Icom IC-475H Instruction Manual page 5

Ш ICOM'S NEWLY DEVELOPED STATE-OF-THE-ART FREQUENCY SYNTHESIZER
e5msec lockup time.
ICOM proudly announces its recent technological breakthrough in
developing a new frequency synthesizer system: the ICOM DDS
(Direct Digital Synthesizer) unit. Operating in just 5 milliseconds,
this new system provides one of the fastest transceiver lockup times
available on the market today, and is ideal for use with the popular
PACKET and AMTOR communications systems. 1СОМ engineering
has achieved this through the design of a sophisticated PLL UNIT
which mixes, in split second time, DDS generated source frequencies
in an advanced double phase-locked loop system.
Ш NEWLY DEVELOPED ICOM CPU INSTALLED
e Built-in 99-channel large memory capacity.
ө Advanced remote control system.
e Easy-to-read display.
eScanning versatility.
Ninety-nine programmable memories are provided in the 1С-475Н
to store frequency, mode, subaudible tone frequency, 'subaudible
tone function ON/OFF, duplex direction, and offset frequency
information. These memories are backed up by a lithium backup
battery for up to five years.
Full communications using a personal computer equipped with an
RS-232C port are possible by using the serial port mounted on the
rear panel of the IC-475H. Тһе computer controls frequency,
mode, VFO A/B selection, and memories when an appropriate
interface is used. The serial port uses a standard 1200bps data
transfer rate.
An LCD (Liquid Crystal Display) in the 1С-475Н uses a soft orange
illumination for easy visibility when operating on bright days. This
display indicates the VFO in use, operating mode, memory channel,
split mode, scan mode and other information.
The 1C-475H incorporates a total of four separate scanning functions
for easy access to a wide range of frequencies.
eMEMORY SCAN repeatedly scans the entire 99-channel memory
in sequence.
e PROGRAMMED SCAN offers detailed coverage of a specific fre-
quency range through repeated scanning.
eSELECTED MODE MEMORY SCAN automatically monitors all
memories which contain programmed frequencies with a similar
mode.
eSKIP SCAN allows you to continuously scan your favorite pro-
grammed memory channels. |
Ш OUTSTANDING RECEIVER PERFORMANCE
ePBT and NOTCH control.
ICOM's Passband Tuning and Notch Filter systems have been incor-
porated in the past as standard high class features in ICOM HF
transceivers, but now these convenient features can also be enjoyed
in a UHF transceiver: the 1С-475Н. Passband Tuning allows conti-
nuous center frequency adjustment of the IF passband, while the
IF Notch Filter provides clear operating reception even in the
presence of strong interference.