Narda - Safety Test Solutions

SignalShark - Vita 49 and SCPI option: universal, transparent, essential

If you need to integrate a device into your system, or just want to operate it by remote control, you have to deal with its interfaces. What could be better than having the same interface and programming language for every device? We can’t turn the clock back to the time before the Tower of Babel, when there was just one language. But what cannot be accomplished in a human sense is almost a reality in today’s technology. “International understanding” has been achieved with SCPI as the remote-control language and Vita 49 for the output of I/Q data. If you can speak these languages, the world is wide open to you.  The Narda SignalShark is as open as it gets: its real-time bandwidth of 40 MHz is top class for a handheld device, but the ability to stream 20 MHz of this with full 16-bit resolution and compliant with Vita 49 makes it a world champion! Coupled with true receiver performance with minimal intrinsic noise and high intermodulation immunity, this means you’ll never again waste time chasing after an artefact or an image frequency. Even in difficult signal level conditions, this allows you to externally analyze and demodulate the signals. And developing a driver is as easy as pie, with full support for the SCPI remote control language. That saves even more valuable time during integration. Interested? Why not give the SignalShark Video a closer look? Or, arrange a demonstration by one of our sales Partners. You won’t be disappointed.

EMF-Safety: Area Monitoring with AMB-8059 und AMS-8063

Survey an entire town in just one day? That’s no fantasy, no illusion. The reality is the Narda Wideband Area Monitor 8059 with vehicle mounting kit. The Narda AMB-8059 was actually designed as a stationary wideband monitor for measuring the strength of electromagnetic fields such as those produced by broadcasting equipment, and mobile communications systems, as well as high tension lines. When equipped with a solar panel and cellphone modem, it can be permanently set up at points that are of public interest, measure the field strength, and post the results on the Internet, for example. It can thus make a valuable contribution to monitoring the quality of life. However, if it is mounted on the roof of a car using the new vehicle mounting kit, you can drive it round the entire area. Thanks to its built-in GPS module, the result will be a map showing the local field strength. You can even make good use of your lunch break, by simply parking the vehicle near a busy market and letting it make a “long term” measurement for an hour or so. Clever, simple, and efficient.

Most field strength measurements are made either in the low frequency range (energy providers, etc.) or at high frequencies (cellphones, broadcasting, etc.). The mid-range frequency band between them is often neglected. But there are long, medium and short wave transmitters everywhere, particularly in really big countries, and some of these have immense output power levels. Measuring and checking these is a challenge. There is an ideal sensor for the job, though: the EHP-200A from Narda. And, because it is so good, it is now available as a stand-alone Area Monitor with a solar panel to supply power. This set up is called the AMS-8063. It makes frequency selective monitoring of electric and magnetic fields in the range from 9 kHz to 30 MHz easy and convenient. Now there’s no such thing as can’t be done.

EMF-Safety: Breitband- und Selektivmessung, was ist der Unterschied?

Bei der Breitbandmessung mit dem Narda NBM erhält man ein Messergebnis für alle Dienste gemeinsam. Egal wieviel Sendeleistung von TV, FM-Radio oder Mobilfunk abgestrahlt wird oder wie viele Sender es letztendlich sind, bei der Breitbandmessung erhält man nur einen Messwert: die Summe aller Dienste. Genauso wie unser Körper, ihm ist es einerlei, ob es FM oder TV, oder FM und TV sind. Für ihn gilt: die Gesamtmenge macht’s! Hier unser NBM Video.

Ganz anders dagegen die Selektivmessung mit dem Narda SRM: bei ihr bekommt man fast beliebig viele Messergebnisse, nämlich für jeden Dienst einen. Ob man sich die gesamte Leistung aller FM Stationen anzeigen lässt oder jede FM Station einzeln, ist nur eine Frage der Einstellung des SRMs. Dieser kann das Frequenzspektrum fast beliebig „sezieren“. Das ist spätestens dann relevant, wenn der Grenzwert überschritten wird. Dann stellt sich sofort die Frage: wer ist das? Und wer muss seine Sendeleistung reduzieren? Muss man auf die Maximallast extrapolieren? Diese Fragen kann nur das Selektivmessgerät SRM beantworten. Zu unserem SRM Video.

 

 

SignalShark - High Dynamic Range HDR, what is it?

The International Telecommunication Union (ITU) has described its ideal receiver in the Spectrum Monitoring Handbook: minimal noise and high intermodulation immunity, expressed as the three parameters DANL, IP2 and IP3. It sounds simple, but it isn’t that easy to achieve. Test equipment manufacturers can tell you all about that. A normal handheld spectrum analyzer cannot by any means match the values specified by ITU. Much more is needed, preferably by including a sub-octave pre-selector filter that protects the mixer from undesirable signals, for example. By comparing the DANL, IP2 and IP3 to the ITU values in a simple diagram, the difference between a good receiver like the SignalShark from Narda and a general-purpose spectrum analyzer quickly becomes apparent:

Well? Does that intrigue you? You can find out how effectively the new SignalShark can support you in future with all your measurement tasks at: www.narda-sts.com/en/monitoring-receiver/signalshark

Would you like to see this instrument or another Narda product demonstrated? Simply contact your Narda sales partner.

--> Newsticker 1

Electromagnetic fields

These and similar questions are asked time and again by anyone concerned with or interested in the topic of safety in electromagnetic fields. Know all the answers? Or is there somewhere you can find them easily, put simply and without bias? Why not use the established know how of Narda’s HF specialists when you need to answer sensitive questions on the subject of safety in electromagnetic fields (EMF). You can download the brochure: “Everything you always wanted to know… Safety in electric magnetic and electromagnetic fields – Basic facts“? --> brochure

HP-01

The difference is too big for a normal measuring instrument, that’s for sure. The earth’s static magnetic field is around 40µT, but a nuclear magnetic resonance tomograph can easily generate between 1 and 7 Tesla. That’s around ten to the power of five times as much, or 100 dB in telecommunications engineer’s language. Even if you only have to measure the static fields of your local MRT for health and safety or environmental protection, and you never want to say “I can’t measure that”, take a look at the HP-01 from Narda. It can measure all three types of field, isotropically and in accordance with the standards. No such thing as “can’t do”. More information from: --> HP-01