[OZAPRS] QRG drift HF APRS
Mark Austin
vk2jma at gmail.com
Sat Jul 2 08:53:06 EST 2011
G'Day Ray,
Have a look at
http://lists.aprs.net.au/pipermail/ozaprs/2010-May/009291.html
the +78 means VK3MY needs to come up 78Hz to zero beat with VK6UZ-4, not
that he is 78Hz high
Regards,
Mark
On Sat, Jul 2, 2011 at 8:35 AM, Ray Wells <vk2tv at exemail.com.au> wrote:
> Mike,
>
> A query re the figures shown at http://aprs.fi/?c=raw&call=**vk6uz-4<http://aprs.fi/?c=raw&call=vk6uz-4>
>
> VK3MY-4 is shown with a figure of +78 which suggests he is higher in
> frequency than a station shown as +50, for example.
>
> How can this be so when VK3MY-4 is clearly displayed in a waterfall display
> as being lower in frequency than almost every other station and other
> contributors to this forum have made the same observation?
>
> I know the figures are relative but that relativity suggests that, given
> the number of stations shown as +50, those stations are on the correct
> frequency and VK6UZ-4 is not.
>
> I think we need to decide on a reference (net) station that is on frequency
> and from that known reference, every station would be able to use a
> waterfall display to net to the reference station. Those simple steps would
> eliminate most of the frequency error related problems. In fact, if one
> station was the standard, every other station could, by using a waterfall
> display, become a pseudo sub-standard - a bit like calibrating meters.
>
> How many applications are out there with a waterfall display?
>
> For Windoze I know of Digipan and WinMX and,
> for Linux there is fldigi
>
> There may be more applications for both operating systems but since I
> haven't used Windoze for most things for some years I wouldn't know and in
> Linux I've found something that does the job so why look any further?
>
> Ray vk2tv
>
>
> On 29/06/11 21:37, Mike Zwingl oe3mzc wrote:
>
>> see how all stations on 10Mhz are drifting offset in QRG:
>> http://aprs.fi/?c=raw&call=**vk6uz-4 <http://aprs.fi/?c=raw&call=vk6uz-4><
>> http://aprs.fi/?c=raw&call=**vk6uz-4 <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
>> <http://aprs.fi/?c=raw&limit=&**call=VK6UZ-4<http://aprs.fi/?c=raw&limit=&call=VK6UZ-4>
>> >*>APU25N,TCPIP*,**qAC,T2AUST:=3211.17S/11604.**17E&HF-IGATE
>>
>> 10147.6USB Perth
>> 2011-06-29 11:29:01 UTC: *VK6UZ-4
>> <http://aprs.fi/?c=raw&limit=&**call=VK6UZ-4<http://aprs.fi/?c=raw&limit=&call=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
>> <http://aprs.fi/?c=raw&limit=&**call=VK6UZ-4<http://aprs.fi/?c=raw&limit=&call=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
>> <http://aprs.fi/?c=raw&limit=&**call=VK6UZ-4<http://aprs.fi/?c=raw&limit=&call=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
>> <http://aprs.fi/?c=raw&limit=&**call=VK6UZ-4<http://aprs.fi/?c=raw&limit=&call=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
>> <http://aprs.fi/?c=raw&limit=&**call=VK6UZ-4<http://aprs.fi/?c=raw&limit=&call=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
>> <http://aprs.fi/?c=raw&limit=&**call=VK6UZ-4<http://aprs.fi/?c=raw&limit=&call=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
>> <http://aprs.fi/?c=raw&limit=&**call=VK6UZ-4<http://aprs.fi/?c=raw&limit=&call=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
>> <http://aprs.fi/?c=raw&limit=&**call=VK6UZ-4<http://aprs.fi/?c=raw&limit=&call=VK6UZ-4>
>> >*>APRS,TCPIP*,**qAC,T2AUST:>dF
>>
>> (Hz): VK4UN-15 +43, VK8LM +50, VK5LY-6 +50, VK3BDG-9 -18
>>
>> ----- Original Message -----
>> *From:* Michael Wain <mailto:vk3hau at bigpond.net.au>
>> *To:* Australian APRS Users <mailto:ozaprs at aprs.net.au>
>> *Sent:* Thursday, April 28, 2011 2:01 AM
>>
>> *Subject:* Re: [OZAPRS] HF APRS with an FT 857D and Kantronics KP3
>>
>> G'day Russ,
>>
>> Thanks for the reply, I've been meaning to set up a buy / sell page
>> on the web site, just hav'nt had time, but any way I'll asks arould
>> for you.
>>
>> P.S. I also have a web site at vk3hau.com <http://vk3hau.com> but
>>
>> the info is a bit old now.
>>
>>
>> Yours sincerely
>>
>> Michael Wain - VK3HAU
>>
>> EGARC Inc. Publicity Officer. Ph: 613 - 51411650
>>
>> On 28/04/2011, at 0:06, "Russell" <ashdown at hunterlink.net.au
>> <mailto:ashdown at hunterlink.**net.au <ashdown at hunterlink.net.au>>>
>> wrote:
>>
>> Hi Michael,
>>> Had a look at your club site.....pretty good.
>>> If you or the club has a KP3 spare I would like to buy it and put
>>> it in service as a digi in our area.
>>> Russ
>>> VK2VK
>>> /-------Original Message-------/
>>> /*From:*/ Michael Wain <mailto:vk3hau at bigpond.net.au>
>>> /*Date:*/ 27/04/2011 23:32:57
>>> /*To:*/ Australian APRS Users <mailto:ozaprs at aprs.net.au>
>>> /*Subject:*/ Re: [OZAPRS] HF APRS with an FT 857D and Kantronics KP3
>>>
>>> The only work out my KPC-3 gets nowa days is beaconing my weather
>>> station from the ui-view32 software, cost me nearly $300 back in
>>> the day of packet 16 years ago, and it got a lot of work, but now,
>>> just seats in the corner of the shack tx every 30 mins, I have
>>> always wanted to setup a Igate on hf ( 40mtrs ), oh well, one day
>>> maybe if the wife is not looking at the bank account I mite look
>>> at the KAM.
>>> Yours sincerely
>>>
>>>
>>> Michael Wain - VK3HAU
>>>
>>>
>>> EGARC Inc. Publicity Officer.
>>>
>>> Ph : 613 - 51411650
>>> Email - <mailto:vk3hau at vk3egc.org>vk3h**au at vk3egc.org<vk3hau at vk3egc.org>
>>> <mailto:vk3hau at vk3egc.org>
>>> Web - http://www.vk3egc.org <http://www.vk3egc.org/>
>>>
>>>
>>> <macbean tartan - sheld1.jpg>< a>
>>>
>>>
>>> ----- Original Message -----
>>> *From:* Russell <mailto:ashdown at hunterlink.**net.au<ashdown at hunterlink.net.au>
>>> >
>>> *To:* Australian APRS Users <mailto:ozaprs at aprs.net.au>
>>> *Sent:* Wednesday, April 27, 2011 9:46 PM
>>>
>>> *Subject:* Re: [OZAPRS] HF APRS with an FT 857D and Kantronics KP3
>>>
>>> Hi Shaun,
>>> I've been running a Kantronics KP3 ($80 on VKHAM) with a IC2820 at
>>> my shack for about three month now and it works a treat, VK2VK-5. (2M)
>>> Software is Ui-View and running KISS on the KP3
>>> I have just landed a *Kantronics All mode "KAM"* (runs HF and VHF)
>>> from UK for $120 AU.
>>> Hoping to be on HF within the week if work allows. I also have a
>>> FT-857D that I hope to run my HF Igate on.
>>> If I can be of any assistance give me a yell.
>>> For your info.
>>> Regards
>>> Russ
>>> VK2VK-5 Central Coast Igate
>>> /-------Original Message-------/
>>> /*From:*/ Shaun <mailto:shaunbaby at optusnet.**com.au<shaunbaby at optusnet.com.au>
>>> >
>>> /*Date:*/ 27/04/2011 09:30:32
>>> /*To:*/ Australian APRS Users <mailto:ozaprs at aprs.net.au>
>>> /*Subject:*/ Re: [OZAPRS] HF APRS with an FT 857D and Kantronics KP3
>>>
>>> OK, I set the TNC back to 2m 1200 settings and all working fine,
>>> so it would
>>> appear the 200 vs 800hz was the issue. Silly that Kantronics
>>> didn't address
>>> the issue rather than just telling you it won't work.
>>> I set my symbol to a bike as I had never really worked out how to
>>> do that part
>>> or the set up although for today I think I should change it to a
>>> boat with
>>> this rain!
>>> And for the info of the APRS.net.au <http://APRS.net.au> people
>>>
>>> this link is broken in the
>>> configurations page:
>>> <http://web.ew.usna.edu/~**bruninga/aprs/symbolsX.txt<http://web.ew.usna.edu/%7Ebruninga/aprs/symbolsX.txt>
>>> >htt**p://web.ew.usna.edu/~bruninga/**aprs/symbolsX.txt<http://web.ew.usna.edu/%7Ebruninga/aprs/symbolsX.txt>
>>>
>>> Once again, thanks for all your help. Even though it didn't work I
>>> now have a
>>> better understanding of this part of our hobby.
>>> 73
>>> Shaun VK2XPP-9
>>> On Wed, 27 Apr 2011 05:43:28 Shaun wrote:
>>> > Thanks Terry,
>>> >
>>> > This explains a lot, and although not the outcome I was looking
>>> for, your
>>> > help has saved me a lot of time.
>>> >
>>> > Anyone got a cheep 300 baud 200 hz modem going?
>>> >
>>> > Thanks to all that contributed.
>>> >
>>> > 73
>>> >
>>> > Shaun VK2XPP-9 for now.
>>> >
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>>>
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>>
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>>
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>
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