Intro music provided by one of these;
Silent Partner – Fortunate Note
Noir Et Blanc Vie – Brighton Lights
John Deley & the 41 Players – Heat Wave
Doug Maxwell – Psychedelicacy
Big Blues by Audionautix is licensed under a Creative Commons Attribution 4.0 license. https://creativecommons.org/licenses/by/4.0/
Tonight Jim and I dig into the fabulous world of 1980’s Hardware TNCs. First we learn what we don’t know and in an upcoming episode, we’ll try and make an HF connection via TNC based modes!
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Dan, Brian and I discuss ham radio "chasing", the often overlooked side of Summits on the Air and Parks on the Air. Both Dan and Brian discuss improvements to their stations which improve their chasing capabilities. I talk about the Miles Per Watt Award (KMPW) for the QRPp’er.
Join us as we talk about how YOU can get involved in portable radio in this episode of the All Portable Discussion Zone “AP/DZ”. Every aspect of Portable Ops is explored in this biweekly live stream as we discuss news, gear, achievements, the workbench, contests, awards and more – find all Portable Ops related topics here.
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We’re phasing two dipole antennas together on our repeater system, but we need to add downtilt – to move the main lobe down toward our main users.
This is how you build a delay line to accomplish this using a NanoVNA.
⬇️ Equipment in this video ⬇️
NanoVNA SAA-2N 👉 https://geni.us/YPOGD0
NanoVNA H4 👉 https://geni.us/SqRmO
As an Amazon Associate, I may earn from qualifying purchases
Some product links are affiliate links which means if you buy something I may receive a small commission.
⏱️Chapters⏱️
0:00 The problem with our new antenna
2:28 The solution
4:25 How do we do it?
7:25 Maths…
10:49 The delay line
11:57 Using the NanoVNA to measure
16:37 Testing another cable
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In this video, we test a few 49:1 Autotransformers that are designed to be used on an End Fed halfwave (EFHW) antenna for amateur radio (ham radio).
Sponsored by http://www.pcbway.com Cheap & quick PCB, 3D Printing, CNC machining, and fabrication services from PCBWay.
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You can use a NanoVNA to measure coax length or distance to fault, similar to a TDR using the Transform function.
*Note the model I use is a NanoVNA SAA-2N – not the H4*
⬇️ Equipment in this video ⬇️
NanoVNA SAA-2N 👉 https://geni.us/YPOGD0
NanoVNA H4 👉 https://geni.us/SqRmO
Messi and Paoloni Hyperflex 13 👉 https://messi.it/en/catalogue/50-ohm-cables-ham-radio/hyperflex-13.htm
Use Coupon VK7HH for 10% OFF M&P
As an Amazon Associate, I may earn from qualifying purchases
Some product links are affiliate links which means if you buy something I may receive a small commission.
⏱️Chapters⏱️
0:00 What’s the length?
0:24 Velocity factor
1:31 Setting up the NanoVNA
4:23 Measuring the cable
📺 Watch the next video here 👉 https://www.youtube.com/@HamRadioDX
⬇️ Exclusive Deals ⬇️
📖 20% off Ham Radio Prep Courses – Use Coupon HAMDX https://hamradioprep.com/
💰 $15 OFF at Radioddity – http://radioddity.refr.cc/haydenvk7hh
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Rothammel’s is one of the most comprehensive antenna manuals I have ever seen. You can find it at Gigaparts (Coupon code "JOSH"): https://www.gigaparts.com/rothammels-antenna-book.html?srsltid=AfmBOoqJ7ERfHcyV-3UE19DB4gnUBRhWustA_lA4gPOYHy6Axa6Tl0kH
📻 Want the best HT antenna? Signal Stuff Signal Stick https://signalstuff.com/?ref=622 (This is an affliate link)
📻 Looking for the best deal on the Ed Fong J-Pole? https://www.kbcubed.com/DBJ-2H-Amateur-Ham-2m-70cm-Dual-Band-Portable-Rollup-Antenna-by-Ed-Fong-p406009746
📻 The Coax I use is ABR Industries (10% off with code: "abr10hrcc"): https://abrind.com/?sld=6
📻 I use Ham Radio Deluxe: https://www.hamradiodeluxe.com/aff/2DC45C837DEE2A018A2BCB345A2E3900/index.html?subid=558903
📻 You can find some of my favorite radios and gear at GigaParts: https://www.gigaparts.com/nsearch/?lp=JOSH
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Sometimes SOTA activations don’t go as planned. This one was one of those. I had some success with the activation but a little trouble with recording the contacts I got on the little Rockmite QRP Transceiver. Rex Harper’s Rockmite ][++ is a fun kit to build and the 6-7 hundred milliwatts can still get you the contacts.
QRPme Website: https://qrpme.com/
Rockmite ][++ Order Page: https://qrpme.com/?p=product&id=RMBM
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Anker Speaker: https://amzn.to/4cN8DWU
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