BK 4087 Specifications BK 4087 BK-4087 BK4087

BK 4087 Specifications

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BK 4087 Specifications

Frequency Characteristics
Sine	1μHz ~ 120MHz
Square	1μHz ~ 40MHz
All Other waveforms	1μHz ~ 100kHz
Frequency Stability	±1x10-6 (22°C ±5°C)
Resolution	1μHz
Accuracy	≤ ± 5x10-6 (22°C ±5°C)
Data entry Units	s, ms, Hz, kHz, MHz
Waveform Characteristics
Main Waveforms (Sine, Square)
Amplitude resolution	12 bits
Sample Rate	200MSa/s
Sine
Harmonic Distortion of Sine Wave*	≤ - 50dBc (frequency ≤ 5MHz) ≤ - 45dBc (frequency ≤ 10MHz) ≤ - 40dBc (frequency ≤ 20MHz) ≤ - 35dBc (frequency ≤ 40MHz) ≤ - 30dBc (frequency > 40MHz)
THD*	0.1% (20Hz ~ 100kHz)
Square
Rise and fall time*	≤ 15ns
* = Note	Test conditions for harmonic distortion, sine distortion, rise/fall time Output Amplitude 2Vp-p, Environmental temperature: 25°C±5°C
Arbitrary
Non volatile memory	8 waveforms
Waveform length	8~16000 points
Amplitude resolution	10 bits
Frequency range	1μHz~100kHz
Sample rate	200MSa/s
Others built-in waveforms
27 build-in standard and complex waveforms	Sine, Square, Triangle, Positive Ramp, Falling Ramp, Noise, Pulse, Positive Pulse, Negative Pulse, Positive DC, Negative DC, Stair wave, Coded Pulse, Full wave rectified, Half-wave rectified, Sine transverse cut, Sine vertical cut, Sine phase modulation, Logarithmic, Exponential, Half-round, Sinx/x, Square root, Tangent, Cardiac, Earthquake, Combination
Waveform Length	4096 dots
Amplitude Resolution	10 bits
Pulse
Duty Cycle	0.1% ~ 99.9% (below 10kHz) 1% ~ 99% (10kHz ~ 100kHz)
Rise/Fall Time	≤ 100ns (Duty Cycle 20%)
DC signal characteristics
DC range	≤ 10mV – 10V (high impedance)
DC Accuracy	≤ ±5% of setting +10mV (high impedance)
Amplitude Characteristics
Amplitude Range	Freq ≤ 40MHz: 2mV ~ 20Vpp (open circuit) , 1mV ~ 10Vpp (50Ω) Freq > 40MHz: 2mV ~ 4Vp-p (open circuit), 1mV ~ 2Vpp (50Ω)
Resolution	2μVpp (open circuit), 1μVpp (50Ω)
Accuracy	± 1%+0.2mV (sine wave relative to 1kHz)
Stability	±0.5 % /3 hours
Flatness
For amplitude	≤ 2Vpp ±3% (freq≤ 5MHz), ±10% (5MHz
For amplitude	>2Vpp: ±5% (freq≤ 5MHz), ±10% (5MHz±20% (frequency>20MHz) ±1dBm (frequency>40MHz)
Output Impedance	50Ω
Output Units	Vpp, mVpp, Vrms, mVrms, dBm
DC Offset Characteristics
Offset Range (open circuit)	Freq ≤ 40MHz): ±10Vpk ac+dc (Offset ≤ 2 x pk - pk amplitude) Freq > 40MHz): ±2Vpk ac+dc (Offset ≤ 2 x pk - pk amplitude)
Offset Resolution 2μV (open circuit), 1μV (50Ω)
Offset Error	±5% of setting +10mV (Ampl. ≤ 2Vpp into open circuit) ±5% of setting +20mV (Ampl. > 2Vpp into open circuit)
Modulation
AM Characteristics
Carrier Waveforms	Sine or Square
Modulation Source	Internal or external
Internal Modulating Waveform	Sine, Square, Triangle, Rising/Falling Ramp
Frequency of modulating signal	100μHz ~ 20kHz
Distortion	≤ 2%
Modulation Depth	1% ~ 120%, 1% ~ 80% (frequency>40MHz Ampl > 2Vpp into open circuit)
Modulation Error	± 5%+0.2% (100μHz < frequency ≤ 10kHz) ±10%+2% (10kHz < frequency ≤ 20kHz)
Max. Amplitude of ext. input signal	3Vp-p (-1.5V~ +1.5V)
FM Characteristics
Carrier Waveforms	Sine or Square
Modulation Source	Internal or external
Internal Modulating Waveform	Sine, Square, Triangle, Rising/Falling Ramp
Frequency of modulating signal	100μHz ~ 10kHz
Deviation	Max. 50% of carrier frequency for internal FM Max 100kHz (carrier frequency≥ 5MHz) for external FM, with input signal voltage 3Vp-p (-1.5V~+1.5V)
FSK Characteristics
Carrier Waveform	Sine or Square
Control ModeI	Internal or external trigger (external: TTL level, low level F1, high level F2)
FSK Rate	0.1ms ~ 800s
PSK Characteristics
Carrier Waveform	Sine or Square
PSK	Phase 1 (P1) and Phase 2 (P2), range: 0.0 ~ 360.0°
Resolution	0.1°
PSK rate	0.1ms ~ 800s
Control Mode	Internal or external trigger (external: TTL level, low level P1, high level P2)
Burst Characteristics
Waveform	Sine or Square
Burst Counts	1 ~ 10000 cycles
Time interval between bursts	0.1ms ~ 800s
Control Mode	Internal, single or external gated trigger
Frequency Sweep Characteristics
Waveform	Sine or Square
Sweep Time	1ms ~ 800s (linear), 100ms ~ 800s (log)
Sweep Mode	Linear or Logarithmic
Start/ Stop Frequency	Same as frequency range of Sine & Square
External trigger signal frequency	DC ~ 1kHz (linear) DC~10Hz (log)
Control Mode	Internal or external trigger
Inputs/ Outputs
Main Output
Impedance	50Ω
Protection	Short circuit and overload protected
Output MOD OUT
Frequency	100Hz ~ 20kHz
Waveform	Sine, Square, Triangle, Rising/Falling Ramp
Amplitude	5Vp-p ± 5%
Output Impedance	600Ω
Modulation IN	3Vpp = 100% Modulation
External Input Trig/FSK/Burst	Level - TTL
Universal Counter, Key Specs*
Frequency Range
Frequency Measurement	1Hz ~ 100MHz
Totalize mode	50MHz max
* For the full specification of the counter section refer to www.bkprecision.com
General
Power Supply	198~242V or 99~121V, Frequency: 47~ 63Hz
Power Consumption	<35VA
State Storage Memory
Storage Parameters	frequency, amplitude, waveform, DC offset values, modulation parameters
Storage Capacity	10 user configurable stored states
Dimensions (W x H x D)	10” x 3.93” x 14.56” (255 mm x 100 mm x 370 mm)
Weight	6.6lbs (3 kg)
Remote Interface	RS232
Safety designed according to	EN61010
EMC tested according to	EN55022, EN55024, EN61326, EN601000
Accessories
Included	BNC to alligator cable, BNC to BNC cable, RS232 communication cable, power line cord, test report, spare fuse

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