[OZAPRS] APRS Databusrt

Hamish Moffatt hamish at cloud.net.au
Sat Aug 11 10:49:17 EST 2007

On Sat, Aug 11, 2007 at 10:29:44AM +1000, Andrew Rich wrote:
> I would like to make representation to the company that makes easy
> They are currently on 434 and 900 MHz licence free bands.
> They do 19k2 on air at 10 mW.
> I would like to ask them about producing a module that is up the band a
> into the 70 cm region.
> I have looked at after burners. For $80 I can get a kit that will give
> around 15 watts out.
> The databurst is true FSK at 100 kHz.
> I am now curious as to the licence implications.
> Where would you run a digital signal around 100 kHz wide on 70 cm ?

The license conditions are available at

In short, above 420MHz you can use as much bandwidth as you like if you
have an advanced license. (With the exception that 420-430MHz is
unavailable in many capital cities.)

In terms of bandplans, see

Above 440MHz is reserved for repeater links and ATV and a few hunderd
kHz reserved. Personally I couldn't see the harm in operating up there.
Also 440MHz+ is available in the US which might appeal to the
manufacturer also.

Amateur standard stations are limited to 16kHz maximum on any band.

Hamish Moffatt VK3SB <hamish at debian.org> <hamish at cloud.net.au>
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