8psk

[Wyle_Coyote]

Any receivers out there that do 8PSK?
The Pansat 3500S is great but lacks this feature. I thought maybe one of the Nokia's would handle all encoding schemes, but I don't believe it tackles this issue either.

So what is everyone running to get 8PSK?

 

[goaliebob99]

Welcome to SatGuys

No one is running anything to get 8psk... other than a 6000 8psk moduel. But those are in short supply. There is nothing publically avabile for 8psk and there is a long line of people wating. If you find something that I havent found please pm me as im looking for an 8psk card too.. I think something should break within the next year for 8psk devices or dvb S2.. Cant wait. I know there are also some units in beta testing right now.

 

[Anole]

No one is running anything to get 8psk... other than a 6000 8psk moduel. But those are in short supply.

Were you looking for one of those for the 6000?
(near bottom of page)
If you were looking for a PCI card or external USB unit, I hear talk , but see no smoke.

 

[Stefan]

I think what he's refering to is a special usb adapter that was made by Rod Hewitt that could be used to connect one of those tuning modules to a PC. However, those were limited preproduction items that were only available from Rod for a limited time and are no longer available now. Also if I'm not mistaken the units were limited as far as symbol rate goes and were not capable of recieving higher symbol rate signals. Furthermore, I believe there are 2 different types of 8psk, turbo and trellis and this unit could only work with one of those. So, the bottom line is if you don't already have one of these there's little chance to obtain one and even if you do obtain one you may not be able to recieve all 8psk signals with it and that's not even taking into account the fact that many 8psk signals may be encrypted.

As for recievers that can handle 8psk, sure they exist. Otherwise noone would be broadcasting using 8psk. However, these recievers are not readily available to the general public and even if you can find a way to obtain one expect a 4 or perhaps even 5 figure price tag. Also my understanding is that reliable recpetion of 8psk signals requires a high quality LNB and a much larger dish (12-15Ft. at least). I believe 8psk provides higher bandwidth with a smaller piece of the spectrum. This is the reason some networks have swtiched to it (or are planning to) for their HD feeds. However, the price that must be paid for that is tighter signal constraints which means you must get a much higher quality signal to get a lock. For a network affiliate having a 25Ft dish in their backyard is no problem but for most of us hobbiest it might be.

 

[Scott Greczkowski]

Call DishStore is your looking for a 8PSK 6000 Cartridge. They have a few in stock and the price will probably be cheaper then the link above.

 

[goaliebob99]

yep thats it.. im gonna see if i can bulid me Rods idea..

 

[Stefan]

You have to have more than just the 6000 8psk module. That's just the tuner. You also have to have the interface board that Rod sold which connects between the tuner module and your computer. If I remember correctly he sold them for $299, but he only had a very limited number of them and I don't believe he's selling them anymore. Also, you'll of course need to purchase a copy of Tsreader as it's the only software that works with the board. So youd be looking to spend at least $400 not counting the price of the 6000 8psk module and that's assuming you can convince Rod to go back and build another one just for you.

 

[goaliebob99]

I allready have Tsreader.. as thats not a problem.. (Im the uplink guy) Hopefuly i got my hands on a 6000 8psk card.. The rest is ratshack items.. and some gooood old fashon sodering.. hell, if i get good, i will start selling them...

 

[sharris]

As for recievers that can handle 8psk, sure they exist. Otherwise noone would be broadcasting using 8psk. However, these recievers are not readily available to the general public and even if you can find a way to obtain one expect a 4 or perhaps even 5 figure price tag. Also my understanding is that reliable recpetion of 8psk signals requires a high quality LNB and a much larger dish (12-15Ft. at least). I believe 8psk provides higher bandwidth with a smaller piece of the spectrum. This is the reason some networks have swtiched to it (or are planning to) for their HD feeds. However, the price that must be paid for that is tighter signal constraints which means you must get a much higher quality signal to get a lock. For a network affiliate having a 25Ft dish in their backyard is no problem but for most of us hobbiest it might be.

You are correct sir....Last I heard one would cost in the range of $2000 +. Not even sure where to get one, even if I had the money.

 

[BFG]

I allready have Tsreader.. as thats not a problem.. (Im the uplink guy) Hopefuly i got my hands on a 6000 8psk card.. The rest is ratshack items.. and some gooood old fashon sodering.. hell, if i get good, i will start selling them...

So really all you do is soder one to some cables and connect it to your computer, dont need to slave it to another DVB card? Hmm....

Yeah if learn more about this please help me out

 

[CJPC]

Well, from what I get you can use the mpeg out on the 8psk card, but then (heres the hard part) somehow convert it onto usb/firewire, for input into a PC

BTW goaliebob, check your PM

Seems theres no 'easy' way to do it, without knowing how to convert the raw mpeg2 stream into a pc!

 

[Anole]

I wish !

Well, from what I get you can use the mpeg out on the 8psk card, but then (heres the hard part) somehow convert it onto usb/firewire, for input into a PC.
Seems theres no 'easy' way to do it, without knowing how to convert the raw mpeg2 stream into a pc!

If it were just as easy as hooking the Dish module to a USB converter, I'd be all over it!
Even it it were a hack with the module and a stock $80 DVB-S card, I'd jump on it.
I assumed it was a much bigger deal and a lot harder....
...but if any of you have seen the USB-output adapter for the Dish 6000 receiver, that's a lot of money for a little pile of parts!
(there are two versions from different suppliers)

Is there enough interest here to start a thread about building such a unit?
.

 

[goaliebob99]

From what i get is that the usb card that rod made is powered by the pc's power supply.. heres a pic. I want to getahold of the diargram of how to put together rods little prodject. parts list, pics ect. ect. ect. the ones i got are of the 6000 unit itself and possably using a computers hd cable. I really want to bulid the usb version as it has tsreader support allready... Can some one take a good look at this pic and see how possably its done.. (mad scientist thread... ) After we get all the parts and the how too.. makeing some shouldnt be a problem.. Most of it should be ratshack parts if with the exectption of chips. I got a pm from a guy who knows how to soder and wants to help. Im all for it! Right now we got the everything we need with the exception of the Know how of what needs to go to where... Lets solve this puzzle and start putting stuff together!!!!!!!!!

 

[goaliebob99]

this maybe something of some sort of intrest http://www.comblock.com/download/com1229.pdf

 

[Anole]

I would prefer to at least see a block diagram (or better, a schematic) of the 8PSK module before putting my foot in my mouth, but...
...but, that PCB looks like it might be nothing more than a standard USB-to-something board.
What makes you think the ComBloc data sheet is associated with the project?
Do you have one and is that the chip in it? If so, that's certainly progress!

 

[CJPC]

Well, Ive found some decent sized shots of the 8psk module I can attach if you guys want (not mine, but found em on the net!)

Think we could have a project goin!!

Edit: Its attached, that 24pin pad to the left of the broadcom chip is the mpeg raw out i beleive!

 

[BFG]

So how much of that usb card did rod build I wonder?

Maybe there's only a couple of things that need to be put together, mainly the 24 pin pad looks like...

I bet most of the other parts are on an actually 6000 then, like the pin connector for example

I thought you had to modify the module but it looks like that's mainly in tact...

 

[Anole]

want more !

The red PCB is the 8PSK module , and you found that picture on the internet?
Since it's stock, we don't know if the board needs to be modified at all.
I would certainly like to know (or see) that the Dish 8PSK module is used unmodified.

As for the USB PCB, a picture of it without the 8PSK module in the way would show if it's a standard board with mods to mount the edge-card connnector, or really a custom board.
I've done things like this were I just changed /rewired/cut-up the existing connector on a cheap/available board, and mounted the connector I needed.

A major portion of the USB board looks to be power supply stuff.
Unless the 8PSK module needs higher than 12 volts, I'd be inclined to run it off the PC, to avoid all that extra stuff.

Still guessing, need more pix!
hint: block diagrams and schematics would be even better

 

[CJPC]

Yep, found that pic, and some 8psk module schematics too, but dunno if i can post em (dont want the site to get in trouble!)

However, the usb part does seem mostly like power/switching stuff, and it has a 4pin molex connector, from what ive foudn that is for PC power (12v)

But, im guessing (i need to find and order one) the 8psk module allows direct access (odviously) to the mpeg stream = where it is tapped! If anyone has one, and dont care if it blows, grab a multimeter and test the continutity between the mpeg out pins, and the 8psk pins!

 

[goaliebob99]

This is everything that I have / know... Maybe this can shed some light... I've had this for a few months now and emailed it to a couple of people (I got this back in an email today ) download this and it should help you all out and it helps me out too if you all can actually makes rods thing with this.. This is the 6000's 8psk modulation card broken down with pics.. So here you go as im sharing now!!!!