47cfr97.307(f)(2) limits the bandwidth of all transmissions in the phone/image segments to that of AM or SSB communications quality audio which is usually interpreted as 3 kHz. There is nothing allowing data (computer communications) or RTTY (direct printing telegraphy) in the phone/image segments. Unfortunately, image is defined as facsimile and television.
73, John KD6OZH ----- Original Message ----- From: jgorman01 To: [email protected] Sent: Tuesday, May 01, 2007 20:56 UTC Subject: [digitalradio] Re: ARRL wake up ...... Can you give me a regulation that restricts very wide modems within the phone/image segments. If you are talking about using data in the phone/image segment, I'll agree but I don't see a paragraph that limits bandwidth within the phone/image segment. I will agree that wider bandwidths could be allowed on the 70cm band. Wonder why a petition wasn't filed that dealt with this issue only. Jim WA0LYK --- In [email protected], "John B. Stephensen" <[EMAIL PROTECTED]> wrote: > > 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
