The technical data of the narrowband and wideband classifier are summarized in the following tables.
Bandwidth HF |
4 kHz or 8 kHz (IQ signal: 9.6 kHz) |
Sampling interval (Ts) |
1.6 sec or 3.2 sec |
FSK |
30 to 3000 Bd, Shift <= 3500 Hz, Modulation index: 0.5 – 20 Signal must be continuously present during the sampling interval |
FSK-4 (F7B) |
30 to 300 Bd, Shift <= 3500 Hz |
MFSK |
4-36 tones |
PSK 2/4 Variant A/B |
30 to 3000 Bd |
PSK 8/16 Variant A/B |
30 to 3000 Bd |
MIL/STANAG |
Classified to protocol |
CIS-12 |
120 Bd, classified as one signal |
OFDM |
25-512 carriers Tg/Tu = 1/1 to 1/8 >= 25 Bd |
OQPSK |
25 Bd to 30 kBd |
CW-Morse |
Ts = 1.6 s: 6 to 60 Bd Ts = 3.2 s: 3 to 60 Bd |
Voice |
No |
Operation |
FFT display of classified signals Continuous and single-pass mode Classifier Code Check with look-up table |
Narrowband classifier (W-Classifier-NB) technical data.
FSK |
m = 0.8: 100 – 2400 Bd m = 0.8: 50 Bd m >= 2: 100 – 2400 Bd m >= 2: 50 Bd |
12 dB (Eb/N0) 15 dB (Eb/N0) 14 dB (Eb/N0) 16 dB (Eb/N0) |
PSK 2/4 Variant A/B |
100 – 2400 Bd |
14 dB (Eb/N0) |
PSK 8/16 Variant A/B |
100 – 2400 Bd |
16 dB (Eb/N0) |
CW-Morse |
8 – 50 Bd |
18 dB (Eb/N0) |
W-Classifier-NB quality of modulation classification.
FSK |
baudrate center frequency |
0.3% 2% of baudrate |
PSK |
baudrate center frequency |
0.2% 0.15% of baudrate |
CW-Morse |
baudrate |
5% |
W-Classifier-NB accuracy of measured parameters.
Bandwidth HF/VHF/UHF/SHF |
500 Hz to 96 kHz (IQ signal: 160 kHz) |
Sampling interval (Ts) |
1.6 sec or 3.2 sec |
FSK |
30 Bd to 60 kBd, Shift <= 30 kHz, Modulation index: 0.5 – 20 Signal must be continuously present during the sampling interval |
FSK-4 (F7B) |
30 to 300 Bd, Shift <= 3500 Hz |
MFSK |
4-36 tones |
PSK 2/4 Variant A/B |
30 Bd to 60 kBd |
PSK 8/16 Variant A/B |
30 Bd to 60 kBd |
MIL/STANAG |
Classified to protocol |
CIS-12 |
120 Bd, classified as one signal |
OFDM |
25-512 carriers Tg/Tu = 1/1 to 1/8 >= 25 Bd |
OQPSK |
25 Bd to 30 kBd |
CW-Morse |
Ts = 1.6 s: 6 to 60 Bd Ts = 3.2 s: 3 to 60 Bd |
Voice |
AM, FM, USB, LSB |
Operation |
FFT display of classified signals Continuous and single-pass mode Classifier Code Check with look-up table |
Wideband classifier (W-Classifier-WB) technical data.
FSK |
m = 0.8: 100 – 2400 Bd m = 0.8: 50 Bd m >= 2: 100 – 2400 Bd m >= 2: 50 Bd |
12 dB (Eb/N0) 15 dB (Eb/N0) 14 dB (Eb/N0) 16 dB (Eb/N0) |
PSK 2/4 Variant A/B |
100 – 2400 Bd |
14 dB (Eb/N0) |
PSK 8/16 Variant A/B |
100 – 2400 Bd |
16 dB (Eb/N0) |
CW-Morse |
8 – 50 Bd |
18 dB (Eb/N0) |
W-Classifier-WB quality of modulation classification.
FSK 100 Bd – 60 kBd |
baudrate center frequency |
0.3% 2% of baudrate |
PSK 100 Bd – 60 kBd |
baudrate center frequency |
0.2% 0.15% of baudrate |
CW-Morse 6 – 50 Bd |
baudrate |
5% |
W-Classifier-WB accuracy of measured parameters.