[mcline]

Andrew, I have noticed effects on the measurements when calculating channel power with the following code:
//Calculate total/Channel power
double TotalSpecPower = 0;
double linearpower = 0;
double minbinsize = RBW / 3.2;
double minFFT = 80e6 / minbinsize;
double order = Math.Ceiling(Math.Log(minFFT, 2)); //Log, base 2, of minFFT
double fftSize = Math.Pow(2, order); // 2^order
var nWindowBW = (RBW * fftSize) / 80e6;

for (int i = 0; i < FFTBIN.Length; i++)
{
linearpower = linearpower + Math.Pow(10, ((FFTBIN[i]) / 10));

}
ChannelPower = Math.Round(10 * Math.Log10((linearpower / nWindowBW)), 2);

When using version 3.5.16 or earlier, the channel power from the code above matches Spike, but when I use version 3.6 or later, the channel power from the code above does not match the Spike channel power. I see about a 2.5 to 3db difference.
Am I missing something in the channel power calculation code?

Thanks
Michael

[mcline]

Andrew,
Thanks for the response.
Sorry, yes I am using a BB60. And always use the default shape of flat top. See attached images.

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[mcline]

Thanks Andrew. I would be very very interested in a 44 GHz generator, and the SM435B for 5G mm wave testing.
Please let me know if you decide to build a 44GHZ generator.
mcline@wilsonelectronics.com

Thanks
Michael

[mcline]

Thanks Andrew

[mcline]

Thanks Andrew.

[mcline]

Thanks Andrew, I was able to get the external trigger working.

Michael

[mcline]

Thanks Andrew. I checked the SDK(06_21_21):
\signal_hound_sdk\device_apis\vsg60_series\win\examples\cpp, and only found reference to basic_generation, complex_freq_hopping, and open_device. I did not find any examples for triggering.

[mcline]

Andrew, thank you for the response. I did not have the latest version. It works now that I have updated…

mlc

[mcline]

Justin, thanks for the quick response.

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