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Hello. I have GNSS (GPS and Galileo), frequency meter with a resolution of 0.0001 Hz, 150 MHz oscilloscope, a 4.4 GHz VNA, TinySa Ultra and other devices. If I can help in any way, I can help to the

....but as has been stated here many times before damage level is far different form that which will give a realistic reading. The 8568 is different from the TinySA in that its input attenuator is

I always try to keep the signal around -30dBm so that spurs aren't a problem. The HP does have a full step attenuator so the OP's posted levels would work for HP but would be a problem for the TinySA

I think you may be getting a little confused with figure and different spectrum analyzer specs. The Tiny SA stuff is VERY sensitive, and requires a good deal more attenuation. The -30dbm figure is

QUOTE: 5W minus 40dB sounds a bit too much input level for the HP. 40 dB down from 5 watts is 4 decades in power reduction. So: 5-W > 10 dB = 0.500 W.....0.500 -W > another 10 dB =

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For a new product I'm looking for a number of testers, preferably in Europe The product is tiny and has a high resolution dual time stamping and frequency/phase measurement

5W minus 40dB sounds a bit too much input level for the HP.? ?Not at damage level by any means but above the requirement for a clean result on harmonics etc . .? ? ISTR -30dBm being the typical

It was just a solution to suppress the initial error message during flushing. I am not sure yet why this message was showing in the first place. Maybe not a problem or an indicator of some hidden

Herb thanks for the advice. I'm ordering spares and will replace the switch first Bob E - thanks I'll be getting a DC block for sure Erik thanks I'll will be using a attenuator and DC block from now

The input capacitor is around 1uF SMT. Hard to get these in high voltage. Mind you, I would like to see a slightly higher voltage cap used. But I believe the main problem is the breakdown voltage of

No DC on the input to the counter.? Not sure about input cap, I replaced the AS179-92 LF? and didn't go any further. It worked after switch replacement. Yahoo Mail - Email Simplified On Wed,

Does the counter show any DC on its input, and is the tinySA’s input cap now shorted?

Reggie,?? How were you using it at time of failure???I had mine at what I think is maximum output (-18 dbm) for 45 minutes feeding my scope without a probe and then I tee'd in a 50 ohm input

The tinySA input capacitor support inputs well below 100 kHz. This implies large capacitance in very small form factor which is not available for high voltages with acceptable cost. A separate DC

With a higher voltage coupling cap, isn’t damage still likely due to the voltage spike as it is connected to a >5V source? I’m sure Erik would have used a higher voltage cap if that weren’t the

That is why a DC Block is such an important part of your test kit. It is just a capacitor in series with the centre conductor in an SMA-M to SMA-F adaptor. Make sure it has a DC rating of at least

Assuming your unit was damaged while in the signal generator mode, the LNA was not in the signal path.? Either just the RF switch is faulty, as was the case for Bob, or also the attenuator.? I would

Herb many thanks for your reply Here are the results The SA indicates a level of -75dBm at 30MHz Switching on LNA the signal is gone completely It does look as if the LNA is faulty but not to sure

Interesting..I've not had a look at the close in stuff (yet) See