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IK3JLS > SSTV 01.05.99 22:52l 131 Lines 3946 Bytes #999 (0) @ WW
BID : 65198_IW3FFU
Read: GUEST
Subj: HELP:JVFAX AND SOUNDBLUSTER
Path: DB0AAB<DB0KFB<DB0SIP<OE9XPI<HB9EAS<HB9OS<HB9H<HB9OK<IW2FPO<IW5BFZ<
IK5CKL<IN3TTI<IW3FPP<IW3GRX<I3KUH<IW3GS<IW3FFU
Sent: 990501/1334Z @:IW3FFU.IVEN.ITA.EU #:65198 [MONSELICE] $:65198_IW3FFU
From: IK3JLS@IW3FFU.IVEN.ITA.EU
To : SSTV@WW
CIAO,
i'm Nik from Padova and i have a problem with jvfax and soundcard:
i'm not able to find the switchs or the exact configuration to run
the jvfax with the driver tsr SBTSR of mr.4Z5BS.
Somebody is so kind to help me ???
Here attacched you can find the description of the Driver tsr.
CIAO
SBTSR v0.20 beta - JVFAX with Sound Blaster
-------------------------------------------
Written by 4Z5BS
08/12/96
-------------------------------------------
Overview
========
SBTSR allows you to receive and transmit FM-FAX, SSTV and AM-FAX
using only your Sound Blaster card ! All you need is a
Sound Blaster Pro and some wires to connect the card to your
transceiver.
FM-FAX (or just FAX) and SSTV can be found on all the HF bands from
amateur radio stations and from broadcasters. AM-FAX
is transmitted by the NOAA weather satellites (137 Mhz) and GOES
geostationary weather satellites (1691 Mhz). It is also a great
mode to transmit pictures on the VHF and UHF bands using
FM transmissions.
Hardware requirements
=====================
1. 80486DX2 or better.
2. Sound blaster Pro or better.
Installing
==========
The first thing you have to do is install JVFAX 7.0 or better.
It comes with good documentation so I assume you already
did it. Before you load JVFAX load my program, SBTSR.
After quiting JVFAX you can unload SBTSR from memory using
"SBTSR -u". I wrote a batch file that does that for me:
RUN.BAT
-=-=-=-
SBTSR
JVFAX
SBTSR -u
You might want to add some command to control the Sound Blaster
mixer. Setting the input volume to high will seriously
damage the quality of picture received. When receiving
AM-FAX (from NOAA satellites usually) the AGC circuit
in the sound blaster should be turned off if possible.
Other parameters
================
You can transmit AM-FAX by using the "-a" parameter.
For reception in AM-FAX, in FAX mode, choose a mode
that uses AM or press D to select AM1.
Use -c24 or any other number if the picture is slanted.
This should correct the error in the clock.
Although I believe the program is already calibrated,
cards can have differences. If you see pictures slanted
begin either increasing or decreasing this value.
Good numbers to begin with are -c100 and -c-100.
If you want the program to automatically push PTT
use the -k3f8 parameter if you use COM1. For COM2
use -k2f8. The RTS line in the serial line is on whenever
transmitting. Connecting this line to the P.T.T. of the
transmitter using a simple interface like a transistor
saves you the need to press PTT.
The sound blaster settings are taken from the environment
settings so you don't have to change them usually.
Known Problems
==============
The clock sometimes runs too fast. It seems to be
necessary in SSTV mode; if your clock does not
run too fast in SSTV mode, try to change to WR120
mode and press the '5' key several times.
The Sound Blaster 16-bit card allows much better results
in AM mode. It is also more accurate so if you have
one, use it.
Disclaimer
==========
I shall not be liable for any direct, indirect, consequential or incidential
damages arising out of the use of this software. Use only at your own
risk.
Copyright notes
===============
This program is neither shareware nor public domain.
You have the right to use this program for non commercial purposes without
further permission. You can copy it and share it as long as you
don't charge any money for it.
Sound-Blaster (c) 1989-1991 Creative Labs Inc
JVFAX is the Copyright property of Eberhard Backeshoff, DK8JV.
(c) 1994 by Eberhard Backeshoff, Obschwarzbach 40a, D-40822 Mettmann, Germany.
Thanks
======
Thanks to Ethan Brodsky for the Sound Blaster library
and documentation.
4Z5BS - Oded Regev
PACKET: 4Z5BS@4Z4AAA.ISR.MDLE
EMAIL : 4z5bs@4z4aaa.ampr.org
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