[TenTec] Is the Orion Performance Table COorrect?

[WA3FIY]

James,

The numbers you quoted for the K2 are for 20Khz spacing.  The 
numbers Ten Tec quoted are for 5 Khz spacing.   As you can see, 
the Orion has close in performance that is unmatched by a long shot 
by any other popular radio.

Take a look at the close in composite noise too.  The Orion is better 
at 2 Khz than the K2 at 20 Khz.  This contributes to even better close 
in performance.  At a glance, it looks to me like the synthesizer in the 
Orion meets or beats some of the best analog VFO/PTO's for low 
noise.

73 de Lee, WA3FIY



On 17 Apr 2003 at 18:30, James R. Duffey wrote:

> There appears to be an error in the performance comparision posted on the
> Ten-Tec site:
> 
>                       5 kHz 2 tone 3rd order dynamic range   5 kHz IP3
> IP3                            
> 
> ORION                 101 dB                                  +24 dBm
> 
> Elecraft K2            88 dB                                   +1 dBm
> 
> Ten-Tec says that the K-2 numbers are from ARRL product reviews, 14 MHz,
> preamp off.
> 
> The ARRL procuct review lists these numbers for the K-2
> 
> 
> Two-tone, third-order IMD dynamic range: Two-tone, third-order IMD dynamic
> range (700-Hz IF filter):
> 
> 14 MHz  98 dB
> 
> Third-order input intercept point: Preamp off
> 14 MHz +21.6 dBm 
> 
> These numbers seem to be different, that is  better, than the ones Ten - Tec
> posted.
> 
> The Orion performance is still better, but not by as much of a margin.
> 
> I was going to post the Ten-Tec numbers on the Elecraft list and thought I
> would check them first. Does anyone have an idea where the difference is? Or
> did I miss something obvious? - Dr. Megacycle KK6MC/5