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Frame Check Sequence (FCS), sometimes also called Cyclic Redundancy Check, in High-level Data
Link Control (HDLC) frame used for the Point-to-Point Protocol (PPP) — a practical approach
for the programmer.
FTP (A & P)
The file transfer protocol uses two ports and can be used in active or passive mode. The difference
of those two modes is shown.
The electromagnetic radio frequency (RF) spectrum from the ultra long waves to the microwaves with
the names, frequencies and bands.
Some calculators that help in determining the parameters necessary to access a telecommunications
- Aligning a parabol antenna (satellite dish) to a satellite,
- Calculation of the intermediate frequency (IF) for converters,
- Calculation of the bandwidth of differently modulated carriers.