2. Tasks Completed
Organized RF PA Tx performance data into charts and tables
Performed Tx and Rx tests on RF cards
Helped write scripts to automate Tx testing
Assisted team with circuit reworks
Took S parameter measurements of different RF devices
Ex filters, duplexers, isolators
Experienced using factory test document
Used document to program MBO motherboard and RF cards
Followed document to look for errors,
6. What I Learned
RF is very different than DC
How to use different measurement devices
Ex. signal analyzers, network analyzers, electronic loads, and power meters
How to configure devices to display desired information
RF devices and terms
Ex. Filters, duplexers, isolators, couplers, attenuators, splitters
AM/FM, ACLR, FDD/TDD
Logarithmic scale for power/loss (dBm, dB, etc)
Smith charts, impedance matching, S parameters
Soldering SMD components on PCBs (component standards)
RF cable types (N-type, SMA, BNC)
7. Important Lessons
Always always always check maximum ratings on measurement devices
Fuse was blown on digital multimeter
Equipment can be costly and also take valuable time to fix
Never trust technology – make sure your data is reasonable
Verify the data before sending it to others
Equation for boost converter given by MS Excel was incorrect
Importance of having organized data
A viewer might want data presented in another way
Someone else can look at the data without you present
