The basic problem is that the current regulations restrict the content of
amateur transmissions. It shouldn't matter whether you are transmitting text,
voice or images. On HF, you can transmit voice or images in a 3 kHz or 6 kHz
bandwidth but to transfer a file during that QSO you have to change frequencies
because it is considered data. On the 70 cm band, real-time compressed video
could be sent in a 300 kHz bandwidth but not data.
73,
John
KD6OZH
----- Original Message -----
From: Howard Brown
To: digitalradio@yahoogroups.com
Sent: Tuesday, May 01, 2007 16:33 UTC
Subject: Re: [digitalradio] Re: ARRL wake up ......
John, please tell us what modes need more than 100 kHz
bandwidth, or even which mode needs the 100 kHz.
Personally, I have not experienced these but would like
to hear about them.
Howard K5HB
----- Original Message ----
From: John B. Stephensen <[EMAIL PROTECTED]>
To: digitalradio@yahoogroups.com
Sent: Tuesday, May 1, 2007 10:30:10 AM
Subject: Re: [digitalradio] Re: ARRL wake up ......
One problem is that very wide modems are allowed only outside the phone/image
segments, which is the opposite of what is reasoable for users. Another example
is that data modes are only allowed a 100 kHz bandwidth on 70 cm which is 30
MHz wide.
73,
John
KD6OZH
----- Original Message -----
From: jgorman01
To: digitalradio@ yahoogroups. com
Sent: Tuesday, May 01, 2007 15:18 UTC
Subject: [digitalradio] Re: ARRL wake up ......
I must be one of the stupid folks that have a "misconception" about
what the withdrawn petition was to accomplish.
Could you enlighten us on just exactly what "modes" are being blocked
by the current regulations. What bands do these modes operate on?
What is the purpose of the blocked modes?
The ARRL stated that very wide multi-tone modems ARE allowed under
current regulations and I guess I'm just not educated enough to know
that implementation of some better modes are being blocked. Heck,
pactor 3 only operates at 100 baud. Does SCS have an even better
modem that works at something over 300 baud?
Jim
WA0LYK
--- In digitalradio@ yahoogroups. com, "Bill Vodall WA7NWP" <[EMAIL
PROTECTED]>
wrote:
>
> > NO ONE wants to hamper experimenting but at the same
> > time no one should want to crush other older modes ...
>
> No one wants to crush the older modes -- but they can't block moving
> to new modes and that's what's happening now.
>
>
> Bill, WA7NWP
>
