Source: rigpix
Transceivers
Updated: 09/02/2026
Icom IC-S21A
Confidence score: 50%
Estimated value
568€
Theoretical estimate
482€
Minimum
653€
Maximum
Specifications
GENERAL
- Type
- Amateur VHF transceiver
- Frequency range
- USA and Australia TX: 144-148 MHz RX: 138-174 MHz Asia TX: 144-148 MHz RX: 138-174 MHz (The wide RX frequency range may require modification for some markets)
- Tuning steps
- 5 / 10 / 12.5 / 15 / 20 / 25 / 30 / 50 KHz
- Frequency stability
- ±10 ppm @ 0 to 50°C (32 to 122°F)
- Mode
- FM
- Channels / memory management
- 100 regular 6 scan edge pairs 1 call 1 repeater Priority watch
- Repeater shift / offset
- Programmable
- Power supply
- 6-12 VDC (Depending on battery pack) or 4-16 VDC external
- Current drain / power consumption
- RX: 8-160 mA TX: 90 mA to 1.8 A
- Antenna impedance / connector
- 50 ohm / SMA
- Dimensions (W*H*D)
- 54*111*36 mm (2.1*4.4*1.4")
- Weight
- 315 g (11.1 oz)
- Other features
- CTCSS/PL with tone scan (Option).
RECEIVER SECTION
- Receiver system
- Double conversion superheterodyne 1st IF: 30.85 MHz 2nd IF: 455 KHz
- Sensitivity
- 0.16 uV (12 dB SINAD)
- Squelch sensitivity
- Less than 0.13 uV (Threshold)
- Selectivity
- 15 KHz (-6 dB) 30 KHz (-60 dB)
- AF output power / speaker
- 300 mW at 10% distortion / 8 ohm
- External speaker connector
- TS "Minijack" (3.5 mm), 8 ohm
TRANSMITTER SECTION
- Modulation system
- Variable reactance frequency modulation
- Max FM deviation (Factory set)
- ±5 KHz
- Spurious emissions
- Better than -60 dB (High)
- Microphone impedance / connector
- 2 Kohm / ?-pin (2.5 mm)
- Microphone input level
- ? mV
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