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Astrometa (mn88473) DVB-C

Added by Lipe Keizo almost 8 years ago

Hi everyone.

I'm using the Astrometa USB tuner on my arm NAS running linux-kirkwood-dt and i'm having a problem that i cannot identify where it comes from.

My DVB-C network has 24 muxes from 121.5mhz to 714mhz and i only get 21 of the 24, the missing ones are 179.5, 219.5, 240.5. I've tried to connect the coax cable directly without any splitter (only using one) and those 3 muxes still fail to scan. On my Wetek Play all muxes are scanned correctly even if i'm using the splitter so signal problems are ruled out.

Can someone shed some light where this problem comes from, is it a driver/firmware problem?

Thank you.


Replies (7)

RE: Astrometa (mn88473) DVB-C - Added by Anthony Thomas almost 8 years ago

I've got that tuner and have a similar but different issue. I'm unable to receive muxes above ~650 MHz

I'm in the UK and believe the Cable Broadband frequencies are in the 140-340 MHz region. Are you sure they are actually working DVB/TV muxes? As TVH finds the broadband muxes but obviously can't scan them.

RE: Astrometa (mn88473) DVB-C - Added by Lipe Keizo almost 8 years ago

The muxes are working on my Wetek Play tuner but on the USB tuner the scan always fails.

As far as muxes above 650mhz i can receive them fine, my last mux is on 714mhz and the tuner detects all the channels.

RE: Astrometa (mn88473) DVB-C - Added by Anthony Thomas almost 8 years ago

Interesting. What system, OS and kernel are you using it on?

RE: Astrometa (mn88473) DVB-C - Added by Lipe Keizo almost 8 years ago

I've got it set up on a Seagate Goflex running arch (arm) linux with the kirkwood-dt kernel (4.8.11) and Antti Palosaari latest firmware.

RE: Astrometa (mn88473) DVB-C - Added by Louis C over 7 years ago

Hi Lipe,
I'm facing a similar issue with a mn88473 on similar frequencies/muxes.
Tried in Ubuntu and Raspberry with same results, muxes on simular freq fail to scan, all other freq/muxes OK.
Did you manage to solve your issue?
Thanks and kind regards

RE: Astrometa (mn88473) DVB-C - Added by Lipe Keizo over 7 years ago

Hi.

Actually i couldn't solve the problem so i'm just using this adapter on dvb-t.
Sorry if i can't be more helpfull but after a while trying to sort this out i gave up.

Regards.

RE: Astrometa (mn88473) DVB-C - Added by Louis C over 7 years ago

Hi,
Thanks for the feedback. I'm almost giving up, as well.
Regards.

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