R75 Specifications
| General |
- Frequency Coverage: 0.03 - 60.000000
MHz
(Guaranteed: 0.1 - 29.99 MHz and 50 - 54 MHz only)
- Mode: USB, LSB, CW, RTTY, AM, FM
- Number of memory channels: 101 (99 regular, 2 scan edges)
- Frequency stability: Less than ±7 ppm from 1 min. to 60 min. after power on. After that rate of stability less than ±1 ppm/hr. at +25°C (=77°F). Temperature fluctuations 0°C to +50°C (+32°F to +122°F) less than ±5 ppm.
- Power Supply Requirement: 13.8 V DC ±15% (negative ground)
- Current drain (at 13.8 V DC): Standby: 0.9 A, Maximum audio: 1.1 A
- Power Adapter Supplied: Icom AD55A 120 VAC 60 Hz 35W
- Antenna connector: SO-239 (50 ), push connection terminal (500 )
- Dimensions (WHD): 9.5 x 3.7 x 9.1 inches (241x94x229 mm)
- Weight: 6 lb, 10 oz (3.0 kg).
- REMOTE connector: RS-232C D-sub 9-pin
- CI-V connector: 2-conductor 3.5 mm (1/8")
|
| Receiver |
- Receive system: Triple conversion superheterodyne
- Intermediate frequencies:
| Mode |
1st (MHz) |
2nd (MHz) |
3rd (kHz) |
| USB/LSB* |
69.0115 |
9.0115 |
455 |
| CW* |
69.0106 |
9.0106 |
455.9 |
| RTTY* |
69.0105 |
9.0105 |
456 |
| AM*/S-AM |
69.0100 |
9.0100 |
450 |
| FM |
69.0115 |
9.0115 |
450 |
*May differ according to selected IF filter.
- Sensitivity:
| Frequency Range |
SSB/CW/RTTY |
AM/S-AM |
FM |
| 0.1 - 1.8 MHz (Preamp OFF) |
2.0 µV |
5.6 µV |
- |
| 1.8 - 28 MHz (Preamp 1 ON) |
0.16 µV |
1.60 µV |
- |
| 28 - 29.99 MHz (Preamp 1 ON) |
0.16 µV |
1.60 µV |
0.22 µV |
| 50 - 54 MHz (Preamp 2 ON) |
0.13 µV |
1.00 µV |
0.20 µV |
- SQL sensitivity (threshold):
- SSB, CW, RTTY: Less than 5.6 µV (Preamp 1 ON)
- FM: Less than 0.32 µV (Preamp 2 ON)
- Selectivity:
- SSB, CW, RTTY: More than 2.1 kHz/-6dB, Less than 4.0 kHz/-60dB
- AM, S-AM: More than 6 kHz/-6dB, Less than 20 kHz/-60dB FM: More than 12 kHz/-6dB, Less than 30 kHz/-60dB
- Spurious and image rejection ratio: More than 70 dB (except IF through/50 MHz band)
- Audio Output Power (at 13.8 V DC): More than 2.0 W at 10% distortion with an 8 load
- PHONES connector: 3-conductor 6.35 (d) mm (1/4")
- External SP connector: 2-conductor 3.5 mm (1/8 in)/4-8
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