ICOM IC-705 explained

The ICOM IC-705 is a multimode HF/VHF/UHF portable amateur radio transceiver. The radio has 5 watts of output when using its internal battery and 10 watts of output when using external power.^[1] With the rise in award programs such as Summits on the Air, and Parks on the Air this lightweight fully functional radio is a popular choice for people using them in the field.^[2] The IC-705 has support for a wide variety of commonly used amateur radio modes including ICOM's proprietary digital voice mode D-STAR.^[3] The IC-705 is also one of the first mainstream amateur radios to use SDR technology instead of the older superheterodyne design.^[4] Additionally the IC-705 has multiple extra features that are useful when operating in the field. Supporting the radio's D-STAR module is a GPS receiver to allow users to send their location though the D-STAR network as well as help locate nearby repeater systems. In addition to the GPS receiver the radio supports 2.4 GHz Wi-Fi which allows users to connect their computers or tablets to the IC-705 for running digital data modes such as PSK31, Winlink, and FT8.^{[5] [6]} The radio has been praised for its size, easy to use menus, large easy to read screen and the quality of its build.^[7] Common criticisms of the radio include its lack of a built in antenna tuner and its price compared to other more powerful radios on the market.^{[8] [9]}

Specifications

Specifications of the ICOM IC-705:^[10]

• Frequency Range: Tx: 1.8 – 450 MHz (Amateur Bands Only) Rx: 30 kHz – 199.999 MHz and 400-470 MHz
• Modes of Emission: A1A (CW), A3E (AM), J3E (LSB, USB), F3E (FM)
• Impedance: BNC connector 50 Ohms, unbalanced
• Supply Voltage: 7.4 VDC Internal or 13.8 VDC External
• Current Consumption: 7.4 VDC Rx: 0.8 A Tx: 2.5 A | 13.8 VDC Rx: 0.5 A Tx: 3 A
• Case Size (WxHxD): 200×83.5×82 mm; 7.9×3.3×3.2 in
• Weight (Approx.): 1.1 kg; 2.4 lb
• Output Power: 5W Internal Battery 10W External Power Source
• Transmitter Modulation
  • SSB : Digital PSN modulation
  • AM : Digital low power modulation
  • FM : Digital phase modulation
  • DV : GMSK digital phase modulation
• Receiver System
  • 0.030 to 24.999 MHz RF Direct Sampling
  • 25.000 MHz and above Down Conversion IF Sampling

External links

• Official ICOM website
• ICOM IC-705 website

Notes and References

1. Wilson . Mark . 2021-02-01 . Product Review Icom IC-705 HF/VHF?UHF Multimode Portable Transceiver . QST . ARRL . 2022-08-12 . Steve Ford . 2022-08-13 . https://web.archive.org/web/20220813010402/https://static.dxengineering.com/global/images/technicalarticles/ico-ic-705_ng.pdf . live .
2. Web site: 2021-07-08 . Using the Icom IC-705 in the Field . 2022-08-12 . OnAllBands . en-US . 2021-07-26 . https://web.archive.org/web/20210726215705/https://www.onallbands.com/using-the-icom-ic-705-in-the-field%EF%BB%BF/ . live .
3. Web site: Handler . Jonathan . 2021-01-12 . Ham on a Hog 3: Icom IC-705 Transceiver Meets Harley-Davidson . 2022-08-12 . Ultimate Motorcycling . en-US . 2022-02-14 . https://web.archive.org/web/20220214221459/https://ultimatemotorcycling.com/2021/01/12/ham-on-a-hog-3-icom-ic-705-transceiver-meets-harley-davidson/ . live .
4. Web site: Thomas . 2021-03-01 . A review of the Icom IC-705 QRP Portable SDR Transceiver . 2022-08-12 . The SWLing Post . en-US . 2022-03-29 . https://web.archive.org/web/20220329083204/https://swling.com/blog/2021/03/a-review-of-the-icom-ic-705-qrp-portable-sdr-transceiver/ . live .
5. Web site: Technical Segment / Remote operation with the IC-705｜Oct.2020 - Monthly FB NEWS . 2022-08-12 . www.fbnews.jp . 2021-05-24 . https://web.archive.org/web/20210524155827/https://www.fbnews.jp/202010/ww02/ . live .
6. Web site: OH8STN . Julian . 2021-04-07 . Icom AH-705 Icom IC-705 Chameleon EMCOMM 3B 80M JS8Call . 2022-08-12 . OH8STN Ham Radio . en-US . 2022-04-29 . https://web.archive.org/web/20220429134215/https://oh8stn.org/blog/2021/04/07/icom-ah-705-icom-ic-705-chameleon-emcomm-3b-80m-js8call/ . live .
7. Web site: Farson . Adam . May 10, 2022 . IC-705 User Evaluation & Test Report . August 12, 2022 . November 25, 2020 . https://web.archive.org/web/20201125143057/https://www.ab4oj.com/icom/ic705/705notes.pdf . live .
8. Web site: OH8STN . Julian . 2020-12-03 . Mat-705Plus Icom IC-705 Antenna tuner . 2022-08-12 . OH8STN Ham Radio . en-US . 2022-03-31 . https://web.archive.org/web/20220331084703/http://oh8stn.org/blog/2020/12/03/mat-705plus-icom-ic-705-antenna-tuner/ . live .
9. Web site: Thomas . 2020-11-18 . Portable tuner (ATU) options for the new Icom IC-705 . 2022-08-12 . The SWLing Post . en-US . 2022-03-30 . https://web.archive.org/web/20220330131715/https://swling.com/blog/2020/11/portable-tuner-atu-options-for-the-new-icom-ic-705/ . live .
10. Web site: IC-705 All Mode Portable - Specifications - Icom America . 2022-08-12 . www.icomamerica.com . 2022-02-15 . https://web.archive.org/web/20220215041102/https://www.icomamerica.com/en/products/amateur/handheld/705/specifications.aspx . live .