Re: [amsat-bb] Echo Success MixW & Tlmecho

[Cliff Buttschardt <cbuttsch@xxxxxxxx>]

Excellent information well thought out Hasan!  I'll confirm this at the CUBESAT
lab and let you know.  We definitely need to get MixW2 going on 9600 baud without
a TNC in the line.  Any updates lso appreciated.  Cliff K7RR

hasan Schiers wrote:
> 
> Well, I got it to work. DO NOT GO THROUGH AN INTERFACE!!!
> 
> WinXP Home, Celeron 550 Mhz, 256 mb ram
> Yaesu FT-847, PKT 6-pin mini-din pin 4 wired DIRECTLY to sound card line in.
>     (I used a Radio Shack Keyboard/Mouse Extension Cable # 26-149A and
> chopped the female end off.) Pin out follows below:
> 
> MixW32 2.12 with its KISS TNC emulation and Comm Port Emulator (Mix). The
> com port emulator is a separate download, I used the later version that
> supports up to 10 ports and includes source code. Download at MixW site
> 
> Sound Card: Creative Ensoniq PCI
> 
> In the emulator properties I set the com port emulator Pair 1 to use Com3
> and Com4 19200.
> I set Tlmecho to use Com4 at 19200.
> I told MixW KISS EMULATION port to use Com3.
> The 9600 baud setup screen in MixW has KISS emulation turned on, and
> "enabled".
> 
> Other than putting in my callsign and grid square and port number, I left
> all the defaults as they were in Tlmecho. (19200 baud).
> 
> So: MixW TNC Emulation Port Com3
>       Tlmecho Port: Com4
>       MixW Port Emulator Pair Defined as Com Ports 3 & 4 (top=3, bottom=4)
>         Note: these are not "real" serial ports and do not show up in device
> manager.
> 
> With this setup I was able to decode my D7A(g) handheld at 9600 baud and
> have it show up in Tlmecho. I'm waiting for a pass to see if I decode
> telemetry, but I'm sure it's all working now.
> 
> One oddity is that packets sent from my D7A(g) as N0AN-8, show up in Tlmecho
> as originating from N0AN-11. It must have something to do with how the KISS
> emulation stuff works.
> 
> ===================================================
> Radio Shack Keyboard/Mouse Extension Cable # 26-149A Pin out:
> 
> Pin 1  Black - Data In (tx data)
> Pin 2  Brown - Signal Ground
> Pin 3  Red - PTT
> Pin 4  Orange - 9600 rx audio (to sound card line in)
> Pin 5  Yellow - 1200 rx audio (ditto if using 1200 baud)
> Pin 6  Green - Squelch.
>     Note: I did not connect the bare wire that is "extra".
> ====================================================
> 
> I only used Pin 4 and Pin 2, 9600 rx data and Signal Ground respectively. I
> soldered them to a 1/8 inch mini-plug (mono).
> 
> To help with layout of the 6 pin mini-din:
> 
> With the connector in your hand, pins facing you, black notch at bottom. The
> two pins at the top have wide spacing, the two at the bottom have narrow
> spacing.
> 
> Clockwise from the bottom left pin: (wire color added corresponds to the
> colors of the wires, once you chop off the female end and unravel the foil
> shield)
> 
> Pin 6 GRN Squelch
> Pin 4 ORG RX 9600
> Pin 2 BRN Signal Ground
> Pin 1 BLK Data In (tx)
> Pin 3 RED PTT
> Pin 5 YLW RX 1200
> 
> ----------------------------------------------------------------------------
> -----------
> 
> On a Win98SE machine, I was also able to get MixW32 2.12 to decode packets
> from Echo, but the com port emulator for Mix won't run on Win98, but at
> least I saw some actual data from Echo on this machine.
> 
> On a different WinXP system, with a SoundMax Digital Audio setup on the
> motherboard, I was NOT able to decode the same handheld. Something looks
> very screwy ...as I can't get the background noise level to drop to anywhere
> near zero by adjusting the audio input level to the line in jack. I suspect
> a ground loop or something inherently incompatible with the sound card on
> the motherboard.
> 
> I hope this long explanation is not too tedious, but I would have really
> liked this same step by step description to help me before I slogged through
> it myself. My apologies for the length of the post. Hope it helps some of
> you that may want to copy ECHO telemetry with nothing more than a sound card
> and the ubiquitous 847's.
> 
> 73, hasan, N0AN
> 
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