There is no equipment for the emission
to be FSK or PSK.
This should read there is no requirement for the emission to be FSK or PSK.
73,
Mark N5RFX
Need a Digital mode QSO? Connect to Telnet://cluster.dynalias.org
Other areas of interest:
The MixW Reflector :
-Original Message-
From: digitalradio@yahoogroups.com [mailto:[EMAIL PROTECTED]
Sent: Thursday, August 31, 2006 11:56 PM
To: digitalradio@yahoogroups.com
Subject: Re: [digitalradio] USA; Baud Limit = 300 Symbols Per Second (HF
Digital Data)
[stuff deleted]
This might be true if the 64
So what would be the difference if I transmitted 64 tones/carriers each
modulated at 300 baud but transmitted them through one transmitter or 64
tones/carriers through 64 transmitters into one antenna?
Walt,
From a regulatory standpoint I don't think there is a problem. I think
that Pawel
@yahoogroups.com
Subject: RE: [digitalradio] USA; Baud Limit = 300 Symbols Per Second (HF
Digital Data)
So what would be the difference if I transmitted 64 tones/carriers each
modulated at 300 baud but transmitted them through one transmitter or 64
tones/carriers through 64 transmitters into one
I wasn't picking on Pawel at all...I just used MT63 as an example.
Walt,
I understand. My diatribe was to make the point that the occupied bandwidth
has a bearing on the general acceptance of a mode.
73,
Mark N5RFX
Need a Digital mode QSO? Connect to Telnet://cluster.dynalias.org
Symbols Per Second (HF
Digital Data)
I wasn't picking on Pawel at all...I just used MT63 as an example.
Walt,
I understand. My diatribe was to make the point that the occupied bandwidth
has a bearing on the general acceptance of a mode.
73,
Mark N5RFX
Need a Digital mode QSO? Connect
Walt,
There are typically layers of stations on many of the bands. It
depends upon your antenna system and to a certain extent, operator
skill, when attempting to work really weak stations. It is not uncommon
for wall to wall signals where you can not find a decent open area. Not
to mention
PROTECTED]
Sent: Wednesday, August 30, 2006 10:26 PM
To: digitalradio@yahoogroups.com
Subject: [digitalradio] USA; Baud Limit = 300 Symbols Per Second (HF
Digital Data)
It appears that USA hams are the only ones in the world operating
under the thumb of such an obsolete 300 baud limit for digital data
Bonnie,
If MT-63 is legal on the ham bands, since each tone runs at 10 or 20
baud depending upon the commonly used versions of this mode, but has 64
tones, it would seem that it is running well over 300 baud when you
consider the entire waveform.
The question that I need to be clear on is how
at Scott AFB.
Walt/K5YFW
-Original Message-
From: digitalradio@yahoogroups.com [mailto:[EMAIL PROTECTED]
Sent: Thursday, August 31, 2006 11:25 AM
To: digitalradio@yahoogroups.com
Subject: Re: [digitalradio] USA; Baud Limit = 300 Symbols Per Second (HF
Digital Data)
Bonnie,
If MT-63
A-63 is legal on the ham bands, since each tone runs at 10 or 20
baud depending upon the commonly used versions of this mode, but has 64
tones, it would seem that it is running well over 300 baud when you
consider the entire waveform.
The entire waveform is one symbol. There are 10 symbols per
Mark and group,
When you say the entire waveform is one symbol, could you expand that
a bit. What do you mean by the waveform. Do you mean the total
waveform of the emission spread out over the l KHz or 2 KHz bandwidth?
I am probably just not understanding this correctly but if there are 64
It appears that USA hams are the only ones in the world operating
under the thumb of such an obsolete 300 baud limit for digital data
on HF! As far as I have been able to research, the rest of the world's
hams have no such 300 baud limitation placed upon them.
The USA FCC rule is 300 baud
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