The essential accessory for accurate conducted emission results
With 13 filter bands and 9KHz – 30MHz frequency range (Band A & B), the RF915 is our more advanced Pre-selector. If you only need to utilise frequencies between 150KHz – 30MHz (Band B) take a look at our RF910 model.
Strong broadband signals encountered during mains conducted compliance tests are a common cause of spectrum distortion and compression leading to false results on spectrum analysers. For this reason, CISPR16 specifies the use of pre-selectors.
Pre-selectors split the frequency content into relatively narrow bands and allow only one band at a time through to the analyser.
Band switching is synchronised with the analyser sweep. Thus the energy input to the analyser is substantially reduced, avoiding overload (compression) problems, without affecting the final result.
The performance of the analyser is thus enhanced and the overall system is similar to that of a measuring receiver, as required by CISPR16.
Typical sources that cause broadband noise are electric motors, power controllers, lighting controllers and industrial plant.
- Self contained, automatic Pre-selectors.
- Can substantially improve measurement accuracy of EMC test results.
- Can be used with any RF spectrum analyser for the measurement of strong or broadband conducted EMC emissions.
- Manual and automatic control. USB interface and command set included.
CISPR16
These pre-selectors made true compliance practical and affordable.
AUTOMATIC
The Laplace range of EMC analysers all include automatic detection and control of these pre-selectors for fully transparent operation.
EASE
Adding a pre-selector to your conducted emissions kit eliminates out-of-band noise, making measurements easier and significantly more accurate and quicker.
Specification
| Specification | RF910 | RF915 |
| Frequency range | 150KHz – 30MHz | 9KHz—30MHz |
| Number of filter bands | 8 | 11 |
| input/output impedance | 50 ohm | |
| Input/output connectors | BNC | |
| Insertion loss | 4dB | |
| Pass band flatness | 2.5dB | |
| Stop band attenuation | 40dB | |
| Filter performance | 5 + 5 pole | |
| Control auto mode | USB | |
| Control manual mode: | Paddle switch | |
| Indication | Mode and channel indicators | |
| Max signal level | +30dBm | |
| Power | 110/230v 50/60Hz IEC inlet. | |
| Size (W x H x D) | 31 x 11 x 26cm | |