Author Topic: Workshop and fixit stuff  (Read 9407 times)

hermes2015

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Re: Workshop and fixit stuff
« Reply #150 on: March 09, 2018, 06:29:15 PM »
Not that I can find. Have found a fairly comprehensive manual, with typical applications, in pdf form but no mention of signal:noise in the spec.

That's a pity, because it is an unambiguous test, which, if it fails, gives you good ammunition when you complain about the scope. On the other hand, unless you are measuring less that a few hundred millivolts, the noise you mention should not impact too much on the accuracy. A S/N ratio of at least 10:1 will ensure reasonable precision and repeatability.

Dave

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Re: Workshop and fixit stuff
« Reply #151 on: March 09, 2018, 06:39:33 PM »
Not that I can find. Have found a fairly comprehensive manual, with typical applications, in pdf form but no mention of signal:noise in the spec.

That's a pity, because it is an unambiguous test, which, if it fails, gives you good ammunition when you complain about the scope. On the other hand, unless you are measuring less that a few hundred millivolts, the noise you mention should not impact too much on the accuracy. A S/N ratio of at least 10:1 will ensure reasonable precision and repeatability.

OK, I am just too fussy!

 :unsure:
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jumbojak

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Re: Workshop and fixit stuff
« Reply #152 on: March 09, 2018, 09:23:56 PM »
Ah, I didn't realize you bought the scope as a unit. I'm familiar with Hantek usb offerings. Makes much more sense now.
 

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Dave

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Re: Workshop and fixit stuff
« Reply #153 on: March 09, 2018, 10:23:11 PM »
Ah, I didn't realize you bought the scope as a unit. I'm familiar with Hantek usb offerings. Makes much more sense now.

Ah, didn't even know thst they did usb 'scopes!

Another bitch, can't get it working on W10 64bit.  Plug it in and my W10 tablet recognises it. Software apparently loads OK in the tablet. Does the software see the 'scope? Nope!

Try method two, dump data to USB drive. Scope says "Successfully downloaded".  But neither software nor Explorer can find the file . . .

Search the web and Youtube. Known issue, suggested that the driver is 32bit; 64bit drivers and hacks found for other models but not mine. Hantek website as much use as a chocolate crucible in a steelworks. Good thing I don't need to dump files for deep analysis and that my tablet takes adequate shots of the screen (if I lower the window blind and turn lights, and flash, off.) But it is also able to produce CSV files for matgematical analysis, if you could get it to actually cummunicate with the USB that is! It can, and does, store 'scope setups internally.

Just bloody annoying and not the first time Chinese software has not worked on W10.

Later:
 Have sent email to Hantek explaining the problem, saying that their site is of little use, asking for firmware/driver update downloads etc.
« Last Edit: March 09, 2018, 10:33:28 PM by Dave »
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jumbojak

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Re: Workshop and fixit stuff
« Reply #154 on: March 10, 2018, 01:23:31 AM »
Good luck Dave. If other's recent experience dealing with their 8 channel usb scopes are any indication you might be waiting a long, long time for any fixes....
 

"Amazing what chimney sweeping can teach us, no? Keep your fire hot and
your flue clean."  - Ecurb Noselrub
" Please hold your high school or college math books in higher esteem than
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Dave

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Re: Workshop and fixit stuff
« Reply #155 on: March 10, 2018, 06:59:40 AM »
Good luck Dave. If other's recent experience dealing with their 8 channel usb scopes are any indication you might be waiting a long, long time for any fixes....

Ans Hantek get a 1* review for fsulty kit and kack if servuce..
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hermes2015

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Re: Workshop and fixit stuff
« Reply #156 on: March 10, 2018, 07:24:47 AM »
Good luck Dave. If other's recent experience dealing with their 8 channel usb scopes are any indication you might be waiting a long, long time for any fixes....

Ans Hantek get a 1* review for fsulty kit and kack if servuce..

Don't you mean cack?

Dave

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Re: Workshop and fixit stuff
« Reply #157 on: March 10, 2018, 07:43:15 AM »
Good luck Dave. If other's recent experience dealing with their 8 channel usb scopes are any indication you might be waiting a long, long time for any fixes....

Ans Hantek get a 1* review for fsulty kit and kack if servuce..

Don't you mean cack?

"...lack of service"

Though "cack" might be appropriate in some respects.

Looks like I still need new glasses! Or to actually sit up at a desk with a stylus or use the Bluetooth keyboard to type instead of being a laid bsck couch slouch!. Or edit every thing twice . . . Thrice . . .


[Changed "potato" to "slouch" - more accurate and I like the rhyme!)]
« Last Edit: March 10, 2018, 09:43:29 AM by Dave »
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jumbojak

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Re: Workshop and fixit stuff
« Reply #158 on: March 22, 2018, 04:06:37 AM »
Spent the evening sharpening chisels and cleaning up an old yankee screwdriver. Going to have a go at some small dovetail boxes here soon. A few saws need sharpening though.
 

"Amazing what chimney sweeping can teach us, no? Keep your fire hot and
your flue clean."  - Ecurb Noselrub
" Please hold your high school or college math books in higher esteem than
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hermes2015

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Re: Workshop and fixit stuff
« Reply #159 on: March 22, 2018, 04:37:08 AM »
Spent the evening sharpening chisels and cleaning up an old yankee screwdriver. Going to have a go at some small dovetail boxes here soon. A few saws need sharpening though.

I wouldn't even dream of attempting dovetails. I am strictly a glue and screw woodworker.

jumbojak

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Re: Workshop and fixit stuff
« Reply #160 on: March 22, 2018, 04:45:31 AM »
We'll see how they turn out. I imagine the final result will be rather rough.
 

"Amazing what chimney sweeping can teach us, no? Keep your fire hot and
your flue clean."  - Ecurb Noselrub
" Please hold your high school or college math books in higher esteem than
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hermes2015

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Re: Workshop and fixit stuff
« Reply #161 on: March 22, 2018, 04:48:50 AM »
We'll see how they turn out. I imagine the final result will be rather rough.

We will need photos, please.

Dave

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Re: Workshop and fixit stuff
« Reply #162 on: March 22, 2018, 05:23:05 AM »
Spent the evening sharpening chisels and cleaning up an old yankee screwdriver. Going to have a go at some small dovetail boxes here soon. A few saws need sharpening though.

Goodness, I have not taiked a dove since my school dsys - then it was only a single joint for practice. I am with Hermes, screw it, glue it!

I do keep my chisels good and shsrp though, have had a few locks to fit and have done the odd halving joint. I really love seeing excellent joinery though, it can be an artform.
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Bad Penny II

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Re: Workshop and fixit stuff
« Reply #163 on: March 22, 2018, 12:44:54 PM »
I wouldn't even dream of attempting dovetails. I am strictly a glue and screw woodworker.

Ye me too, though I don't usually bother with the glue.

Jesus though was a purist and shunned all fasteners as is shown in The Gospel According to the Son, kinda ironic really.
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jumbojak

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Re: Workshop and fixit stuff
« Reply #164 on: March 22, 2018, 01:35:58 PM »
We'll see how they turn out. I imagine the final result will be rather rough.

We will need photos, please.

When I get some progress y'all will be the first exhibition.
 

"Amazing what chimney sweeping can teach us, no? Keep your fire hot and
your flue clean."  - Ecurb Noselrub
" Please hold your high school or college math books in higher esteem than
your copy of the KJV. " - Icarus