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#1
07-13-2009, 07:29 PM
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The unusual?
Here is a kind of unique item I bought on Ebay in 2004. An LNBF (13/18V) to Servo-motor Feedhorn C-band converter. It is used so that you can use your old C/Ku band LNB that uses a servo-motor to change polarity with a new DVB digital receivers that only provide polarity changing by means of changing the voltage (13 to 18 volts). I bought it of a seller in Brazil. I haven’t used it years since all of my LNB’s have been changed out to the voltage switching type.
Does anybody else have anything unusual?
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Dreambox 7020 FortecStar Lifetime Ultra FortecStar Lifetime 8 Dishes (C/Ku bands) Ku LNBF's: Invacoms,Fortec, Samsung, Primestar C band LNBF's: Precision, DMS Switch EMI Centuri S.168 Motors: retired (none used) 
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#2
07-13-2009, 08:15 PM
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very cool Buzz does anybody still sale these?
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Rainman's Equipment Undien 4600,DSR 922 Fortec Ultra, Satworks 3618 2 Fortec Mercury II Fortec Classic NA 8.5' Orbitron polar C Ku dish 8.5' Birdview HH C Ku dish 100cm Fortec dish 90cm Fortec dish 2 DG-240 HH motors Co Rotor II feed horn Norsat 8515 C band lnb Norsat 4506A Ku lnb BSC-621-2 Lnbf Invacom QPH-031 Lnbf Invacom SNH-031 Lnbf Fortec Fsku-v universal Lnbf V-Box
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#3
07-13-2009, 08:20 PM
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Donno. Try to Goggle & slezzebay maybe. I will try to reverse engineer it and may one if interested. It may take a little time though. Next weekend the wife wants to buy new wedding rings & I really need to start another batch of homebrew. I guess I need to set my priorities huh?!
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Dreambox 7020 FortecStar Lifetime Ultra FortecStar Lifetime 8 Dishes (C/Ku bands) Ku LNBF's: Invacoms,Fortec, Samsung, Primestar C band LNBF's: Precision, DMS Switch EMI Centuri S.168 Motors: retired (none used)
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#4
07-13-2009, 08:24 PM
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Quote:
 call us when the home brew is done.lol 
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Rainman's Equipment Undien 4600,DSR 922 Fortec Ultra, Satworks 3618 2 Fortec Mercury II Fortec Classic NA 8.5' Orbitron polar C Ku dish 8.5' Birdview HH C Ku dish 100cm Fortec dish 90cm Fortec dish 2 DG-240 HH motors Co Rotor II feed horn Norsat 8515 C band lnb Norsat 4506A Ku lnb BSC-621-2 Lnbf Invacom QPH-031 Lnbf Invacom SNH-031 Lnbf Fortec Fsku-v universal Lnbf V-Box
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#5
07-13-2009, 08:35 PM
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If anyone is interested and is knowledgeable in electronics I will try to post a schematic of this tomorrow. (Depending on how hard the workload I have at my real job is).
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Dreambox 7020 FortecStar Lifetime Ultra FortecStar Lifetime 8 Dishes (C/Ku bands) Ku LNBF's: Invacoms,Fortec, Samsung, Primestar C band LNBF's: Precision, DMS Switch EMI Centuri S.168 Motors: retired (none used)
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#6
07-13-2009, 10:07 PM
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does this have a skew adjustment?
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Rainman's Equipment Undien 4600,DSR 922 Fortec Ultra, Satworks 3618 2 Fortec Mercury II Fortec Classic NA 8.5' Orbitron polar C Ku dish 8.5' Birdview HH C Ku dish 100cm Fortec dish 90cm Fortec dish 2 DG-240 HH motors Co Rotor II feed horn Norsat 8515 C band lnb Norsat 4506A Ku lnb BSC-621-2 Lnbf Invacom QPH-031 Lnbf Invacom SNH-031 Lnbf Fortec Fsku-v universal Lnbf V-Box
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#7
07-13-2009, 10:11 PM
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Si. There is a skew. I do remember some chatter so I'm betting adding a 1000uf capacitor to it will make that stabilize.
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Dreambox 7020 FortecStar Lifetime Ultra FortecStar Lifetime 8 Dishes (C/Ku bands) Ku LNBF's: Invacoms,Fortec, Samsung, Primestar C band LNBF's: Precision, DMS Switch EMI Centuri S.168 Motors: retired (none used) Last edited by Buzz; 07-13-2009 at 10:20 PM.
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#8
07-13-2009, 10:13 PM
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cool that's just what us old c band guys need.
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Rainman's Equipment Undien 4600,DSR 922 Fortec Ultra, Satworks 3618 2 Fortec Mercury II Fortec Classic NA 8.5' Orbitron polar C Ku dish 8.5' Birdview HH C Ku dish 100cm Fortec dish 90cm Fortec dish 2 DG-240 HH motors Co Rotor II feed horn Norsat 8515 C band lnb Norsat 4506A Ku lnb BSC-621-2 Lnbf Invacom QPH-031 Lnbf Invacom SNH-031 Lnbf Fortec Fsku-v universal Lnbf V-Box
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#9
07-16-2009, 11:21 AM
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Schematic
Here is a schematic that I came up with. Hopefully my reverse engineering of this is correct. I will also try to take up close photos of both sides of the circuit board. As far as I can tell this item is no longer available. If someone out there knows different, please provide some info. I still have the Ebay buyers info (from Brazil) that I bought mine from.
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Dreambox 7020 FortecStar Lifetime Ultra FortecStar Lifetime 8 Dishes (C/Ku bands) Ku LNBF's: Invacoms,Fortec, Samsung, Primestar C band LNBF's: Precision, DMS Switch EMI Centuri S.168 Motors: retired (none used) Last edited by Buzz; 07-16-2009 at 01:11 PM. Reason: Typo
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#10
07-16-2009, 07:23 PM
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PCB Pictures
...And here are some PCB pictures.
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Dreambox 7020 FortecStar Lifetime Ultra FortecStar Lifetime 8 Dishes (C/Ku bands) Ku LNBF's: Invacoms,Fortec, Samsung, Primestar C band LNBF's: Precision, DMS Switch EMI Centuri S.168 Motors: retired (none used)
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Linear Mode
