There are a few receivers for very cheap on the overseas market boasting the MSD 7816 chipset. Looks like possibly 550mhz and claims to to 16apsk and 32apsk. I found some specs on it:
([Only registered and activated users can see links. ])
Main Feature
l Compliant with DVB-S/S2 standard
l 5000 or more channels memory space
l HDMI 1.3 transmitter output interface with embedded or external HDCP key
l User friendly and easy-to-use menu system
l 7 Days EPG
l Teletext and subtitle output through OSD
l Parental Lock function
l PVR function supported
l Advanced Time-shift function
l Supporting pictures with JPEG,BMP,PNG,zoom fuction supported
l Supporting music files with MP3、AAC、M4A
l Capable to playing picture and music at the same time
l Supporting movie files with MPEG1/MPEG2/MPEG4/H264/M-JPEG /AVI/MPG/MP4/TS/TRP/TP/MOV/MKV/VOB/DAT ect
l DiSEqC1.0/1.1/1.2/1.3
l Unicable LNB supported
l The OTA upgrade supported(optional)
l Software upgrade by USB2.0 interface
Hardware Feature
CPU: Mstar MSD7816(MIPS34K CPU)
Speed: 550M
Flash: 4MByte
DDRII Memory: 64MByte
Connection: HDMI1.3, SPIDIF, AV6(YPbPr, CVBS) or 1Scart,LNB IN,USB2.0
Front panel:3Key(Power,CH+,CH-),4 bit 7-segment LED array,IR receiver
Video/Audio processing
l ISO/IEC 13818-2 MPEG-2 MP@ML,up to 1080p@30fps
l ISO/IEC 14496-2 MPEG-4 SP and ASP,up to 1080p@30fps
l ITU-T H.264,ISO/IEC 14496-10( MP&[email protected]), up to 1080p@30fps
l Hardware JPEG integrated,scaling down ratios:1/2,1/4,1/8
l Audio decoder compliant with MPEG-1,MPEG-2(Layer I/II),MP3,WMA, AAC-LC
l Dolby/DD+ support optional
l Simultaneous supporting HE-AAC decoding and transcoding to AC-3
l Stereo audio description decoding supported
l RA8-LBR decoding supported
Tuner
Input Frequency: 950 to 2150 MHz
Signal Input Level: -65 to 25 dBm
Input Impedance: 75Ω
LNB Power: 13.5±1V/18.5V±1V,max 350mA
Channel Decoding
Waveform
QPSK,8PSK,16APSK,32APSK,compliant with DVB-S/S2 spec
Maximum channel bit rate
168Mbps
Maximum symbol rates
45MSps for QPSK,8PSK,16APSK, 37MSps for 32APSK
Roll-off
0.35,0.25,0.2
Thread: MSD 7816 based receiver
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MSD 7816 based receiver – 10-12-2013,06:21 PMPortable Comtech 13', Winegard 10', SAMI 7.5', 3 39" Ku dishes one motorized. Scanning 30w-131w