setup: https://youtu.be/LICe34DjZuo
Scoreboard: http://ft8off.kd2fmw.com/

#FT8Off #hamharder #ThNHR
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TemporarilyOffline
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Temporarily Offline Youtube

New Digital Radio for FT8/JS8Call from QRP Labs! – QDX

New Digital Radio for FT8/JS8Call from QRP Labs! - QDX

Check out the new radio kit in town! Details Below.

🛒 Order yours: https://qrp-labs.com/qdx.html

👉 Four bands 80, 40, 30 and 20m
👉 5W output at 9V supply (can be built for 4-5W at 12-13V supply)
👉 Single signal transmission (zero unwanted sideband, zero residual carrier, zero intermodulation distortion)
👉 Solid-state band switching and transmit/receive switching under CAT control
👉 High performance embedded SDR SSB receiver with 60-70dB of unwanted sideband cancellation
👉 Built-in 24-bit 48ksps USB sound card
👉 Built-in USB Virtual COM Serial port for CAT control
👉 Si5351A Synthesized VFO with 25MHz TCXO as standard
👉 Easy to build single-board design, Professional quality double-sided, through-hole plated, silk-screen printed PCBs
👉 All SMD components factory assembled
👉 Connectors: 2.1mm power barrel connector, USB B (for audio and CAT control), BNC RF input/output
👉 Built-in test signal generator and testing tools
👉 Receive current 100mA, Transmit current 1.0-1.1A for 5W output with 9V supply (around 0.7A for 5W with 13V supply).
👉 QFU firmware update for lifetime free firmware udpates, easy installation on any PC without drivers, software or hardware e.g. programmer

👉 Optional aluminium extruded cut/drilled/laser-etched black anodized enclosure

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TemporarilyOffline
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Where possible, all links are affiliate links, this youtube thing is an expensive endeavor and every little bit helps.