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Author Topic: EEVblog #575 - DIY 1970s Spectrum Analyser  (Read 7302 times)

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Offline Mr Simpleton

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Re: EEVblog #575 - DIY 1970s Spectrum Analyser
« Reply #25 on: February 04, 2014, 11:09:01 AM »
What about a good kick ass open hardware SA? If he did that 33! years ago where are the good DIY SA nowadays? Probably everybody is like me now: for test equipment find the product you like and drop some money from the bank out. So sad....
Scotty's SA is a stellar performer but pretty complex.
Looking at ex. Tektronix guru W7ZOI he almost duplicated the Aussies  :-+   http://w7zoi.net/sa-stuff.html

Others have been using old cable TV tuners as frontend... I think I do have one that I started to convert to a SA... never completed  :-//
 

Offline on8vq

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Re: EEVblog #575 - DIY 1970s Spectrum Analyser
« Reply #26 on: February 04, 2014, 03:47:12 PM »
That's a great video, but the real question is: what were you doing at that ham meeting? Informing on how to get a license? (Personally I think that would be awesome).

Remember: being a ham doesn't mean you are required to make contacts, it just means that you have a license to build, operate and experiment with transmitters. All the rest is folklore (nothing against it at all, don't get me wrong - but if it's not your cup of tea, simply don't participate).
 

Offline EEVblog

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Re: EEVblog #575 - DIY 1970s Spectrum Analyser
« Reply #27 on: February 04, 2014, 04:55:09 PM »
What kind of oscilloscope is he using?

Looked like and old Hung Chang to me, but I didn't look closely.
 

Offline EEVblog

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Re: EEVblog #575 - DIY 1970s Spectrum Analyser
« Reply #28 on: February 04, 2014, 04:56:22 PM »
That's a great video, but the real question is: what were you doing at that ham meeting?

I was invited to show off my CH7 TX gear, its was a retro 70's/80's night.
 

Offline Len

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Re: EEVblog #575 - DIY 1970s Spectrum Analyser
« Reply #29 on: February 05, 2014, 09:19:08 AM »
I was invited to show off my CH7 TX gear, its was a retro 70's/80's night.
Did you win a prize for Most kW? :)
 

Offline DrGeoff

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Re: EEVblog #575 - DIY 1970s Spectrum Analyser
« Reply #30 on: March 30, 2014, 08:52:33 AM »
Just saw this one today. I used to work with Phil around 25 years ago (early 90's). He wasn't as grey then, but a really nice bloke and great engineer to work with. If he's now messing with traffic controllers I can guess where he's working now. Nice to see some of his old home brew kit again.
Was it really supposed to do that?
 


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