| Performance Feature |
MkIV Specification |
| Control Computer |
Intel 486 |
| User Interface |
Compuquest GUI |
| Frequency Coverage |
2-18 GHz in 16-Hz steps |
| Frequency Expansion |
100 MHz -100 GHz |
| Frequency Switching Time |
1 ms options |
| Frequency Table |
Up to 16 |
| Frequency Step-Chirp |
Pulse to pulse, sequential or pseudorandom; 1 to 216 steps |
| Phase Code |
Mono-or bi-phase (sequential or pseudorandom) |
| Waveform Flexibility |
Frequency, pulsewidth |
| Antenna Polarization Ports |
Linear |
| Polarization Switching |
Full matrix pulse to pulse |
| Transmit Pulsewidth |
5.0 ns-2 ms in 1-ns steps |
| Instantaneous RF Bandwidth |
500 MHz |
| Selectable Video Bandwidth |
2 to 250 MHz in 10 steps |
| PRF/Sample Rates |
Variable to 1 MHz/4 MHz |
| Range Delay |
0-640 msec |
| Range Sampling Jitter |
<35 ps |
| ADC Quantization |
10 to 14 bits |
| Signal Integration |
1 to 220, powers of 2 |
| Dynamic Range |
70 dB + Integration (1 bit/noise, 1 bit sign) |
| I/Q Circularity |
<0.03 dB rms (real-time corrected) |
| System Stability |
±0.1 dB, ±1° after warmup |
| System Linearity |
±0.25 dB (from 35dB above noise to 8dB below 1dB compression) based on temperature |
| Online Diagnostics |
Stability, statistics, loop tests, etc. |
| Built In Test |
RF and digital to board level |
| Bias Subtraction |
Bi-phase |
| Background Subtraction |
-40 dB typical |
| Data Collection Rate |
2.5 Mb/sec max |
| Data Storage Interface |
SCSI standard |
| Realtime Auxiliary Data Inputs |
Orbit, others |
| Pulses in the Air |
Single or Multiple |
| RF Channels |
1 |
| Range Gates |
1-4 |
| Calibration |
Automatic against external reference |
| Real-time Processing |
ISAR, RCS, 1D, 2D transforms |
