6 ms·
Yeah 1 GHz is nice, but that tiny 200 MHz Siglent is going to be much more useful in practice for most things. Speaking of boat anchors, I'm trying to get my c
by jhallenworld 15d ago
Yeah 1 GHz is nice, but that tiny 200 MHz Siglent is going to be much more useful in practice for most things.
Speaking of boat anchors, I'm trying to get my company to buy a DSA91304a (13 GHz scope with SERDES debugging). ~$44K with all the options, but still Windows-XP. The Windows-7 ones unfortunately don't have the options I want. Maybe there is a hack..
- amelius 15d ago200 MHz is good enough for most things. And for modern computing electronics even 1GHz is too slow, e.g. monitoring USB3 or high speed PCIE data lanes. Did you get a price quote for that keysight oscilloscope? I see that you can also rent them for $2000 a month.
- jhallenworld 15d agoWe've rented them in the past- always we're not quite sure we're done so keep them much longer than necessary. They're kind of a pain to pack and ship.
- liamkinne 15d agoI have a 1.5GHz TDS7154B in addition to my 200MHz SDS1204 specifically to measure power rail noise with a low noise probe. You just can’t characterise power rail noise well with less than 500MHz of bandwidth.
- tverbeure 15d agoAs I wrote: the TDS7104 is now sitting on a shelf in the garage, next to an Agilent 54831 and some other boat anchors. My daily drivers are a Siglent scope and a puny TDS220, which is about to be replaced by a TDS3052 that I'm bringing back to life. Hobbyists rarely need more than 100 MHz BW. I hope you're able to thoroughly test that DSA91304a before dropping $44k on it!
- Gibbon1 15d agoTDS220 Cute little thing. The reality is you hope that's all you need.
- Tangurena2 14d agoI hope you're aware of the TekWiki: https://w140.com/tekwiki/wiki/Main_Page https://w140.com/tekwiki/wiki/Main_Page Mine is a TDS224. Cheap, but I only use it for keeping my Eurorack synth going. 100MHz is overkill for audio. Although some modules use STM32 microcontrollers, so maybe the speed will come in handy.
- tverbeure 14d agoTekWiki is great! 100MHz is overkill for most hobbyists use cases, and definitely repairing test equipment: it's always the power supply.