Gary @N8DMT<p>Ever wonder what the input impedance/VSWR is for your inexpensive TinySA-Ultra spectrum analyzer? The specs page provides this info: Input impedance 50 ohm when input attenuation set to 10dB or more. Decided to measure one with a CMT R54 vector analyzer to see just how close to 50 ohms it is from 85-5400 MHz. TLDR: It’s pretty good at both high and low source power settings (better than expected with tinySA 0 dB input attenuator setting). <a href="https://mastodon.radio/tags/HamRadio" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>HamRadio</span></a> <a href="https://mastodon.radio/tags/TestEquipment" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>TestEquipment</span></a> <a href="https://mastodon.radio/tags/TinySA" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>TinySA</span></a></p>
#testequipment
2 posts2 participants0 posts today
Now in stock on Lectronz: miniPCI-e breakout board https://lectronz.com/products/minipci-e-breakout-board
#CablesAndAdapters #TestEquipment
lectronz.comminiPCI-e breakout boardminiPCIe breakout board for prototyping
Protocol Analyzer Remembered - Anyone will tell you that as hard as it is to create a working system, the real tr... - https://hackaday.com/2025/03/30/protocol-analyzer-remembered/ #protocolanalyzer #retrocomputing #testequipment #classichacks #rs232
Hackaday · Protocol Analyzer RememberedAnyone will tell you that as hard as it is to create a working system, the real trick is making two systems talk to each other, especially if you created only one or none of them. That’s why …
ooops, I did it ah-gain
I bought four more SCOOOOPES….
I have, no.
Self control.
#tektronix #retroTech #electronics #testEquipment #1960s
Inside a “Budget” Current Probe - Current measurements are not as handy as voltage measurements. You typically need ... - https://hackaday.com/2025/03/16/inside-a-budget-current-probe/ #testequipment #currentprobe #teardown #reviews #owon
Hackaday · Inside A “Budget” Current ProbeCurrent measurements are not as handy as voltage measurements. You typically need to either measure the voltage across something and do some math or break the circuit so a known resistor in your in…
Continued thread
It generates a sine wave but it is easy to temporarily alter the circuit to generate more complex waveforms.
A line test generator. With manual and auto sweep (from about 400Hz to about 3.5KHz.
I have used test equipment to make music. With the manual frequency adjust you can make some melodic stuff. And connect that to a guitar pedal, like a guitar synth for example and you can do all kinds of crazy stuff.
A Look Inside a Modern Mixed Signal Oscilloscope - High-speed bench equipment has become so much more affordable in the last decade t... - https://hackaday.com/2025/01/18/a-look-inside-a-modern-mixed-signal-oscilloscope/ #digitaloscilliscope #testequipment #teardown
Hackaday · A Look Inside A Modern Mixed Signal OscilloscopeHigh-speed bench equipment has become so much more affordable in the last decade that naturally one wonders what has made that possible. A great source of answers is a teardown by users like [kerry…
Open Source Multimeter Raises the Bar for DIY Tools - Whether you only dabble in electronics as a hobby or it’s your full-time job, ther... - https://hackaday.com/2024/12/25/open-source-multimeter-raises-the-bar-for-diy-tools/ #opensourcehardware #testequipment #multimeter #toolhacks
Hackaday · Open Source Multimeter Raises The Bar For DIY ToolsWhether you only dabble in electronics as a hobby or it’s your full-time job, there are few tools as indispensable as the multimeter. In fact, we’d be willing to bet nearly everyone rea…