← All labs · EE-410L Communication Systems Lab · UMT · Fall 2026

Lab 11.
Frequency Division
Multiplexing.

A 3D IR-4104 transceiver on the bench with a scope, a spectrum analyzer, a counter and a meter. Put two audio messages on two carriers, add them into one signal, then pull each message back out with its own band pass filter and DSB demodulator, exactly as in Figure 1 of the manual.

Read the concepts first →
IR-4104FDM transceiver, two channels
3 experimentsthe manual procedure, the spectrum, the local carrier
Section 11.3of the Lab 11 manual
Before you start

Your details

When you enter, your name, ID, section and network (IP) address are recorded for attendance. Your readings and report stay on this computer.

01
Read the concepts page: DSB with a balanced modulator, the multiplexed spectrum and guard band, band pass filters and the product detector.
02
Guided mode walks through every manual step and ticks it when the bench is really set.
03
Record readings and export a PDF sheet with scope and spectrum captures.
Designed by
Fasih Ullah Saleem