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Icom 775dsp Serial Numbers

So far, serial number 02021xx is the highest I’ve seen that did not have the factory upgrades. And all 5-digit serial numbers I’ve seen did not originally have the upgrades. Later on, Icom re-designed the PA board. And from what I’ve seen, serial numbers from 0207xxx have the new board. I own two very nice late model IC-775DSP's with serial numbers 2647 and 2751. Both are fully loaded and pleasure to operate. I even sold my IC-756PROII which I might regret later but I don't think I will. I can say that the receiver is very very quiet. Sometimes I have to look at the display to make sure it is turned on.

H A N D H E L D S
  • IC-Delta1 - Hold [FUNCTION] & [A] & [CLR] buttons and turn the radio on.
  • IC-2GAT - Turn the radio on, hold [LIGHT] & [FUNCTION], turn the radio off, then turn back on. Release the buttons after the display returns to normal.
  • IC-2GXAT - Hold [FUNC] & [VMC] & [DUP] & [HI/LO] buttons and turn the radio on.
  • IC-02AT - Serial numbers below 34000: push the button on the main circuit board next to the lithium battery. Serial numbers above 34000: hold [FUNC] button and turn the radio on.
  • IC-2iA - Hold [LIGHT] & [MONITOR] buttons and turn the radio on.
  • IC-2SA - Hold [LIGHT] & [MONITOR] buttons and turn the radio on.
  • IC-2SAT - Hold [FUNCTION] & [A] buttons and turn the radio on.
  • IC-2SRA - Hold [FUNCTION] & [A] & [CLR] buttons and turn the radio on.
  • IC-P2AT - Hold [FUNCTION] & [A] buttons and turn the radio on.
  • IC-µ2AT - Hold [LIGHT] button and turn the radio on.
  • IC-03AT - Serial numbers below 34000: push the button on the main circuit board next to the lithium battery. Serial numbers above 34000: hold [FUNC] button and turn the radio on.
  • IC-3SA - Hold [LIGHT] & [MONITOR] buttons and turn the radio on.
  • IC-3SAT - Hold [FUNCTION] & [A] buttons and turn the radio on.
  • IC-4iA - Hold [LIGHT] & [MONITOR] buttons and turn the radio on.
  • IC-4GAT - Turn the radio on, hold [LIGHT] & [FUNCTION], turn the radio off, then turn back on. Release the buttons after the display returns to normal.
  • IC-4GXAT - Hold [FUNC] & [VMC] & [DUP] & [HI/LO] buttons and turn the radio on.
  • IC-04AT - Serial numbers below 34000: push the button on the main circuit board next to the lithium battery. Serial numbers above 34000: hold [FUNC] button and turn the radio on.
  • IC-4SA - Hold [LIGHT] & [MONITOR] buttons and turn the radio on.
  • IC-4SAT - Hold [FUNCTION] & [A] buttons and turn the radio on.
  • IC-4SRA - Hold [FUNCTION] & [A] & [CLR] buttons and turn the radio on.
  • IC-P4AT - Hold [FUNCTION] & [A] buttons and turn the radio on.
  • IC-µ4AT - Hold [LIGHT] button and turn the radio on.
  • IC-12AT - Hold [FUNC] button and turn the radio on.
  • IC-12GAT - Turn the radio on, hold [LIGHT] & [FUNCTION] buttons, turn the radio off, then turn back on. Release the buttons after the display returns to normal.
  • IC-24AT - Hold [FUNCTION] & [A] buttons and turn the radio on.
  • IC-32AT - Hold [FUNCTION] & [A] & [LIGHT] buttons and turn the radio on.
  • IC-Q7A - Hold [FUNC] & [BAND] & [V/M] buttons and turn the radio on.
  • IC-T2A - Hold [A] & [C] buttons and turn the radio on.
  • IC-T2H - Hold [aV] & [cT] buttons and turn the radio on.
  • IC-T21A - Full reset: hold [A] & [*] & [FUNC] buttons and turn the radio on. Partial reset: hold [A] button and turn the radio on.
  • IC-T22A - Full reset: hold [A] & [*] & [FUNC] buttons and turn the radio on. Partial reset: hold [A] button and turn the radio on.
  • IC-T41A - Full reset: hold [A] & [*] & [FUNC] buttons and turn the radio on. Partial reset: hold [A] button and turn the radio on.
  • IC-T42A - Full reset: hold [A] & [*] & [FUNC] buttons and turn the radio on. Partial reset: hold [A] button and turn the radio on.
  • IC-T7A - Hold [MR] & [VFO] & [BAND] buttons and turn the radio on.
  • IC-T8A - Hold [MR] & [VFO] & [BAND] buttons and turn the radio on.
  • IC-T81A - Hold [SQL] & [VFO] & [MR] buttons and turn the radio on.
  • IC-V21AT - Hold [F] & [A] & [*] buttons and turn the radio on.
  • IC-W2A - Hold [FUNCTION] & [A] & [CLR] buttons and turn the radio on.
  • IC-W21A - Hold [HI/LO] button and turn the radio on.
  • IC-W21AT - Hold [F] & [A] & [*] buttons and turn the radio on.
  • IC-W31A - Full reset: hold [A] & [*] & [MONI] buttons and turn the radio on. Partial reset: hold [A] button and turn the radio on.
  • IC-W32A - Full reset: hold [SQL] & [VFO] & [MR] buttons and turn the radio on. Partial reset: hold [VFO] button and turn the radio on.
  • IC-Z1A - Full reset: hold [A] & [*] & [MONI] buttons and turn the radio on. Partial reset: hold [A] button and turn the radio on.
M O B I L E S
  • IC-27A/H - Push the reset button under the top access cover.
  • IC-28A/H - Push the reset button in the aft left corner under the bottom cover.
  • IC-37A - Push the reset button under the top access cover.
  • IC-38A - Push the reset button in the aft left corner under the bottom cover.
  • IC-47A - Push the reset button under the top access cover.
  • IC-48A - Push the reset button in the aft left corner under the bottom cover.
  • IC-Delta100 - Full reset: hold [SET] & [SPCH] buttons and turn the radio on. Partial reset: hold [SPCH] button and turn the radio on.
  • IC-207H - Full reset: hold [SET] & [S.MW] buttons and turn the radio on. Partial reset: hold [V/MHz] button and turn the radio on.
  • IC-228A/H - Hold [SQUELCH/MONITOR] & [LOCK] buttons and turn the radio on.
  • IC-229A/H - Hold [SET] & [MW] buttons and turn the radio on.
  • IC-281H - Full reset: Hold [SET] & [SPCH] buttons and turn the radio on. Partial reset: hold [SPCH] button and turn the radio on.
  • IC-448A - Hold [SQUELCH/MONITOR] & [LOCK] buttons and turn the radio on.
  • IC-449A - Hold [SET] & [MW] buttons and turn the radio on.
  • IC-481H - Full reset: Hold [SET] & [SPCH] buttons and turn the radio on. Partial reset: hold [SPCH] button and turn the radio on.
  • IC-706 - Hold [UP] & [DOWN] buttons and turn the radio on.
  • IC-706MKII - Hold [UP] & [DOWN] buttons and turn the radio on.
  • IC-706MKIIG - Hold [UP] & [DOWN] buttons and turn the radio on.
  • IC-900 - Hold [MR] button, turn the power off and then on again.
  • IC-901A - Hold [CHECK] & [MW] buttons and turn the radio on.
  • IC-1200A - Hold down the tuning control and turn the power on.
  • IC-1201A - Hold [SQUELCH/MONITOR] & [LOCK] buttons and turn the radio on.
  • IC-2000H - Hold [SET] & [PGR/CS/MW] buttons and turn the radio on.
  • IC-2100H - Full reset: hold [SET] & [S.MW] buttons and turn the radio on. Partial reset: hold [V/MHz] button and turn the radio on.
  • IC-2340H - Full reset: hold [SET] & [SPCH] buttons and turn the radio on. Partial reset: hold [SPCH] button and turn the radio on.
  • IC-2350H - Full reset: hold [SET] & [S.MW] buttons and turn the radio on. Partial reset: hold [DUP] & [LOW] and turn the radio on.
  • IC-2400A - Hold [SUB VOL] & [MW] buttons and turn the power on.
  • IC-2410A/H - Hold [SET] & [MW] buttons and turn the radio on.
  • IC-2500A - Hold [SUB VOL] & [MW] buttons and turn the power on.
  • IC-2700H - Full reset: hold [SET] & [SPCH] buttons and turn the radio on. Partial reset: hold [SPCH] button and turn the radio on.
  • IC-2710H - Hold both [S.MW] buttons and turn the radio on.
  • IC-2800H - Full reset: hold 3rd buttons from the top on both sides of the LCD display and turn the radio on. Partial reset: hold 2nd buttons from the top on both sides of the LCD display and turn the radio on.
  • IC-3200A - Hold [F] button and turn the radio on.
  • IC-3210A - Hold [SQUELCH/MONITOR] & [LOCK] buttons and turn the radio on.
  • IC-3220A/H - Hold [SET] & [MW] buttons and turn the radio on.
V H F / U H F B A S E
  • IC-271A/H - Reprogram the RAM card.
  • IC-275A/H - Hold [M-CL] button and turn the radio on.
  • IC-375A - Hold [M-CL] button and turn the radio on.
  • IC-471A/H - Reprogram the RAM card.
  • IC-475A/H - Hold [M-CL] button and turn the radio on.
  • IC-575H - Hold [M-CL] button and turn the radio on.
  • IC-820H - Hold [MW] button and turn the radio on.
  • IC-821H - Hold [MW] button and turn the radio on.
  • IC-970A/H - Hold [MW] button and turn the radio on.
  • IC-1271 - Reprogram the RAM card.
  • IC-1275A - Hold [M-CL] button and turn the radio on.
H F B A S E
  • IC-77 - Clone with a computer.
  • IC-706 - Hold [UP] & [DOWN] buttons and turn the radio on.
  • IC-706MKII - Hold [UP] & [DOWN] buttons and turn the radio on.
  • IC-706MKIIG - Hold [UP] & [DOWN] buttons and turn the radio on.
  • IC-707 - Hold [MW] & [LOCK] buttons and turn the radio on.
  • IC-718 - Hold [UP] & [DOWN] buttons and turn the radio on.
  • IC-725 - Hold [FUNCTION] & [MW] buttons and turn the radio on.
  • IC-726 - Hold [FUNCTION] & [MW] buttons and turn the radio on.
  • IC-728 - Hold [FUNCTION] & [MW] buttons and turn the radio on.
  • IC-729 - Hold [FUNCTION] & [MW] buttons and turn the radio on.
  • IC-735 - No CPU reset available.
  • IC-736 - Hold [CLR] & [ENT] buttons and turn the radio on.
  • IC-737 - Hold [CLR] & [ENT] buttons and turn the radio on.
  • IC-737A - Hold [CLR] & [ENT] buttons and turn the radio on.
  • IC-738 - Hold [CLR] & [ENT] buttons and turn the radio on.
  • IC-746 - Hold [F-INP] & [M-CL] buttons and turn the radio on.
  • IC-751 - No CPU reset available.
  • IC-751A - No CPU reset available.
  • IC-756 - Hold [F-INP] & [M-CL] buttons and turn the radio on.
  • IC-756PRO - Hold [F-INP] & [M-CL] buttons and turn the radio on.
  • IC-761 - Hold [M-CLEAR] button and turn the radio on.
  • IC-765 - Hold [M-WRITE] button and turn the radio on.
  • IC-775 - Hold [CLEAR] button and turn the radio on.
  • IC-775DSP - Hold [CLEAR] button and turn the radio on.
  • IC-781 - Hold [M-CLEAR] button and turn the radio on.
R E P E A T E R S
  • IC-RP1220 - Turn the power off for a few minutes. Push S1 on the logic circuit board.
  • IC-RP1520 - Turn the power off for a few minutes. Push S1 on the logic circuit board.
  • IC-RP4020 - Turn the power off for a few minutes. Push S1 on the logic circuit board.

ANNOUNCING THE CONTESTER'S RIG

Hot News! New IC-7700 V2.20 Firmware was released on 20 July 2018. Click link below.


Fig.1: IC-7700 front panel.
Fig.3: IC-7700 rear panel.
Fig 5. IC-7700 RF BPF bank. Note the large toroidal coils.
Fig.6: IC-7700 200W PA board. Click for larger image.
Fig.7: IC-7700 spectrum scope, ±2.5 kHz span, SLOW sweep. Photo courtesy ON6SAS.

IC-7700 Overview

The new IC-7700 is a self-contained, top-performance HF/6m transceiver closely related to its 'bigger brother', theIC-7800. Its main features are:

  1. 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.

  2. 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.

  3. Quiet, built-in switch-mode mains power supply.

  4. Single HF receiver with I/Q second mixer, offering +40dBm 3rd-order intercept point*.

    • The single receiver should be seen not as a disadvantage, but as a plus. The single receiver allows no-compromise RX performance at a reasonable price; BNC sockets on the rear panel, and CI-V, allow easy connection and synchronization of a second Icom transceiver such as the 756Pro3 as a secondary receiver. Many prospective IC-7700 buyers already own an IC-756Pro3. Add the IC-7700 to your existing Pro3 for the perfect contest station; use the IC-7700 as your main transceiver, and the IC-756Pro3 as a spotting receiver.

    • Upgrade from your IC-765 or IC-775DSP, and get the benefits of a spectrum scope.

  5. Built-in 'Digi-Sel' automatic tracking RF preselector.

    • The built-in tracking preselector, and relay-switched front end, offer unrivalled strong-signal HF performance.

  6. Built-in high-speed automatic antenna tuner.

    • The tuner covers the HF and 6m bands.

  7. Selectable 15, 6 and 3 kHz roofing filters (refer to Fig. 4 above.)

    • As provided in the IC-7800. The filters are optimized for lowest IMD. Each filter is mounted on a plug-in daughterboard.

  8. 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.

  9. 7' color TFT LCD display.

    • The display includes a simulated analogue multi-function meter.

    • Rear-panel VGA socket for external video monitor.

  10. Multi-function spectrum scope with configurable resolution bandwidth (RBW).

    • RBW is configurable by selecting scope span and sweep rate.
    • The adjustable RBW permits spectral analysis of received signals. IMD products and spurs can be displayed.

    • 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.

  11. 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.

  12. IF-DSP notch filter with adjustable parameters.

    • The notch filter shape factor is selectable in 3 steps, and its maximum stopband attenuation is 70 dB.

  13. Multi-function noise blanker implemented in DSP.

  14. Separate, high-performance 6m receiver front end.

  15. Digital voice recorder.

  16. Front-panel USB ports for USB memory drive and keyboard.

    • The USB memory drive socket permits use of pocket USB memory drives. No CF card is required.

* at 50 kHz test-signal spacing.

User Manual Erratum

Contrary to the statement on p. 3-5 of the earlier IC-7700 user manual, the numerical keypad is not backlit and does notlight when theF.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:

  • Download the Ver. 2.20 upgrade and accompanying manual here.

  • This upgrade was released on 21 May 2015.

  • Note: All versions of the IC-7700 are upgradeable to Ver. 2.10.

  • View the new Ver. 2.0 and higher spectrum scope/waterfall and audio scope screen modes.

  • Watch my IC-7700 Ver. 2.0 Firmware presentation at Dayton 2014.

Rev. 12 IC-7700:

This IC-7700 version was released in April 2011. It incorporates redesigned PA200W and FILTER Units. The new PA200W uses a single STMicroelectronicsSTAC2942B 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.

Icom

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 onFebruary 11, 2008. FCC ID: AFJ300900

The officialIcom Japan IC-7700 pageandbrochure*(in English)

The Icom Canada IC-7700 page

Ic 775dsp review

The comprehensiveIC-7700 brochure*mirror

IC-7700 Upgrade Model brochure*USA/CanadaEurope

Dayton 2007 pre-releasebrochure*

Icom Japan IC-7700 pre-releasebrochure* (in English)

IC-7700User Manual V6

Icom JapanFirmware Updates page

Firmware Manuals: V2.20V2.10 V2.00 (the big one!)

RS-BA1 V1.96, compatible with IC-7700 Firmware V2.20. RS-BA1 User Manual V9.

Note on USB Memory Drives- removing proprietary formatting

Connecting an Icom Radio to a PC*, by John White VA7JW

AGC in the IC-756Pro3, IC-7600, IC-7700 and IC-7800

Icom

AGC and Noise Blanker in an IF-DSP Receiver

IC-7700 Noise Blanker Demo: 20m SSB signal with severe impulse noise.NB offNB 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 JapanIC-7700 Promotion Movie (in English)

My IC-7700 User Review & Test Report

Noise Power Ratio (NPR) Testing of HF Receivers*including IC-7700

IC-7700 NPR Test Data*

Icom 775dsp Mars Mod

Icom ic 775dsp for sale

IC-7700 MW Broadcast Band Tests

On-Air IC-7700 Microphone Trials with VA7JW and VA7OJ

Glenn McNeil, VK4BG: IC-7800 PA Power Device Replacement Notes. (Also applicable to the IC-7700)

Icom 775dsp Manual

Use the IC-7700 as a bench spectrum analyser!

The IC-7700 Spectrum Scope: RBW & Grass Levels

My friend Matt KK5DR'sIC-7700 User Review

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'?

Icom 775dsp Ebay

* PDF document.