Hello there,
I am a new forum user.
After my presentation I searched on the forum for some characterisitics of DSOs since I would like to buy one.
Finally, I am undecided between 3 models:
Owon SDS7102V
Siglent SDS1102CNL
Hantek DSo5102B
Can you please me advice on what can be the better choice for a hobby-use especially in repair field?
Consider that I can take the OWON and the Hantek at the same price while the Siglent at a smaller price.
I am also interested in evaluating firmware modding if possible for some models.
Thank you for your advices.
Bye
If you want even some amount apples - apples compare you have wrong Siglent in this group.
Owon have 10+10M full speed memory. (for both channels but with one channel use still 10M for channel)
Hantek have 4k full speed memory and 500k + 500k (1M if one channels in use) half speed Long merory.
Siglent have 40k full speed memory for 1 channel but only if 1GSa/s and 20k for lower speed in 1 channel use. 20k/channel always if 2 channel in use. CNL do NOT have at all long memory.
It need carefully think what this memory question means, not only for thinking how long capture can take but memory amount and speed is important factor for samplerate if use also other horizontal speeds than some fastest.
Siglent is ok if you do not need capture long data or if you do not need high samplerate with low horizontal speeds.
Hantek you can mod to 200MHz model but it is good to remember that it do not affect memory speed and not sampling speed. And it is only scope in this group what you can really mod.. becouse it have open linux and in forum there is lot of cnowledge for it. There is even schematics available (due to Tinhead lot of nice works)
Owon is far over these both machines if look sampling fidelity and display quality and specially sampling speed using low horizontal speeds. It can do 1GSa/s down to 500us/div.
Down to 2ms/div its frequancy BW is still 100MHz. (Nyquist limit 125MHz / 250MSa/s)
2ms/div Hantek have barely 10MHz BW what ever mod have done. (Nyquist limit is 10MHz /20MSa/s)
1ms/div Siglent have 100kHz BW (Nyquist limit is 125kHz with samplerate 250kSa/s)
(For some other compare: example Rigol DS1000E have 2ms/div <5MHz BW (10MSa/s)
Tektronix new some "1000" model have much less than Siglent becouse it have only 2.5k memory)
Siglent is good if no need this slow speed high samplerate and if look other features, it beats these other named models. There is true dual timebase ALT, there is best Equal Time sample mode. SCPI commands if need, good UI but not perfect. If look its dirty cheap price (specially CNL model what short time ago factory set for special offers).
If you need more sampling memory, drop out this CNL model and look CML model if ypu look Siglent.
Only Owon in this group is DSO others are more or less DPO's.
It means that Owon waveform update rate is slow.. but... this is not whole truth. It depends settings. Example Hantek. With long memory selected you can count with eyes this waveform update rate...1...2...3...4.. but Owon run even with 10M memory faster than your eyes. (of course exept if horizontal time/div do not reject it.. this can not make faster even fastest RTO)
Owon is also alone with thin design and battery option and external SVGA (in V models)
I have used these Hantek, Owon, Siglent, Rigol etc but my opinion is that useability (Human interface) in this group is Siglent and Hantek.
But signal ADC fidelity and fast sampling rate Owon outperforms these all. Also Owon 100MHz model analog BW is around 170Mz and over. (in middle range of voltages over 200MHz)
Today also Siglent building quality is acceptable (and very good in its price class)
There is available SDS1072CNL inside pictures also in forum.
Small detail, Siglent is only what have real glass over TFT.
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