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ZL3AI > APRDIG 19.09.06 22:12l 263 Lines 9082 Bytes #999 (0) @ WW
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From: ZL3AI@ZL2BAU.#87.NZL.OC
To : APRDIG@WW
Message: 11
Date: Mon, 28 Aug 2006 15:22:24 -0500
From: "AE5PL Lists" <HamLists_at_ametx.com>
Subject: RE: [aprssig] Filter port
Is your filter _only_ "filter p/ILX/MKX b/K9KRW*/KB9YQX*" without the
quotes? I am doing this with first.aprs.net which is running the
current javAPRSFilter and it is not displaying stations from all over.
I also used "filter p/ILX/MKX b/K9KRW*/KB9YQX* -b/CW*" with the same
results although the -b/CW* is not needed since you have already
specified that you only want packets from stations starting with ILX,
MKX, K9KRW, and KB9YQX.
I think the biggest issue for you has been that javAPRSFilter was
probably ignoring your t/mkx* before but is now trying to make the best
of it by passing all messages and that it is now trying to make the best
of t/n/ilx* and passing all NWS packets. Maybe Roger was being a bit
too helpful in his code ;-)
73,
Pete Loveall AE5PL
mailto:pete_at_ae5pl.net
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Message: 12
Date: Mon, 28 Aug 2006 17:06:11 -0500
From: "Robbie, wa9inf" <mwrobertson_at_comcast.net>
Subject: Re: [aprssig] Filter port
I am not now getting all the stations from all the world as before which
prompted the thread Pete, and at that time my filter string was "filter
t/n/ilx*/mkx* b/k9krw/kb9yx* -b/cw*" (without the quotes)
With the above, I was getting all the CW stations until I added the
-b/CW*. That stopped the CW stations. I have no idea why I was getting
them unless somehow the t/n was including the CW stations, but I was not
getting an error on the filter string until the other day. I then found
I could use the t/n and t/ILX*/MKX* seperately with no error. Then today
I was getting up to 345 stations where as yesterday with that filter
string, my station count rarely exceeded 80 stations except when the
band opens, none of the the increased stations came from the internet
feed.. It is as if someone changed something without us knowing?
Anyways, I am not now getting the internet feed from the world over with
this string: "filter t/n p/ILX*/MKX* b/K9KRW/KB9YQX*" without the
quotes, :-)
If I understood correctly from my previous discussions, t/n would not
necessarily give me ILX* and MKX* messages and objects?? I will have to
check further on this..
Thanks for the help Pete and Roger, sorry to have drug this out so long,
and hope I've learned something maybe, :-)
Robbie
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Message: 13
Date: Mon, 28 Aug 2006 17:36:29 -0500
From: "AE5PL Lists" <HamLists_at_ametx.com>
Subject: RE: [aprssig] Filter port
>-----Original Message-----
>From: Robbie, wa9inf
>Posted At: Monday, August 28, 2006 5:09 PM
>Subject: Re: [aprssig] Filter port
>
>If I understood correctly from my previous discussions, t/n
>would not necessarily give me ILX* and MKX* messages and
>objects?? I will have to check further on this..
t/n specifies _all_ weather messages and objects. The p/ILX/MKX (or
b/ILX*/MKX*) filter will give you give you all messages and objects
(including weather objects and weather messsages) from _only_ stations
with ILX or MKX as a prefix.
Hope this helps.
73,
Pete Loveall AE5PL
mailto:pete_at_ae5pl.net
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Message: 14
Date: Mon, 28 Aug 2006 21:37:16 -0400
From: tom burkhart <tburkhar_at_gmail.com>
Subject: Re: [aprssig] ISS
It appears that they have turned the digi on the iss back on this afternoon
http://www.findu.com/cgi-bin/ariss/index.cgi
Tom
KI4MDU
Ron Wenig wrote:
>Thanks Tom,
>
>Looks like the last APRS packet was received 8/13. I'll have to figure out
>how to do SSTV when they get it working. That looks like it would be more
>fun.
>
>73, Ron ny3j
>
>
>>-----Original Message-----
>>From: aprssig-bounces_at_lists.tapr.org
>>[mailto:aprssig-bounces_at_lists.tapr.org]On Behalf Of tom burkhart
>>Sent: Saturday, August 26, 2006 9:32 AM
>>To: TAPR APRS Mailing List
>>Subject: Re: [aprssig] ISS
>>
>>Currently the aprs system is not working on the iss, because the are
>>trying to set up sstv using the same frequencies.
>>The easiest way to see if aprs is active on the ISS is to look at the
>>fundu site http://www.findu.com/cgi-bin/ariss/index.cgi
>>There is an article on www.issfanclub.com that mentions the status of
>>the sstv upgrade. That site also has information on the status of packet
>>and voice activities.
>>
>>The sstv upgrade is also mentioned at
>>http://www.arrl.org/news/stories/2006/08/22/2/?nc=1
>>
>>Tom
>>KI4MDU
------------------------------
Message: 15
Date: Mon, 28 Aug 2006 22:39:01 -0400
From: "Ron Wenig" <ny3j_at_comcast.net>
Subject: RE: [aprssig] ISS
Thanks Tom,
I made it. I guess the station is set up for simplex not split. Very easy
to work and a great thrill to work it.
73, Ron ny3j_at_comcast.net
>-----Original Message-----
>From: aprssig-bounces_at_lists.tapr.org
>[mailto:aprssig-bounces_at_lists.tapr.org]On Behalf Of tom burkhart
>Sent: Monday, August 28, 2006 9:37 PM
>To: TAPR APRS Mailing List
>Subject: Re: [aprssig] ISS
>
>It appears that they have turned the digi on the iss back on this
>afternoon
>http://www.findu.com/cgi-bin/ariss/index.cgi
------------------------------
Message: 16
Date: Tue, 29 Aug 2006 11:06:08 -0400
From: "Stephen Brown Jr" <stephen.brown75_at_gmail.com>
Subject: [aprssig] Homebrew transmitter
I got this crazy idea to build a 100% homebrew tracker for car and I am
looking for plans for a xtal controlled transmitter on 144.390 I was
planning on coupling this to an opentracker, has anyone ever attempted or
done this? I know MFJ makes a xtal controlled data radio, but I didn't want
to spend what they are asking on it, and also the ten-tec 2m kits are no
longer in production. I have no need for a receiver as this will be xmitting
only, anyone have any thoughts?
Stephen
N1VLV
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Message: 17
Date: Tue, 29 Aug 2006 10:16:42 -0500
From: Josh Freeman <cpe.jfreeman_at_gmail.com>
Subject: Re: [aprssig] Homebrew transmitter
Wouldn't you need some sort of receiver, if only to be able to detect
when the channel is busy?
Josh KI4ITI
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Message: 18
Date: Tue, 29 Aug 2006 08:23:16 -0700 (PDT)
From: "Curt, WE7U" <archer_at_eskimo.com>
Subject: Re: [aprssig] Homebrew transmitter
On Tue, 29 Aug 2006, Josh Freeman wrote:
>Wouldn't you need some sort of receiver, if only to be able to detect
>when the channel is busy?
This is a tricky one:
Stephen mentioned that he wanted to home-brew a tracker for a car. I'd
think he'd want 10W or more in that case. I'd prefer 20W for a vehicle.
The channel-busy thing has been discussed on this list many times. I
_think_ that the general concensus was that it's ok sometimes to not have a
channel-busy, if it's a low-power tracker, probably 1W or less. I'm sure
some will violently disagree that even the low-powered ones should be
allowed to be transmit-only (witness the hoopla about the PocketTracker).
I think the requirements conflict here. He needs higher power for the car,
so needs channel-busy detect of some sort. If he goes to lower power and a
transmit-only setup, he won't get many posits received by anyone.
--
Curt, WE7U. APRS Client Comparisons: http://www.eskimo.com/~archer
"Lotto: A tax on people who are bad at math." -- unknown
"Windows: Microsoft's tax on computer illiterates." -- WE7U
"The world DOES revolve around me: I picked the coordinate system!"
------------------------------
Message: 19
Date: Tue, 29 Aug 2006 10:30:12 -0500
From: Jason Winningham <jdw_at_eng.uah.edu>
Subject: Re: [aprssig] Homebrew transmitter
On Aug 29, 2006, at 10:06 AM, Stephen Brown Jr wrote:
>I got this crazy idea to build a 100% homebrew tracker for car and I
>am looking for plans for a xtal controlled transmitter on 144.390 I
>was planning on coupling this to an opentracker, has anyone ever
>attempted or done this? I know MFJ makes a xtal controlled data radio,
>but I didn't want to spend what they are asking on it, and also the
>ten-tec 2m kits are no longer in production. I have no need for a
>receiver as this will be xmitting only, anyone have any thoughts?
check the PicoBeacon at www.kd7lmo.net. He uses an AD9954 DDS (direct
digital synthesis) chip to directly generate an RF signal, which is then
amplified to 500mW. You'd basically have to design the transmitter from
scratch, using kd7lmo's design as a starting point. (You said 100%
homebrew. :)
Ramsey occasionally has an SMT xtal transmitter listed, the "Rocket
Tracker". I think it's $75 assembled, about $50 kit, and has around 25mW
or so output power. The crystal will put the unit at or near 146.565 for
T-hunt purposes, so you'd have to get crystals made for 144.390 to get it
on the APRS freq.
-Jason
kg4wsv
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