User Forum

Would you be able to provide a statement of volatility?

I need some help with my TBS1064. When I first turns on the unit, it runs through the regular startup check, and I gets an error message stating that there is no acquisition for channels 1 and 2. Several reboots have been attempted with no success. How can I troubleshoot this problem?

My TDS2024 does not power up properly. When turned on the front panel LEDs blink. Sometimes after an hour or so the unit will come on and operate. I suspect a power supply problem but I am not sure if this product is still supported. Can you help?

I believe that it is possible to to achieve greater than 3kV using two 2657As. By having one unit force +3kV referenced to ground and the other to force -3kV referenced to the same ground, thus providing 6kV across the device under test. Is their any risk of damage to either 2657A. Is there a recommended connection for the guards and sense given this configuration?

We are using a MSO4104B with a DPO 4EMBD embedded module to translate SPI communications. We are able to capture about 60ms of data but this is not the entire data stream. Is there a way to set to scope up to save all the communications for about 10 seconds?

I've been setting up the MDO34 to a few different function generators in an attempt to read a signal using the RF channel. In terms of visibly seeing a response at high frequency, there isn't any issue. For sine waves, pulses, ramps, etc. there aren't any issues. However, in the low range of the spectrum at 10Hz to 1.5 kHz, the response is generally quite slow without adjusting the RBW. Lowering the RBW helps with the speed of the acquisition - but the reading seems to changes drastically from what is being sent to the MDO34. For example, providing a 30.0000Hz, 10.0Vpp signal into the RF, the MDO34 periodically recognizes 30.6kHz - 30.8kHz peaks at ~ -35.7dBm. There's some expected ringing at 60kHz and 9kHZ at similarly valued peaks. The spectrogram shows a fairly noisy area around 0.00Hz, and the ringing peaks are easily identifiable but also contain a notable spread.

The RF badge settings are at:j
Reference Level:0.00 dBm
Scale: 10dB/div
Position: -2.46 div
Spectrum Traces: Normal + Peak
Detection Method: Auto
Spectrogram: On
Attenuation: 1.00 X

Waveform View Settings:
Threshold: -50.0 dBm
Excursion: 30.0 dB
Quantity: 5
Readout: Absolute
Peak Markers: On
Spectrogram: On

Graticule Style: Full
Graticule Intensity: 75.0%

Horizontal Settings:
Center Frequency: 45.000 kHz
Span: 110.000 kHz
Start Frequency: -10.000 kHz (to see 0Hz)
Stop Frequency: 100.000 kHz
RBW Mode: Auto
Span : RBW -> 20 : 1
Window: Kaiser

For the sake of clarity, the function generator I'm using is the Wavetek 10 MHz DDS Function Generator Model 29. I have used other function generators but the values I'm seeing have been independent of the input. I've checked the input using the other channels and the input is reliable from the generator. I'm connecting the output of the Wavetek to the RF input using a BNC cable. The cable is unusually long, as maybe 20ft. The distance between them is less than two feet and I don't suspect the connection is having a large effect. I used the provided adapter with the MDO34 to get the BNC into the RF channel.

I'm also making use of an external keyboard to make the oscilloscope values easier to manipulate. I don't expect this to have any effect, but I would rather err on the side of too much information than too little.

When it arrived I confirmed that the MDO34 was running the most current firmware, and I calibrated the probe used to confirm the behavior of the function generator in advance of running anything. The boot-up sequence has gone smoothly each time. Due to hard drive rules and policies I don't have an easy way to provide any images at the moment, but I may be able to later on in the correspondence.

We bought MDO34 3-BW-500 18 months ago.

We selected this model for it's range of capabilities. Spectrum Analysis capability was a key.
Spectrum Analyzer
• Frequency range: 9 kHz - 1 GHz (standard) or 3 GHz (optional)
• Ultra-wide capture bandwidth up to 3 GHz

When we try to use this function there is no response. Can you tell me why?

When we launch the Tek app software, it says "Failed to read SPC Calibration file. will use uncalibrated factory defaults until SPC has been performed" with OK button. How do I fix this?

I was trying to find in a manual how often SPC should be ran on really all of your scopes. DPO, MSO, and the older TDS models. From what I saw it stated a shift of 5°C or before a critical measurement was taken. On screen the DPO5104 states the 5°C and within 30 days but I was curious if this was documented in a manual somewhere and if it differs between oscilloscope models. I've looked through multiple manuals and didn't see a length of time anywhere.

If I purchased the P77STCABL for the TDP7000, how it is supposed to be soldered on the probe?