开云体育

Nuts to measuring SWR. Consult the Smith Chart. There is far more information there than SWR! Dave - W?LEV [email protected]> wrote: -- *Dave - W?LEV*

Would the level error happen only when higher than 1 GHz or already when higher than 800 MHz? -- Designer of the tinySA For more info go to https://tinysa.org/wiki

Radenovakovich, if the frequencies are equidistant, you can explore the SWEEP of the Signal Generator mode, there you can define the SPAN, a minimum of 25 steps (sweep points), in a maximum of 10

all the selftest and level calibration terms are succeed but I found my device has significantly level error when frequency higher than 1GHz,some time the error can be bigger than 10db lower,even

Does level calibration and selftest succeed? It could be the input switch or the attenuator -- Designer of the tinySA For more info go to https://tinysa.org/wiki

I already set my tinysa ultra as internal 10db attenuation,but the results is same. actually no matter how much attenuation value I set,the measured impendance isn't 50Ohm Does it means the input

Measured with LiteVNA 0 dB attenuation, no LNA, spec status for accurate input impedance you must use at least 10 dB attenuation 10 dB attenuation, no LNA LNA active -- Designer of the tinySA For

I use the LiteVNA to measure the input impendance of tinysa ultra,but the results is strange:the SWR is too high,means the input impendance isn't 50Ohm I set the sa as 30db attenuate,0db attenuate and

This discrete sweeping is best done by controlling the tinySA via the serial over USB interface. -- Designer of the tinySA For more info go to https://tinysa.org/wiki

Is it possible to output for example 12 different frequencies where the dwelling time for each frequency would be for example 2 minutes so that the duration of such a single output session would last

Thank you Eric I'll buy from one of the safe stores

Ok then ordering u22 14 Tem 2024 Paz 19:54 tarihinde Erik Kaashoek via groups.io <erik= [email protected]> ?unu yazd?:

This is consistent with a faulty switch at the input -- Designer of the tinySA For more info go to https://tinysa.org/wiki

When I enable LO mode I get about -9.7dB from CAL port. On signal generator mode, when I set 2.4 GHz, -18.5 dB output (cant go higher than this) I measure -26.5 dB Erik Kaashoek via groups.io

This hints at a blown input switch. Could you check with your power detector if the output in signal generator mode is also 10 dB low? E.g. maximum -28 dBm instead of the indicated -18 dBm? The wiki

Hello,I bought my tinysa ultra from zeenko store in 2023.. When I tried to make selftest with 1.4.175 version i had "test 3" failing.. My cable is a 18 ghz test cable so I dont think it is a cable

The one I have, that's blown, has tiny toggle switches. Bruce Hawkins AC6DN

I have a blown Kay attenuator. So I assume the schismatic in in the linked service manual. This should be very helpful. When I get unpacked from moving. Bruce Hawkins AC6DN

Ah OK, that explains how they managed to get the performance up to 1GHz. It's a variation of the construction method used in the push button types. Regards, Martin

Hi Martin Thanks for your reply. I'm afraid it's not that easy. It's been many years since I tried to get it repaired, but as far as I remember, these are custom switches, where a gold plated slider