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Protek B821 Sweep
Function Generator 0.2Hz to 20MHz
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Protek B821
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Features:
- Sweep Function Generator and Frequency Counter
- Sine, Square, Triangle, Ramp, Pulse, Skewed Sine and TTL Square Waveforms
- 0.2Hz to 20MHz Frequency Output (Sine wave)
- Built-in 8 digit 3.0GHz Frequency Counter
- Internal and External linear Sweep control
- Variable Symmetry for generating Sawtooth (Ramp), Skewed Sine and Pulse Waveforms
- Variable DC Offset control
- Variable Output level control and 20 dB attenuator
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Models, Options, & Accessories
| Model |
Description |
List Price |
Sale Price |
| B821 |
20 MHz Sweep Function Generator |
$643.00 |
| $552.98 |  |
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Specifications
| Output Characteristics |
| Frequency Range |
Sine wave: 0.2 Hz to 20 MHz
Square & Triangle wave: 0.2 Hz to 10 MHz
Range selection in 8 ranges (1,10,100,1k,10k,100k,1M,10M ) |
| Output Level |
20 ±1 Vp-p in open circuit
10 ±0.5 Vp-p into 50W Load |
| Waveforms |
Sine, Square, Triangle, Ramp, Pulse, Sawtooth, TTL Leveled Square |
| Attenuator |
20dB fixed and continuously variable (20dB) |
| Impedance |
50W ±0.5% |
| Frequency Accuracy |
±5% of full scale |
| Waveform Characteristics |
| Sine Wave |
Flatness: ±3dB to 20 MHz
Distortion: Less than 1.5 % at 0.2 Hz to 100 kHz
Duty error: Less than 10% in 50:50 |
| Square Wave |
Rise and Fall Time : Less than 25 nS at 10MHz |
| Triangle Wave |
Linearity: More than 99 % at 0.2 Hz to 100 kHz |
| TTL Output |
Rise and Fall Time: Less than 25 nSec at 10MHz
TTL Level: H >= 2.4V, L <= 0.4V |
| Symmetry Variation |
Sine & Square; 80:20 to 20:80 at 0.2Hz to 2MHz
Triangle; 80:20 to 20:80 at 0.2Hz to 1MHz |
| Sweep Function Characteristics |
| Mode |
Linear |
| Width |
Variable from 1:1 to 10:1 |
| Rate |
0.5 Hz to 50 Hz (20mS to 2S) |
| External VCF Input |
Input Voltage: 0 to 10 V
Input Impedance: Approx. 10KW |
| Frequency Counter Characteristics |
| Display |
8 digits Green LED, Overflow, Gate time, MHz, kHz, Hz |
| Frequency Range |
Input A : 0.1 Hz to 100 MHz, Input C : 80MHz to 3.0 GHz |
| Accuracy |
±Timebase Error ±1 count |
| Low pass Filter |
-3 dB, 100kHz |
| Timebase |
10 MHz TCO, 1 ppm |
| Input Sensitivity |
Input A: 30mVrms(0.1Hz to 80MHz), 70mVrms(80 to 100MHz)
Input C: 20mVrms(80MHz to 2.0GHz), 70mVrms(2.0GHz to 3.0GHz with RG58 cable), 40mVrms(2.0GHz to 3.0GHz with RG400 cable) |
| Max. Input Voltage |
Input A: 35 Vp-p, Input C : 3Vrms |
| General Specifications |
| Power Requirement |
115 or 230 VAC ±10%, 48 to 66 Hz |
| Operating Temperature |
0 to 40°C (Accuracy specified at 23 ±5°C) |
| Size |
3.5" H x 9.5" W x 11.0" D |
| Weight |
6.6 lbs |
| Supplied Accessories |
Manual, Line cord, BNC cable |
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