[TenTec] ORION ll

[Bob McGraw - K4TAX]

I basically agree with James, "what's wide?".  How was it determined that it 
was wide?  If the TX BW is 2800 Hz and the TX Low End Roll-off is 150 Hz 
then the transmitted bandwidth is 2650 Hz.  In general that is will within 
the technical acceptable standards for SSB bandwidth.

Could it be that the Orion II audio along with the B-1 mike and the VX-2000 
is really very clean and thus "sounds" wide?  Could be.  Many radios on the 
bands today along with the hosts of mikes and applications being used do not 
have really clean audio.  One thing I've enjoyed about Tentec radios, they 
have great audio, both on receive and transmit.

Things that make audio sound wide could be excessive ALC action meaning the 
MIC audio level is too high and the ALC is very active.  Another thing is a 
bit of RF getting into the audio that causes a splatter sounding audio while 
in actuality the transmitted bandwidth is not wider than the definition of 
the filter system, low end and TX BW settings.

Do head for the manual and the adjustments for the TX Low frequency roll-off 
and the TX SSB BW values.  To keep things simple, I would start with a mike 
connected direct to the MIC input and not use anything else until one is 
satisfied all is working correctly.  Then add in the AUX equipment and 
observe the results.

73
Bob, K4TAX




----- Original Message ----- 
From: "Bob Gibson" <w5rg at yahoo.com>
To: <TenTec at contesting.com>
Sent: Friday, June 21, 2013 4:15 PM
Subject: [TenTec] ORION ll


Great fellows..Thanks for all the advice on the radio..Just to answer a few 
questions..This is a new radio from the factory..one week old..I do not run 
the speech processer at all..I was told that I was to wide..the audio 
sounded fine..just to wide..I'm going to run the audio into the back of the 
radio with everything on the VX-2000 turned off but the 48volts that the mic 
needs..if this doesn't help..I will call and get a new mic..either the 706 
or the 709...I do really like the rig on rec..once I get the audio set right 
it should be fine..I think I will call TenTec now and see what a mic will 
cost me and just get rid of the other stuff I have here..sounds like I don't 
need it..I'll let everyone know the outcome..73s Bob
Bob Gibson W5RG
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