Specifications; Section |" Agre Gteic Among: Рата Те О - Icom IC-720A Instruction Manual

SECTION 1 SPECIFICATIONS
GENERAL
Number of Semi-Conductors:
Transistors 105
FET 16
IC (Includes CPU) 51
Diodes 219
Frequency Coverage:
Нат Band 1.8MHz~ 2.0MHz
3.5MHz~ 4.1MHz
6.9MHz~ 7.5MHz
9.9MHz ~ 10.5MHz
13.9MHz ~ 14.5MHz
17.9MHz ~ 18.5MHz
20.9MHz ~ 21.5MHz
24.5MHz ~ 25.1MHz
28.0MHz ~ 30.0MHz
General Cover (Receive Only)
0.1MHz ~ 30.0MHz
Thirty 1MHz Segments
Frequency Control:
CPU based 10Hz step Digital PLL synthesizer.
Independent Transmit-Receive Frequency Available on
same band. |
Frequency Readout:
6 digit 100Hz readout.
Frequency Stability:
Less than 500Hz after switch on 1 min to 60 mins, and
less than 100Hz after 1 hour. Less than 1KHz in the
range of --10°C to +60°C.
Power Supply Requirements:
ОС 13.8V +1590 Negative ground Current drain 20А
max. (at 200W input)
AC power supply is available for AC operation.
Antenna Impedance:
50 ohms Unbalanced
Weight:
7.5Kg
Dimensions:
111mm(H) х 241mm(W) x 311mm (0)
TRANSMITTER
RF Power:
SSB (АзЈ) 200 Watts PEP input
СМ (А, ), RTTY (F,) 200 Watts input
Continuously Adjustable Output power 10 Watts ~ Max.
AM (Аз) 40 Watts output
Emission Mode:
A3J SSB (Upper sideband and Lower sideband)
А, CW
F, RTTY (Frequency Shift Keying)
Аз АМ
Harmonic Output:
More than 40dB below peak power output
Spurious Output:
More than 60dB below peak power output
Carrier Suppression:
More than 40dB below peak power output
Unwanted Sideband:
More than 40dB down at 1000Hz AF input
Microphone:
Impedance 1300 ohms
Input Level 120 millivolts typical
Dynamic or Electret Condenser Microphone with
Preamplifier
RECEIVER
Receiving System:
Quadruple Conversion Superheterodyne with continuous
Bandwidth Control.
Receiving Mode:
Ај, Аҙ. (USB, LSB) Е, (Output FSK audio signal), Аз
IF Frequencies:
1st 39.7315MHz
2nd 9.0115MHz
3rd 10.75MHz
4th 9.0115MHz
with continuous Bandwidth Control
Sensitivity:
Less than 0.25 microvolts for 10dB S+N/N `
Selectivity:
SSB, CW, RTTY +1.15KHz at —6dB
(Adjustable to +0.4KHz Min)
+2.1KHz at —60dB
CW-N
(when optional filter installed)
+250Hz at —6dB
+750Hz at —60dB
AM +3.0KHz at —6dB
+9.0KHz at —60dB
(when optional filter installed)
+2.6KHz at —6dB
+6.0KHz at —60dB
Spurious Response Rejection Ratio:
More than 60dB
Audio Output:
More than 2 Watts
Audio Output Impedance:
8 ohms
Specifications are approximate and are subject to change without notice or obligation.