Ron,
thanks for the input!
On 03/25/2014 12:02 PM, Ron Economos wrote:
> I took a look at the SBX schematic. The final output
> uses a Mini-Circuits PHA-1+ MMIC amplifier that's
> rated at +22 dBm output power at 1 dB compression.
>
> It would seem that the gain distribution of the SBX
> is arra
On 03/24/2014 05:44 PM, Gayathri Ramasubramanian wrote:
> Thanks for looking into my post.
> I used a cable to connect to the spectrum analyzer ( united microflex
> 150 with 15 db/ft attenuation, my cable length was 1 ft). However before
> connecting to the spectrum analyzer, I had an attenuator se
I took a look at the SBX schematic. The final output
uses a Mini-Circuits PHA-1+ MMIC amplifier that's
rated at +22 dBm output power at 1 dB compression.
It would seem that the gain distribution of the SBX
is arranged so that the PHA-1+ cannot be overdriven,
even at DAC full-scale and 0 dB attenu
Hi Ron
Sorry about that. Please find attached the modified graph.
The two curves seems more consistent in this graph.
I am assuming the DAC should have reached saturation at Ampl =1. However my
reading don't seem to depict that so well.
Would it have been better to started at such lower values of
The graph doesn't match your numbers.
Ron
On 3/23/2014 8:56 PM, Gayathri Ramasubramanian wrote:
Hi,
I am trying to characterize the TX and RX characteristics of USRPN210 with a
SBX board.
I have tried one test : Amplitude Variation effects, by varying the
amplitude in steps and finding out the
Hi Martin
Thanks for looking into my post.
I used a cable to connect to the spectrum analyzer ( united microflex 150
with 15 db/ft attenuation, my cable length was 1 ft). However before
connecting to the spectrum analyzer, I had an attenuator set to 50 dB.
These readings were taken with a gain set
On 03/24/2014 05:56 AM, Gayathri Ramasubramanian wrote:
> I am trying to characterize the TX and RX characteristics of USRPN210
> with a SBX board. I have tried one test : Amplitude Variation
> effects, by varying the amplitude in steps and finding out the o/p
> power through spectrum analyser. The
Hi,
I am trying to characterize the TX and RX characteristics of USRPN210 with a
SBX board.
I have tried one test : Amplitude Variation effects, by varying the
amplitude in steps and finding out the o/p power through spectrum analyser.
The foll are the readings I got.
Amplitude level 921.25 MHz
