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ZL3AI > APRDIG 04.04.03 10:56l 306 Lines 11447 Bytes #999 (0) @ WW
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From: ZL3AI@ZL3VML.#80.NZL.OC
To : APRDIG@WW
Subject: [aprssig] Re: XASTIR help needed
>Ok now i have maps, used .xpm format. next trick how to convert UIVIEW
>to XASTIR cords
>
>UIVIEW
>
>152.40.10E 27.18.15S
>153.20.65E 27.42.50S
UI-View coordinates are in DEGREE,MINUTES.minutes and are displayed as
above.....don't ask me why.
Latitude - The format is dd.mm.nn<NS>. "dd" is two digits for degrees. "mm"
is two digits for minutes. "nn" is two digits for decimal minutes. NOTE -
decimal minutes, not seconds. "<NS" is either "N" for North or "S for South.
Example - 52.58.23N
Longitude - The format is ddd.mm.nn<EW>. "ddd" is three digits for degrees.
"mm" is two digits for minutes. "nn" is two digits for decimal minutes.
NOTE - decimal minutes, not seconds. "<EW>" is either "E" for East or "W"
for West. Example - 000.02.77W
Jim, WA6OFT
----------------------------------------------------------------------
Subject: Re: XASTIR help needed
From: Neil Johnson <njohnsn@njohnsn.com>
Date: Sun, 30 Mar 2003 09:32:55 -0600
X-Message-Number: 10
On Saturday 29 March 2003 10:22 pm, KC7ZRU - Tate wrote:
>Andrew,
>
>Back when the APRS-IS was supervised and maintained by a single person
>(Thanks Steve!!) a rudimentary 'authentication' system was setup - above
>and beyone whatever registration schemes various software authors
>implimented.
>
>Idea was, that in order to connect to any of the then existing servers,
>a'validation key' was required. Intent was to allow only licensed or
>otherwise authorized individuals access to the APRS-IS. I think.
Not exactly,
The use of the verification code was an attempt to prevent data sent to the
APRS IS from clients run by unlicensed (in the Amateur Radio sense, not
software sense) from being transmitted on to RF.
When you connected to an APRS-IS server, the verification code was sent to
the server. If valid, packets you sent were routed using your call sign in
the path. If no verification code (or an incorrect code was sent), your
packets where routed with ("TCPIP" I think) in the path to let other
servers and I-Gates know not to transmit the traffic on RF.
Verification codes worked great when all APRS-IS client software was
closed-source and required registration anyway. The author(s) of a
particular client took care of generating the verification code when they
received your software registration (if you were able to prove to them you
were a licensed HAM).
However, with the advent of Open-Source clients, this be came an issue. For
awhile, I think Steve tried to manage generating verification codes on his
own, but I can quickly see how that would quickly become a major hassle. He
quickly realized he didn't have the time to do it. He tried to find
volunteers to take his place, but finding none he gave up and released the
algorithm for generating the verification codes.
There have been several suggestions for a new verification system
(including my self), but as is always the case, suggestions are useless
accompanied by a working implementation and most authors of APRS clients
are to busy with (and rightly, more interested in) other feature requests
(Not to mention having a life, It is A HOBBY after all).
Anybody could (and can) connect to the APRS-IS (it's a great way to show
off the capability of APRS).
--
Neil Johnson
http://www.njohnsn.com
PGP key available on request.
----------------------------------------------------------------------
Subject: Re: XASTIR help needed
From: Bob Bruninga <bruninga@usna.edu>
Date: Sun, 30 Mar 2003 12:10:24 -0500 (EST)
X-Message-Number: 11
On Sun, 30 Mar 2003, Spider wrote:
>UI-View coordinates are in DEGREE,MINUTES.minutes and are displayed as
>above.....don't ask me why.
I can answer that:
Because that is the APRS standard. It is also the NMEA standard, so that
is why APRS chose it. It also provides more precision than D:M:S for the
same number of digits. Another reason.
All APRS programs, (except WinAPRS, I think) adhered to that standard.
Bob
----------------------------------------------------------------------
Subject: Re: XASTIR help needed
From: "Brent Hildebrand" <bhildebrand@earthlink.net>
Date: Sun, 30 Mar 2003 09:21:37 -0800
X-Message-Number: 12
>On Sun, 30 Mar 2003, Spider wrote:
>
>>UI-View coordinates are in DEGREE,MINUTES.minutes and are displayed as
>>above.....don't ask me why.
>
>I can answer that:
>
>Because that is the APRS standard. It is also the NMEA standard, so that
>is why APRS chose it. It also provides more precision than D:M:S for the
>same number of digits. Another reason.
>
>All APRS programs, (except WinAPRS, I think) adhered to that standard.
>
>Bob
You are speaking about Degrees, Decimal Minutes, that's fine. But
displaying the data as "D.M.m" is strange and misleading. To quote
more of the message you are referring to:
Brent
----------------------------------------------------------------------
Subject: Re: XASTIR help needed
From: "Spider" <spider@rivcom.net>
Date: Sun, 30 Mar 2003 10:26:50 -0700
X-Message-Number: 13
----- Original Message -----
From: "Bob Bruninga" <bruninga@usna.edu>
To: "Spider" <spider@rivcom.net>
Cc: "TAPR APRS Special Interest Group" <aprssig@lists.tapr.org>
Sent: Sunday, March 30, 2003 10:10 AM
Subject: Re: [aprssig] Re: XASTIR help needed
>On Sun, 30 Mar 2003, Spider wrote:
>
>>UI-View coordinates are in DEGREE,MINUTES.minutes and are displayed as
>>above.....don't ask me why.
>
>I can answer that:
>
>Because that is the APRS standard. It is also the NMEA standard, so that
>is why APRS chose it. It also provides more precision than D:M:S for the
>same number of digits. Another reason.
You did not understand where I was coming from. Map tooling, BTW, for
Lat/Long plotting
use DEG,MIN.min (for the most part) and APRS uses it too.
Roger choose to "DISPLAY" it in a way that could be confusing for those that
have not read his excellent help files.
For example a latitude the way we might normally see it in APRS, 3624.36,
is displayed as 36.24.36 and it has caused confusion in the past with new
users.
This is what I was trying to get at and musta not explained myself
properly....which is pretty normal!
Jim
----------------------------------------------------------------------
Subject: Re: XASTIR help needed
From: "Cap Pennell" <cap@cruzio.com>
Date: Sun, 30 Mar 2003 12:23:18 -0800
X-Message-Number: 14
>-----Original Message-----
>From: bounce-aprssig-32319@lists.tapr.org On Behalf Of Neil Johnson
>Sent: Sunday, March 30, 2003 07:33 AM
>To: TAPR APRS Special Interest Group
<snip>
>
>When you connected to an APRS-IS server, the verification code was sent to
the server. If valid, packets you sent were routed using your call sign in
the path. If no verification code (or an incorrect code was sent), your
packets where routed with ("TCPIP" I think) in the path to let other servers
and I-Gates know not to transmit the traffic on RF.
<snip>
TCPIP in the packet showed verified ham privileges, TCPXX showed
non-verified (no inet to rf privileges).
Still does.
73, Cap KE6AFE
----------------------------------------------------------------------
Subject: Need microphone extension cable for D700A
From: Richard Parry <rich@hercomputer.net>
Date: Sun, 30 Mar 2003 20:07:33 -0800
X-Message-Number: 15
Apologies in advance for this FAQ. I need a microphone extension cable for
the D700A. I don't mind buying the cable, I just don't want to buy the
entire Kenwood PG-4X kit with cables I don't need.
Rich, W9IF
----------------------------------------------------------------------
Subject: Re: Need microphone extension cable for D700A
From: radio_q@juno.com
Date: Sun, 30 Mar 2003 21:25:07 -0700
X-Message-Number: 16
On Sun, 30 Mar 2003 20:07:33 -0800 Richard Parry <rich@hercomputer.net>
writes:
>I need a microphone extension cable for the D700A.
Hi Rich
I use a cat 5 cable like I use on the computer. Works great.
Get a female/female coupler wired pin for pin and you are
in business. I use them on my Icoms and my D700 and
no problems with RF or other problems.
C U
Jim
----------------------------------------------------------------------
Subject: Re: Need microphone extension cable for D700A
From: WA8LMF2@aol.com
Date: Sun, 30 Mar 2003 23:40:12 EST
X-Message-Number: 17
In a message dated 3/30/2003 8:11:14 PM Pacific Standard Time,
rich@hercomputer.net writes:
>Apologies in advance for this FAQ. I need a microphone extension cable for
>the D700A. I don't mind buying the cable, I just don't want to buy the
>entire Kenwood PG-4X kit with cables I don't need.
>
>Rich, W9IF
Get a couple of surface-mount CAT5 LAN jacks. Connect the punch-down or
screw terminals of the two together with a length of shielded 8-conductor
cable. Plug the mic into one jack. Connect the other RJ-45 jack to the
radio's mic jack with the shortest (Probably 12") LAN patch cord you can get.
Or make a REALLY short jumper with a crimp tool, a couple of plugs and an
inch or so of CAT5 LAN cable. ( The intent is to have as little unshielded
cable in the mic line as possbile ).
-- OR --
Get a CAT5 LAN patchcord of the length you want as an extension (probably
3"-10'. Cut the plug off one end (or make two assys by cutting a longer CAT5
cable in the middle). Strip the PVC jacket but not the shield braid off an
equal length of RG-8 or RG-11 coax. Remove the shield braid by sliding it
off one end of the cable (you want to keep it intact as a tube). Slip it
over the non-connector end of the CAT5 cable to make a shielded cable assy.
Get a single CAT5 surface mount LAN jack and punch down the wires from the
free end of the cable to its terminals. Now you have a male-to-female
"extension cord" -- plug the mic into the LAN jack and the other end of the
cable into the radio. Ground the shield braid to the radio's chassis.
Or if you are a true masochist, try crimping a shielded 8-cond cable directly
into an RJ45 plug. It can be done but it's not for the faint-of-heart!
I'[ve done this several times to make "extension cords" for radios with the
maddening RJ-45 mic jacks ( I --FAR-- prefer the round 8-pin plugs that
accomodate and clamp round shielded cable, and that are solderable).
Another work around is to get the Kenwood MJ-88 adapter cable that has an
RJ-45 plug on one end and a traditional round mic jack molded into the other
end of a 10" pigtail. The round end of this assembly has the same pinout as
the panel jacks of all Kenwood radios that use the round plug. Rewire the
mic to use a classic 8-pin plug.
I use this approach to insert a TinyTrak in the mic line of my TM-742
6M/2M/UHF tribander. I have an 8-pin jack on one end of the TT for the mic,
and a 6" pigtail with a 8-pin plug coming other end. It plugs in as-is to
classic Kenwoods, and plugs into the newer ones via an MJ-88.
An annotated diagram of the MJ-88 which also shows Kenwood's equivalent
pinout for the RJ and round jacks is on my web site at:
http://members.aol.com/wa8lmf/miscinfo
Follow the link and look for the file KenwoodMJ-88.gif
Stephen H. Smith wa8lmf @ aol.com
Home Page: http://wa8lmf.com
Ham Radio/Mobile SSTV page: http://members.aol.com/wa8lmf/ham
APRS Stuff
http://members.aol.com/wa8lmf/aprs
---
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