Micsig Technical Support join in EEVblog

[fishandchips]

I sent an email to amercia@micsig.com but it does not work. Could you please post your answers here? If the scope is not functioning correctly, I need to return it to your company. Thanks.

[jacklee]

Hi Micsig,

I want to get an official confirmation from you.

I have seen the screenshots of the mini posted by some forum members. Their signal curves look solid but mine are not. Could you please check if there is anything wrong with my scope?


I connected a function generator to the oscilloscope and observed the following:

1. The measured amplitude and frequency are slightly different across the channels. Is this normal?

2. While the horizontal lines of the square wave on Channel 3 are straight and horizontal, those of Channel 4 are slightly tilted. How come?

The horizontal lines on Channel 1 are slightly tilted and not straight. In the case of Channel 2, the tilting is very bad. Can you please tell me what is going on? Is there something wrong with my scope? I did not make any adjustment on the function generator while I did the testing.


Screenshots

Channel 1: https://ibb.co/jqQe7v
Channel 2: https://ibb.co/hXP6nv
Channel 3: https://ibb.co/kioAEa
Channel 4: https://ibb.co/d8Wmnv


Next, I did the self adjust. I observed the following:

3. It looks like a new issue came out which did not happen before. i.e. some horizontal lines became dotted lines. See the two green lines at the bottom (on channel 4) for example.  How the lines are dotted rather than solid like before the self adjust?

4. In Channel 1, the yellow horizontal lines are not very straight.

Channel 1:  https://ibb.co/kT8Wpa
Channel 2:  https://ibb.co/eYMUaF
Channel 3:  https://ibb.co/mTUt2v
Channel 4:  https://ibb.co/dYANvF


Then, I calibrated the four probes and observed the following:

5. In Channel 1, the horizontal lines are dotted ones rather than solid horizontal. Same as those in Channels 3 and 4.

6. In Channel 2, the top left of each square wave are cornered. The bottom corner of each square wave seemed ok. However, when I turned the knob of the prob to make the top left corner of each square wave a straight 90 degree angle, the bottom ones became cornered.

7. In Channel 4, how come I cannot make the top three horizontal lines straight? They are still wave-like even after Self Cal and probe compensation.


Channel 1: https://ibb.co/dMAG7v
Channel 2: https://ibb.co/bPtEua
Channel 3: https://ibb.co/fQPyLF
Channel 4: https://ibb.co/b4pXfF

No any offense, but I think this issue is easy to solve, just see this post: https://www.eevblog.com/forum/beginners/beginners-guide-to-digital-oscilloscope/msg1165327/#msg1165327

Get solution from Chapter 4 Probe Compensation Calibration

[PlainName]

I sent an email to amercia@micsig.com but it does not work.

Perhaps there's a type in the email address, which is why it doesn't work. Try, instead, america@micsig.com

[Micsig_support]

I sent an email to amercia@micsig.com but it does not work.

Perhaps there's a type in the email address, which is why it doesn't work. Try, instead, america@micsig.com

sorry, it is our mistake. The correct email is america@micsig.com.

[exe]

I think on my unit display is always on when AC adapter is plugged (though backlight is off). This is hard to notice, but under direct light it is possible to see the battery image. Exactly the same image after pressing power button once. I can't make a photo as contrast is too low for my phone's camera.

I'm a bit worried pixels may burn-in and make persistent image (happened to my MVA display once). Micsig, could please check on this?

[don.r]

Hello Micsig_support,

I am deciding whether to get a TO1104 for my son who is a 3rd year EE student. Will there be another sale on these like last year? I'll probably opt for the full 28Mbit model with battery and 500uV. I assume all the new models will ship with decoding enabled.

[Micsig_support]

Hello Micsig_support,

I am deciding whether to get a TO1104 for my son who is a 3rd year EE student. Will there be another sale on these like last year? I'll probably opt for the full 28Mbit model with battery and 500uV. I assume all the new models will ship with decoding enabled.

Hello,

can you email to sales@micsig.com. and tell them you are a member of EEVblog, and they may provide you a good price.

28Mpts ,500uv  and decoding are included in TO1104. and pls tell them if you need the battery or not.

[don.r]

Hello Micsig_support,

I am deciding whether to get a TO1104 for my son who is a 3rd year EE student. Will there be another sale on these like last year? I'll probably opt for the full 28Mbit model with battery and 500uV. I assume all the new models will ship with decoding enabled.

Hello,

can you email to sales@micsig.com. and tell them you are a member of EEVblog, and they may provide you a good price.

28Mpts ,500uv  and decoding are included in TO1104. and pls tell them if you need the battery or not.

Thanks, I'll do that.

[fishandchips]

Hi Micsig,

I want to get an official confirmation from you.

I have seen the screenshots of the mini posted by some forum members. Their signal curves look solid but mine are not. Could you please check if there is anything wrong with my scope?


I connected a function generator to the oscilloscope and observed the following:

1. The measured amplitude and frequency are slightly different across the channels. Is this normal?

2. While the horizontal lines of the square wave on Channel 3 are straight and horizontal, those of Channel 4 are slightly tilted. How come?

The horizontal lines on Channel 1 are slightly tilted and not straight. In the case of Channel 2, the tilting is very bad. Can you please tell me what is going on? Is there something wrong with my scope? I did not make any adjustment on the function generator while I did the testing.


Screenshots

Channel 1: https://ibb.co/jqQe7v
Channel 2: https://ibb.co/hXP6nv
Channel 3: https://ibb.co/kioAEa
Channel 4: https://ibb.co/d8Wmnv


Next, I did the self adjust. I observed the following:

3. It looks like a new issue came out which did not happen before. i.e. some horizontal lines became dotted lines. See the two green lines at the bottom (on channel 4) for example.  How the lines are dotted rather than solid like before the self adjust?

4. In Channel 1, the yellow horizontal lines are not very straight.

Channel 1:  https://ibb.co/kT8Wpa
Channel 2:  https://ibb.co/eYMUaF
Channel 3:  https://ibb.co/mTUt2v
Channel 4:  https://ibb.co/dYANvF


Then, I calibrated the four probes and observed the following:

5. In Channel 1, the horizontal lines are dotted ones rather than solid horizontal. Same as those in Channels 3 and 4.

6. In Channel 2, the top left of each square wave are cornered. The bottom corner of each square wave seemed ok. However, when I turned the knob of the prob to make the top left corner of each square wave a straight 90 degree angle, the bottom ones became cornered.

7. In Channel 4, how come I cannot make the top three horizontal lines straight? They are still wave-like even after Self Cal and probe compensation.


Channel 1: https://ibb.co/dMAG7v
Channel 2: https://ibb.co/bPtEua
Channel 3: https://ibb.co/fQPyLF
Channel 4: https://ibb.co/b4pXfF

No any offense, but I think this issue is easy to solve, just see this post: https://www.eevblog.com/forum/beginners/beginners-guide-to-digital-oscilloscope/msg1165327/#msg1165327

Get solution from Chapter 4 Probe Compensation Calibration

I have done that before posting already.

[fishandchips]

I sent an email to amercia@micsig.com but it does not work.

Perhaps there's a type in the email address, which is why it doesn't work. Try, instead, america@micsig.com

sorry, it is our mistake. The correct email is america@micsig.com.

Hello Support,

As I mentioned in my reply to your email, I need your official answers to my questions. Weeks have passed. If there is something wrong with my scope, I would like to return it for a refund. Could you please follow up? Thank you.

fishandchips

[StillTrying]

28Mpts ,500uv  and decoding are included in TO1104.

I've only seen 500uV as a paid for option that comes along with WiFi. Micsig would be much better off without all the confusing options and variations.

[nctnico]

I have seen the screenshots of the mini posted by some forum members. Their signal curves look solid but mine are not. Could you please check if there is anything wrong with my scope?

I have done that before posting already.

I don't think there is anything wrong with your oscilloscope. Look at these screendumps I just made on my TO1104:



They look the same as the images you posted.

[exe]

Hi!

Does TO1104 have Pass / Fail capability? Datasheet mentiones it, but I don't see how to set it up.

What I want to do:

1) Ideally, mask triggering, like here: https://www.picotech.com/images/uploads/software/_med/Mask-fail.png

2) Or I just want to know when my signal outside of specified range (window triggering?). E.g., I want to trigger when signal is not 5V +-0.1V.

Is any of these possible? Thanks!

[StillTrying]

Does TO1104 have Pass / Fail capability? Datasheet mentiones it, but I don't see how to set it up.

I searched on quite a few keywords and didn't find any mention or image of Micsig and pass/fail anywhere, other than the "Pass/fail Output" on the ads. Maybe it's just one of those things that's been forgotten about.

[StillTrying]

"Does TO1104 have Pass / Fail capability?"

Did anyone ever find the TO1000's Pass / Fail ?

[bill donald]

"Does TO1104 have Pass / Fail capability?"

Did anyone ever find the TO1000's Pass / Fail ?

I ask this function before, they do not have it right now. it is said it is under planning. and I am waiting.....

[kirill_ka]

Did anyone notice a problem with TO1000 ethernet connection?
FTP transfers were slow, so I tried to investigate what's happening.
It appears that packets get lost on the way from TO1000 to PC.
Some lost packets are counted as having CRC errors (/sys/.../net/eth0/statistics/rx_crc_errors) on the PC.

Code: [Select]

# ping -s 1000 10.0.0.2
PING 10.0.0.2 (10.0.0.2) 1000(1028) bytes of data.
1008 bytes from 10.0.0.2: icmp_req=1 ttl=64 time=1.21 ms
1008 bytes from 10.0.0.2: icmp_req=2 ttl=64 time=1.14 ms
1008 bytes from 10.0.0.2: icmp_req=3 ttl=64 time=1.17 ms
1008 bytes from 10.0.0.2: icmp_req=4 ttl=64 time=1.20 ms
1008 bytes from 10.0.0.2: icmp_req=5 ttl=64 time=1.19 ms
1008 bytes from 10.0.0.2: icmp_req=8 ttl=64 time=1.19 ms
1008 bytes from 10.0.0.2: icmp_req=9 ttl=64 time=1.26 ms
1008 bytes from 10.0.0.2: icmp_req=10 ttl=64 time=1.18 ms
1008 bytes from 10.0.0.2: icmp_req=11 ttl=64 time=1.15 ms
1008 bytes from 10.0.0.2: icmp_req=12 ttl=64 time=1.11 ms
1008 bytes from 10.0.0.2: icmp_req=13 ttl=64 time=1.04 ms
1008 bytes from 10.0.0.2: icmp_req=15 ttl=64 time=1.18 ms
1008 bytes from 10.0.0.2: icmp_req=18 ttl=64 time=1.04 ms
1008 bytes from 10.0.0.2: icmp_req=19 ttl=64 time=1.05 ms
1008 bytes from 10.0.0.2: icmp_req=20 ttl=64 time=1.14 ms
^C
--- 10.0.0.2 ping statistics ---
20 packets transmitted, 15 received, 25% packet loss, time 19038ms
rtt min/avg/max/mdev = 1.041/1.154/1.263/0.069 ms

I tried different cables and connections (direct connection with normal cable, crossover cable, connection through switch) - all the same.

[nctnico]

Dit you try a different cable? Many network problems are a wiring problem.

edit: I tried my TO1104. I see the same effect and with the scope application running things seem to be worse.

[kirill_ka]

Also I sniffed the ethernet signal with my TO1074 itself. It looks ok. So the problem may be happening before the ETH PHY.