What kind of cable shall I use to connect GPIO port?
Micro D type cable can be used for GPIO port, an example can be found on Digi-Key.  Part number: CCA-025-I36R152
Fri, Sep 21, 2018 at 4:34 PM
What is the DANL spec on R5500-408P?
DANL for 408P is the same as for 418 but up to 8GHz. 408P uses the same daughter card as 418.
Tue, Jun 11, 2019 at 2:58 PM
Can I adjust sampling speed of R5500?
No, sampling speed could not be adjusted in R5500.  When users decimate, the sampling speed is effectively reduced. 
Tue, Oct 1, 2019 at 5:03 PM
Is there any sort of report generated after scanning across frequencies besides seeing spectrum on the user interface?
Spectrum monitoring report generated via UI or API as csv file including: time, frequency, power level, bandwidth, (any other measurements).
Mon, Jan 6, 2020 at 4:00 PM
Does ThinkRF support Automatic Gain Control?
ThinkRF does not support Automatic Gain Control at this moment.
Tue, Oct 1, 2019 at 5:01 PM
Does R5500 support phase measurement?
RTSA7550/R5500 does not support phase measurement, such as phase shift, phase noise.
Fri, Jun 14, 2019 at 5:17 PM
Can instantaneous bandwidth(IBW) be set to an arbitrary value?
IBW can be set to 100MHz (ZIF mode), 40MHz (SH mode), 10MHz (SHN mode), 100kHz (HDR mode). It can be also set to other values using Decimation for ZIF, SH, ...
Wed, Oct 16, 2019 at 2:48 PM
What is the weight of 408E?
R5500-408E wight 3 lbs, or 1360.5g.
Thu, Jul 2, 2020 at 12:09 PM
What is the min tuning resolution/freq step size for R5500/R5550/R5750?
For R5500/R5550 and R5700/R5750, the tuning resolution (or min frequency step size) is 10Hz.  Detail can be found at "[:SENSe]:FREQuency:CENTer&quo...
Tue, Aug 18, 2020 at 1:17 PM
What is the noise figure for R5500/R5550?
The noise figure of the entire tuner (including the digitizer) is reflected in the DANL of our product. Please refer to the ThinkRF R5500/R5550 Datasheet. T...
Fri, Aug 14, 2020 at 4:06 PM