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.

 

[johan]

Hello members,

I've been in contact with Tyler (the Antennaman) the past few days, via email, and yesterday I received a message which stations I could (possibly) receive.
He said the higher powered low VHF channels are most likely to travel to your country at certain points. WDPN, WACp WJLP, and WPVI are a few examples.
WDPN is 2, WJLP is 3, WACP is 4, and WPVI is 6.
My question ; through which city / city do those signals come.

Mvg

 

[johan]

And my next question;
there is also a (radio) signal from America / Canada so that you can align your antenna.

Mvg

 

[johan]

And my next question;
there is also a (radio) signal from America / Canada so that you can align your antenna.

Mvg

I mean, is there a signal ??

 

[Jim5506]

You can look up the call letters of those channels on the FCC database at TV Query Broadcast Station Search
Just looking a the first 2 they are channel 2 and 3 from Delaware and New Jersey. These low frequency stations have signal that naturally carries farther than higher frequencies and therefore are limited in their broadcast wattage to around 50KW.

Honestly picking one of them up from east of the Atlantic would be extremely unlikely, but whatever floats your boat. Buy the way you need a low frequency TV or short wave antenna as these channels range from 54 to 72 so the antenna elements would be 3 to 4 meters tip to tip as a half wave antenna. The antenna pictured in post 36 appears to be similar to a VHF high range antenna optimized for channels 7-13 and not suitable for extreme long range VHF low frequency reception.

Unfortunately there are radio and television signals from thousands of stations across the USA and Canada and probably nearly a thousand TV stations BUT you must concentrate on one channel at a time, so point your antenna slightly north of west and you'll be looking toward the shortest distance to the Northeastern USA. There is no signal frequency or station that can be singled out as receivable at any given time at your location.

You are participating in an experiment similar to scientists scanning the universe looking for communications from ExtraTerrestrial beings.

 

[Mr Tony]

Look at it from a place way easier
Www.Rabbitears.info

Most listed above are the Philadelphia market. WJLP is New York City

 

[johan]

Can any of you show me through a picture how big a Vhf-low band really is. If they are talking about 3 to 4 meters per element length.

Mvg

 

[TNGuy84]

The band should be about 2.8 to 1.8 meters on a half-wave dipole antenna. My understanding is that you would cut these numbers in half and measure out 1.4 meters for one piece of metal and 1.4 meters for the other piece of metal to get down to 54MHz and join the two in the middle with a 300 Ohm to 75 Ohm balon. I admire your effort to dx these signals, but I have a feeling that you won't see anything except noise at your distance. I'm 30 miles from a 54MHz transmitter, and I can't even get anything at my location. The VHF low band is so prone to noise interference that you need lots of signal to get anything usable. Noisy power lines, LED bulbs, and motors can cause enough interference to the point you get nada. One of my local stations relocated to 54MHz after being on UHF since the 60's, and apparently very few people in the local area can even pick it up.

 

[johan]

There is not a signal everywhere. I have experienced this here. In the attic, with a funke antenna that is intended for the Uhf and the transmitter tower is 30 km from Aalten (Holland) where I live. Mvg

 

[johan]

Can any of you show me through a picture how big a Vhf-low band really is. If they are talking about 3 to 4 meters per element length.

Mvg

I mean the antenna.

 

[Brct203]

Can any of you show me through a picture how big a Vhf-low band really is. If they are talking about 3 to 4 meters per element length.

Mvg

you might still see some VHF band 1 antennas on older roofs in the Netherlands as channel E4 was used for Nederland1 TV at the Lopik transmitter (between Utrecht and Rotterdam), until the switch to digital about 15 years ago.

Now for a cheap/easy way to get an ATSC 1 tuner, your best bets are either a digital converter box from the US, typicaly used to add Digital capability to older TVs, or better, a Hauppauge 950Q USB dongle.

Tropo will NOT carry any TV signal across the Atlantic, E-skip might but it's really a bit of a stretch and you could spend a lifetime hunting for it and never receive it. Of course if you look at old DX-TV reports you will see occasional reports of BBC received in Nova-scotia etc, but that was a bit easier when the signals were analog (you could sometimes visually identify what it was despite the noise and distortion, digital is a bit less forgiving) and band 1 (VHF-Low in US speak) was used a lot more with powerfull transmitters. I used to do a lot of DXing from the area of Dunkirk in northern France in the 80's and early 90's. Tropo from UK, Germany, Netherland was quite frequent, occasionaly also bringing in UHF from Denmark, from DDR, etc... and with E-skip i received TV from USSR, Sweden, Italy, Norway, Iceland, Spain quite frequently during the summer. I suspect I once got TV from Jordan on channel E3 but i'm not 100% certain. However I never received anything from as far as North America. This said, there used to be some low-power NTSC stations for US and Canadian military bases in Germany, also one near Mons/Bergen in Belgium, and one in Soesterberg, Nederland. I don't know if any of those still exist - I very much doubt it.

you might find this site interesting: Rijn Muntjewerff TV DX World
Rijn was the king of TV DXing in Europe in those days. Unfortunately he passed away in 2014.

 

[johan]

first want to see if I can pick up / receive a radio signal.

 

[Jim5506]

This is a Winegard 8200-U VHF-low, VHF-high and UHF antenna. The three longest elements on the right are for channels 2, 3 and 4. The channel 2 element (longest) is 110 inches or 2.79 meters tip to tip. The boom is 4.27 meters long, a VERY large antenna.

You are 8,714 kilometers from New York City. Typical low VHF reception becomes fringe at 120 KM

 

[Jim5506]

first want to see if I can pick up / receive a radio signal.

Try short wave.