Section Ii - Description - Icom IC-201 Instruction Manual

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| SECTION II - DESCRIPTION
The ICOM IC-201 transceiver for 2m Band is a precision built high performance transceiver,
providing SSB (USB and LSB), FM and CW modes of operation with an output power of 10 watts.
This is an extremely durable transceiver which has state of the art devices such as integrated
circuits, field effect transistors, varactor and zener diodes engineered into a tight knit straight for-
ward electronic design throughout both transmitter and receiver. Reliability, low current demand,
compactness and ease of operation are the net result.
The dual conversion receiver with its FET front end and high-Q helical resonators boasts low noise
and sensitivity of —6dB/ AV or less. Audio reproduction is of an unusually high order of distortion
free clarity. High stability is obtained by using permeability-tuned VFO and double tuning system
(SOKHz or 16KHz/T). The HC-attenuator is highly effective for crossmodulation interference.
"Тһе IC-201 FM and SSB modes have individual filters. Other features include tone control,
marker for caliblation 0, 500, 1000KHZ, wide band linear amplifier, VOX, Break-in circuit, CW
monitor, dual power supplies (DC 13.8V and AC117V or 220V) and an ingenious final PA
transistor protection device, APC (automatic protection circuit) is also incorporated in the final
output circuitry. Should difficulties occur, (high SWR, ANT mismatch) the APC instantaneously
disables the final PA.
All circuitry is constructed in a series of modules which are easily removable for servicing. The
modulés are housed in a sturdy plated brass frame, which is in turn housed in a rigid metal case,
providing an extremely durable and rugged unit. Test points are brought up from all major circuits
to facilitate maintenance checks and trouble shooting should the neccessity arise.
A modern styled face plate, easy-to-read meters, and convenient controls with specialized design
complete the unit's styling. The IC-201 is a welcome addition to any fixed station or automobile.