R&S® RTA4004 - Page 1
Forum section: electronics / testgear

author: egonotto
author_rank: Super Contributor
timestamp: June 11, 2019, 07:50:24 pm
content: Hello,in the data sheet of the RTA4004 iswritten:"Arbitrary sample rate max. 10 Msample/s".I guess this is not correct.Too in the data sheet is:Analog bandwidth (–3 dB) at 50 Ω input impedanceR&S®RTA4004 with -B2410 option > 1 GHzat 1 MΩ input impedanceR&S®RTA4004 with -B2410 option > 500 MHz (meas.)Why is the bandwidth (–3 dB) at 50 Ω input impedance not measured?Best regardsegonottoPS: I believe that measured values for RTA4004 are important because in the Calibration Certificate is written:"All measured values are within the data sheet specifications"

author: egonotto
author_rank: Super Contributor
timestamp: June 12, 2019, 07:33:15 am
content: Hello,it seems a sample in memory is 16 bit.Enclosed the screen and the binary in LSB formatBest regardsegonotto

author: egonotto
author_rank: Super Contributor
timestamp: June 12, 2019, 08:25:34 pm
content: Hello,how can I load a file for the arbitrary generator.WGENerator:ARBitrary:NAME "D:/GEN_ARNC.CSV"orWGENerator:ARBitrary:NAME "D:GEN_ARNC.CSV"orWGENerator:ARBitrary:NAME "D:\GEN_ARNC.CSV"orWGENerator:ARBitrary:NAME "D:\\GEN_ARNC.CSV"got always 0,"No error".But thenWGENerator:ARBitrary:OPENI always got -200,"Execution error"GEN_ARNC.CSV is the file I take from Computer\Rohde&Schwarz RTA4004\Internal Storage\REFERENCEBest regardsegonotto

author: egonotto
author_rank: Super Contributor
timestamp: July 04, 2019, 01:49:15 pm
content: Hello,I try to measure the BW of the RTA4004 with 1GHz option.As I have no signal generator a credible measure is not possibleI use the tracking generator from RIGOL DSA815TG and the trigger out from RIGOL DS2072The measure will compared with Agilent DSO6104LWith the tracking generator from RIGOL DSA815TG I generate a few frequency and measure their amplitudes with the both scopes.I always use the same BNC cable. The input of the scopes are 50 OhmThe result is in BW_040719.txt and BW_040719.jpg to see.The problem of this measure lie in the fact that the amplitude of the TG is not constant with frequency.If I trust the DSA815TG the amplitude at 1000MHz is about -1 dB lower than the amplitude at 100MHz. So the -3dB point in the data is at -4dB.I do a new measure for RTA4004 with FFT and correction from the measured amplitude from DSA815TG. But now I have the Level Measurement Uncertainty <0.8 dB from DSA815TG.If the measured amplitude from DSA815TG is correct I got 1150MHz BW for C4 from RTA4004 (RTA4004_BW.jpg).Eventually I measured the rise time and fall time from trigger out of the RIGOL DS2072 with RTA4004 (ft_9.png) and DSO6104L (ft_11.png).What do you think about?Best regardsegonotto

author: egonotto
author_rank: Super Contributor
timestamp: January 25, 2020, 09:28:20 am
content: Hello,meanwhile I got the protocol for my Calibration Certificate.The bandwidth of my RTA4004 is a little over 1 GHz. (Better than -2.6dB at 1 GHz)Best regardsegonotto

author: YetAnotherTechie
author_rank: Regular Contributor
timestamp: January 25, 2020, 10:33:10 pm
content: Hello,Quote from: egonotto on January 25, 2020, 09:28:20 amWhat do you mean by this?thank you

author: egonotto
author_rank: Super Contributor
timestamp: January 26, 2020, 02:19:58 pm
content: Hello,@YetAnotherTechie: I send you a PMBest regardsegonotto