Specifications
— frequency Range 25...6000 MHz, if is a chip HMC833;
— Frequency range 25...3000 MHz, if is a chip HMC830;
— Adjustment of signal power, 31.5 dB, step 0.5 dB;
— Precision setting of the frequency ~10 Hz;
— The maximum measured signal power at 1 GHz – 17 dBm;
— The maximum measured signal power at a frequency of 2 GHz 16 dBm;
— The maximum measured signal power at 3 GHz and 12 dBm;
— Power and control - microUSB.
I click on 'Details' and there seems to be nothing there?