[TenTec] Oll & Digital Modes

[P C Andy Anderson]

Hi Lee, you are absolutely right about the 712. It will key the Oll as you have mentioned. I was hoping that someone would have some numbers to set up the levels initially.  For now I only plan on using 
PSK31 and just to check into a net once a week. Have not really got bitten by the digital modes yet?????
I will play with the levels on the Win sound card mixer, maybe that is all I need to do.

Tnx for your help, 

Andy, W3LI

________________________________________


Andy,  I think the 712 has a built-in VOX like function.  That is...when
sound is being sent to the radio via the 712, that sound trips an
internal (in the 712) circuit that drives the PTT line to the
transmitter causing it to key into transmit mode.  For that to happen
the sound level needs to be sufficient trip the PTT.  You can do that
via Windows sound card mixer.  The 712 will appear as "USB AUDIO DEVICE"
or some such description.  Go into "PLAYBACK" settings and increase
audio level until the PTT keys, then a little more for good measure.
After that you can set the proper audio level for transmit on the Orion
as needed.    Going from memory here.  I used a 712 for a short time
several years back but I don't care for VOX operation on digital modes,
especially on PACTOR so I built my own interface using a serial port
with a little bit of hardware.  Much more positive control for me.   :-)

Hope this helps.

73,

-Lee-

WA3FIY

------ Original Message ------
From: "P C Andy Anderson" <xtraham58 at hotmail.com>
To: "k9yc at arrl.net" <k9yc at arrl.net>; "Discussion of Ten-Tec Equipment"
<tentec at contesting.com>
Sent: 3/28/2016 1:09:27 PM
Subject: Re: [TenTec] Oll & Digital Modes

>Hi Jim,  TT has a cable with the sound card in line model 712, so there
>is no need to use the computer card. On one end is a USB connector and
>the other end has the mating connector for the Oll  I/O jack.
>
>VOX on or off makes no difference. The only settings are the Tx audio
>source, either Mic, aux or both. Works with it set at aux. The only
>other setting is the Aux input gain, currently set at 50???.
>Maybe something else on the Oll that I have not found yet, that is why
>I am asking here.
>
>Tnx for your suggestions.
>
>Andy, W3LI
>
>________________________________________
>
>
>
>Hi Andy,
>
>I don't know the Orion II, but you must put any rig into TX mode. This
>can be done either via some form of PTT or VOX.  Some rigs will take
>audio from a Line Input (like the USB audio unit) and some do not. My
>K3
>DOES let the Line Input activate VOX. So did the FT1000MP that I sold
>about 8 years ago.
>
>If you ARE using VOX, check the VOX sensitivity -- you may need to
>either increase the VOX sensitivity or increase the audio output of the
>computer sound card.
>
>VOX has always worked very well for me for all digital modes. I work a
>lot of RTTY for contesting and DX chasing, and the various WSJT modes
>on
>6M and 160M.
>
>Another thing that can prevent keying with RTTY (not not the other
>digital modes) is the RTTY settings (Baud rate, RTTY tone frequencies)
>must be the same on both computer and rig.
>
>Another thing that has bitten me in MMTTY is that every time you change
>the decode algorithm, it pulls in the default settings from a config
>file. So you may make a change, then change the decode setting, and
>overwrite the change you made. I don't know the other programs you
>tried, but they may have their own bear traps.
>
>This analysis of USB sound cards includes very detailed, step by step
>procedures for setting audio levels for digital modes.
>http://k9yc.com/USB_Interfaces.pdf
>
>73, Jim K9YC
>
>   On Mon,3/28/2016 9:32 AM, P C Andy Anderson wrote:
>>  Any help would be appreciated. TNX
>
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