Broadcast? Sent from my Adobe Flash and Java challenged iPhone
On Jul 27, 2011, at 3:24 PM, "Nigel A. Gunn, W8IFF/G8IFF" <[email protected]> wrote: > Art... > What's the definition then of a one way only link, as in a TLM channel > or beacon? > > > On 07/27/2011 06:54 PM, W4ART Arthur Feller wrote: >> No need to guess or try to write new definitions. Here are definitions >> accepted by all administrations around the world and included in the radio >> regulations: >> >> RR 1.125 simplex operation: Operating method in which transmission is made >> possible >> alternately in each direction of a telecommunication channel, for example, >> by means of manual >> control2. >> >> RR 1.126 duplex operation: Operating method in which transmission is possible >> simultaneously in both directions of a telecommunication channel2. >> >> RR 1.127 semi-duplex operation: A method which is simplex operation at one >> end of >> the circuit and duplex operation at the other.2 >> >> >> 2 1.125.1, 1.126.1 and 1.127.1 In general, duplex operation and semi-duplex >> operation require two frequencies >> in radiocommunication; simplex operation may use either one or two. >> >> I hope this helps. >> >> 73, art….. >> W4ART Arlington VA >> >> >> >> http://afeller.us >> >> _______________________________________________ >> Sent via [email protected]. Opinions expressed are those of the author. >> Not an AMSAT-NA member? Join now to support the amateur satellite program! >> Subscription settings: http://amsat.org/mailman/listinfo/amsat-bb >> > > _______________________________________________ > Sent via [email protected]. Opinions expressed are those of the author. > Not an AMSAT-NA member? Join now to support the amateur satellite program! > Subscription settings: http://amsat.org/mailman/listinfo/amsat-bb _______________________________________________ Sent via [email protected]. Opinions expressed are those of the author. Not an AMSAT-NA member? Join now to support the amateur satellite program! Subscription settings: http://amsat.org/mailman/listinfo/amsat-bb
