开云体育

Of course, all signals have a common frequency source (variable timing out is a special case). Raymond

I'm not sure if you realize that 2ns and 1ns aren't generated by the 5ns+ circuits; they are separated by K450-S1, which selects either all 5ns+ signals or both the 1ns and 2ns signals. The fact that

Well, surprise, surprise.? I actually looked at the plugin and I was definitely wrong on the trigger output. Trigger output valid from 0.1 us to 5 sec. In mine, you get a + spike at the appropriate

Nope, not intended nor expected. But I don't expect to see the MARKER OUT output to be putting out anything while in 1ns mode. The 1ns output on the 1ns ONLY BNC is otherwise fine - as good as my

IIRC, the marker is labeled 2ns to (whatever), which makes me suspect that there was never intended to be a marker out at 1 ns.? Haven't looked at the output, though. Harvey

I guess my next question would be: is that horrible 40mV p2p signal coming out of the MARKER OUT "normal" in 1ns mode? Yuck. I can see how mitigating coupling through the contacts of K450 could be

To a first approximation the transition wouldn't matter. I'd just use any old BNC-to-croc clips cable, and then ignore any reflections at the beginning of the trace. I wonder if intact bulbs would

Ah, misunderstood. I've looked a bit at the ST Nucleo boards, and there are some with a good CPU that have a separate USB input and output which should support the functions you want.? How to do the

Ah! Thank you Raymond. I was not clear on how the 1ns/2ns switches were operating K450. I did not get that 1ns switches K450 back off. Now that I go back and reread the Circuit Description it

When I fixed mine, I found the best tool for adjusting and looking at the two fastest outputs was a spectrum analyser. Dan

S350-1 and S350-2 are closed in the 1-2-5 ns position. With collector of Q270 low (Out of Lock filter), S450B (2ns) connects Marker Out to C515 (2ns signal) via K450-S1 K450. With 1 ns button

I've added the photo album "TG501 2ns 1ns waveforms" showing what I'm seeing switching between 2ns and 1ns modes: /g/TekScopes/album?id=270466 I suspect this is _not_ expected

Hi Jim- No, it was a very old run of romex that was installed long before we bought the house. And you're right, if they had cut it with the switch on, we'd'a known it at the time!

Hi Holger, I looked briefly at Teensy 2.x and maybe 3.x a few years back. It seemed promising. But that's as far as I got. IIRC, my understanding was that the Teensy board comes preprogrammed with

The following photos have been uploaded to the TG501 2ns 1ns waveforms ( /g/TekScopes/album?id=270466 ) album of the [email protected] group. * 20211202_113057 (Medium).jpg (

On Thu, Dec 2, 2021 at 10:56 AM, Harvey White wrote: > > Couple things on USB that might help. > > You can easily buy a TTL to USB converter.? Takes TTL level (as from > uart/usart) signals,

I just did a few experiments using a 7103 (1 Ghz) scope, in which I had a 7A29 (1Ghz) and a 7A19 (500 Mhz). Using a TG501, and having calibrated each with a PG506, you get (roughly) the following

Couple things on USB that might help. You can easily buy a TTL to USB converter.? Takes TTL level (as from uart/usart) signals, either 3.3 or 5.0 volts, and translates them to a USB signal.? That

FYI: Both my TG501's show the following at 1ns, using ordinary RG58C/U cable: In 7854/7S11/7T11A/S-4 (BW ca. 14GHz): 320mVpp in 7904 with 7A29: 200mVpp Spec for the TG501 is >= 200 mVpp @

Hi Chris! Yes, at least the Teensy 4.1 supports that mode. You can even use one of the USB ports as an HID host for incoming data and the other USB port can emulate a keybord for sending data to