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Timewave
DSP-599zx

Specifications

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Audio Filters 

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DSP-599zx Specifications

Audio Input A & B

Audio Output A & B

Impedance 20K ohms or 25 Ohms, jumper selectable Output power 1.0 watts into 8 ohms at 13.8 VDC, both output channels A&B operating.
1.5 watts into 4 ohms at 13.8 VDC, both output channels A&B operating.
Signal range for full output 10 mV to 1 volt, front panel programmable
Line output level 0 dB, referenced to input level. Not controlled by gain control

Automatic Gain Control (AGC)

Voice 36 dB
CW & Data Modes 18 dB

Noise Reduction Filters

Function Frequency range Attenuation Type Delay
Random Noise Reduction Entire freq. range of selected bandpass filter Up to 20 dB, varies with noise characteristics. Adaptive 5 ms max
Variable Noise Reduction Noise reduction aggressiveness front panel adjustable
Heterodyne Eliminator (Multiple Automatic Notch) Entire freq. range of selected bandpass filter Up to 50 dB, varies with noise characteristics Adaptive 5 ms max
Heterodyne Eliminator (Manual Notch) Entire freq. range of selected bandpass filter Up to 50 dB, varies with noise characteristics Adaptive Manual

Voice Filters

Function Frequency range Attenuation Type Delay
Highpass Corner freq. = 100 to 1000 Hz., 10 Hz. steps. 60 dB at 180 Hz. outside the passband FIR Linear phase 21 ms max
Lowpass Corner freq. = 1000 to 5000 Hz. 10 Hz. steps 60 dB at 180 Hz. outside the passband FIR Linear phase

CW Filters

Function Frequency range Attenuation Type Delay
CW Filters Bandwidth = 5 Hz to 600 Hz, 5 Hz steps. 55 dB at 60 Hz. outside the passband FIR Linear phase BW less than 20 Hz = 58 ms max. BW greater than 20 Hz = 34 ms max
Center freq. = 200 to 2150 Hz., 5 Hz. steps.
CW Marker Tone Sine wave at center freq. of selected CW filter.

Data Filters

Function Frequency range Attenuation Type Delay
RTTY, AMTOR, PacTOR, G-TOR, & HF-Packet Bandwidth = 60 Hz. to 600 Hz.
Center freq. = 2210 Hz. plus option of 1700(default), 1360, 1300, 1530 or 2125 Hz.
40 dB at 60 H. outside the passband FIR Linear phase 30 ms max
SSTV 1100-1300 Hz. & 1500-2300 Hz. 50 dB at 75 Hz. outside the passband Composite FIR Linear phase 21 ms max
WeFAX 1500-2300 Hz. 55 dB at 75 Hz. outside the passband FIR Linear phase 21 ms max
CLOVER 2000-2500 Hz. 55 dB at 75 Hz. outside the passband FIR Linear phase 21 ms max
FSK Marker Tones 1) Sync-Nul character (Diddle) of selected data filter at selected baud rate
2) RY string (RTTY only)

RTTY Modem

Shifts 170, 200, 425, 850 Hz
Data Rates 45, 50, 57, 75 Baud
Input Audio from receiver
Output Open collector FSK and variable level AFSK
Transmit Data Polarity Normal or Reverse
I/O Receive data, Transmit data, PTT (RS-232 compatible)

Signal Processing

A-D/D-A Converter 16 bit linear, sigma-delta conversion, dual channel
Signal Processor 16 bit, 27ns Analog Devices ADSP-2181 with 80 KB of memory

Test Instrument

Audio Generator Single Sine wave adjustable 20 Hz to 10 kHZ
Two-tone fixed 700 Hz and 1900 Hz.
Audio Millivoltmeter True RMS from 1mV to 2000 mV, 20 Hz-10 kHz
CTCSS Encoder/Decoder Decodes and displays CTCSS "PL" tones fron 67.0 Hz to 254.1 Hz
CTCSS Squelch Open collector output pulls low when selected CTCSS tone is present.

Memory

Six Memories All configuration setups can be stored and recalled (except volume control setting)

Display

2x16 alphanumeric characters, dot matrix, yellow-green backlit LCD

Dimensions

Size 7.6 in. W x 8.5 in. D x 1.9 in. H (193 mm x 216 mm x 48 mm)
Weight 2.53 lb. (1.15 Kg.)

Power

12-16 VDC @ 1A, Fuse 1.6A, 5 mm x 20 mm


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.


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