[OZAPRS] Fw: 40M APRS frequencies

Sun Dec 3 18:56:25 AEDT 2017

Thanks Gerard.

I had a minor issue with direwolf using the wrong tones earlier, it
appears that
the config line "MODEM 300" will cause 1600 & 1800 tones to be used but
"MODEM 300 # [comment]" causes 1200 & 1800 Hz tones.
After sorting that out I still didn't have any luck on either of the
frequencies, but my noise floor on 40m is S9+20 here today.

But I did manage to decode a couple of frames on 7047.17 a few minutes ago:

2017-12-03 18:10:58 VK4ALN-2 audio level = 52(18/15)   [NONE]   |||
[2.1] VK4ALN-2>VK2RX:(UA res, f=1)

2017-12-03 18:11:04 VK4ALN-2 audio level = 49(18/18)   [NONE]   |||
[2.1] VK4ALN-2>VK2RX:(UA res, f=1)

2017-12-03 18:11:05 VK4ALN-2 audio level = 50(17/16)   [NONE]   |||
[2.1] VK4ALN-2>VK2RX:(I cmd, n(s)=0, n(r)=0, p=0,
pid=0xf0)[KAM-XL-1.0-HM$]<0x0d>93056 BYTES AVAILAB

Increasing tx power didn't help, so will try from a better location when
I get a chance.

On 3/12/2017 4:37 PM, Gerard Hill wrote:
> Hi Josh,
> 
> Checked the IGate log here and you're not in it yet. The path would be
> via ground wave so it would help to not be in an RF hole. NVIS
> propagation is limited at the moment.
> Beacon rate here is once per hour with two packets in the beacon.
> 
> For testing on receive, tune to 7047.17 kHz where there are many beacons
> and a lot of packet activity from several stations in VK2 and one in
> VK4. My IGate operates there too.
> 
> Graeme, the HF Gateway Table on the aprs.net.au
> <http://aprs.net.au/hf/hf-gateways/> site is out of date.
> The most current one is in the archive here
> <https://web.archive.org/web/20161029215543/http://aprs.net.au/hf/hf-gateways/>
> and it has the correct frequencies.
> 
> Cheers,
> Gerard - VK2IO
> 
> On 3 December 2017 at 15:44, Josh <vk2hff at vk2hff.ampr.org
> <mailto:vk2hff at vk2hff.ampr.org>> wrote:
> 
>     QF55ix, S/W Sydney. Roughly 40km SSW from VK2IO's 40m igate.
> 
> 
>     On 3/12/2017 3:31 PM, Glen English VK1XX wrote:
>     > where are you Josh?
>     >
>     >
>     > On 3/12/2017 3:28 PM, Josh wrote:
>     >> I briefly tried 40m APRS with my OT+ a few months ago but wasn't
>     able to
>     >> get through to any igates.
>     >> I'm now running a Direwolf tracker in my car, so I've added a 300bps
>     >> modem on 7048.6 LSB today.
>     >> Currently I'm beaconing every 10 minutes with 50w but so far I
>     haven't
>     >> been igated and I haven't heard any frames either.
>     >> I'm in a bit of a HF black hole here though, so might have to go
>     for a
>     >> drive to do a proper test.
>     >>
>     >> - Josh VK2HFF
>     >>
>     >>
>     >>
>     >> On 3/12/2017 12:24 PM, Scott Evans wrote:
>     >>> That's why I'm on 40m too! 😉 the shift up in frequency was to align
>     >>> with the WIA band plan. As I've mentioned on this many times, I'm
>     >>> beaconing every 10 minutes with a maximum power output of 25w
>     pep into a
>     >>> Hustler 5-BTV
>     >>>
>     >>> That frequency is your dial frequency for using 1600/1800Hz tones,
>     >>> however as I'm using a PK232MBX with DSP filter (after market
>     addition
>     >>> from Timewave) my dial frequency is 510hz higher at 7.049110 LSB to
>     >>> compensate for the 2110/2310Hz tones of the PK232MBX!
>     >>>
>     >>> I'm using APRX with a 40m and a 2m ports, so anything heard on
>     either is
>     >>> forwarded directly to T2TAS.
>     >>>
>     >>>
>     >>> On Sun., 3 Dec. 2017, 11:53 Graeme, <graeme at abrona.com.au
>     <mailto:graeme at abrona.com.au>
>     >>> <mailto:graeme at abrona.com.au <mailto:graeme at abrona.com.au>>> wrote:
>     >>>
>     >>>      Thanks Scott for confirming the frequency listed in the gateway
>     >>>      table.  As my licence is only standard I don’t currently have
>     >>> access
>     >>>      to 30m.
>     >>>            Graeme 2HFG
>     >>>            *From:* Scott Evans
>     >>>      *Sent:* Sunday, December 3, 2017 11:40 AM
>     >>>      *To:* Australian APRS Users
>     >>>      *Subject:* Re: [OZAPRS] Fw: 40M APRS frequencies
>     >>>      
>     >>>      Current frequency for 40m is 7.048600 LSB (1600/1800Hz) as
>     far as
>     >>>      I'm aware there's only VK2IO & myself (VK7HSE) but it's
>     possible
>     >>>      there's more but that's all that I'm aware of...
>     >>>
>     >>>
>     >>>      On Sun., 3 Dec. 2017, 10:42 Graeme, <graeme at abrona.com.au
>     <mailto:graeme at abrona.com.au>> wrote:
>     >>>
>     >>>          Question now answered - I’ve been directed to the HF
>     Gateway
>     >>>          table rather than the obsolete HF APRS frequency table
>     on the
>     >>>          same site.
>     >>>                    *From:* Graeme
>     >>>          *Sent:* Sunday, December 3, 2017 10:03 AM
>     >>>          *To:* OZAPRS at aprs.net.au <mailto:OZAPRS at aprs.net.au>
>     >>>          *Subject:* 40M APRS frequencies
>     >>>                    Is the HF frequency table shown on
>     aprs.net.au <http://aprs.net.au>
>     >>>          <http://aprs.net.au>, particularly for the 40M band but
>     also
>     >>> the
>     >>>          20M band, correct?  7036.00 appears to be outside the
>     current
>     >>>          WIA band plan digital frequencies.
>     >>>                    Thanks,
>     >>>          Graeme 2HFG
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