guide for buy digital scope

[Davor]

You will find a calibration pin on the scope and when you hook the probe on it you'll see (or not) a square waveform.

[mohandes]

hi
All dig oscope can measure THD ?
and have logic analyser?
for this job(meanes TREASURE )need of parameters?

[Davor]

No, no, and I didn't understand the last part, but most probably no. It all depends on the depth of your purse.

[mohandes]

Sorry, this is impossible to translate. Avoid Hameg, Protec or Tektronics, usually more expensive. From website, GDS-1052U looks like some incarnation of Rigol 1052, and GDS-1072A-U is like Owon 7102, should be cheap and good enough. What is the price in $? Again, forget manufacturer name or brand or model, everything is “made in China”( No.156,Cai He Village,Sha He Town,Chang Ping District, Beijing,102206 P.R.China ). Do some web search to find out more details. These machines are more than good for that money.

ok
mr tepco my friend this week i am going to buy GDS-1072A-U
i search for all and check my money but i think it is the best choose for me.I would buy TDS-2002c but this price NIGH thrice GDS-1072A-U
ok i buy it and take photo.

if you have any idea i hear your guides?
many thanks my friend and gurus

[Tepco]

Decision is on you, but it is not technical, or even financial in nature. Point is, what you are going to do in future with electronics? If your intention is to remain in this field for longer period of time, even professionally, or to study etc, this is one thing, if this is only hobby mostly related to metal detecting is another. In first case, initial investment in somewhat better equipment is sensible decision, will pay off after some time. Idea with 1072 is my choice, however somewhat cheaper models like 1022 with less bandwidth is mostly fine, only some “future thinking” is needed, added performance vs. price, you may get short of some performance in the future. I'm still unable to figure out US$ prices from website (machine translator, usually handling Arabic well, is unable to even recognize language).If intention is mostly MD hobby, simply buy cheapest thing you can find, will be good enough, better than none. Iwatsu mentioned earlier is just fine, bit old, but well built Japanese machine, will be fine, just dont pay more than 100$ for it (well maybe 150, your country is in specific situation, things can be bit more expensive, I have great experience wit that).

[mohandes]

Decision is on you, but it is not technical, or even financial in nature. Point is, what you are going to do in future with electronics? If your intention is to remain in this field for longer period of time, even professionally, or to study etc, this is one thing, if this is only hobby mostly related to metal detecting is another. In first case, initial investment in somewhat better equipment is sensible decision, will pay off after some time. Idea with 1072 is my choice, however somewhat cheaper models like 1022 with less bandwidth is mostly fine, only some “future thinking” is needed, added performance vs. price, you may get short of some performance in the future. I'm still unable to figure out US$ prices from website (machine translator, usually handling Arabic well, is unable to even recognize language).If intention is mostly MD hobby, simply buy cheapest thing you can find, will be good enough, better than none. Iwatsu mentioned earlier is just fine, bit old, but well built Japanese machine, will be fine, just dont pay more than 100$ for it (well maybe 150, your country is in specific situation, things can be bit more expensive, I have great experience wit that).

Hi my friend
i want buy digit scope and i explain to you this:
32000Rial(iranian money)= 1 Dollar(USA money){my country have very bad Economy }


my hobby & job is more metal detector and elec project (Student or in university)and ect.is it good for them?

and about the 1072a ; this lcd is 5.7inch(144.78 mm) it is not small OR GOOD?
And can show all abou the trigger wave(have Ability to show that correctly)??/
i going to get my Thesis about to make inverter(Dc to Ac ,100Watt or higher) and i dont know can measure THD or no by GDS-1072a?

finall question ; what is the different between the mark of ,TEC ,HAMEG,GW instead , proteck and ...?

sorry man my english is not well as you
regards

Edit : MD hobby ??what is this??/

[mohandes]

thanks all
i buy GDS-1072A-U
cheers