[OZAPRS] HF APRS
David and Justine Olsen
davejust at bigpond.net.au
Mon Feb 2 08:30:38 EST 2009
I will shortly have a gate running on 20m
David
On 2 Feb 2009, at 06:45, Ray Wells wrote:
> Kinda looks like there's plenty of standards from which to choose.
>
> I'm using 14105.09 USB (1600/1800Hz) because there was previous
> activity there in VK. When my heard list included an Italian
> station I went searching and found that there were quite a number
> of international stations also using the same frequency that I'm on.
>
> It looks as if there are two principal 20m aprs frequencies. The
> question for VK is, which one should we use? Given that there was
> general acceptance of a bbs also being available on an aprs
> frequency for travellers, perhaps I (we) should stay put. I doubt
> that there will ever be enough bbs traffic on the 20m frequency for
> it to be considered a nuisance - there are no bbs mail broadcasts,
> and access currently requires a connection to my node (vk2tv-1)
> first, and than a connection from there to the bbs. The connection
> procedure could change to a direct connection but that won't
> increase the traffic level.
>
> With 20m Igates in their (renewed) infancy in VK, now is the time
> to decide which way we want to go.
>
> Already Scott vk2hse and myself have gates running, and perhaps
> Samantha has a gate running as well. Are there others, like the one
> in vk6?
>
> Discussion please.
>
> Ray vk2tv
>
>
> Michael Zwingl, OE3MZC wrote:
>> HF-APRS 14.103 LSB 300Baud (1600/1800Hz tones)
>>
>> see:
>>
>> 80m 3610 USB Robust-PR
>> 1500Hz via DB0UAL robust pr
>> 40m 7032,6 USB 300 Baud FSK 1700Hz
>> 40m 7035 LSB 300 Baud FSK 1700Hz
>>
>> 30m 10.147,6 USB 300 Baud
>> FSK 1700Hz world wide HF-APRS
>> 30m 10.151 LSB 300 Baud FSK
>> 1700Hz same QRG as above!
>> 30m 10.147,3 USB Robust-PR
>> 1500Hz world wide RPR-APRS
>>
>> 20m 14.102,0 USB Robust-PR
>> 1500Hz via DB0UAL robust-PR
>> 20m 14.103 LSB 300 Baud FSK
>> 1700Hz world wide HF- APRS
>> 20m 14.103,3 LSB Robust-PR
>> 1500Hz world wide RPR-APRS
>>
>> 17m 18.102 LSB 300 Baud FSK 1700Hz
>>
>> 15m 21.117 LSB 300 Baud FSK 1700Hz
>>
>> 10m 29.250 FM 1200 Baud
>> FSK 1700Hz 1000 Hz shift
>>
>> check your AFSK center frequency of your TNC or Soundcard modem,
>> since every model has different tones,
>> which will result in a different DAIL-QRG. For normal 300 baud
>> packet mode a hf-frequency accuracy
>> of +-20Hz is essential. For Robust-Packet mode (OFDM) frequency
>> drift of abt. +-240Hz is allowed.
>> Do not overdrive (overmodulate) your transmitter. Check for
>> distortion due to hf ingress and
>> keep your signal clean and narrow in bandwith.
>> ----- Original Message ----- From: "David and Justine Olsen"
>> <davejust at bigpond.net.au>
>> To: "Australian APRS Users" <ozaprs at aprs.net.au>
>> Sent: Friday, January 02, 2009 11:55 AM
>> Subject: Re: [OZAPRS] HF APRS
>>
>>
>>> I believe 14109, someone will correct me if I am wrong
>>>
>>>
>>>
>>>
>>> On 2 Jan 2009, at 20:50, Samantha Scafe wrote:
>>>
>>>> freq?
>>>> ----- Original Message ----- From: "David and Justine Olsen"
>>>> <davejust at bigpond.net.au>
>>>> To: "Australian APRS Users" <ozaprs at aprs.net.au>
>>>> Sent: Friday, January 02, 2009 7:25 PM
>>>> Subject: Re: [OZAPRS] HF APRS
>>>>
>>>>
>>>>> Prefer 20m
>>>>> so standard calls can use it
>>>>> On 2 Jan 2009, at 18:54, Samantha Scafe wrote:
>>>>>> Hi
>>>>>>
>>>>>> Just enquiring is there a need for a hf gate in cairns. If
>>>>>> there is I am more then willing to facilate it
>>>>>>
>>>>>>
>>>>>>
>>>>>>
>>>>>> Kind Regards,
>>>>>>
>>>>>> Samantha Scafe
>>>>>> System Administrator
>>>>>> Scott-Welsh Holdings Pty Ltd t/as
>>>>>> Regional Internet Connect
>>>>>> Aussiewide Internet
>>>>>> Cairns Net Services
>>>>>>
>>>>>> EMAIL: samantha at regionalconnect.com.au
>>>>>> WEB: www.regionalconnect.com.au
>>>>>> www.cairns.net.au
>>>>>>
>>>>>> www.aussiewide.com
>>>>>> ADSL : DIALUP : WEB HOSTING : 3G WIRELESS : ADSL2
>>>>>> + : MAIL HOSTING : VOIP : HARDWARE
>>>>>>
>>>>>>
>>>>>>
>>>>>> HEAD OFFICE: 1/82 LAKE STREET, CAIRNS, QLD 4870
>>>>>> POSTAL ADDRESS: PO BOX 1282, CAIRNS, QLD 4870
>>>>>> CAIRNS: 0742220707 | TOWNSVILLE: 0747954504 | BRISBANE:
>>>>>> 0731177610 | GOLDCOAST: 0756683106 | MELBOURNE: 0386859275 |
>>>>>> SYDNEY: 0281979774
>>>>>>
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