[OZAPRS] HF frequency drift reports ...?

Thu Jun 30 22:12:41 EST 2011

Have been to Melbourne 2 weeks ago, but am living nr Vienna Austria now-
So no Kangurus here-hi

-----Original Message-----
From: ozaprs-bounces at aprs.net.au [mailto:ozaprs-bounces at aprs.net.au] On
Behalf Of VK4UN
Sent: Donnerstag, 30. Juni 2011 14:03
To: Australian APRS Users
Subject: Re: [OZAPRS] HF frequency drift reports ...?

All good Mike wasn't sure you know it wasn't showing up in the Database, So
you didn't say where are you located, Are you still in Aus??

----- Original Message ----- 
From: "OE3MZC Mike" <oe3mzc at oevsv.at>
To: "'Australian APRS Users'" <ozaprs at aprs.net.au>
Sent: Thursday, June 30, 2011 9:52 PM
Subject: Re: [OZAPRS] HF frequency drift reports ...?

> David,
> This has been my guest license for two years, while travelling from east 
> to
> west coast and north to south OZ,
> but I let it expire, since now CEPT agreement is in place.
>
>
> -----Original Message-----
> From: ozaprs-bounces at aprs.net.au [mailto:ozaprs-bounces at aprs.net.au] On
> Behalf Of VK4UN
> Sent: Donnerstag, 30. Juni 2011 12:53
> To: Australian APRS Users
> Subject: Re: [OZAPRS] HF frequency drift reports ...?
>
> Hi Mike, I have a curious question the call sign VK3FPF doesn't come up on
> the ACMA Database, was trying to look up where you are located, any ideas
> why??
>
> 73's
>
> David   VK4UN
>
> ----- Original Message -----
> From: "OE3MZC Mike" <oe3mzc at oevsv.at>
> To: <vk2io at amsat.org>; "'Australian APRS Users'" <ozaprs at aprs.net.au>
> Sent: Thursday, June 30, 2011 5:01 PM
> Subject: Re: [OZAPRS] HF frequency drift reports ...?
>
>
>> An entry in the list will always represent the last packet heard.
>> There is also a maximum number of entries to this list (32 I guess)...
>> So it can be some days old of course if not much traffic and only some
>> stations heard.
>> Still I think it is helpful to compare your own frequency compared to
>> others.
>> It is not meant to measure in absolute terms.
>> (Which means: VK6UZ-4 is also offset a bit-- but his DSP-TNC will
>> successfully decode plus/minus 400Hz from center QRG)
>> 73 de Mike
>> VK3FPF/OE3MZC
>>
>>
>> -----Original Message-----
>> From: ozaprs-bounces at aprs.net.au [mailto:ozaprs-bounces at aprs.net.au] On
>> Behalf Of Gerard Hill
>> Sent: Donnerstag, 30. Juni 2011 06:02
>> To: Australian APRS Users
>> Subject: Re: [OZAPRS] HF frequency drift reports ...?
>>
>> Hi Terry,
>>
>> I would not be too concerned. Frequency reports in the list do not seem 
>> to
>> expire, so they'll stay there until reset. I think the list was reset or
>> is
>> not being transmitted at the moment because the beacon has stopped.
>>
>> Sending the report is a good idea - thanks VK6UZ! Its an automated system
>> though so you need to do your own verification. For example, I am sure
>> that
>> VK2TV-4 is not 143 Hz low. Other entries in the list are, as far as I can
>> tell, reasonably accurate with a slight tendency to report too low a
>> frequency.
>>
>> Oh and Dave, I miss VNG too. Used to use 7.5 MHz reference a lot.
>>
>> Cheers ... Gerard, VK2IO
>>
>> On 30/06/2011 1:23 PM, Terry Neumann wrote:
>>>
>>> It doesn't take a lot to confuse me these days. OK I'll admit it. I am
>>> confused by the list of stations Mike has copied below.
>>>
>>> I've checked for myself and that's more or less what the site is
>>> delivering in real time at this moment.
>>>
>>> My station is one of those listed with today's date. It hasn't been on
>>> HF APRS since I returned from our Flinders Ranges trip over a couple
>>> of weeks ago:
>>>
>>> http://aprs.fi/?call=vk5atn-15&mt=m&z=11&timerange=86400
>>> <http://aprs.fi/?call=vk5atn-15&mt=m&z=11&timerange=86400> gives the
>>> true picture. It's in the shed with the HF rig off and the 20 metre
>>> whip on the bar. (I just checked)
>>>
>>> So why is it appearing in the lists for today? And all of those going
>>> back over the past day or so?
>>>
>>> Simple answers only please - type slowly .......
>>>
>>> Puzzled 73
>>> Terry
>>>
>>>
>>> Date: Wed, 29 Jun 2011 13:37:07 +0200
>>>> From: "Mike Zwingl oe3mzc"<oe3mzc at oevsv.at>
>>>> Subject: [OZAPRS] QRG drift  HF APRS
>>>> To: "Australian APRS Users"<ozaprs at aprs.net.au>
>>>> Message-ID:<00ed01cc3650$e08f6800$cda8a8c0 at WORKSTATION>
>>>> Content-Type: text/plain; charset="iso-8859-1"
>>>>
>>>> see how all stations on 10Mhz are drifting offset in QRG:
>>>> http://aprs.fi/?c=raw&call=vk6uz-4
>>>> It is not the absolute but the relative value to each other that makes
>> the problem in decoding hf-aprs sigs.
>>>> (values after callsigns is given in Hz)
>>>>
>>>> 2011-06-29 11:24:57 UTC:
>>>> VK6UZ-4>APU25N,TCPIP*,qAC,T2AUST:=3211.17S/11604.17E&HF-IGATE
>>>> 10147.6USB Perth
>>>> 2011-06-29 11:29:01 UTC: VK6UZ-4>APRS,TCPIP*,qAC,T2AUST:>dF (Hz):
>>>> WIDE1 +100, VK2GKA-15 +50, VK7BW-15 +50, VK8ZAB-4 +25
>>>> 2011-06-29 11:29:02 UTC: VK6UZ-4>APRS,TCPIP*,qAC,T2AUST:>dF (Hz):
>>>> VK4UN-4 +62, VK5ATN-15 +65, VK5LY-15 +43, VK4KWI-15 +75
>>>> 2011-06-29 11:29:02 UTC: VK6UZ-4>APRS,TCPIP*,qAC,T2AUST:>dF (Hz):
>>>> VK2AJ-15 +50, KF7EU-6 +25, ZS6SS-3 +62, VK2TV-4 +143
>>>> 2011-06-29 11:29:02 UTC: VK6UZ-4>APRS,TCPIP*,qAC,T2AUST:>dF (Hz):
>>>> VK3DHI-15 +68, VP8DEU +43, VK2DQC-15 +81, VK4DMI-4 +96
>>>> 2011-06-29 11:29:02 UTC: VK6UZ-4>APRS,TCPIP*,qAC,T2AUST:>dF (Hz):
>>>> VK4HW-15 +46, VK4VP-15 +25, DL8RCB-3 +100, IW2GOB-10 +100
>>>> 2011-06-29 11:29:02 UTC: VK6UZ-4>APRS,TCPIP*,qAC,T2AUST:>dF (Hz):
>>>> VK4KMR-15 +46, F5LDS-4 +112, VK2SX-15 +50, LA4FPA-15 +87
>>>> 2011-06-29 11:29:02 UTC: VK6UZ-4>APRS,TCPIP*,qAC,T2AUST:>dF (Hz):
>>>> VK7DIK-4 +40, VK3MY-4 +65, VK3BZQ-9 +37, VK5LY-4 +43
>>>> 2011-06-29 11:29:02 UTC: VK6UZ-4>APRS,TCPIP*,qAC,T2AUST:>dF (Hz):
>>>> VK4UN-15 +43, VK8LM +50, VK5LY-6 +50, VK3BDG-9 -18
>>>>
>>>
>>>
>>>
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