Biophysica Incorporated

Phone: 647-478-6946 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);

Order by Phone or Online

We find that many customers would prefer to call us for help in selecting the best products to suit their needs. Please feel free to contact us by phone or email or use our easy Online Order Form.

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