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Proxies\__CG__\App\Entity\Entry {#1585
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+magazine: Proxies\__CG__\App\Entity\Magazine {#1525 …}
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+domain: Proxies\__CG__\App\Entity\Domain {#1618 …}
+slug: "Siglent-SDS1104XE-slanted-square-wave"
+title: "Siglent SDS1104XE: slanted square wave"
+url: "https://imgur.com/a/T6tM0HB"
+body: """
Hi!\n
\n
I’ve asked Siglent support but after a couple of responses the thread went cold. Maybe I’m being dumb but I’ve noticed that there’s a frequency (low, around 100Hz) where scope response changes a bit. Below and above it square input looks square. Right about it square input looks slanted.\n
\n
I tried to do a very slow “sweep” and there’s small but visible change in the envelope. So, e.g. with a constant 600mV p2p input lower frequencies measure exactly that while higher ones measure 612mV, so ~2% diff.\n
\n
Terminated 50Ohm cables (not that it matters at such a low freq) to be sure. Latest firmware, after full self-cal. Siggen itself seems allright, I have an ancient Tek scope and the siggen output looks Ok there with same input/same cables. Scope seems happy and fully functional otherwise, few years old though, out of warranty.\n
\n
Has anyone else seen anything like that? Is this a normal behavior within the expected margin of error?\n
\n
Thanks!
"""
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Show voter details
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edit
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Proxies\__CG__\App\Entity\Entry {#1585
+user: Proxies\__CG__\App\Entity\User {#2471 …}
+magazine: Proxies\__CG__\App\Entity\Magazine {#1525 …}
+image: null
+domain: Proxies\__CG__\App\Entity\Domain {#1618 …}
+slug: "Siglent-SDS1104XE-slanted-square-wave"
+title: "Siglent SDS1104XE: slanted square wave"
+url: "https://imgur.com/a/T6tM0HB"
+body: """
Hi!\n
\n
I’ve asked Siglent support but after a couple of responses the thread went cold. Maybe I’m being dumb but I’ve noticed that there’s a frequency (low, around 100Hz) where scope response changes a bit. Below and above it square input looks square. Right about it square input looks slanted.\n
\n
I tried to do a very slow “sweep” and there’s small but visible change in the envelope. So, e.g. with a constant 600mV p2p input lower frequencies measure exactly that while higher ones measure 612mV, so ~2% diff.\n
\n
Terminated 50Ohm cables (not that it matters at such a low freq) to be sure. Latest firmware, after full self-cal. Siggen itself seems allright, I have an ancient Tek scope and the siggen output looks Ok there with same input/same cables. Scope seems happy and fully functional otherwise, few years old though, out of warranty.\n
\n
Has anyone else seen anything like that? Is this a normal behavior within the expected margin of error?\n
\n
Thanks!
"""
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|
Show voter details
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moderate
|
Proxies\__CG__\App\Entity\Entry {#1585
+user: Proxies\__CG__\App\Entity\User {#2471 …}
+magazine: Proxies\__CG__\App\Entity\Magazine {#1525 …}
+image: null
+domain: Proxies\__CG__\App\Entity\Domain {#1618 …}
+slug: "Siglent-SDS1104XE-slanted-square-wave"
+title: "Siglent SDS1104XE: slanted square wave"
+url: "https://imgur.com/a/T6tM0HB"
+body: """
Hi!\n
\n
I’ve asked Siglent support but after a couple of responses the thread went cold. Maybe I’m being dumb but I’ve noticed that there’s a frequency (low, around 100Hz) where scope response changes a bit. Below and above it square input looks square. Right about it square input looks slanted.\n
\n
I tried to do a very slow “sweep” and there’s small but visible change in the envelope. So, e.g. with a constant 600mV p2p input lower frequencies measure exactly that while higher ones measure 612mV, so ~2% diff.\n
\n
Terminated 50Ohm cables (not that it matters at such a low freq) to be sure. Latest firmware, after full self-cal. Siggen itself seems allright, I have an ancient Tek scope and the siggen output looks Ok there with same input/same cables. Scope seems happy and fully functional otherwise, few years old though, out of warranty.\n
\n
Has anyone else seen anything like that? Is this a normal behavior within the expected margin of error?\n
\n
Thanks!
"""
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} |
|
Show voter details
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DENIED
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6 |
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moderate
|
App\Entity\EntryComment {#1640
+user: App\Entity\User {#265 …}
+entry: Proxies\__CG__\App\Entity\Entry {#1585
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+url: "https://imgur.com/a/T6tM0HB"
+body: """
Hi!\n
\n
I’ve asked Siglent support but after a couple of responses the thread went cold. Maybe I’m being dumb but I’ve noticed that there’s a frequency (low, around 100Hz) where scope response changes a bit. Below and above it square input looks square. Right about it square input looks slanted.\n
\n
I tried to do a very slow “sweep” and there’s small but visible change in the envelope. So, e.g. with a constant 600mV p2p input lower frequencies measure exactly that while higher ones measure 612mV, so ~2% diff.\n
\n
Terminated 50Ohm cables (not that it matters at such a low freq) to be sure. Latest firmware, after full self-cal. Siggen itself seems allright, I have an ancient Tek scope and the siggen output looks Ok there with same input/same cables. Scope seems happy and fully functional otherwise, few years old though, out of warranty.\n
\n
Has anyone else seen anything like that? Is this a normal behavior within the expected margin of error?\n
\n
Thanks!
"""
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} |
|
Show voter details
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edit
|
App\Entity\EntryComment {#1640
+user: App\Entity\User {#265 …}
+entry: Proxies\__CG__\App\Entity\Entry {#1585
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+domain: Proxies\__CG__\App\Entity\Domain {#1618 …}
+slug: "Siglent-SDS1104XE-slanted-square-wave"
+title: "Siglent SDS1104XE: slanted square wave"
+url: "https://imgur.com/a/T6tM0HB"
+body: """
Hi!\n
\n
I’ve asked Siglent support but after a couple of responses the thread went cold. Maybe I’m being dumb but I’ve noticed that there’s a frequency (low, around 100Hz) where scope response changes a bit. Below and above it square input looks square. Right about it square input looks slanted.\n
\n
I tried to do a very slow “sweep” and there’s small but visible change in the envelope. So, e.g. with a constant 600mV p2p input lower frequencies measure exactly that while higher ones measure 612mV, so ~2% diff.\n
\n
Terminated 50Ohm cables (not that it matters at such a low freq) to be sure. Latest firmware, after full self-cal. Siggen itself seems allright, I have an ancient Tek scope and the siggen output looks Ok there with same input/same cables. Scope seems happy and fully functional otherwise, few years old though, out of warranty.\n
\n
Has anyone else seen anything like that? Is this a normal behavior within the expected margin of error?\n
\n
Thanks!
"""
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moderate
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App\Entity\EntryComment {#1640
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+slug: "Siglent-SDS1104XE-slanted-square-wave"
+title: "Siglent SDS1104XE: slanted square wave"
+url: "https://imgur.com/a/T6tM0HB"
+body: """
Hi!\n
\n
I’ve asked Siglent support but after a couple of responses the thread went cold. Maybe I’m being dumb but I’ve noticed that there’s a frequency (low, around 100Hz) where scope response changes a bit. Below and above it square input looks square. Right about it square input looks slanted.\n
\n
I tried to do a very slow “sweep” and there’s small but visible change in the envelope. So, e.g. with a constant 600mV p2p input lower frequencies measure exactly that while higher ones measure 612mV, so ~2% diff.\n
\n
Terminated 50Ohm cables (not that it matters at such a low freq) to be sure. Latest firmware, after full self-cal. Siggen itself seems allright, I have an ancient Tek scope and the siggen output looks Ok there with same input/same cables. Scope seems happy and fully functional otherwise, few years old though, out of warranty.\n
\n
Has anyone else seen anything like that? Is this a normal behavior within the expected margin of error?\n
\n
Thanks!
"""
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