Icom IC-705 QRP radio

 

 

Specifications

General
Frequency coverage (Unit: MHz)
  Receiver 0.030–199.999*
400.000–470.000*
  Transmitter 1.800–1.999
3.500–3.999
5.255–5.405*
7.000–7.300
10.100–10.150
14.000–14.350
18.068–18.168
21.000–21.450
24.890–24.990
28.000–29.700
50.000–54.000
144.000–148.000
430.000–450.000
Mode USB, LSB, CW, RTTY, AM, DV, FM, WFM (Rx only)
No. of memory channels Memory channels: 500 channels (100 groups)

Scan edges: 25 channels

Call channels: 4 channels (2 channels × 2 bands)

Antenna connector BNC connector (50Ω)(One connector for all bands)
Power supply requirement 13.8 V DC ±15% (with external power supply)

7.4 V DC (with BP-272)

Operating temp. range –10°C to +60°C; +14°F to +140°F
Frequency stability Less than ± 0.5 ppm

(–10°C to +60°C; 14°F to 140°F)

Frequency resolution 1 Hz
Current drain
Tx (Max. power)
RX (Max. audio)
RX (Standby)
13.8 V DC
Less than 3 A (10 W)
0.5 A (typ.)
0.3 A (typ.)
7.4 V DC
Less than 2.5 A (5 W)
0.8 mA (typ.)
0.5 mA (typ.)
Dimensions 200×83.5×82 mm; 7.9×3.3×3.2 in (W×H×D, projections not included)
Weight 1.1 kg; 2.4 lb (approx.; including BP-272)

* Some frequency bands are not guaranteed.

Transmitter
Output Power
SSB/CW/RTTY/FM/DV
AM
13.8 V DC
0.1 to 10 W
0.025 to 2.5 W
7.4 V DC
0.1 to 5 W
0.25 to 1.25 W
Modulation system SSB : Digital PSN modulation

AM : Digital low power modulation

FM : Digital phase modulation

DV : GMSK digital phase modulation

Spurious emissions Less than −50 dB (HF)

Less than −60 dB (50 MHz)

Less than −60 dB (144/430 MHz)

Carrier suppression More than 50 dB
Unwanted sideband More than 50 dB
Receiver
Receiver system
0.030 to 24.999 MHz
25.000 MHz and above
RF Direct Sampling
Down Conversion IF Sampling
Intermediate frequencies 25.000 MHz and above:38.85 MHz±0.5 MHz
Sensitivity
(HF: Preamp-1 ON,
50 MHz: Preamp-2 ON,
144/430/440 MHz: Preamp ON)
0.500 to 1.799 MHz 1.800 to 29.999 MHz 50 MHz to 54 MHz 144/430/440 MHz
  SSB/CW(10 dB S/N) 0.20 µV 0.15 µV 0.11 µV
  AM(10 dB S/N) 13.0 µV 2.0 µV 1.0 µV 1.0 µV
  FM (12 dB SINAD) 0.5 µV
(28.000 to
29.700 MHz)
0.25 µV 0.18 µV
  DV (1% BER) (PN9) 1.0 µV
(28.000 to
29.700 MHz)
0.63 µV 0.35 µV
Selectivity (Filter: SHARP)
SSB(BW=2.4 kHz)
CW(BW=500 Hz)
RTTY(BW=500 Hz)
AM(BW=6 kHz)
FM(BW=15 kHz)
DV(12.5 kHz spacing)
More than 2.4 kHz/-6 dB / Less than 3.4 kHz/-40 dB
More than 500 Hz/-6 dB / Less than 700 Hz/-40 dB
More than 500 Hz/-6 dB / Less than 800 Hz/-40 dB
More than 6.0 kHz/-6 dB / Less than 10 kHz/-40 dB
More than 12.0 kHz/-6 dB / Less than 22 kHz/-40 dB
Less than -50 dB
Spurious and image rejection ratio
(SSB/CW/AM/FM)
HF
50 MHz
144 MHz
430 MHz
More than 70 dB* (except for ADC aliasing)
More than 70 dB*
More than 65 dB
More than 54 dB
*At intermediate frequency in -25–30 MHz or 50–54 MHz: More than 50 dB
Audio output power
Internal SP
External SP
More than 530 mW (12Ω load at 10% distortion)
More than 200 mW (8Ω load at 10% distortion)

Supplied Accessories

  • HM-243 Speaker-microphone
  • BP-272 Battery pack
  • OPC-2421 DC power cable

 

 

AA4CB Chris

Hello. I live in Ridge Manor and have been licensed since 1988. I serve GCARC as a board member, Public Information Officer (PIO) as well as the club's webmaster and social media manager. I also try to maintain the Clubhouse. I operate mostly the Digital modes on HF such as FT8 ,PSK, and OLIVIA. On VHF/UHF I stay on Yaesu System Fusion locally. I have been doing presentations for local clubs about WIRES-X and Fusion for the past couple of years.