I just bought an early unit (serial number below 1200) which was never used on transmit, only the receiver. I knew from prior research before buying that there were a number of factory upgrades done during production years, but have not found any kind of list describing all the problems and fixes on one webpage.
Some posters on other forums say rigs after numbers 1500, 1800, 2000 and even 2200 were corrected, but don't really say what was corrected.
Can anyone tell me what the problems were and what was the fix (or point me to a link)? The rig will be here next week so I can't say if there is anything I notice wrong with mine yet.
Thanks for any help!
Very Late model Icom IC-775DSP HF Transceiver in Very Nice shape in the Original boxes with the Original Operators manual, Original maintenance guide, Icom hand microphone, and AC power cord. Very Late serial number 02521! Cabinet is in EXCELLENT shape, a GREAT looking and performing radio. This Great high power transceiver boasts 200+ watts output and has great audio. Reception is Superb, has built in DSP for super quiet and sensitive reception. This radio has a built in automatic antenna tuner to match your long wire or pretty much whatever antenna system you are using. Has a built in heavy duty power supply as well, works on 120VAC (85-135VAC) or 240VAC (187-265VAC). Has several built in filters (can accommodate more optional filters as well), here are some specifications: · DSP (Digital Signal Processing) Tx/Rx, 200 W Stable Output Power, All mode, including PSK31, Built-in Heavy Duty Power Supply, Fully Adjustable DSP Noise Reduction, Level/Width Variable Noise Blanker, · PSN Modulation, Audio Peak Filter, · Dual Watch (2 Receivers), Dual Tuning Knobs, · Twin Pass Band Tuning , Power MOS FET PA Section, · Filter flexibility! The IC-775DSP can accommodate up to 11 filters! 6 filters come installed, and the rig can accommodate up to 5 optional filters, Electronic Keyer , · Memory Keyer, CW Pitch Control, CW Reverse, Two Key Jacks, Large, Easy-to-Read Display with Amber Background. Durable, Continuous Duty Cycle Transmitter. Frequency Coverage: Receive: 100khz-29.990 MHz. Transmit: 1,800-1.999999 MHz, 3,500-3.999999 MHz, 7,000-7,3000 MHz, 10,100-10,150 MHz, 14,000-14,350 MHz, 18,068-18,168 MHz, 21,000-21,450 MHz, 24,890-24-990 MHz, 28,000-29,700 MHz. Number of memory channels: 101(99 regular, 2 scan edges). Antenna impedance: 50 ohms nominal. Frequency stability: Less than ±200 Hz from 1 min. After that rate of stability less than ±30 Hz/hr. At + 25°C (+77°F). Temperature fluctuations O°C to +50°C (+32°F to + 122°F) less than ±350 Hz. FM: Triple conversion superheterodyne. The item “Icom IC-775DSP deluxe HF transceiver VERY Late model, With Extra faceplate” is in sale since Thursday, January 12, 2017. This item is in the category “Consumer ElectronicsRadio CommunicationHam, Amateur RadioHam Radio Transceivers”. The seller is “hamguy123″ and is located in Hollywood, Florida. This item can be shipped to United States. - Brand: Icom
- Model: IC-775DSP
- Frequency Band(s): HF
- Supported Modes: AM
Icom 775 Mods - Courtesy of SV3EAO - Fotis Visilias (Enlargable Photos At Bottom Of Page) First of all the mod takes place only on the component's side of pcb. The diode in the black image is 1N 4148 and the parallel capacitor is a 10nf (use plastic or polyester). The switch is on-off type. The relay is a small type PCB 12V like Omron. Kenwood TS-870, serial no. You to interpret the numbers and graphs. DSP competitors, the ICOM IC-775DSP.
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