[OZAPRS] HF APRS
Ian Bennett
ibennett at tpg.com.au
Mon Feb 2 08:21:51 EST 2009
Hi Ray,
Pardon my ignorance but I thought the 30m freq was 10147.6KHz when using
1600/1800 Hz tones.
Answers a few questions though. A few weeks ago I was 50Hz down and was
getting in through you but now I am on 10147.6Khz, I'm only in through VK4UN
and VK5LY.
Ian
VK1IAN
On Mon, 2 Feb 2009 07:45:21 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+ :
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> >>>>>
> >>>>>
> >>>>>
> >>>>> HEAD OFFICE: 1/82 LAKE STREET, CAIRNS, QLD 4870
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> >>>>> CAIRNS: 0742220707 | TOWNSVILLE: 0747954504 | BRISBANE:
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> >>>>>
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