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W3AXL
Добавлен 18 июл 2021
Ham radio experiments and general shenanigans
Bringing My VNA into the 21st Century - HP 8714C LCD Upgrade
Follow along as I undertake the non-trivial task of converting my 90's-era HP 8714C vector network analyzer from its old & worn out CRT to a fancy "modern" (early-2000s) LCD. In the process we'll do some mechanical design, 3D printing, and of course, some electronics tinkering.
Intro/outro sampled from Jungle Jazz by Kool & The Gang
Intro/outro sampled from Jungle Jazz by Kool & The Gang
Просмотров: 10 083
Видео
Tuning a UHF Bandpass Filter - RX Preselectors and What They Do
Просмотров 7644 месяца назад
Another "short" video explaining my procedure for tuning RX cavity filters - in this case, a classic Motorla CLE1170A RX preselector commonly used in MTR, Quantar, and GTR repeaters. Intro music: Funk Inc - Kool is Back (1971) W9CR Wiki: wiki.w9cr.net IMSAIGuy: @IMSAIGuy
The Rubidium Frequency Standard (Inner Workings Explained)
Просмотров 31 тыс.Год назад
We take a look at my latest late-nigh eBay purchase - an Efratom FRS Rubidium Frequency Standard. CuriousMarc's Amazing HP 5061A Cesium Video: ruclips.net/video/eOti3kKWX-c/видео.html Efratom FRS-C Manual: wiki.w3axl.com/images/1/1f/Efratom_FRS-C_Rubidium_Oscillator.pdf My GPSDO (a variant of the EEVBlog Forums Lars GPSDO design): github.com/W3AXL/Simple-GPSDO
An In-Depth Look at the Kenwood VP8000 - Thoughts and Performance Testing
Просмотров 8 тыс.Год назад
A more in-depth video discussing my thoughts on the VP8000 after one month, as well as some performance testing/analysis and some general information.
The New Kenwood VP8000! Overview and Comparison to the APX8000
Просмотров 43 тыс.Год назад
I give a quick look at my new Kenwood/EF Johnson/Viking VP8000 and compare it to my old workhorse - the Motorola APX8000. Custom knob for the APX8000: www.printables.com/model/412593-motorola-apx-custom-fat-channel-knob
TYT TH-9000D Off-Frequency! Tune-up (or not?)
Просмотров 7 тыс.2 года назад
I try and get a local ham's TH-9000D back on frequency after it drifted quite severely. This proves to be...not so simple, as is typically the case for projects on my bench. TinyMicros wiki page on the TH-9000D: tinymicros.com/wiki/TYT_TH-9000 Amtronix information page on the HP/Agilent 8935: www.amtronix.com/e6380a.htm
Motorola Quantar Exciter Repair Part 3 - Alignment & Finale
Просмотров 2,6 тыс.2 года назад
Final tuning and alignment of the Motorola Quantar in preparation for installing it at the site. Thanks for watching! Radio & TV News article on square wave testing: www.rfcafe.com/references/radio-news/practical-techniques-square-wave-testing-july-1957-radio-tv-news.htm My (less cool) wiki: wiki.w3axl.com
Motorola Quantar Exciter Repair Part 2 - Repair and Testing
Просмотров 1,9 тыс.2 года назад
Removal of a sketchy questionable DIP socket from a Motorola Quantar's exciter and replacing it with a new one that doesn't even fit properly. A true professional repair. Thanks for watching! My (less cool) wiki: wiki.w3axl.com
Motorola Quantar Exciter Repair Part 1 - Station Overview and Troubleshooting
Просмотров 3,6 тыс.2 года назад
First look and initial troubleshooting on a Motorola Quantar repeater with a dead exciter. Thanks for watching! W9CR's wiki: wiki.w9cr.net My (less cool) wiki: wiki.w3axl.com