New DVB-T tuner didn't find tv channels

Help and Support Vero 4K / Vero 4K +
1

I have new Vero4k+ with DVB-T tuner from osmc.tv, in dmesg I found:

[    3.036935] usb 1-1: Product: dvbt2
[    3.036940] usb 1-1: Manufacturer: astrometadvbt2
[    4.242957] usb 1-1: dvb_usb_v2: found a 'OSMC Engineering DVB-T2' in warm state
[    4.330145] usb 1-1: dvb_usb_v2: will pass the complete MPEG2 transport stream to the software demuxer
[    4.330182] dvbdev: DVB: registering new adapter (OSMC Engineering DVB-T2)
[    4.331260] dvbdev: dvb_create_media_entity: media entity 'dvb-demux' registered.
[    4.403707] i2c i2c-1: cxd2841er_attach(): attaching CXD2837ER DVB-C/T/T2 frontend
[    4.403733] usb 1-1: DVB: registering adapter 0 frontend 0 (Realtek RTL2832 (DVB-T))...
[    4.403756] dvbdev: dvb_create_media_entity: media entity 'Realtek RTL2832 (DVB-T)' registered.
[    4.403906] usb 1-1: DVB: registering adapter 0 frontend 1 (Sony CXD2837ER DVB-T/T2/C demodulator)...
[    4.403921] dvbdev: dvb_create_media_entity: media entity 'Sony CXD2837ER DVB-T/T2/C demodulator' registered.
[    4.508756] rc rc1: OSMC Engineering DVB-T2 as /devices/c9000000.dwc3/xhci-hcd.0.auto/usb1/1-1/rc/rc1
[    4.508984] input: OSMC Engineering DVB-T2 as /devices/c9000000.dwc3/xhci-hcd.0.auto/usb1/1-1/rc/rc1/input5
[    4.511545] rc rc1: lirc_dev: driver ir-lirc-codec (dvb_usb_rtl28xxu) registered at minor = 1
[    4.511561] usb 1-1: dvb_usb_v2: schedule remote query interval to 200 msecs
[    4.520249] usb 1-1: dvb_usb_v2: 'OSMC Engineering DVB-T2' successfully initialized and connected
[    4.520376] usbcore: registered new interface driver dvb_usb_rtl28xxu
[   19.823634] usb 1-1: DVB: adapter 0 frontend 0 frequency 0 out of range (174000000..862000000)

TvHeadend found only 2 muxes with total of 8 channels. So I tried another tuner (bought 2 years ago from osmc.tv too):

[    4.303444] usb 1-1: DVB: registering adapter 0 frontend 0 (Realtek RTL2832 (DVB-T))...
[    4.303467] dvbdev: dvb_create_media_entity: media entity 'Realtek RTL2832 (DVB-T)' registered.
[    4.303624] usb 1-1: DVB: registering adapter 0 frontend 1 (Panasonic MN88473)...
[    4.303639] dvbdev: dvb_create_media_entity: media entity 'Panasonic MN88473' registered.

And now 63 channels found with exactly the same settings. Is the new one bad piece or has just low gain/sensitivity?
I tried both tuners plugged directly to antena and through splitter but it had no effect.

Thanks.

BTW: What to create DVB-T forum category?

2

Maybe the signal is not strong enough.
Is anything else connected to USB?

3

Yes, it seems that signal is strong enough for old tuner but isn’t for the new one :frowning:

I tried scanning with tuner attached

  • directly to vero (2nd usb port used by remote control receiver)
  • indirectly through powered usb hub
    (in this case together with wireless keyboard receiver)

but no difference observed.

4

The signal may be marginal. Is there a way you can improve this and try again?

5

Hello Sam,
you are right - I just installed ubuntu 19.10 + tvheadend on my pc and tuner works fine!
I will experiment with it on weekend.

1 Like
6

Solved: After removing /home/osmc/.hts and reinstallation of tvheadend package “Sony” tuner was found together with “Realtek” and 65 channels found.

I probably forgot to clean .hts after switching tuners.