gordon77
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Re: New TV Tuner from HQ

Tue Oct 30, 2018 9:19 pm

mooblie wrote:
Tue Oct 30, 2018 8:41 pm
Some good ideas for alternatives there. Thanks!

For a neat solution (acceptable to SHMBO) I was thinking of mounting a Pi+TVhat in an old set-top Freeview tuner box (available at all good car-boots for a quid or two). But the Belling-Lee sockets on those are usually either PCB-mounted or fixed to a UHF tuner module - not much use. :(
Something like this any use?


https://www.amazon.co.uk/SODIAL-Coaxial ... B00H3CS4BK

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mooblie
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Re: New TV Tuner from HQ

Tue Oct 30, 2018 9:29 pm

Thanks, Gordon. Good, but no cigar! :D

I've seen similar, but .... the Belling-Lee/coax socket is not panel-mounted. :(

6by9
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Re: New TV Tuner from HQ

Wed Oct 31, 2018 4:27 pm

For those who are having to edit their local transmitter info, there is an updated set of dtv scan files from the end of September at https://git.linuxtv.org/dtv-scan-tables.git/log/, so that should deal with all the recent retunes. All the data appears to have been pulled from www.digitaluk.co.uk so should be reliable.
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gordon77
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Re: New TV Tuner from HQ

Wed Oct 31, 2018 5:01 pm

mooblie wrote:
Tue Oct 30, 2018 9:29 pm
Thanks, Gordon. Good, but no cigar! :D

I've seen similar, but .... the Belling-Lee/coax socket is not panel-mounted. :(
I am sure it could be modified if required.

hippy
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Re: New TV Tuner from HQ

Wed Oct 31, 2018 6:29 pm

6by9 wrote:
Wed Oct 31, 2018 4:27 pm
... so that should deal with all the recent retunes.
Don't know what they've done but, from having only break-up, I'm now seeing over 100 DVB-T and over 30 radio channels when I did an auto-tune on my TV, all with 'good signal level'. Not bad for an aerial which is hanging over the eves and pointing at the ground. I have an old USB tuner working with tvheadend but as nothing I have supports HD I might be back in the market for the Pi TV Tuner.

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DarkPlatinum
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Re: New TV Tuner from HQ

Mon Nov 12, 2018 7:47 pm

PeterO wrote:
Sun Oct 21, 2018 5:08 pm
pimoroni web site wrote: This new dongle comes with an extendable antenna (120-350mm) with a 1 metre cable and MCX connector that plugs into the side of the USB dongle. The antenna works best when its length is a multiple of a quarter of the ADS-B transmission wavelength, which is 69mm. Experiment with different antenna lengths to find the optimum.
To get 1 quarter wave (68mm) you will have to cut it.
2 quarter waves (136mm) is unlikely to work well as it will present a high impedance at the bottom.
3 quarter waves (204) will probably work best.

PeterO
Sir, I was wondering how well an antenna with longer then a wave length would fare? For example an antenna at 408mm which 1 and 1/2
wavelengths or an antenna at 1 and 3/4 wavelength. If your planning on replying to me, it might be best to post it here to prevent cluttering this post

viewtopic.php?f=91&t=226707&p=1391108#p1391108
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