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ZL3AI > APRDIG 10.03.03 16:37l 156 Lines 5512 Bytes #999 (0) @ WW
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Subj: TAPR Digest, Mar 05, 5/5
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From: ZL3AI@ZL3VML.#80.NZL.OC
To : APRDIG@WW
Subject: ADMIN: Re: Kenwood redefines Warranty
From: Stan Horzepa <stanzepa@earthlink.net>
Date: Wed, 05 Mar 2003 19:16:45 -0500
X-Message-Number: 28
I think we have worn out the server's patience with this topic, which has
veered off-topic. So let's drop it and discuss something on-topic.
Thank-you,
Stan, WA1LOU, APRSSIG administrator
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Subject: Re: New TMD-700 Firmware
From: "Neil Oosten" <va3plt@rac.ca>
Date: Wed, 5 Mar 2003 18:30:38
X-Message-Number: 29
On 03/04/03, "Greg Noneman <greg@clubnet.net>" wrote:
>Does anyone know if the new firmware for the TMD-700 allows menu
>selection of the TXDelay (in the APRS mode)? I believe TXD is only
I'm going to go one further: Does anyone have any information at all on
anything this new firmware does differently? I have been unsuccessful in
finding any information on it anywhere, other than that it correctly reads
data from some newer Garmin GPS units.
I have a newer Garmin GPS (the eMap), but since I have been unsuccessful
in finding out anything further, I have no idea whether the upgrade is
of any real use to me or not.
Does anyone know anything more about this? What exactly are the
functions that have been changed? I am under the impression that it is
currently out in the field. Perhaps I am wrong?
Thanks,
Neil Oosten
VA3PLT (near Toronto)
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Subject: Re: New TMD-700 Firmware
From: "Mike Yetsko" <myetsko@insydesw.com>
Date: Wed, 5 Mar 2003 19:32:06 -0500
X-Message-Number: 30
I don't know if this is speculation or not, but someone posted a while back
that the old firmware parsed the NEMA strings by 'position'. The new
firmware parses the NEMA strings by content, looking for the commas.
That means the new firmware SHOULD be able to handle both any size date
between the commas.
Mike
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Subject: RE: Linux soundcard modem performance and refernces
From: KC7ZRU - Tate <kc7zru@arrl.net>
Date: Wed, 05 Mar 2003 18:50:30 -0700
X-Message-Number: 31
Dale Huguley wrote:
>On Wed, 2003-03-05 at 17:26, J. Lance Cotton wrote:
>
>>This sounds like an excellent idea!
>>
>>The EMWIN transmission from the GOES satellites is 9600 bps using FSK
>>modulation. I haven't found the specs for the VHF/UHF retransmission of the
>>data, but I imagine it's probably the same. There are also some feeds at
1200 >>bps. The current version of usermode soundmodem (0.7) has a modem for
FSK >>modulated data. I'd try it out this evening if I had a local
retransmission of
>>the EMWIN stream, but all we have here is EMWIN as a subcarrier of a local FM
>>broadcast station, and I don't have a subcarrier demodulator.
>>
>>Maybe this would be best passed on to a more technically appropriate group
>>like linux-hams for now. I will ask on linux-hams and summarize on APRSSIG if
>>this is possible.
>>
>>I am not aware of any MS Windows-based soundcard modems for EMWIN. They all
>>seem to want to sell hardware and windows software for displaying the rx'd
>>data stream.
>>
>>-Lance Cotton
>
>
>Lance & the Sig-
>The problem with EMWIN demodulation is that it is not in packets that a
>regular tnc (or soundmodem) can use.
....
>73 de kg5qd Dale
Back when I lived in Laramie, I often recieved the VHF 1k2 EMWIN data
stream from the transmitter in the Laramie range. Gear was an IC-2000H
and a KPC3+ in 'modem' mode. As Dale alludes to, in 'modem' mode, the
KPC3+ dosen't do any packet assembly/disassembley and all it's AX.25
'smarts' are effectively turned off. Just takes the stream off the air
and converts it directly to a serial stream on the RS-232 port. What
ever's listening to the RS-232 has to deal with it.
Software I used was the the old "Weatherguys" byte blaster stuff - I
think. I don't remember the full name of it. Freebie package - but I
don't think it's availalbe anymore. Anyone know what happened to it all?
73
--
"The Dungeon" online at http://go.to/kc7zru
Casper, WY | CARC Repeater
DN62tt | 146.940-
http://www.trib.com/~carc
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Subject: aprs with mfj 1270c
From: "Bob B" <n1uan@qsl.net>
Date: Wed, 5 Mar 2003 20:25:27
X-Message-Number: 32
Hi
Sorry for the last message hit the send before text i have an mfj 1270c tnc
and was wondering if there is an special things i need to do with that tnc
to make it work on aprs thanks for any info
Bob N1UAN
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Subject: Re: Linux soundcard modem performance and references
From: Rich Osman <Rich@osman.com>
Date: Wed, 05 Mar 2003 22:30:22 -0600
X-Message-Number: 33
Nothing the EMWIN strean prevents it from being demodded by a soundcard,
even the move to 9600 and eventually to 38400 will be able to be handled
by a soundcard, though it will be more challenging. The trick is to find
a software package you can feed the bits to in some manner other than
the serial port handshaking lines (they all bit-bang a USART.)
--
mailto:Rich@Osman.com http://www.rich.osman.com
Rich Osman; POB 93167; Southlake, TX 76092 (Near DFW Airport) ARS: N1OZ
If you receive something that says "Send this to everyone you know,"
PLEASE pretend you don't know me.
---
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