Cabeling
- Connect USB cable to a computer preferably running Windows (only needed for first time setup)
- Connect the ethernet cable to your local network
- Connect the backside pin labeled "Tone In" to a signal generator
Setup
- Connect your Windows PC via USB
- On your PC install the "mini-circuits RF switch software" (http://194.75.38.69/softwaredownload...ller_Setup.zip)
- Open the "mini-circuits RF switch software" and press the "USB" button. Then hit "Ethernet config"
- Uncheck the DHCP option. Assign a static IP-address. Note down the IP-addres.
Testing
- Connect one of the four (module A,B,C,D) frontside pins labeled "COM" with a spectrum analyzer.
- On your external signal generator produce a line at any place in the 0-2 GHz regime.
- Using the mini-circuits software: For the module that you have connected to your spectrum analyzer switch to the "COM->2" setting. A red line should be displayed that connects the pins "COM" to "2".
- On your spectrum analyzer select the band 0-2.5 GHz. You should see something like the following:
- the bandpass should be more or less flat in the bacn 0-2GHz.
- Check that the line appears exactly at the right position.
Checking/adjusting the power level
The noise generator integrated output power level should match the required input power level of the R2DBE of -7dBm. The spectrum displayed above has power levels ranging from -40dBm to -43dBm (resolution here was 1Mhz). Integrated over the whole 2GHz band this would yield a power level of -7dBm to -10dBm.
Open questions
- How crucial is the -7dBm input level of the R2DBE?In the example above is amplification required?
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.png?size=webview "2015-03-13 18_09_17-Mini-Circuits - RF Switch Controller (Ver D6).png")
.png?size=webview "2015-03-13 18_12_55-Mini-Circuits - RF Switch Controller (Ver D6).png")