Build your own USB tuner . Questions about hardware

stand-alone receiver

Postby Robbiek56 » Wed 3 Apr 2019 19:33

I would like to have a stand-alone receiver based on the serit tuner for low SR signals. I have used the TS output connector to feed the signal to an existing receiver for decoding video and audio, works fine. Now i am looking for a way to control the serit tuner withhout PC. Would it be possible to use an Arduino-like processor with LCD display to set the frequency, SR etc? What would be the best approach?
Is the datasheet for the Serit tuner free available? (couldn't find yet)
Rob K PE1CHY
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Re: mini tutioune stand-alone

Postby m1cdq » Wed 3 Apr 2019 19:57

I would love that as well. a nice big box with screen and twiddly knobs for tuning freq, sr,mode, fec and switches to flick

something along the lines of this

sr50[1].jpg
sr50[1].jpg (23.88 KiB) Viewed 1948 times


with analog signal meters and a nextion display
rme45[1].jpg
rme45[1].jpg (22.55 KiB) Viewed 1948 times
with a big analog tuning dial

self contained with either built in screen or comp/ hdmi video output
the Tiounedown Reciever Box TRB ;-)
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Re: mini tutioune stand-alone

Postby VK5YYY » Fri 5 Apr 2019 13:08

Hi Robbiek56

What sat box did you use, any chance for some pictures of your mod?
I assume you have to set the Msym on the box to make it work
Is the transport stream buffered to the box?
I think JP had to sign a non disclosure agreement (or similar) therefore the inner workings are his trade secrets

Cheers Roger VK5YYY
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Re: mini tutioune stand-alone

Postby F6DZP » Tue 16 Apr 2019 06:38

Hello,

Would it be possible to use an Arduino-like processor with LCD display to set the frequency


I think It will be very difficult to do it with an arduino : the demodulator chip has 1000 registers to set, some things must be set dynamically... it is not just sending twelve parameters via I2C.
Actually Minitioune source code has more than 70 000 lines.

Is the datasheet for the Serit tuner free available

it is under NDA.

I am trying to use a DreamBox like , taking control of the chip. that could offer another stand alone solution.

Jean-Pierre F6DZP
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Re: mini tutioune stand-alone

Postby VK5YYY » Thu 18 Apr 2019 01:27

Dreambox + Serit = Brilliant Idea!

Opens up many possibilities

How about Lounge room DATV, the XYL will never know ;)
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Re: mini tutioune stand-alone

Postby Robbiek56 » Thu 16 May 2019 18:27

Recently I am using the Octagon SF8008 receiver with OpenATV 6.2 firmware loaded. This works reasonable with SR down to 250KS.
This is a solution for people who want a stand-alone receiver. However the mini tutioune with Serit NIM is better and more "user friendly" for DATV use.
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Re: mini tutioune stand-alone

Postby BlackForrest » Fri 28 Jun 2019 18:30

Since there is no Linux support for multitoune it would be impossible.....if there were linux support, so we would be able to use SBCs
like the new Odroid N2 to build powerful (mobile?) Minitouner standalones with analyzer and audio-video hardware
decoding function.....as you here can see ,it would be also possible to add, with some components nim tuner to serial input,
so no need of Ft-Usb chip ;)
https://discourse.coreelec.org/t/odroid ... rs/5014/40
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