6
VOICE FILTERS
Highpass
Corner freq. = 200 to 1600 Hz.,
60 dB at 180 hz.
FIR Linear 18 msec max
100 Hz. steps.
outside the passband
phase
for any
combination of
highpass & lowpass
Lowpass
Corner Freq. = 1700 to 3400 Hz.,
60 dB. at 180 Hz.
FIR Linear
AGC
Voice mode
36 dB
CW and Data Modes
18 dB
SIGNAL PROCESSING
A-D/D-A Converter
16 bit linear, sigma-delta conversion
Signal Processor
16 bit, 77ns Analog Devices ADSP-2105
TEST MODE
Self-test
Self-test for circuitry, switches, and PTT input. User initiated from front panel.
Test tones
Single or two-tone. Sine wave at the center freq. of each highpass and lowpass filter.
Sine wave distortion less than 1%.
DIMENSIONS
Size
7.6 in. wide x 8.5 in. deep x 1.9 in. high (193 mm wide x 216 mm deep x 48 mm high)
Weight
2.0 lb. (0.9 Kg.)
POWER
12-16 VDC @ 1A
Note: RTTY, AMTOR, PACTOR, G-TOR and HF Packet data filter bandwidths are
specified at -3 dB points to comply with traditional data filter specification methods. All
other filter bandwidths are specified to comply with conventional DSP FIR filter
parametric descriptions.
