[OZAPRS] HF net stations

Peter Wicklein vk3tbn at hotmail.com
Thu Jun 23 16:36:16 AEST 2016


Brilliant, thanks for publishing. Very useful and should make things much easier to adapt and assist with interoperability of systems to net correctly.?

Also thanks for the heads up on some of the other APRS modes, was aware of some but not all you mentioned.... some reading for me..


Sent from my Windows 10 phone

From: Gerard Hill<mailto:gerardvk2io at gmail.com>
Sent: Thursday, 23 June 2016 4:27 PM
To: Peter Wicklein<mailto:vk3tbn at hotmail.com>; Scott Evans<mailto:vk7hse at gmail.com>; VK / ZL APRS Users<mailto:ozaprs at aprs.net.au>
Subject: Re: [OZAPRS] HF net stations

Hi Peter,

Feel free to use USB if you wish. FSK packet is normally quoted in LSB on 40m though works equally well in USB. The same cannot be said of many other digital modes - and Robust packet may be one of those.
The current centre frequency is 7046.9 kHz so just subtract off your modem's centre frequency to work out the USB dial frequency. This table may help:


Tone Frequencies

Dial Frequency (kHz)


1070/1270 (Group A)



1100/1300 (Group B)



1600/1800 (Group C)



2025/2225 (Group D)



2100/2300 (Group E)



2110/2310 (Group F)



2125/2325 (Group G)



Gerard - VK2IO

On 23/06/2016 1:36 PM, Peter Wicklein wrote:

Great news, is it possible that  you could be USB, as this would fit the all other country's convention on 40m and would suit the use of old but cheap Codan/hawks. . Etc which some are usb only...?

If not still a great win we have an agreed 40m frequency


Sent from my Windows 10 phone

From: Scott Evans<mailto:vk7hse at gmail.com>
Sent: Wednesday, 22 June 2016 8:41 PM
To: vk2io at amsat.org<mailto:vk2io at amsat.org>; VK / ZL APRS Users<mailto:ozaprs at aprs.net.au>
Subject: Re: [OZAPRS] HF net stations

Okay, thanks for the update. I'll shift up to where you are currently, as there's no point in making noise if no one is going to hear me! ??

On Wed, 22 Jun 2016, 20:31 Gerard Hill <<mailto:gerardvk2io at gmail.com>gerardvk2io at gmail.com<mailto:gerardvk2io at gmail.com>> wrote:
Up to you, Scott. The band plan is a recommendation - its not legally binding.
My Igate is currently on 7048.6 LSB and has also been on 7045. I wont be returning to 7036.
Once we decide on a final frequency I'll move there.

Gerard - VK2IO

On 21/06/2016 4:55 PM, Scott Evans wrote:

So does that mean I should cease on 7.036? I'm not sure how many people are active on 40m (both users & i-gates)

Guessing we might need a new thread to discuss the 40m frequency...

On Tue, 21 Jun 2016, 16:27 Gerard Hill <gerardvk2io at gmail.com<mailto:gerardvk2io at gmail.com>> wrote:
Here's the list, Andrew:

A lot has changed in two years so I shall have to update the site.
We no longer have an official 40m APRS frequency since the WIA band plan
change last year placed 7036 kHz in the CW segment.
One option would be to shift up 10 kHz to 7046 like the packet chat net
did to 7047.17. Alternatively, align with Japan at 7045 or EU at 7048.6.
There's nothing running on 20m at the moment either.

Your sailor should have a lot of success on 30m APRS as there are plenty
of Igates.

Gerard - VK2IO

On 21/06/2016 4:00 PM, Andrew Rich wrote:
> Was approached by a guy sailing
> Wants to run HF APRS
> Where are the fixed HF I gates ?
> Andrew
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OZAPRS at aprs.net.au<mailto:OZAPRS at aprs.net.au>

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