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Knowledge Base Spectrum Analysers

How do I measure an RF Bandpass filter

Posted on: December 14th, 2020 by Doug Lovell

14/12/2020
This document provides step-by-step instructions on using the Rigol DSA-800 series of Spectrum Analysers to measure the characteristics of an RF Bandpass filter. NOTE: The DSA must have a Tracking Generator to effectively perform the following test. Normalize the trace (Optional) Many elements in an RF signal path can have nonlinear characteristics. In many cases, these nonlinear effects on...

EMC Precompliance: Testing on a budget

Posted on: December 14th, 2020 by Doug Lovell

14/12/2020
Solution: Almost any electronic design slated for commercial use is subject to EMC (Electromagnetic Compatibility) testing. Any company intending to sell these products into a country must ensure that the product is tested versus specifications set forth by the regulatory body of that country. Here in the US, the FCC specifies rules on EMC testing. CISPR and IEC are also used throughout the worl...

AMK: What do you get with the DSA Advanced Measurement Kit ? (DSA1000-AMK)

Posted on: December 14th, 2020 by Doug Lovell

14/12/2020
Advanced Measurement Functions Option DSA1000-AMK provides plenty of advanced measurement functions including T-Power (Time domain Power), ACP (Adjacent Channel Power), Chan Pwr (Channel Power), OBW (Occupied Bandwidth), EBW (Emission Bandwidth), C/N Ratio, Harmo Dist (Harmonic Distortion), TOI (Third Order Intermodulation) and Pass/Fail. The measure mode can be Single or Continuous and you can c...

Is there an attenuator built-in on RIGOL’s DSA815?

Posted on: December 14th, 2020 by Doug Lovell

14/12/2020
Yes, but you should still take care never to exceed the DSA815's max input power or voltage (+20dBm or 100mW and 50VDC abs. max - pulsed waveforms can easily exceed this e.g. direct from a LISN - see below). The DSA internal attenuator function is variable to give relative 0-30dB and whilst it does not increase the permissible power, it is designed to allow the instrument to optimise its dynamic r...

I just received mine… how can I tell if it’s working OK?

Posted on: December 14th, 2020 by Doug Lovell

14/12/2020
First follow the procedure for Factory Reset. Then check the noise performance is as it should be. You will need a carefully sequence of settings for this… use the quick video tip on our RIGOL pages....

How to reduce or lower noise floor? (DSA815 and DSA1030)

Posted on: December 14th, 2020 by Doug Lovell

14/12/2020
How to reduce or lower noise floor? (DSA815 and DSA1030) Last Updated: 01/08/2014 A simple sequence of settings will help you dig into the noise floor. With any Spectrum Analyser, setting up the (1) Span, (2) Attenuator, (3) Pre-amp and (4) Resolution Bandwidth settings - these are all important starting points to getting the best noise floor. Remember, safety first (no input or power RF nearby)...

How to get the specified DANL of -135dBm? (typ, +6dB f/GHz)

Posted on: December 14th, 2020 by Doug Lovell

14/12/2020
A simple sequence of settings will help you dig into the noise floor. With any Spectrum Analyser, setting up the (1) Span, (2) Attenuator, (3) Pre-amp and (4) Resolution Bandwidth settings - these are all important starting points to getting the best noise floor. Remember, safety first (no input or power RF nearby) and try adjusting these four settings to find out more about what to turn on, and o...

How do radio amateurs use RIGOL’s DSA815? And for what kinds of applications?

Posted on: December 14th, 2020 by Doug Lovell

14/12/2020
Some simple examples of useful Radio Club application: An FM Broadcast Station was causing interference to our 2m to 4m transverter. This corresponded to an FM station which was recently launched. There were no problems before this Broadcast station went live: "We were able to identify all of the transverter RX output signals (wanted and spurious)" On the DSA815-TG the tracking generator can be us...

How do I check my DSA is working properly?

Posted on: December 14th, 2020 by Doug Lovell

14/12/2020
Follow these instructions showing you how to do some quick checks on performance. You'll know what performance to expect. They start with a handy factory reset and calibrate....

How do I add a horizontal Display Line to my DSA screen?

Posted on: December 14th, 2020 by Doug Lovell

14/12/2020
There is a handy video reminder here showing many functions you can use on your DSA - many are under-used so don't miss out on them check it for some useful features!...

Are there any independent reviews of RIGOL Spectrum Analysers like DSA815 in the UK?

Posted on: December 14th, 2020 by Doug Lovell

14/12/2020
Yes, RSGB's RADCOM reviewed the DSA815-TG. (The relevant issue is RADCOM May 2013 pp36-39 N.B. accidentally omitted from the issue contents page!) There's lots of good comment about this from leading affiliated Radio Club where they have blogged about DSA...

How do I connect my instrument via my LAN to UltraSigma PC Software?

Posted on: December 14th, 2020 by Doug Lovell

14/12/2020
First of all, ensure your instrument as the option for LAN connection and ensure you have a PC running the latest version of UltraSigma download from RIGOL and this PC is successfully connected to the same local area network as you're plugging your instrument into. In order for you to connect your Rigol equipment via LAN you must: Ensure your instrument is connected through the LAN...

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Knowledge Base DSA800 Series (70)

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Knowledge Base SSA3000X-R Series (1)

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