[OZAPRS] 80m HFPRS

Glen English VK1XX glenlist at pacificmedia.com.au
Tue Jan 2 19:11:36 AEDT 2018


am sick past 3 days, still sick. have not moved much.

built a mag shielded loop for receive on Saturday, just got to put it up.

will have TX and RX on separate antennas running 24/7 from weekend for 
those monitoring

g



On 30/12/2017 6:19 PM, Glen English VK1XX wrote:
> Ha! WIA NTAC ? ROFL. just ignore them.  OK will figure out something.
>
> on signals, essentially, if PSK31 works, this works. OK
>
>
> On 30/12/2017 4:57 PM, Scott Evans 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 <mailto: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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