Advantages of DS/SS :
- It has best noise and anti-jam performance.
- Simple hard ware implementation.
- It support high coverage range due to low SNR requirement at receiver.
- Do no require high speed fast setting frequency synthesizer.
- It has best discrimination against multi-path signals.
- The unidentified receivers find it difficult to detect the direct sequence signals.
- It can be employed in point to point application at the rate of 11 Mbps.
- Determination of relative timing between transmitter and receiver.
Disadvantages of DS/SS :
- DS/SS has a longer acquisition time.
- It require wideband channel with small phase distortion.
- The pseudo noise generator must generate sequence at high rates.
- Near-far problem.
- Fast code generator needed.
- The system is prone to error at lower than frequency hoping spread spectrum.