News broadcast use of RTTY or SITOR mode B
 

I've been looking to see if I can find any news broadcasters like
Reuters or AP still using teletype. I have not found any so far. Is
anyone aware if commercial broadcasters still using teletype?

Thanks,

--Bruce

Nah, this stuff is on satellite these days. I've seen once in a
while receptions of stuff from the Philippines and Argentina, but it's
very very rare. 73s Mike


Robert Bruce Carleton wrote:
I've been looking to see if I can find any news broadcasters like
Reuters or AP still using teletype. I have not found any so far. Is
anyone aware if commercial broadcasters still using teletype?

Thanks,

--Bruce

Too bad. It looks like SITOR B and NAVTEX would make a good news
clippings distribution method.

michael agner wrote:

Nah, this stuff is on satellite these days. I've seen once in a while
receptions of stuff from the Philippines and Argentina, but it's very
very rare. 73s Mike


Robert Bruce Carleton wrote:

I've been looking to see if I can find any news broadcasters like
Reuters or AP still using teletype. I have not found any so far. Is
anyone aware if commercial broadcasters still using teletype?

Thanks,

--Bruce

Subject: News broadcast use of RTTY or SITOR mode B
From: michael agner
Date: 9/4/2004 7:02 PM Central Daylight Time
Message-id:

Nah, this stuff is on satellite these days. I've seen once in a
while receptions of stuff from the Philippines and Argentina, but it's
very very rare. 73s Mike


Robert Bruce Carleton wrote:
I've been looking to see if I can find any news broadcasters like
Reuters or AP still using teletype. I have not found any so far. Is
anyone aware if commercial broadcasters still using teletype?

Thanks,

--Bruce








You are wrong on that.

I can copy the Coast Guard most any time on sitor B Navtex and their TTY is
active too. It hasn't all gone away yet.


Les Locklear
On The Gulf of Mexico
Collins 51J4
Hammarlund HQ-120X
R-390/URR
Ten Tec RX-350D
Alpha Delta Sloper
Quantum QX Loop
Various antennas
Monitoring since ' 57

Llgpt wrote:

Subject: News broadcast use of RTTY or SITOR mode B
From: michael agner
Date: 9/4/2004 7:02 PM Central Daylight Time
Message-id:

Nah, this stuff is on satellite these days. I've seen once in a
while receptions of stuff from the Philippines and Argentina, but it's
very very rare. 73s Mike


Robert Bruce Carleton wrote:
I've been looking to see if I can find any news broadcasters like
Reuters or AP still using teletype. I have not found any so far. Is
anyone aware if commercial broadcasters still using teletype?

Thanks,

--Bruce








You are wrong on that.

I can copy the Coast Guard most any time on sitor B Navtex and their TTY is
active too. It hasn't all gone away yet.

That may indeed be true, but the news broadcasts have all but virtually
disappeared.

dxAce



Les Locklear

dxAce wrote in :



That may indeed be true, but the news broadcasts have all but virtually
disappeared.

dxAce


SIGH Yes they have gone the way of the DoDo unfortunately. As did the
press wireless stations (great for morse code practice) they replaced before
them :( Replaced by satellite and RSS feeds on the net. Used to be great fun
Having the old Model 15 Reperf clacking away in the shack copying the news
wires. The smell of oil and ozone and getting the mews before it was in the
papers or on the radio !!! :)

--
Panzer

You're probably thinking about the NAVAREA warnings and other
maritime broadcasts; yes, they're still very much around - I copied some
from USCG Boston last night - but news organizations such as NBC, ABC,
CNN, FOX and so on are all gone from HF.
73s Mike

Llgpt wrote:
Subject: News broadcast use of RTTY or SITOR mode B
From: michael agner
Date: 9/4/2004 7:02 PM Central Daylight Time
Message-id:

Nah, this stuff is on satellite these days. I've seen once in a
while receptions of stuff from the Philippines and Argentina, but it's
very very rare. 73s Mike


Robert Bruce Carleton wrote:

I've been looking to see if I can find any news broadcasters like
Reuters or AP still using teletype. I have not found any so far. Is
anyone aware if commercial broadcasters still using teletype?

Thanks,

--Bruce








You are wrong on that.

I can copy the Coast Guard most any time on sitor B Navtex and their TTY is
active too. It hasn't all gone away yet.


Les Locklear
On The Gulf of Mexico
Collins 51J4
Hammarlund HQ-120X
R-390/URR
Ten Tec RX-350D
Alpha Delta Sloper
Quantum QX Loop
Various antennas
Monitoring since ' 57

Yeah, I remember talking to a very famous ham about that very subject
many years ago on a 2 meter repeater in the NYC area. He was a reporter
during WW2 and worked in the press office, and he recounted to me
stories about whole banks of Model 60s clacking away with the news.
He used to work for CBS news and is now seen on the Discovery channel
from time to time. 73s Mike

Panzer240 wrote:

dxAce wrote in :



That may indeed be true, but the news broadcasts have all but virtually
disappeared.

dxAce



SIGH Yes they have gone the way of the DoDo unfortunately. As did the
press wireless stations (great for morse code practice) they replaced before
them :( Replaced by satellite and RSS feeds on the net. Used to be great fun
Having the old Model 15 Reperf clacking away in the shack copying the news
wires. The smell of oil and ozone and getting the mews before it was in the
papers or on the radio !!! :)

You're probably thinking about the NAVAREA warnings and other
maritime broadcasts; yes, they're still very much around - I copied some
from USCG Boston last night

I have a question? Do you actually need a radio that recieves SSB to copy these
signals with a RTTY decoder, or can the RTTY decoders still copy them fine even
if your shortwave radio can only recieve in AM mode?

In article ,
(Stereophile22) wrote:

You're probably thinking about the NAVAREA warnings and other
maritime broadcasts; yes, they're still very much around - I copied
some from USCG Boston last night

I have a question? Do you actually need a radio that recieves SSB to
copy these signals with a RTTY decoder, or can the RTTY decoders
still copy them fine even if your shortwave radio can only recieve in
AM mode?

The decoders operate on the demodulated tones. For RTTY there are two
tones for 1 and 0. You need the radio to generate these tones by
operating in SSB mode (usually USB).

--
Telamon
Ventura, California

Robert Bruce Carleton wrote:

Too bad. It looks like SITOR B and NAVTEX would make a good news
clippings distribution method.

I think it is too hard to encrypt, and it is less reliable than satellite.

The decoders operate on the demodulated tones. For RTTY there are two
tones for 1 and 0. You need the radio to generate these tones by
operating in SSB mode (usually USB).

thanks. Now I know to get a working shortwave radio with SSB capability before
getting a RTTY decoder.

In article . net,
John McHarry wrote:
Robert Bruce Carleton wrote:

Too bad. It looks like SITOR B and NAVTEX would make a good news
clippings distribution method.

I think it is too hard to encrypt, and it is less reliable than satellite.

FEC-TOR is pretty trivial to encode, it's just the 5 bit teletype code,
with the start and stop bits stripped and some parity bits added, and
the three character block sent twice with some bits inverted.

Remember, this stuff was designed in the late '60s-early '70s to retrofit
onto existing RTTY gear, before the days of microcomputers. Back when
the hardware for a one byte register would cost $20 or so.

But it's all uppercase, so I doubt that any newswire would be interested
anymore.

Mark Zenier Washington State resident

In article ,
Stereophile22 wrote:
The decoders operate on the demodulated tones. For RTTY there are two
tones for 1 and 0. You need the radio to generate these tones by
operating in SSB mode (usually USB).

thanks. Now I know to get a working shortwave radio with SSB capability before
getting a RTTY decoder.

Just be aware that, if you want to get serious, you will have to get
a fairly high performance receiver, (on the par with an Icom R-75 or
the like). The maritime TOR stuff is narrowband shift (170? Hz) and the
channels are closely spaced (1/2 kHz).

I use(d) an Kenwood R-1000, which is designed mostly for audio broadcast,
and found that the 2.1 kHz narrow bandwidth (SSB) filter was often a bit
too wide and that the tuning drifted just a bit too much (maybe 50 Hz) so
that you had to babysit it to get solid copy.

Mark Zenier Washington State resident