Astro Digital Spectra and
Digital Spectra plus units
HOW GET WARRANTY SERVICE
• Provide proof of purchase
• Deliver or send the product item to
authorized warranty service location.
WHAT THIS WARRANTY DOES NOT COVER
• Defects or damage resulting from customary
manner or other than.
• Defects or damage from misuse , accident ,
water or neglect
• Defects or damage from testing , maintenance ,
operation ,modification or adjustment
• Breakage or damage to Antenna unless caused
• Serial number remove or made illegible
Warranty is governed by the laws of the state of Illinois ,
Front end RX assembly
Local oscillator signal
2nd Local oscillator signal
2nd IF frequency
Voltage Control oscillator signal
CONTROL HEAD ASSEMBLY
• Connected front of the transceiver ,This
assembly contains a vacuum fluorescent
( VF ) display , VF drivers , microprocessor
and serial bus interface .
POWER AMPLIFIER ( PA )
• Contains antenna switch , directional
coupler / detector and amplifiers
FRONT END RECEIVER ASSEMBLY
• Contains pre – amplifier , preselector ,
mixer and injection filter .
, demodulator ,synthesizer logic and
filtering circuitry and Digital receiver back
– end integrated circuit ( IC )
• Contains power control / regulator , digital
to analog ( D/A ) IC , serial bus interface
and audio power amplifier ( PA ).
VOCON ( Vocoder / Controler ) BOARD
• Contains the microcomputer unit ( MCU )
, its associated memory and memory
management IC , the digital signal
processor ( DSP ) its associated memory
and support IC.
VOCON plus( Vocoder / Controler )
• The architecture is based on a dual – core
processor , which contains a DSP core an
MCORE 210 microcontroller core and