Biophysica Incorporated

Phone: 416-784-0463 or Toll Free 1-800-488-2032 from Canada, US and Territories -or- E-mail:

BF-15: Advanced Variable Frequency Generator

BF-15: Advanced Variable Frequency Generator


  • Frequency Range: 0.01Hz~15MHz
  • Maximum Frequency Resolution: 10mHz
  • Frequency Accuracy: 0.02% ±5 Count
  • Dual Display Indicates Frequency & Amplitude
  • Built-in 6 Digit Counter with INT/EXT Function up to 150Mhz/High Resolution
  • Output Waveforms: Sine, Square, Triangle, Ramp, Pulse, AM, FM, Sweep, Trigger, and Gate or Burst
  • VCF for 100:1 EXT Frequency Control
  • INT/EXT Frequency Modulation
  • GCV Output for Synchronization
  • Variable DC Offset Control
  • SYNC Output
  • LIN/LOG Sweep Mode
  • Output Overload Protection
  • RS-232 Standard Interface
  • Multiple (8) Channel Outputs

BF-15: Advanced Variable Frequency Generator


Output Waveforms Sine, Square, Triangle, ±Ramp, Pulse, AM, FM, Sweep, Trigger, Gate or Burst
Frequency Range 10mHz~15MHz in 8 Frequency Ranges (auto-switch)
Frequency Resolution 15MHz~150kHz (100Hz)
1.5MHz~15kHz (10Hz)
150kHz~1.5kHz (1 Hz)
15kHz~150Hz (0.1Hz)
1.5kHz~15Hz (10MHz)
150Hz~1.5Hz (10mHz)
1.5Hz~0.01Hz (10mHz)
Frequency Accuracy 0.02% ±5 Count
Output Impedance 50? ±10%
Amplitude Range 10.00V~0.01V (into 50 ohms) 4 amplitude range;
|Vac peak| + |Vdc| = 5V
Resolution: 10mV (10.00V~0.01V)
Amplitude Accuracy ?3% ±5 count at 10Hz~1MHz ?10% ±5 count at 1MHz~1.5MHz
Amplitude Unit Vpp, Vrms, dBm
DC Offset -5V~5V (into 50?); Resolution 10mV
DC Offset Accuracy ?3% ±3 count at Amplitude Min
Duty Control 80%:20%:80% ~ 1MHz; Resolution 1%
Duty Accuracy ?1% ~ 1MHz at 50% Duty
Display Dual Display for Frequency 6 digits and Amplitude 4 digits
Sine Wave
Distortion ?0.5%(-46dBc) From 10Hz~150kHz; ?-30dBc to 15MHz;
(Spec applied from 1Vpp to 10Vpp)
Triangle Wave
Linearity Error <1% of full scale output at 100Hz
Square Wave
Asymmetry ±1% of period + 3ns
Rise or Fall Time <18nSec
SYNC Output
Impedence 50? ±10%
Level >1Vp-p open circuit
Modulation Characteristics
Types AM, FM, Trigger (int/ext), Gate or Burst (implement by trigger type)
Waveform Sine, Square, Triangle, Ramp, or Variable Symmetry Pulse
Rate Frequency Range 10mHz~10kHz in 3 frequency ranges (auto switch)
Rate Frequency Accuracy ±1 Count
Rate Frequency Resolution 10.0kHz~0.1kHz (100Hz)
99Hz~1Hz (1Hz)
0.99Hz~0.01Hz (0.01Hz)
Symmetry 90%:10%:90%; Resolution 1%
Symmetry Accuracy ±1 count (? ±1%)
Output Level ?1Vpp into 10k? load
Sine Wave Distortion ?1% from 10Hz to 10kHz
Amplitude Modulation
Depth 0~100%
Modulation Frequency Rate 0.01Hz~10kHz in 3 frequency range (auto switch)
Carries -3dM Bandwidth <100Hz to >MHz
External Sensitivity ? 10Vpp for 100% modulation
Frequency Modulation
Deviation 0~±15%
Modulation Frequency Rate 0.01Hz~10kHz(INT) DC~1MHz(EXT)
External Sensitivity ? 5Vpp for 15% deviation
Sweep Characteristics
Sweep Range 15MHz~150kHz
Width ?100:1 (In same frequency range)
Rate 0.01Hz~10kHz
Symmetry Control 90:10:90; Resolution: 1%
Mode Linear/Log Sweep
Sweep Output 0~?-5Vp-p into 10k?
Trigger Characteristics
Start/Stop Phase Range 90°~260°
Rate 0.01Hz~10kHz
Frequency Range 0.1Hz~1MHz (Useful ~ 10MHz)
Ext Trig Frequency Range DC ~ 1MHz, TTL compatible input level
Gate or Burst Implement by Trigger setting
VCF (Voltage Controlled Frequency)
Range 100:1 (0~10V±1V)
Input Linearity <0.5% to 1MHz, <5% to 10MHz
Input Impedance 10k?
GVC Output (Generator Controlled Voltage)
To set the voltage between 0.2v to 2v as per different frequency in same frequency range
Frequency Counter
INT/EXT Switch Selector
Range 5Hz~150MHz EXT
Accuracy Timebase Accuracy ±1 count
Time Base ±20ppm(23°±5°C) after 30 minutes warm up
Resolution The maximum resolution is 100nHz for 1Hz and 1Hz for 100MHz
Input Impedance 1M?//150pF
Sensitivity ?35mVrms(5~100MHz);

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Phone: 647-478-6946
Toll Free: 1-800-488-2032
from Canada, US and Territories

Product Profile

Product ID: BF-15
Description: BF-15: Advanced Variable Frequency Generator
Notes: This device has not been approved for use on humans in U.S.A or Canada and is therfore to be used only for experimental, hobby or sacramental purposes.
Memory Save/Recall 10 Sets of front panel setting memories
Interface RS-232C
Power Source AC 115V/230V±15%, 50/60Hz
Accessories Power cord
Instruction manual
Dimensions & Weight 290(W) 142(H) 460(D) mm, Approx. 5 kg