![]() - Digital Signal Processor / TIMEWAVE DSP-59+ - ![]() ![]() 2022.12.17 Köpte en yttre högtalare till min HF-Rigg. Blev 'tvungen' att plocka fram ett gammal favorit tillbehör, det är en extern DSP enhet 'TIMEWAVE DSP-59+' - Min YEASU FT-857 radio har inbyggd DSP enhet, men jag har alltid gillat TIMEWAVE's DSP enheter, har testat flera olika modeller genom åren. 'TIMEWAVE DSP-9+', 'TIMEWAVE DSP-59+', 'TIMEWAVE DSP-599xz', 'JPS NIR-10'. ![]() ![]() TimeWave DSP-59+ Serial# 46587 - Documentation - - Technical data - Digital Noice filter for amateur radio voice, data and CW operation. The DSP 9+ filters and reduces noice and interference to improve radio reception. How it works... The TimeWave DSP+9 makes use of computer controled digital signal processing technology to reduce Random/Tone and Noice interferance in incoming signals. It implement the computer controled algorithms to perform four basic functions: 1) Random noise reduction 2) Adaptive multi-tone notch filtering (Heterodyne TONE noice reduction) 3) Bandbass filtering 4) RTTY remodulation Al these can be used one by one or al togheter in numerous combinations. The signal is feed into the device and the characteristic of the signal and noise is analyced using a method called 'correlation'. The DSP+9 measures degree of correlation and filters out wanted signals from noise and Heterodyne tones, this is all done in 'real-time'. FACTORY SPECIFICATIONS ======================================== This is data for the VOICE mode only! (I leave the CW and DATA modes whit out any remarks.) - Random Noice Reduction Is done on the entire freq. range of any selected Bandpass filter. Attenuation up to 20dB, varies with noice characteristics. Type: Adaptive with Maximun 10msec delay. - Tone Noice Reduction (Multiple auto notch) Is done on the entire freq. range of any selected Bandpass filter. Attenuation up to 50dB, varies with noice characteristics. Type: Adaptive with Maximun 10msec delay. - Bandpass (VOICE) 300-3.4kHz, 300-2.7kHz, 300-2.1kHz or selected by jumper set 300-2.7kHz, 300-2.3kHz, 300-1.9kHz With Attenuation of 60dB @180Hz outside of passband Type: FIR Linear phase. Maximun 10msec delay. - AGC Voice Mode 36dB Data/CW Mode 18dB Dimensions.........193(W)x 216(D)x 48(H) millimeters Weight.............0.9Kg Manufactory........Timewave Technology Inc. 2401 Pilot Knob Road St. Paul, MN 55120, U.S.A.<-- Go Back! ![]() ©1999/2000/2001/2002 SM2YER Goran |