AeroElectric-List Digest Archive

Thu 08/09/12


Total Messages Posted: 5



Today's Message Index:
----------------------
 
     1. 01:04 PM - How to Select a Scope (Jeff Luckey)
     2. 02:05 PM - Re: How to Select a Scope (Normand Biron)
     3. 03:09 PM - Re: How to Select a Scope (Daniel Hooper)
     4. 07:39 PM - Re: How to Select a Scope (Ken)
     5. 09:43 PM - Re: How to Select a Scope (Jeff Luckey)
 
 
 


Message 1


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    Time: 01:04:19 PM PST US
    From: "Jeff Luckey" <JLuckey@pacbell.net>
    Subject: How to Select a Scope
    I've been considering purchasing an oscilloscope for hobby/trouble-shooting use. It's been 30+ years since I've fiddled with scopes. I'm looking for counseling/guidance/recommendations. Some things I want to do: 1. Analyze the output of the crank angle sensor in my car - (currently having some starting problems, but I digress) 2. I like to program micro-controllers and would like to do trouble-shooting & analysis 3. Look at the wave-forms produced by an alternator 4. Get the best bang for the buck Questions: 1. I see devises advertised that are combo oscilloscope & logic analyzer. Are these as cool as they appear? 2. How do I decide which frequency range I need? (It seems the higher the MHz rating of a device the higher the cost) Most of the micro-controllers that I work with are clocked around 4 MHz. I once heard that the rating of the scope should be 10x the signal you want to analyze. Is that true? 3. What other criteria should I consider? As always TIA, I look forward to learning something Jeff Luckey


    Message 2


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    Time: 02:05:29 PM PST US
    Subject: Re: How to Select a Scope
    From: Normand Biron <normbiron@msn.com>
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    Message 3


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    Time: 03:09:20 PM PST US
    From: Daniel Hooper <enginerdy@gmail.com>
    Subject: Re: How to Select a Scope
    I have one of these: http://www.tequipment.net/RigolDS1102E.html It's "good" -- it's a pretty good scope for $400. Digital, storage, USB image and data capture, RS-232/USB computer control port. You can also get a DS1052E for $350 if you want to drop down to 50MHz bandwidth for $50 less. I ended up getting the scope case for $50 as well. There are definitely some glitches and usability hitches every now and then, but overall it's great for the money. But, if I had tons of money to blow, I'd definitely get an Agilent Infiniivision scope. For the microcontroller work, you're going to get a lot more productivity mileage out of a Saleae Logic: http://www.saleae.com/logic For $150 not only will it capture 8 channels in parallel, but you can also assign channels to be decoded inline. Many serial formats are supported out of the box. For digital work, I highly recommend it. It will not read any analog inputs, however, so you'd need a scope for that -- but getting that kind of serial decoding in a scope tends to be expensive. Good luck! --Daniel On Aug 9, 2012, at 3:02 PM, Jeff Luckey wrote: > I=92ve been considering purchasing an oscilloscope for hobby/trouble-shooting use. It=92s been 30+ years since I=92ve fiddled with scopes. I=92m looking for counseling/guidance/recommendations. > > Some things I want to do: > > Analyze the output of the crank angle sensor in my car ' (currently having some starting problems, but I digress) > I like to program micro-controllers and would like to do trouble-shooting & analysis > Look at the wave-forms produced by an alternator > Get the best bang for the buck > > > Questions: > I see devises advertised that are combo oscilloscope & logic analyzer. Are these as cool as they appear? > How do I decide which frequency range I need? (It seems the higher the MHz rating of a device the higher the cost) Most of the micro-controllers that I work with are clocked around 4 MHz. I once heard that the rating of the scope should be 10x the signal you want to analyze. Is that true? > What other criteria should I consider? > > As always TIA, I look forward to learning something > > Jeff Luckey > > > > >


    Message 4


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    Time: 07:39:19 PM PST US
    From: Ken <klehman@albedo.net>
    Subject: Re: How to Select a Scope
    saelig.com is worth a look for value. I have an older PDS5022S which is about all I need for playing with microcontrollers etc. Ken do not archive On 09/08/2012 4:02 PM, Jeff Luckey wrote: > Ive been considering purchasing an oscilloscope for > hobby/trouble-shooting use. Its been 30+ years since Ive fiddled with > scopes. Im looking for counseling/guidance/recommendations. > > Some things I want to do: > > 1. Analyze the output of the crank angle sensor in my car (currently > having some starting problems, but I digress) > 2. I like to program micro-controllers and would like to do > trouble-shooting & analysis > 3. Look at the wave-forms produced by an alternator > 4. Get the best bang for the buck > > Questions: > > 1. I see devises advertised that are combo oscilloscope & logic > analyzer. Are these as cool as they appear? > 2. How do I decide which frequency range I need? (It seems the higher > the MHz rating of a device the higher the cost) Most of the > micro-controllers that I work with are clocked around 4 MHz. I once > heard that the rating of the scope should be 10x the signal you want > to analyze. Is that true? > 3. What other criteria should I consider? > > As always TIA, I look forward to learning something > > Jeff Luckey > > *


    Message 5


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    Time: 09:43:17 PM PST US
    From: "Jeff Luckey" <JLuckey@pacbell.net>
    Subject: How to Select a Scope
    Thanks for all responses. Most have dealt w/ actual O-scopes. What about scope/analyzers that connect to a computer via USB for control & display? -----Original Message----- From: owner-aeroelectric-list-server@matronics.com [mailto:owner-aeroelectric-list-server@matronics.com] On Behalf Of Ken Sent: Thursday, August 09, 2012 19:34 Subject: Re: AeroElectric-List: How to Select a Scope saelig.com is worth a look for value. I have an older PDS5022S which is about all I need for playing with microcontrollers etc. Ken do not archive On 09/08/2012 4:02 PM, Jeff Luckey wrote: > I've been considering purchasing an oscilloscope for > hobby/trouble-shooting use. It's been 30+ years since I've fiddled with > scopes. I'm looking for counseling/guidance/recommendations. > > Some things I want to do: > > 1. Analyze the output of the crank angle sensor in my car - (currently > having some starting problems, but I digress) > 2. I like to program micro-controllers and would like to do > trouble-shooting & analysis > 3. Look at the wave-forms produced by an alternator > 4. Get the best bang for the buck > > Questions: > > 1. I see devises advertised that are combo oscilloscope & logic > analyzer. Are these as cool as they appear? > 2. How do I decide which frequency range I need? (It seems the higher > the MHz rating of a device the higher the cost) Most of the > micro-controllers that I work with are clocked around 4 MHz. I once > heard that the rating of the scope should be 10x the signal you want > to analyze. Is that true? > 3. What other criteria should I consider? > > As always TIA, I look forward to learning something > > Jeff Luckey > > * ----- No virus found in this message. Checked by AVG - www.avg.com




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