Hi Forum
I’m using a EXA Spectrum analyzer with WLAN option and is trying to set a Cable loss dB Offset in the WLAN mode.
My setup is that I have WLAN device and 1M of cable to the EXA spectrum analyzer, so I want to set my external loss to 1 dB so my measurements represent the actual transmitted power from my WLAN device.
In SA mode there is an option to set the external cable Offset(Ref Lvl OFFset) but in WLAN mode this seems not an option.
When study the manual there seems only an option for this in SA mode.
Does anyone know how to set the external loss in WLAN mode and if yes the GPIB command as well.?
BR Soren B
I’m using a EXA Spectrum analyzer with WLAN option and is trying to set a Cable loss dB Offset in the WLAN mode.
My setup is that I have WLAN device and 1M of cable to the EXA spectrum analyzer, so I want to set my external loss to 1 dB so my measurements represent the actual transmitted power from my WLAN device.
In SA mode there is an option to set the external cable Offset(Ref Lvl OFFset) but in WLAN mode this seems not an option.
When study the manual there seems only an option for this in SA mode.
Does anyone know how to set the external loss in WLAN mode and if yes the GPIB command as well.?
BR Soren B
The feature you want to use is External Gain, which is found under the Input/Output menu. Simply enter a negative value for a lossy device such as your cable.
In SA mode, there are actually THREE ways to accomplish the task. You can use Ref Level Offset, which is a feature we have had in our analyzers for over 30 years, or you can use External (Preamp) Gain, or you can use Corrections. Both External Gain and Corrections are found in the Input/Output menu. Corrections does require that you have a license for N9060A-3FP.
The nice thing about the Corrections feature is that you can enter a correction as a function of frequency. This is good if you are making measurements over a wide frequency range and the device for which you are correcting is not flat over that range.
The External Gain and Ref Level Offset features are single-value corrections; the same correction will be applied at all frequencies.
In many of the communications-oriented applications, such as GSM/EDGE and W-CDMA, the Preamp Gain setting under External Gain is replaced with MS (mobile station) and BTS (base transmitting station) settings. This allows for the situation where you need to apply different corrections when measuring these two types of devices.
Regards -