[TenTec] Orion II RTTY Problem

[Ron Castro]

That's the problem!  I was listening in LSB, not RTTY mode, which the 
recommended method for using MMTTY.  An advantage of using AFSK is that you 
can "point and shoot" at any signal you see in your passband, and your 
transmitted frequency will automatically be right on.  Most programs will 
track the received signal and follow it if it drifts.

Ron Castro
Chief Technical Officer
Results Radio, LLC


----- Original Message ----- 
From: "Douglas Shock" <douglas.shock at gmail.com>
To: "Discussion of Ten-Tec Equipment" <tentec at contesting.com>
Sent: Monday, February 13, 2006 10:44 PM
Subject: Re: [TenTec] Orion II RTTY Problem


>I sorta saw the same thing this weekend. I found that at times if I set the
> PBT to -1950 I could not run the BW below 700. Other times it did just 
> fine
> down to 180. I changed from SSB to rtty AFSK and this is when I saw the
> issues. Made me shake me head as the settings would work once but not 
> twice
> and then the 3rd time is would work.
>
> I did notice that if I backed off the BW then I could get both the mark 
> and
> space and then wiggle the PBT and BW back to -1950 and a BW of 200 to 600.
> When it did work I could take the BW down to 180 without any loss of the
> space.
>
> Beats me.
>
>
> On 2/13/06, CaseKE at aol.com <CaseKE at aol.com> wrote:
>>
>> My Orion II arrived last Friday.  It is working superbly EXCEPT for a 
>> RTTY
>> problem.
>>
>> I am using AFSK via a sound card (same setup as for my Orion - and that
>> still
>> works fine on RTTY).
>>
>> The problem with the OII is that when I run it on LSB and PBT at 1960 per
>> the
>> TenTec instructions, I am not able to get the signal to decode, even
>> though I
>> can hear RTTY signals through the speaker or headphones.  The tuning
>> window,
>> a pair of orbit-shaped ovals, will not open up for tuning.
>>
>> HOWEVER, when I go to USB and PB 1960, and also to REVERSE MODE on my 
>> RTTY
>> software,  all works well and I can make QSOs, except everything is
>> backwards.
>>
>> Here are some things I tried, with no change in the problem:
>> 1.  Taking audio from the headphones rather than from the audio out on 
>> I/O
>> plug in back.
>> 2.  Reloading the current update.
>> 3.  Loading the previous update.
>> 4.  Pulling the skins and checking quite carefully for connection
>> problems.
>>
>> Just to be sure I hadn't goofed something up, I fired up the Orion (I) in
>> place of the Orion II and it still works fine using the same setup, so it
>> is
>> something to do with the Orion II.
>>
>> Has anybody had this problem?  Is anyone having success on LSB using AFSK
>> RTTY?  Suggestions?
>>
>> 73, Ken Case K5KC
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>>
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