Discontinued model - The Comparison Noise Emitter VII
Unique in the market place, the CNE VII provided continuous radiated output up to 7GHz.
- Continuous, broadband output
- Full spectrum measurements and analysis
- Stable output
- Repeatable measurements
- 1.5 GHz to 7 GHz output
- Measurements at today’s operating frequencies
- Compact and Portable
- Comparisons between sites and environments
- Battery powered
- No power or interconnecting cable effects on measurements
Radiated Emissions
The CNE VII is a broadband noise source which provides continuous output power from 1.5GHz to 7GHz. The broadband nature of the output enables the observation of details within this band of the spectrum which would be missed with a comb generator. An integral antenna is housed in the top of the unit. The CNE VII is an ideal source for carrying out checks on open area test sites (OATS) and anechoic chambers.
The CNE VII is battery powered to allow operation as an independent source without the effect of power or interconnecting cables, which would modify the fields generated. The CNE VII is housed in a cylindrical metal enclosure ensuring uniformity of the radiated field and allowing it to be orientated to give either vertical or horizontal polarised fields. The metal enclosure also allows the unit to be mounted in direct contact with a metal ground plane as may be required by some tests.
Applications
- Comparisons between different measurement environments such as OATS or anechoic chambers
- Radiated measurement systems validation and verification.
- Reference source for:
- Daily pre-test checks as required by the accreditation authorities, eg ISO17025
- Long-term performance monitoring
- Investigation of screened room behaviour
- Shielding effectiveness measurements
- Spectrum analyser / receiver pre-check
Specifications
| Specifications | |
|---|---|
| Frequency Range | 1.5 GHz to 7 GHz radiated using an integral antenna |
| Output connector | N/A |
| Temperature stability | 20°C to 35°C <1dB |
| Time stability | Projected <1dB over a 12 month period |
| Dimensions | 150mm diameter × 150mm including battery pack |
| Weight | 4kg (including battery pack) |
| Power supply | 8V, 5AHr rechargeable battery pack. Supplied with charger |
| Operating time | 7 hours typical with fully charged battery pack |
| Indicators | Power on - green LED |
| Battery low - red LED | |
Standard Order Kits
We're sorry, the CNE VII is no longer available to order. Our CNE III and CNE V+ provide continuous noise to 3.5 GHz (usable to 5 GHz).
Output Measurement Results
| Type | Order Nº | Description |
|---|---|---|
| Radiated Output | CAL07 | 1GHz to 7GHz horizontal and vertical polarisation electric field strength in FAR using a spectrum analyser at 3m |
Typical Output Measurement Results
Further details can be obtained from:
York EMC Services LtdUniversity of York
Heslington
York
YO10 5DD Tel: +44 (0)1904 324440
Fax: +44 (0) 1904 324434
E-mail: enquiry@yorkemc.co.uk
Last checked: 2010-Mar-31
