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ZL3AI > APRDIG 04.08.06 09:16l 249 Lines 8575 Bytes #999 (0) @ WW
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Subj: [APRSSIG] Vol 25 #30, 1/1
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From: ZL3AI@ZL2BAU.#87.NZL.OC
To : APRDIG@WW
Today's Topics:
1. Re: MacTNC by NI5V (Matthew Stennett)
2. Need help testing 30m HF APRS in the Northwest (Ben Jackson)
3. Re: Need help testing 30m HF APRS in the Northwest (James Smith)
4. Re: Need help testing 30m HF APRS in the Northwest (Ben Jackson)
5. Re: Need help testing 30m HF APRS in the Northwest (John Mc Hugh)
6. Re: Need help testing 30m HF APRS in the Northwest (Robert Bruninga)
7. Re: Need help testing 30m HF APRS in the Northwest (John Mc Hugh)
----------------------------------------------------------------------
Message: 1
Date: Sat, 29 Jul 2006 11:40:20 -0700 (PDT)
From: Matthew Stennett <wa4tkg_at_yahoo.com>
Subject: Re: [aprssig] MacTNC by NI5V
Yes; this is true, however as I stated it USED to work, in OS 9, but that
is THEN, and NOW I am running OS X, and it is NOT working....time to take
it to the shooting range I suppose.
>At the risk of belaboring what should be obvious, it ISN'T working
>for YOU or you would not have posted the note. The core of most of
>the objections to the Belkin USB/serial devices is their erratic
>nature, working in some contexts and not in others.
>
>My guidance to anyone who will listen is to use Keyspan USB/serial
>adapters. They seem to have the least list of conflicts ( I have two
>of them I use regularly on OSX and Winders machines) And in general I
>recommend any FTDI chip based USB/serial device.
>
>I have used the Keyspan, the iConcepts, and a Parallax (the Basic
>Stamp people) marketed FTDI based USB/Serial all under OSX from
>Jaguar through the latest and greatest versions of Tiger, with MacTNC
>no problem. You might also want to give Zterm (classic old terminal
>program, there is an X version now) a try and see if its the adapter
>or the program.
>
>---
>cheers... 73 de brian riley, n1bq, underhill
>center, vermont
><http://web.mac.com/brianbr/> Tech Blog
><http://www.wulfden.org/DiskShop.shtml>
>Home of the
>K107 Serial LCD Controller Kit FT817 Power
>Conditioner Kit
>Tab Robot Laser Tag Kit MSP430
>Chips and Connectors
>
>
>
>On Jul 29, 2006, at 11:42 AM, Matthew Stennett
>wrote:
>
>>Is anyone running this software to their TNC?
>>I can not get it to talk to my MFJ-1270C.
>>I believe it is my Belkin USB < > Serial adaptor not
>>allowing the
>>connection, but it used to work just fine under OS 9.
>>Anyone with any comments (useful; I've heard all the
>>BS about Belkin stuff, but I own LOADS of it, and it
>>all works for ME)
>>or suggestions.
>>MacRatt Matt
------------------------------
Message: 2
Date: Sat, 29 Jul 2006 16:53:31 -0700
From: Ben Jackson <ben_at_ben.com>
Subject: [aprssig] Need help testing 30m HF APRS in the Northwest
Hi all,
I'm working on a 30m "pocket tracker". The final is a 74HC240 (similar to
the 38 Special the NorCal QRP club sold as a kit) putting out about 400mW.
In every way I can measure it, I'm producing correct output (for example,
simultaneous AFSK output from the microcontroller can be decoded by AGWPE).
However, either I'm missing something, or I'm just not reaching any GATEs
(or those gates aren't getting to an IGate over VHF with my GATE,WIDE2-2
path). It may be that 400mW is just too weak.
Before I try adding a 5W PA, I was hoping to find someone in the vicinity
of Portland, OR who could listen (or even better decode) my 30m SSB
transmissions.
--
Ben Jackson AD7GD
http://www.ben.com/
------------------------------
Message: 3
Date: Sat, 29 Jul 2006 20:09:41 -0400 (Eastern Standard Time)
From: "James Smith" <k9apr_at_tawg.org>
Subject: Re: [aprssig] Need help testing 30m HF APRS in the Northwest
A non-text attachment was scrubbed...
------------------------------
Message: 4
Date: Sat, 29 Jul 2006 17:17:11 -0700
From: Ben Jackson <ben_at_ben.com>
Subject: Re: [aprssig] Need help testing 30m HF APRS in the Northwest
On Sat, Jul 29, 2006 at 08:09:41PM -0400, James Smith wrote:
>We'll be looking for you on 30m HF. I would change the unproto to Gate
>Wide1-1 no need going anymore then that when your signal passes to VHF. You
>might even have to go Echo,Gate,Wide1-1 depends were your closet gate is.
>W7CCY or something like that is in Washington state.
Yes, that seems to be the closest HF GATE to me. There are a few in
northeast BC, too.
I have tried other paths (wider on the VHF side), but not ECHO. Is ECHO
supposed to be used for normal operation? Are there HF repeaters that
don't actually gate to VHF?
--
Ben Jackson AD7GD
http://www.ben.com/
------------------------------
Message: 5
Date: Sat, 29 Jul 2006 20:49:28 -0400
From: John Mc Hugh <johnk.mchugh_at_att.net>
Subject: Re: [aprssig] Need help testing 30m HF APRS in the Northwest
Ben Jackson wrote:
>Is ECHO
>supposed to be used for normal operation? Are there HF repeaters that
>don't actually gate to VHF?
Ben,
Echo is valid, it will get your signal digi'ed hopefully by a much
stronger station. Use echo,gate,wide or echo,gate,wide1-1.
Are you txing on the correct frequencies?
What tones are you using? the center of the tone freqs should be on
10.1493MHz
John
--
John Mc Hugh, K4AG
Coordinator for Amateur Radio
National Hurricane Center, WX4NHC
Home page:- http://www.wx4nhc.org
------------------------------
Message: 6
Date: Sun, 30 Jul 2006 11:46:24 -0400
From: "Robert Bruninga" <bruninga_at_usna.edu>
Subject: Re: [aprssig] Need help testing 30m HF APRS in the Northwest
>Is ECHO supposed to be used for normal operation?
>>Echo is valid, it will get your signal digi'ed hopefully by
>>a much stronger station. Use echo,gate,wide or
>>echo,gate,wide1-1.
Please, please... no. You can douse a theatre full of people with gasoline
and toss a match inside to light your cigarette too, but its not fair to
everyone else.
ECHO on HF has never been receommeded for digipeating except in the case of
bonifide emergenceis!
Using ECHO:
1) Reduces the channel capacity by a factor of 2 to N making it practically
useless. It is already 1/4th the VHF rate and digipeating on HF is just
crazy.
2) It causes multiple stations to either key up at the same time (QRM and
nothing is heard) or they hold off until each one finishes and they in
turn, each QRM the channel for 10s of seconds.
3) HF works because of multiple distributed GATE receivers. If a GATE
hears a packet, then it either injects it dierectly in to the Internet or
gates it ONCE to VHF, where an IGat e will hear it... There is no need for
it to QRM the HF channel and digipeat it on HF!
4) "ECHO" was made a digipeating alias back in 1993 for only 1 reason!
- To put something in there BESIDES RELAY!
Since back at the beginnning everyone was a RELAY and all software started
by using RELAY, and since digipeating on HF is just plain self-defeating to
the network and in no-way desired,, we had all software force ECHO as the
digipeating ALIAS instead of RELAY on HF. This way, all those newbee's who
simply hooked up to HF without setting the proper GATE,WIDE path did NOT
get digipeated via their RELAY default path and ruin the network.
Yet it was there if someone had a bonifide emeregency and really needed to
get a packet out at the expense of trashing the network for just this one
time emergency. (We should have used "NONE" as this forced repalcement for
RELAY... then there would be no confusion here...)
I say again, it makes NO SENSE to your fellow radio amateurs trying to
share a single 300 baud HF channel to be digipeating VIA ECHO. It was
NEVER intended as a digipeating alias!
But the point is, It makes no sense to DIGIPEAT on HF. Please dont do it.
The recommended path was always VIA GATE,WIDE and now that should be VIA
GATE,WIDE1-1.
That gets it into IGates all over the world, and gives everyone a chance to
hear it direct on HF, and in their local area on VHF.
de Wb4APR, Bob
------------------------------
Message: 7
Date: Sun, 30 Jul 2006 12:18:19 -0400
From: John Mc Hugh <johnk.mchugh_at_att.net>
Subject: Re: [aprssig] Need help testing 30m HF APRS in the Northwest
Robert Bruninga wrote:
>ECHO on HF has never been receommeded for digipeating except
>in the case of bonifide emergenceis!
Bob, in this case with only 400mw output it's not likely it will hit many
ECHO stations. He's just experimenting
John
--
John Mc Hugh, K4AG
Coordinator for Amateur Radio
National Hurricane Center, WX4NHC
Home page:- http://www.wx4nhc.org
------------------------------
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