alte - anti
- alteration switch
- alternate
- alternate channel
- alternate frequency
- alternate mark inversion
- alternate mark inversion signal
- alternate route
- alternate routing
- alternating
- alternating current
- alternating current/direct current
- alternating field
- alternating voltage
- alternative
- alternative program
- alternative route
- alternative routing
- alternative routing indicator
- alternator
- altimeter
- altitude index
- ALU
- aluminium jacket
- aluminum
- AM
- amateur radio
- ambience
- ambient conditions
- ambient noise
- ambient temperature
- ambiguity
- ambiguity error
- ambiguity test
- amendment file
- American National Standards Institute
- American Standard Code for Information Interchange
- American Standards Association
- ammeter
- amount field
- amperage
