Scott Evans vk7hse at gmail.com
Sat Dec 30 17:47:37 AEDT 2017

3.570 - 3.600 Digital data modes seems to be the current dedicated digital

On Sat., 30 Dec. 2017, 16:57 Scott Evans, <vk7hse at gmail.com> wrote:

> You'd need to check up on the current WIA Band Plan for the current
> digital segment as when I last had 300b packet running on 80m it was around
> 3.625+/- but I think that the digital segment has been lowered to align
> with other regions. I'll be interested in listening out for any signals
> (although it's going to be a struggle to get to south VK7) although I've
> only got a Hustler 5-BTV for HF and it's not that great on 80m but I'll
> keep an ear out when you do get something up and running...
> On Sat., 30 Dec. 2017, 16:45 Glen English VK1XX, <
> glenlist at pacificmedia.com.au> wrote:
>> I'm actually going to showcase this also on 80m. why 80m ? 80m is
>> characterized in the daytime by poor SNR for short <1000km  paths but
>> this mode can showcase just how good it is on vertical incidence paths.
>> anyone got any good ideas for an 80m freq ?
>> The mode is about 50Hz wide approx (at the moment- we might double that
>> speed to reduce TX time BUT increases bandwidth 2x and reduces
>> sensitivity 3dB)  .
>> The modem can demod multiple simultaneous present users.  so a sideband
>> passband is no big deal. or smaller.
>> and  maybe should start on 40m/30m , because people already have radios
>> listening there.
>> I guess just go in the existing 300 baud APRS freq segments ?
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