Icom IC-705
Key Specifications
- Bands
- 160m–6m, 2m, 70cm
- Power
- 5W (battery), 10W (13.8V external)
- Frequency Range
- Rx 0.030–470 MHz, Tx HF/VHF/UHF amateur bands
- Receiver
- Direct Sampling SDR
- MSRP (USD)
- $1,399
- Type
- portable hf
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No Japanese radio in the past decade changed field operation as dramatically as the Icom IC-705. Before its 2020 release, portable HF operators chose between compromised QRP rigs, heavy mobile transceivers, or separate HF and VHF/UHF radios in their packs. The IC-705 consolidated all-mode HF, 6 meters, 2 meters, and 70 centimeters into a 1.1-kilogram package with internal battery, GPS, Wi-Fi, Bluetooth, and the same direct-sampling SDR architecture that made the Icom IC-7300 a shack standard.
Overview
The IC-705 is Icom's answer to a question the amateur community had been asking for years: what if you could take IC-7300-class receiver performance hiking? The answer is not quite 100 watts and a built-in tuner — Icom made deliberate tradeoffs — but the result remains the most capable Japanese portable transceiver on the market for most operators.
RF direct sampling covers HF through the low VHF range, with down-conversion IF sampling above 25 MHz. The 4.3-inch color touchscreen provides real-time spectrum scope and waterfall display, a feature previously unavailable in this weight class. D-STAR digital voice is built in, along with GPS for position reporting and repeater location assistance. Wi-Fi and Bluetooth enable wireless connection to tablets and laptops for logging, remote control, and digital mode software without cable clutter.
Power output is 5 watts maximum from the BP-272 lithium-ion battery pack, rising to 10 watts with external 13.8 V DC supply. That QRP-to-low-power range is intentional: it preserves battery life for multi-hour activations while remaining usable with efficient portable antennas. Operators who need 100 watts for home base operation should pair a dedicated HF rig like the IC-7300 with the IC-705 for field work rather than expecting one radio to do everything.
The IC-705 lacks a built-in antenna tuner — plan for resonant antennas, manual tuners, or external auto-tuners in your field kit. Optional accessories like the LC-192 backpack and side panels transform the radio into an organized portable station.
Specifications
| Specification | Detail |
|---|---|
| Frequency coverage (Rx) | 0.030–470 MHz (continuous through 144 MHz band) |
| Frequency coverage (Tx) | 160m–6m, 2m (144 MHz), 70cm (430/440 MHz) amateur bands |
| Modes | SSB, CW, RTTY, AM, FM, D-STAR DV |
| Output power | 0.1–5W (BP-272 battery), 0.5–10W (13.8V DC external) |
| Receiver architecture | RF direct sampling (HF), IF sampling (VHF/UHF) |
| Display | 4.3" color TFT touchscreen with spectrum scope |
| Antenna tuner | None (external tuner required) |
| Battery | BP-272 Li-ion (~3 hours at 5W typical) |
| Connectivity | Wi-Fi (2.4 GHz), Bluetooth, GPS, microSD, Micro USB |
| Power supply | BP-272 battery or 13.8 V DC ±15% |
| Dimensions | 135 × 58 × 175 mm (with projections) |
| Weight | 1.1 kg (2.4 lb) with BP-272 |
Operating Notes
Successful IC-705 field operation starts with antenna planning. Resonant wire antennas, verticals, and linked dipoles work well at QRP power levels. Without an internal tuner, a portable LDG or Icom AH-705 auto-tuner is a common addition to field kits. Many Summits on the Air and Parks on the Air activators run end-fed half-wave antennas with minimal matching.
Battery management matters on long activations. The BP-272 provides roughly three hours at 5 watts continuous — adequate for most SOTA contacts but not a full contest weekend. Carry a spare battery or 13.8 V portable power supply for extended operations. USB power banks can charge the BP-272 but do not power transmit at full specification simultaneously.
Wi-Fi connectivity enables Icom's wireless spectrum display on tablets and simplifies digital mode operation. FT8 and JS8Call run well with a laptop connected over Wi-Fi or USB. D-STAR operators benefit from integrated GPS for position-aware routing through the digital network.
The IC-705 menu system shares DNA with the IC-7300 — operators familiar with one adapt quickly to the other. Filter settings, AGC options, and notch filtering help in noisy band conditions. Front-end overload is possible near broadcast stations or strong local transmitters; use attenuation and careful antenna placement in urban portable setups.
Who It's For
The IC-705 targets portable HF enthusiasts, SOTA and POTA activators, travelers who want one radio for HF and VHF/UHF, emergency communicators building go-bags, and base-station operators wanting a second rig for backyard or vacation use. It excels when weight and band coverage matter more than raw power.
It is not the right choice for primary home station operators needing 100 watts, contesters requiring dual receivers, or budget-conscious buyers who rarely operate away from the desk — a used Icom IC-7300 or Yaesu FT-891 delivers more power per dollar for fixed operation. Operators focused purely on emergency preparedness should also read our off-grid communications guide for how ham radio fits alongside LoRa mesh systems.
Related Reading
- Icom IC-7300 — 100W base-station companion with built-in tuner
- Yaesu FT-891 — compact 100W HF alternative for mobile base use
- Best Japanese radio for beginners — portable vs base-station buyer guidance
- Off-grid communications — integrating portable HF into preparedness planning
- Ham radio license guide — licensing requirements before transmitting
- Icom brand page — more Icom coverage on Japan Radio Guide
For cultural context on Japan's outdoor and travel traditions that parallel field radio culture, e2japan.com explores the country beyond the bench.