Testing & Programming: Inside the Tech Unboxing! #shorts
Unboxing the RA-87 to verify hardware and test functionality. From 40-watt output checks to confirming the integrated serial-to-USB programming cable, here is the complete teardown and setup process.
👉 Full Video: https://youtu.be/5FWZ1L3b5wY
Today’s Patient:
👉 My list of refurbed rigs: https://temporarilyoffline.com/blogs/tos-blog/revolving-list-of-for-sale-items
👉 Or Get One New: https://go.temporarilyoffline.com/im1jzs
The City Of Cerritos Vs My Ham Radio Antenna - A Small Update
A quick follow-up to answer many of the questions I received at the Huntsville Hamfest. The city did send a follow-up letter after I spoke to them about PRB-1.
My intro to Amateur Radio pamphlet is here: https://www.patreon.com/posts/126015747?utm_campaign=postshare_creator
The Coolest Ham Radio Gear:
As an Amazon Affiliate I earn from qualifying purchases
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📻 My new favorite beginners Radio – Baofeng Mini: https://www.radioddity.com/products/baofeng-uv-5r-mini?ref=bkobuwhc
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$15 off at Radioddity when you use the code JOSHNASS https://www.radioddity.com/?ref=bkobuwhc
📡 My Favorite ham radio portable gear items! Check out Gigaparts for 2x the points off the gear I use the most!
https://www.gigaparts.com/nsearch/?lp=JOSH
📡 My favorite Handheld radio antenna is from Signal Stuff Signal Stick https://signalstuff.com/?ref=622 (This is an affliate link)
📡 I recommend the Ed Fong J-Pole? https://www.kbcubed.com/DBJ-2H-Amateur-Ham-2m-70cm-Dual-Band-Portable-Rollup-Antenna-by-Ed-Fong-p406009746
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📡 Chameleon Antennas make the most robust antennas on the market, check them out here: https://chameleonantenna.com?bg_ref=99VqhYXETt
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David, KO4RNT, wonders just how a toroid can work as a transformer. Well, that certainly is an intresting question. Let’s see how deep Dave dives!
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Videographed and Edited by Heidi Kulbeth
#amateur radio
#ham radio
#technician license
#general license
#extra license
#ham radio training
#ke0og
#dave casler
#ham radio answers
#icom 7300
#antenna
#dipole
#end fed dipole
#mag loop
#magnetic loop antennas
To learn more about me, visit: https://dcasler.com
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To pose an Ask Dave question, email to askdave@arrl.org. Feel free to include pictures or drawings to help clarify. I may answer your question directly, via an Ask Dave video, or in my monthly column "Ask Dave" in QST.
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
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Thanks to my sweet wife, Loretta, KBØVWW, for both audio and video assistance! (Her website is www.aldea-art.com.)
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My Amazon author page, which lists my print and Kindle books: http://www.amazon.com/-/e/B00471I0Q4.
The Truth About Cheap CB Radios for Off-Grid Travel
Finding the best budget CB radios for your rig in 2026 doesn’t have to break the bank. Here is my top pick for reliable trail comms.
Whether you are prepping for a weekend trip or a long-distance trek, having dependable gear is essential. We examine several budget CB radios suitable for overlanding comms, weighing their performance against current standards. I also break down the critical differences in our GMRS comparison to help you decide which system fits your specific trail needs.
Practical, decentralized communications — no towers, no carriers, no permission needed. This channel covers ham radio, Meshtastic and mesh networks, GMRS, and off-grid gear for staying connected anywhere.
★ Support the channel & help spread the word about off-grid comms ★
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Best Digital Interface for HF Radio: https://digirig.net/product/digirig-dr-891/p/1/
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Buy Two Way Radios: https://geni.us/Dr954X
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Commissions may be earned on affiliate links.
Mail: 2150 W. Northwest Highway STE114-1163, Grapevine TX 76051
Today we’re putting Near Vertical Incidence Skywave (NVIS) to the test using the Alpha Antenna Hex in a low-profile NVIS configuration!
What better way to see how well local and regional propagation works than hopping into the Texas QSO Party? We test out both 40 meters and 20 meters, check the SWR with the RigExpert, work some stations across North Texas and beyond, and break down the contact logs on the map.
Check out Alpha Antenna & gear at GigaParts:
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Timestamps:
00:00 – Introduction & What is NVIS?
01:00 – Alpha Hex NVIS Setup & Tripod
02:00 – Setting Up 40m Wire & SWR Check
04:00 – Operating in the Texas QSO Party (40 Meters)
06:06 – Switching Bands to 20 Meters
07:01 – Data Time: Contact Map & Results
08:42 – Final Thoughts & Wrap Up
New Tanker Radio Gear:
New Tank Radio Pillow – https://www.etsy.com/listing/4295008136/tank-radio-pillow-for-amateur-radio
New Tank Radio Black Out T Shirt – https://grapevineamateurradio.com/products/tank-radio-black-out-t-shirt-on-demand-order
Tank US Band Plan Pad – https://quirkyqrphamradios.etsy.com/listing/1657938891
Hoodies – https://grapevineamateurradio.com/products/tank-radio-hoodie-limited-time
Boonie Hats – https://www.gigaparts.com/tank-radio-logo-boonie-hat.html
Sticker Pack – https://grapevineamateurradio.com/collections/combo-packs/products/tank-radio-official-sticker-pack
Help support me by:
spooltenna – https://www.spooltenna.com/?sca_ref=11327622.GxC4hHpdaPs
RollerCam Website – https://classic.avantlink.com/click.php?tool_type=ml&merchant_link_id=6e7562a0-f7b0-4d9a-b15e-25ce3aedb94a&website_id=16611296-f891-4f8b-8010-5fa29c2cab5f
Gigaparts-Double Points https://www.gigaparts.com/nsearch/?lp=KG5AHJ%20INFLUENCER%20PAGE
5% off at Alpha Antenna – https://www.alphaantenna.com/?aff=20
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Follow me on:
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3 Free & Useful Tools For Ham Radio & They're Totally Awesome!
A DX/POTA/SOTA Cluster, Online .adif editor, & A Really Cool Logging Software. Available for all OS’s (I think)
⭐️DXSpider: https://dxc.dm3ks.de
⭐️Add DXSpider Cluster Address dm3ks.de port 7300
⭐️.adif Editor By @WD4DAN : https://wd4dan.net
⭐️Watch Dans Video Here: https://youtu.be/I-VCue8kpI0?si=dgdAEoqoZlwZtzxL
⭐️OpsLog https://github.com/GregTroar/OpsLog
⭐️Join this channel to get access to perks:
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⭐️Consider becoming a Patron @ https://www.patreon.com/k8mrdradiostuff
Follow me on Twitter. https://twitter.com/k8mrd
⭐️Links to many of the things I use can be found here:
https://www.amazon.com/shop/k8mrdradiostuff
As an Amazon Affiliate, I earn from qualifying purchases.
⭐️⭐️LINKS TO OTHER COOL STUFF: affiliate where available
⭐️Save 10% off at https://www.bioennopower.com with Coupon Code HRT
⭐️Save up to 20% off your Coax order at ABR Industries. Code K8MRD10 at checkout.
⭐️The SkyHook Portable Mast Antenna Mount
http://www.thehamstop.com/
Code K8MRDRADIO for 20% off
⭐️Fara-J Antennas: https://vfcomms.com/?sca_ref=10776057.9X2g5LehW7Er
⭐️Earn 2X Points At Gigaparts With Code K8MRD:
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⭐️10% off Messi & Paoloni Coax
Use code K8MRD for 10% off
https://messi.it
(USA & Canada get free shipping on orders $99 euros or more!)
⭐️Signal Stuff Signal Stick Antennas: https://signalstuff.com/?ref=4089
The Xiegu G7250 firmware is here—but what can we actually verify? I’m working with a prototype, and the firmware isn’t publicly available. The changelog doesn’t identify any changes, and the production radio may use a different installation process. So this isn’t a firmware review or an installation tutorial.
👉 Get your Xiegu G7250 with $15 off at Radioddidty: https://go.temporarilyoffline.com/4s9z39
Use Code "TO15"
🚀 Buying Starlink? Get $100 CASH! Use my referral link and we BOTH get $100, paid directly to our bank accounts (or applied as service credit). Terms apply: https://go.temporarilyoffline.com/5gbxnk
Instead, I open up the G7250 firmware package and show how its encryption works. The process uses the same key as the Xiegu G90, and I walk through what that lets us see—and what it still doesn’t tell us about the update. If you’re searching for Xiegu G7250 firmware news, a G7250 firmware update, or how the G90 encryption key relates to the G7250, this video shows what I could confirm from the prototype files.
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👉 Fun Stuff 👈
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Where possible, all links are affiliate links, this youtube thing is an expensive endeavor and every little bit helps.
I Bought Two Used Yaesu Radios... What Could Go Wrong?
I bought two used Yaesu FT-8900 quad-band ham radios for my mobile installation, but are they actually any good?
Shop with DX Engineering 👉 https://dxengineering.pxf.io/N9LVEb (affiliate)
📻 New to Ham Radio? Get On Air With Confidence! 👉 https://hamradiodx.net/30days
🎙️ Nervous About Your First Contact? Learn exactly what to say on the radio, without the awkwardness or uncertainty.👉 https://hamradiodx.net/firstqso
In this video, I put both radios through their paces using a service monitor, checking RF output power and receiver sensitivity across the bands. What I discovered wasn’t quite what I expected!
📨 Want More Ham Radio Tips, Projects & Videos?
Join my newsletter for updates, useful resources and new videos.
👉 https://hamradiodx.net/newsletter
Affiliate Disclaimer
As an Amazon Associate, I may earn from qualifying purchases. Some product links are affiliate links, meaning I may receive a small commission at no extra cost to you.
🕘CHAPTERS🕘
00:00 – Why I Bought Two Used Yaesu Radios
01:55 – Testing the FT-8900s
03:12 – RF Output Power Tests
04:34 – Receiver Sensitivity (SINAD) Testing
07:01 – Something Isn’t Right…
10:06 – Testing the Second FT-8900
11:49 – Opening Up the Radio
12:55 – The Results & Buying Used Radios
💰 Deals & Discounts
📗 Study with Ham Radio Prep – 20% OFF with coupon HAMDX → https://www.HamRadioPrep.com/?rfsn=8903546.442784
❗ Shop DX Engineering – https://dxengineering.pxf.io/N9LVEb
🔋 LiTime Batteries – 8% OFF with code DX8
USA: https://www.litime.com/discount/DX8?ref=DX5
AU: https://au.litime.com/?ref=hamradiodx
Radioddity – $15 OFF → https://www.radioddity.com/?ref=HAMDX
Messi & Paoloni Cables – 10% OFF with coupon VK7HH → https://messi.it/
🛒 Ham Radio on Amazon & eBay: https://geni.us/HamRadioDX
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*Please note due to a high volume of emails – the best way to contact is via the comments section of a video. I do struggle to respond to all emails*
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Inside a Radio: Unboxing Transistors & Circuit Board Secrets! #shorts
Exploring the internal circuit board of a RETIVIS radio. Discovering the RA55H4047M final transistor from Mitsubishi, crucial for 70cm GMRS operation.
👉 Full Video: https://youtu.be/5FWZ1L3b5wY
Today’s Patient:
👉 My list of refurbed rigs: https://temporarilyoffline.com/blogs/tos-blog/revolving-list-of-for-sale-items
👉 Or Get One New: https://go.temporarilyoffline.com/im1jzs
Practical, decentralized communications — no towers, no carriers, no permission needed. This channel covers ham radio, Meshtastic and mesh networks, GMRS, and off-grid gear for staying connected anywhere.
★ Support the channel & help spread the word about off-grid comms ★
📧 Email list: http://hamradio2.com/signup2
💬 Text updates: http://hamradio2.com/textme
✅ Patreon: https://www.patreon.com/c/HamRadio
✅ Shop our products: http://shop.hamradio2.com
✅ Amazon store: https://www.amazon.com/shop/hamradio2.0
Best Digital Interface for HF Radio: https://digirig.net/product/digirig-dr-891/p/1/
📻 Our Sponsors 📻
R&L Electronics: https://www.randl.com
Buy Two Way Radios: https://geni.us/Dr954X
Save 20% at https://hamradioprep.com with code JASON20
FlexRadio: https://flexradio.com
BaofengTech: https://baofengtech.com/ref/hamradio2/
Commissions may be earned on affiliate links.
