The new IC-7700 is a self-contained, top-performance HF/6m transceiver closely related to its "bigger brother", the IC-7800. Its main features are:
Two independent DSP units.
One DSP (TI TMS320C6727B) is dedicated to the transmitter and receiver, and the other (TI TMS320C6720B) to the spectrum scope. These are of a later generation than the TMS320C6713 used in the IC-7800.
HF/6m transmitter with a MOSFET PA delivering 200W output at full duty cycle.
The PA utilizes a pair of MRF150 MOSFET power devices.
The new Rev. 12/13 PA employs a single ST Micro STAC2942 output device.
Quiet, built-in switch-mode mains power supply.
Single HF receiver with I/Q second mixer, offering +40dBm 3rd-order intercept point*.
Upgrade from your IC-765 or IC-775DSP, and get the benefits of a spectrum scope.
Built-in "Digi-Sel" automatic tracking RF preselector.
The built-in tracking preselector, and relay-switched front end, offer unrivalled strong-signal HF performance.
Built-in high-speed automatic antenna tuner.
The tuner covers the HF and 6m bands.
As provided in the IC-7800. The filters are optimized for lowest IMD. Each filter is mounted on a plug-in daughterboard.
Precision OCXO with ±0.05ppm frequency stability and 10 MHz Reference I/O jack
The precision OCXO with 10 MHz REF I/O allows the IC-7700 to clock other equipment, or to be clocked from a higher-level master clock source.
7" color TFT LCD display.
The display includes a simulated analogue multi-function meter.
Rear-panel VGA socket for external video monitor.
Multi-function spectrum scope with configurable resolution bandwidth (RBW).
Fig. 6 is a typical scope screenshot. The green trace is the real-time spectral display; the blue trace is the peak-hold display. Note the low "grass" level in the absence of signals.
Built-in RTTY/PSK31 modem requiring only a USB keyboard.
The built-in RTTY/PSK31 modem allows use of the IC-7700 as a complete digimode terminal, requiring only a keyboard. This is great for semi-portable operation (e.g. Field Day) or when shack space is at a premium.
IF-DSP notch filter with adjustable parameters.
Multi-function noise blanker implemented in DSP.
Separate, high-performance 6m receiver front end.
Digital voice recorder.
Front-panel USB ports for USB memory drive and keyboard.
* at 50 kHz test-signal spacing.
Contrary to the statement on p. 3-5 of the earlier IC-7700 user manual, the numerical keypad is not backlit and does not light when the F.INP key is pressed. This has been corrected in all newer editions of the manual, from ENG_1 onwards. The correct procedure reads as follows:
Icom Japan IC-7700 Ver. 2.10 Firmware Upgrade:
Download the Ver. 2.10 upgrade and accompanying manual here.
This upgrade was released on 21 May 2015.
Note: The current IC-7700 upgrade model is identical to the previous model; the new Ver. 2.10 firmware is the only difference. Thus, all versions of the IC-7700 are upgradeable to Ver. 2.10.
Watch my IC-7700 Ver. 2.0 Firmware presentation at Dayton 2014.
This IC-7700 version was released in April 2011. It incorporates redesigned PA200W and FILTER Units. The new PA200W uses a single STMicroelectronics STAC2942B dual MOSFET power device in its output stage. The serial number prefix begins with "1" e.g. 1201234 (US/Canada), 1301234 (EU), 1701234 (UK).
The previous serial number ranges begin with "0" e.g. 0201234 (US/Canada), 0301234 (EU), 0701234 (UK), and have the earlier PA200W (2 X MRF150) and FILTER Units.
Q: Why was Dual Watch omitted?
A: Provision of Dual Watch would most likely have pushed the price well above the USD 6K target.
Q: Then how can I monitor my transmit frequency in split operation?
A: By pressing the XFC (Transmit Frequency Check) button.
The IC-7700 received FCC certification on February 11, 2008. FCC ID: AFJ300900
The official Icom Japan IC-7700 page and brochure* (in English)
Icom America's IC-7700 page
The Icom Canada IC-7700 page
The comprehensive IC-7700 brochure* mirror
IC-7700 Upgrade Model brochure* USA/Canada Europe
Dayton 2007 pre-release brochure*
Icom Japan IC-7700 pre-release brochure* (in English)
IC-7700 User Manual V6
Icom Japan Firmware Updates page
IC-7700 V2.10 Firmware Update
Firmware Manuals: V2.10 V2.00 (the big one!) We strongly recommend downloading & reading both these manuals when upgrading.
RS-BA1 V1.80, compatible with IC-7700 Firmware V2.10. RS-BA1 User Manual V6.
Note on USB Memory Drives - removing proprietary formatting
Some IC-7700 Interior Views
Connecting an Icom Radio to a PC*, by John White VA7JW
AGC in the IC-756Pro3, IC-7600, IC-7700 and IC-7800
AGC and Noise Blanker in an IF-DSP Receiver
IC-7700 Noise Blanker Demo: 20m SSB signal with severe impulse noise. NB off NB on
The IC-7700 Drive Gain Control
The IC-7700/IC-7800 "Digi-Sel" Preselector
The IC-756Pro3 as 2nd receiver with the IC-7700
View or download the 15-minute Icom Japan IC-7700 Promotion Movie (in English)
Visit Lidio, IØGEJ's IC-7700 Page
The IC-7700 at the Pescara Ham Fair, Italy, Nov. 2007 (courtesy IØGEJ)
My IC-7700 User Review & Test Report
Noise Power Ratio (NPR) Testing of HF Receivers* including IC-7700
IC-7700 MW Broadcast Band Tests
On-Air IC-7700 Microphone Trials with VA7JW and VA7OJ
Frank, DF9VH's IC-7700 PA Repair Description
Biasing MOSFET Power Transistors
Bob W6OPO's PA Stress Test
Glenn McNeil, VK4BG: IC-7800 PA Power Device Replacement Notes. (Also applicable to the IC-7700)
Use the IC-7700 as a bench spectrum analyser!
The IC-7700 Spectrum Scope: RBW & Grass Levels
My friend Matt KK5DR's IC-7700 User Review
IC-7700 eHam Reviews
IC-7700 Presentation at North Shore ARC, North Vancouver BC, October 2008
My IC-7700 Meets a K3 (Rev. 2, July 2011) by Jeff Smith VE1ZAC
Comparing the IC-7700 and IC-7800*, by George Bethea K5JZ
How close were we with the "IC-7X00"?
* PDF document.
Copyright © 2007-2013, A. Farson VA7OJ/AB4OJ. IC-7700 information courtesy Icom Inc. Images courtesy Icom Inc. except where noted.
Last updated: 02/01/2018