Tv Broadcast signal`s

[johan]

Yea we have ATSC1.0 tuner card you can check our TBS6704 ,TBS6205se,TBS6209se ,How many frequency you need receive ?
you can use this to choose the right card for you :
https://www.tbsiptv.com/filter

 

[johan]

What is meant by this :
ATSC 1.0 and J.83B and especially J.83B Mvg

 

[N5XZS]

Johan,

J83B, as in QAM modulation scheme is known for cable TV 6 MHz channel use.

QAM modulation on over the air is not that suitable, due it can break up easily in mutipaths "Some ghosting issues analog or reflection issue in digital world"

For most of modulation use for over the air are ATSC 1.0 8VSB, ATSC 3.0 COFDM 6 MHz channel or OFDM, DVB T-1 and T2 COFDM 7 and 8 MHz channel spacing.

QAM is never been used for over the air use and one time used by ham radio OPS for experimental use on 70 Cm and shorter wavelength bands.

Hope this informations helps out!

 

[johan]

Okay, and what is 6m FT8

 

[N5XZS]

6 M is a ham radio band 50 to 54 MHz "USA" 50 to 52 or up to 54 MHz in some parts of Europe.

FT8, is used for narrowband digital text messaging mode mostly used in HF and VHF-low bands.

6 meter band is mostly used for two way voice communication in SSB, AM, NBFM, digital voice and some experimental digital narrowband TV.

Check out digital narrow band TV from UK, batc.org.uk, it pretty cool send digital fast scan TV only at 300 KHz wide or even narrower BW!

 

[johan]

Do you people have a (link) for me regarding the conditions of Tv signals from America/Canada. If I describe it so well and translate it with Bing.