York Reference Source 03
The York Reference Source (YRS03) is a multi-mode, broadband noise and comb source that is capable of producing a continuous noise output or a comb of frequencies within the 10 MHz to 6 GHz range, with the step size being selected by the user.
This noise generator enables observation of details over the full spectral range, while the comb generator allows for the reference signal output and noise floor to be viewed simultaneously, and the frequency accuracy of measurement of equipment to be checked.
The YRS03 is a compact and battery powered, allowing operation as an electrically small source, which minimises the effect of the YRS03 itself when characterising the electromagnetic environment. The YRS03 is housed in a metal enclosure so that it can be mounted in direct contact with a metal ground plane as may be required by some tests.
The YRS03 is supplied with a 50 Ω N-type output connector for direct connection to conducted measurement systems. For radiated operation, antennas can be attached to the unit’s output connector.
Three antennas, one monocone and two monopole optimised for different frequency bands, are available.
The YRS03 is an ideal source for carrying out checks on Open Area Test Sites (OATS) and fully- or semi-anechoic chambers.
Key Features
- Selectable noise or comb output
- Stable output
- 10 MHz to 6 GHz output
- Conducted and radiated options
- Compact and portable
- Battery powered
Features/Applications
Features
- Selectable noise or comb output; flexibility across a range of applications
- Stable output; repeatable measurements
- 10 MHz to 6 GHz output; applications across a broad frequency spectrum
- Conducted and radiated options; evaluation of both conducted and radiated systems
- Compact and portable; comparisons between sites and environments
- Battery powered; no power or interconnecting cables affecting measurements
Applications
- Investigation, characterisation and comparison of different measurement environments such as OATS, FAR or SAC
- Validation and verfication of radiated and conducted measurement system, such as
- Open Area Test Sites (OATS)
- Fully Anechoic Rooms (FAR)
- Semi-Anechoic Chambers (SAC)
- Gigahertz Transverse Electromagnetic (GTEM) cells
- Reference source for:
- Daily pre-test checks as required by the accreditation authorities e.g. ISO 17025, DEF STAN 59-411
- Long-term performance monitoring
- Cable position investigation
- Investigation of screened room behaviour
- Characterisation of filter performance
- Cable loss measurements
- Measuring amplifier gain and bandwidth
- Spectrum analyser/receiver pre-check
- Inter-laboratory test programs
- Proficiency test programs
Specifications
Noise Mode
Frequency Range
- 10 MHz to 6 GHz direct connection into 50 Ω system
- 30 MHz to 6 GHz radiated using MON03 monopole and MCN03 monocone antennas
Temperature stability
- <+/-1 dB, at an ambient temperature of 15 °C to 30 °C
- <+/-1.5 dB, at an ambient temperature of 5 °C to 40 °C
Time Stability
- <1 dB typical over a 12 month period
Operating time
- 6.5 hours typical with alkaline cells
Comb Mode
Frequency Range
- 10 MHz to 6 GHz direct connection into 50 Ω system
- 30 MHz to 1 GHz radiated using TLM02 and MON03 monopole antennas
Comb Signal Step size, Selectable between
- 5 MHz (5 MHz, 10 MHz, … 3 GHz min.)
- 10 MHz (10 MHz, 20 MHz,… 3 GHz min.)
- 20 MHz (20 MHz, 40 MHz, … 6 GHz min.)
- 40 MHz (80 MHz, … 6 GHz min.)
Temperature stability
Amplitude
- <+/-1 dB, at an ambient temperature of 15 °C to 30 °C
- <+/-1.5 dB, at an ambient temperature of 5 °C to 40 °C
Frequency
- <+/- 0.5 ppm from 5 °C to 40 °C
Time stability
- <1 dB (typical over 12 month period)
- <+/-1 ppm typical over a 12 month period
Operating Time
- 14 hours typical with alkaline cells
Other
Output connector
- 50 Ω N-type socket
Dimensions
- 120 mm x 120 mm x 60 mm (79 mm including connector)
Weight
- 1 kg (including cells)
Power Supply
- 4 x 1.5 V cells (AA or equivalent). Alkaline or rechargeable
Indicators
- Active
- Low battery
Controls
- Rotary switch for mode selection including OFF
Kits
Standard Order Kits
YRS03KIT01 – Standard YRS03 reference source kit with antenna
Parts included
- YRS03 reference source
- MCN03 – 1 GHz to 6 GHz (optimum) monocone antenna
YRS03KIT02 – Enhanced YRS03 reference source kit with multiple antennas
Parts included
- YRS03 reference source
- MCN03 – 1 GHz to 6 GHz (optimum) monocone antenna
- TLM02 – 30 MHz to 300 MHz (optimum) 270 mm long top-loaded monopole antenna
- MON03 – 200 MHz to 1 GHz (optimum) 270 mm long monopole antenna
YRS Combination Kit – Enhanced YRS02 and YRS03 reference source kit with multiple antennas and LISN adapter with output range from 5 kHz to 6GHz
Parts included
- YRS02 reference source
- YRS03 reference source
- TLM02 – 30 MHz to 300 MHz (optimum) 270mm long top-loaded monopole antenna
- MON03 – 200 MHz to 1 GHz (optimum) 270mm long monocone antenna
- MCN03 – 1 GHz to 6 GHz (optimum) monocone antenna
- LSA03 – LISN adapter with IEC 320 style connector
- CAL16 – 9 kHz to 1 GHz output power measured using a spectrum analyser, all modes (YRS02 only)
All kits supplied with
- Alkaline batteries
- Hard case
- Manual
- CAL19 – 30 MHz to 6 GHz output power measurements in all modes using a spectrum analyser or receiver
Accessories
TLM01 – 200 MHz to 1 GHz (optimum) 100 mm top-loaded monopole antenna
TLM02 – 30 MHz to 300 MHz (optimum) 270 mm top-loaded monopole antenna
MON03 – 200 MHz to 1 GHz (optimum) 270 mm monopole antenna
MCN03 – 1 GHz to 6 GHz (optimum) 120 mm diameter monocone antenna
Manufacturer’s Calibrations supplied with the kit
CAL19 – Conducted output power
- 30 MHz to 6 GHz, measured using a spectrum analyser. All modes
Typical Output Measurement Graphs
