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Handy Oscilloscope For Your PCSupport forum for the latest gizmos and gadgets. Like it says on the box, you like it, write about it here. Share our views and reviews here. | |
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| | LinkBack | Thread Tools | Display Modes |
07-01-2008
| #1 | ||
| cerca trova...  Join Date: 01-01-2000 Location: East Anglia
Posts: 6260
Thanks: 37
Thanked 413 Times in 376 Posts
Blog Entries: 1 My System: Triple Dragon with HDD/USB stick, Dreambox 8000, Humax HDCI2000, Echostar AD3000ip & SR8700, Aston Simba, RSD ODM300. Swedish Microwave 1.2 Motorised dish / Invacom C120 twin LNB driven by the AD3000. 3 other fixed dishes.  Fighting the evil 3 Dragons under the Don Quixote banner,Sir Llew persevered where others failed |
Been trying this little 'virtual oscilloscope' from _www.zelscope.com/ It takes the signal applied to the line in of your soundcard and gives you a nice display of any AC signal within the frequency range of the soundcard's input. Of course as the input is blocked by a capacitor, you can't read DC voltages, but the voltage level of any AC waveform is shown. With restrictions of course - ONLY FOR READING LOW VOLTAGES! SEE THE WARNING ON THE ZELSCOPE SITE! The upper frequency limit obviously depends on your soundcard (normally ~20 kHz) but I had no problem going higher - I found it handy for checking some outputs of my Echostar AD3000ip. My 'normal' oscilloscope is not digital, so I don't have the facility to inspect a waveform - this is where this 'scope is very useful. Some possibilities - Inspecting the DiseqC pulses out to your LNB. Reed pulses from your dish motor. AF waveforms from the audio output of your STB, or indeed anything audio. Following posts show some captured waveforms. | ||
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07-01-2008
| #2 | ||
| cerca trova... Join Date: 01-01-2000 Location: East Anglia
Posts: 6260
Thanks: 37
Thanked 413 Times in 376 Posts
Blog Entries: 1 My System: Triple Dragon with HDD/USB stick, Dreambox 8000, Humax HDCI2000, Echostar AD3000ip & SR8700, Aston Simba, RSD ODM300. Swedish Microwave 1.2 Motorised dish / Invacom C120 twin LNB driven by the AD3000. 3 other fixed dishes. Fighting the evil 3 Dragons under the Don Quixote banner,Sir Llew persevered where others failed | Here's the 22kHz output from my Echostar AD3000ip. For the connection to the soundcard, I used a cable with one end an f-plug, and an RCA plug on the other going to a RCA - headphone plug adaptor. | ||
| Celebrating Ten Years Of The Forum As A Founder Member | |||
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07-01-2008
| #3 | ||
| Amo Amas Amant Admin  Join Date: 18-11-2004 Location: Blackburn NW England (Siberia)
Posts: 11313
Thanks: 24
Thanked 506 Times in 465 Posts
My System: IDD CI24 ECONO MM Penta 1.20 Galaxy II 1.2Mtr Polar MTG yes it has been on the arc for 21 years and is still driven by a modified wiper motor from a Ford Anglia. It's like me sometimes groans but always performs  Saved us from the black plague of ignoratio elenchi, he awaits a special badge with jugs |
Very nice Llew, if I ever get the time I may have a go with that, looks like fun, I have fond memories of the Ecad software used for electronic simulation, used to tear my hair out at times just getting my circuit to produce a waveform | ||
| War does not determine who is right, it determines who is left! Formerly toppervte33h whose six pack has turned into a keg Help support this web site by making a donation Or use other options to help support Sats UK Show Your Support by clicking the button Thank you. Freddie Flintoff is back | |||
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07-01-2008
| #4 | ||
| cerca trova... Join Date: 01-01-2000 Location: East Anglia
Posts: 6260
Thanks: 37
Thanked 413 Times in 376 Posts
Blog Entries: 1 My System: Triple Dragon with HDD/USB stick, Dreambox 8000, Humax HDCI2000, Echostar AD3000ip & SR8700, Aston Simba, RSD ODM300. Swedish Microwave 1.2 Motorised dish / Invacom C120 twin LNB driven by the AD3000. 3 other fixed dishes. Fighting the evil 3 Dragons under the Don Quixote banner,Sir Llew persevered where others failed | ...and a nice trace of the shape of a pulse from the optical sensor of my actuator. Only shows one here, but you can watch the train of pulses for any interference if you need to and 'freeze' to inspect. Note the excellent squarewave, no nasty glitches! | ||
| Celebrating Ten Years Of The Forum As A Founder Member | |||
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07-01-2008
| #5 | ||
| Amo Amas Amant Admin Join Date: 18-11-2004 Location: Blackburn NW England (Siberia)
Posts: 11313
Thanks: 24
Thanked 506 Times in 465 Posts
My System: IDD CI24 ECONO MM Penta 1.20 Galaxy II 1.2Mtr Polar MTG yes it has been on the arc for 21 years and is still driven by a modified wiper motor from a Ford Anglia. It's like me sometimes groans but always performs Saved us from the black plague of ignoratio elenchi, he awaits a special badge with jugs |
That is quite impressive indeed | ||
| War does not determine who is right, it determines who is left! Formerly toppervte33h whose six pack has turned into a keg Help support this web site by making a donation Or use other options to help support Sats UK Show Your Support by clicking the button Thank you. Freddie Flintoff is back | |||
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