
( Brand: Yaesu ), ( Manufacturer Part Number: IC-735 ), ( Type: Manual ), ( Country Of Origin: United States )
The **Yaesu IC-735** and **Icom IC-V80** (often mistakenly referred to as the "IC-735" in older documentation) are iconic high-performance amateur radio transceivers from the late 1980s and early 1990s, designed for serious hobbyists and operators seeking reliable, all-band coverage with exceptional clarity and flexibility. The **1990 instruction manual** for these units particularly the **Yaesu IC-735** (a 1989 model) and the **Icom IC-V80** (a 1990 successor to the IC-V70) serves as a comprehensive guide to mastering their advanced features, which include **full 160-meter to 10-meter HF coverage**, **SSB, CW, and AM modes**, **VFO tuning with direct digital frequency entry (DDE)**, and **a robust front-panel layout optimized for intuitive operation**. Both radios embody the engineering prowess of their respective manufacturers, offering **solid-state construction**, **adjustable RF gain**, and **a built-in speaker and microphone** for hands-free operation, making them ideal for portable or base station use. The manual meticulously details the **front-panel controls**, including the **VFO/ALE switches**, **S-meter**, and **power amplifier tuning adjustments**, while also explaining the **internal circuitry** such as the **mixer, IF stages, and audio processing** to help operators troubleshoot and optimize performance. Additionally, it covers **antenna considerations**, **transmit power settings**, and **accessory compatibility**, ensuring users can fully leverage features like **the built-in CW keyer** or **external speaker/mic connections**. Whether used for **long-distance DXing**, **contesting**, or **local net operations**, these transceivers remain prized for their **durability, clarity, and adaptability**, and the **1990 manual** remains an essential reference for understanding their full potential.
### Pros and Cons of Buying a Used Yaesu IC-735 or Icom IC-HF Transceiver (1990 Instruction Manual)
#### **Yaesu IC-735 (1990 Model)**
The Yaesu IC-735 is a classic HF (High Frequency) transceiver known for its reliability and performance in the amateur radio community. Below are its key advantages and disadvantages.
**Pros:**1. **Reliability and Durability** The IC-735 is well-regarded for its robust construction and long-term reliability. Many units from the 1990s are still operational today, especially if well-maintained.
2. **Excellent Performance** It offers strong signal handling, good sensitivity, and clear audio quality, making it suitable for both local and DX (long-distance) communications.
3. **Versatile Operating Modes** Supports multiple modes, including CW (Morse code), SSB (Single Sideband), AM, and FM, along with USB/LSB operation, which is useful for different types of radio communication.
4. **User-Friendly Interface** The front panel is intuitive, with clear labeling and straightforward controls, making it accessible for both beginners and experienced operators.
5. **Compatibility with Older Gear** Works well with vintage radios, antennas, and accessories, which can be advantageous for collectors or those maintaining legacy equipment.
6. **Strong Resale Value** Due to its reputation, a well-preserved IC-735 can still fetch a decent price in the used market.
7. **No Modern Dependencies** Unlike newer radios that may require computer interfaces or software, the IC-735 operates independently, reducing potential compatibility issues.
**Cons:**1. **Aging Electronics** Components like capacitors, resistors, and transistors may degrade over time, requiring occasional maintenance or replacement. This can be a concern if the unit has not been serviced regularly.
2. **Limited Digital Features** Unlike modern transceivers, it lacks built-in digital modes (e.g., PSK31, FT8) or computer interfaces, which are increasingly important for modern amateur radio operations.
3. **No Built-in Memory** Memory channels must be manually programmed, which can be cumbersome compared to digital radios with stored presets.
4. **Power Requirements** Some older units may not be as efficient with power consumption, and they may require higher wattage power supplies if modified or upgraded.
5. **Parts Availability** While Yaesu still supports older models, finding replacement parts (especially for less common components) can be challenging compared to newer radios.
6. **No Touchscreen or Digital Display** The analog display and knobs can be less precise than modern digital interfaces, which offer better readability and tuning accuracy.
7. **Potential for Modifications** Some owners may have made unauthorized modifications (e.g., power upgrades), which could void warranties or introduce reliability issues if not done properly.
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#### **Icom IC-HF (Assuming IC-HF1 or IC-HF2 from the 1990s)**
The Icom IC-HF series (particularly the IC-HF1 and IC-HF2) were also popular in the 1990s and share many similarities with the Yaesu IC-735 in terms of performance and build quality. Below are their pros and cons.
**Pros:**1. **High-Quality Audio** Icom radios are often praised for their excellent audio clarity, which is crucial for SSB and CW operations.
2. **Rugged Construction** Icom transceivers from this era are known for their durability, with metal chassis and solid build quality.
3. **Good Sensitivity and Selectivity** These radios perform well in noisy environments, making them reliable for weak-signal work.
4. **User-Friendly Design** The controls are well-laid out, and the front panel is easy to navigate, even for beginners.
5. **Compatibility with Antennas** Works seamlessly with a variety of antennas, including dipole, vertical, and beam antennas, which are common in HF setups.
6. **Strong Community Support** Icom has a loyal user base, and there is ample documentation, forums, and aftermarket support for troubleshooting and upgrades.
7. **No Modern Over-Reliance** Like the Yaesu, it does not require a computer or software for basic operation, making it a self-contained solution.
**Cons:**1. **Outdated Technology** Lacks modern features such as built-in digital signal processing (DSP), which can enhance weak-signal reception in contemporary radios.
2. **Limited Bandwidth** The IF (Intermediate Frequency) bandwidth may not be as wide as newer radios, which can affect performance in crowded bands.
3. **No Built-in Memory Channels** Programming memory channels is manual, which can be less convenient than digital radios with stored presets.
4. **Potential for Drift** Older analog radios can experience frequency drift over time, requiring periodic calibration.
5. **Parts and Service Challenges** While Icom still supports older models, finding replacement parts or authorized service centers may be difficult compared to newer models.
6. **No Touchscreen or Digital Display** The analog interface can be less precise than modern digital displays, which offer better tuning accuracy and readability.
7. **Power Supply Considerations** Some older Icom radios may require specific power supplies, and modifications (e.g., power upgrades) can be tricky and may void warranties.
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### **Comparison Between Yaesu IC-735 and Icom IC-HF (1990s Models)**
**Aspect** **Yaesu IC-735** **Icom IC-HF (e.g., IC-HF1/2)**
-------------------------- ------------------------------------------ ------------------------------------------
**Build Quality** Excellent, robust metal chassis Excellent, slightly more refined
**Audio Quality** Very good, clear SSB/CW Slightly better audio clarity
**Ease of Use** Intuitive, straightforward controls Very user-friendly, well-organized
**Digital Features** None (pure analog) None (pure analog)
**Memory Channels** Manual programming Manual programming
**Parts Availability** Good, but some components may be rare Good, but less common than newer models
**Price** Moderate to high (depends on condition) Similar to Yaesu, but slightly rarer
**Modern Upgrades** Possible (e.g., DSP upgrades) Possible (e.g., digital interfaces)
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### **Conclusion**
Both the Yaesu IC-735 and Icom IC-HF (1990s models) are excellent choices for amateur radio operators who prioritize reliability, analog performance, and simplicity. They are well-suited for:
- **DX (long-distance) communication** due to their strong signal handling.
- **CW and SSB operations**, where analog clarity is preferred.
- **Operators who enjoy "old-school" radio** and do not require modern digital features.
- **Budget-conscious buyers** who want a high-quality used radio without the cost of a new one.
However, they are **not ideal** for:- **Operators who rely on digital modes** (e.g., FT8, PSK31, DMR).
- **Those who prefer digital displays, touchscreens, or computer interfaces**.
- **Users who want plug-and-play compatibility with modern software or repeaters**.
- **Beginners who may benefit from more intuitive digital interfaces**.
If you are purchasing one of these radios, **condition is critical**. Look for:- **No signs of internal corrosion** (especially in capacitors).
- **Functioning knobs, buttons, and display**.
- **A clean power supply and cables**.
- **Documentation (e.g., manual, service records)** to verify maintenance history.
If you plan to use the radio for **casual or local communication**, a well-maintained IC-735 or IC-HF will serve you well for years. If you are interested in **modern digital modes or advanced features**, consider pairing it with a modern digital transceiver or upgrading it with aftermarket DSP modules.
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### **Recommendation**
1. **Buy with Caution**: If you decide to purchase a used Yaesu IC-735 or Icom IC-HF, **inspect it thoroughly** or have it professionally serviced before use. Focus on radios with **documented maintenance history** to avoid hidden issues.
2. **Consider a Refurbished Unit**: Some sellers offer professionally refurbished units with warranties, which can reduce risk.
3. **Pair with Modern Accessories**: While the radio itself is analog, you can enhance its usability with:- A **modern antenna tuner** (e.g., MFJ-989, Elecraft K3).
- A **digital signal processor (DSP) upgrade** (e.g., Yaesu DSP-1 for the IC-735).
- A **computer interface** (e.g., for logging or digital modes via separate software).
4. **Learn Basic Maintenance**: Familiarize yourself with **capacitor replacement, tube servicing (if applicable), and frequency calibration** to keep the radio running smoothly.
5. **Explore Alternatives**: If you want a **modern analog experience**, consider newer analog-only radios like the **Icom IC-706MKIIG** or
Please see photos for personal cosmetic evaluation and specifics. No apparent writing on pages but still possible. Up for sale is a OEM Icom IC-735 HF All Band Transceiver Instruction Manual. 46 page manual with separate fold out schematic.
In good usable condition - some shelf wear present. Pages look good and staples intact.