Originally Posted by
Alias1
To be honest it looks like half arse blind scan support ie the box does not have the hardware to support true blind scan and is relying on a software solution.
Here something about ET9000 Tuner :
Code:
DVB-S2 Channel Receiver AVL2108
BENEFITS
● Advanced demodulation technology achieves 120Mbps (45 MSps) 8PSK data rate which is 150% of similar products
● Powerful LDPC/BCH FEC decoder for all-weather signal reception
● Typical power consumption is less than 850mW. No exposed pad required.
● Fast acquisition allows wide frequency uncertainty
● Robust timing and frequency synchronization accommodates low-cost LNB
● Robust symbol timing recovery loop and carrier tracking loop to handle the worst case phase noise
● Compact 12x12mm LQFP 80-pin package.
● Automatic identification of modulation mode and FEC code rate reduces workload of host software
AVL2108 Based DVB-S2 Frontend
FEATURES
● Fully compliant with DVB-S2 standard Broadcast Profile, supports QPSK and 8PSK demodulation
● Integrated dual ADC with DC component cancellers, IQ imbalance compensator, and phase imbalance compensator
● Fully supports DVB-S legacy standard
● Built-in RF AGC circuit, directly interfaces with a variety of tuners
● Symbol rates from 1MSps to 45MSps for all modes including 8PSK modes
● DiSEqCTM 2.0 compatible LNB controller interface
● FEC decoder code rates: DVB-S2: 1/2, 3/5, 2/3,3/4, 4/5, 5/6, 8/9, 9/10 DVB-S: 1/2, 2/3, 3/4, 5/6,7/8
● Parallel/serial output data interface, output bit stream retiming
● Roll-off factors for pulse shaping, 0.2, 0.25, 0.35
● Standard two-wire serial bus with four selectable addresses
● Signal quality monitor and lock detector
● Power saving mode
● Automatic blind signal identification scan for all supported modes