[TenTec] Tone(s) on Pegasus receive

Dan.Newby@cti-pet.com Dan.Newby@cti-pet.com
Mon, 7 Jan 2002 14:33:28 -0500


The reason I tried to explain in terms of hearing is because that is what
you asked.

Quote:  How come you are hearing the birdies or whatever if they are below
the
noise floor of the receiver?

Ten Tec said they measured it. I would imagine they measured the noise
floor and saw a level that met spec
and that measurement would have included the birdies or tones as some are
calling them.
I didn't state that they necessarily measured the birdie itself.  Maybe the
way I said it was a little misleading.
Sorry, if that was the case.


Dan






                                                                                                                   
                    "George, W5YR"                                                                                 
                    <w5yr@att.net>       To:     Dan.Newby@cti-pet.com                                             
                                         cc:                                                                       
                    01/07/2002           Subject:     Re: [TenTec] Tone(s) on Pegasus receive                      
                    11:59 AM                                                                                       
                                                                                                                   
                                                                                                                   




Possibly, Dan, but from your posting, TenTec "measured" the level of the
birdies not merely detected them by ear from listening. Of course, signals
in a negative S/N situation can be detected and their amplitude estimated,
but not readily. I would doubt that TenTec's service department and techs
would have the equipment and know-how to do so.

I am not trying to start a picky argument here, but I honestly think that
TenTec is being less than candid with you with the response that you
quoted.

Clearly, they did something in the 1.5 firmware that let a genie out of the
bottle that had been contained in 1.4. Let's hope that they clean it up
with 1.6.

72/73, George W5YR - the Yellow Rose of Texas   QRP-L 1373 NETXQRP 6
Fairview, TX 30 mi NE of Dallas in Collin county EM13qe SOC 262 COG 8
Amateur Radio W5YR, in the 56th year and it just keeps getting better!
Icom IC-756PRO #02121  Kachina #91900556  IC-765 #02437

All incoming and outgoing email virus-checked by Norton Anti-Virus 2002


Dan.Newby@cti-pet.com wrote:
>
> I would say the best way to explain it would be similar to talking to
> someone on the air that you can hear and understand even when another
> station is there along with them but with a equal or stronger signal.
> If you have a level of noise and then inject say a 1khz tone at the same
> level or slightly lower, I beleive your ear will detect it.
>
> Dan