ELECRAFT RFI-ICOM-7800 Ham Radio Transceiver K4 Rfi 1-60

( Brand: Elecraft ), ( Manufacturer Part Number: RFI-ICOM-7800 ), ( Type: Ham Radio Transceiver ), ( Band: Fm ), ( Color: Black )

Review ELECRAFT K4 Ham Radio Transceiver Rfi Range 1-60 Mhz

The **Elecraft K3 # (with RFI-ICOM 7800 upgrade kit)** represents a pinnacle of modern amateur radio engineering, blending unparalleled performance, versatility, and precision in a compact yet robust package. Designed for serious enthusiasts, contesters, DXers, and operators demanding the highest fidelity in signal handling, this transceiver redefines what is possible in the shack. At its core, the K3 is a **direct-sampling, software-defined radio (SDR) transceiver** that covers the entire spectrum from **160 meters to 6 meters (1.8 54 MHz)**, with an optional **60-meter upgrade kit** (part of the RFI-ICOM 7800 compatibility package) extending coverage to 5 MHz. Its **dual-conversion architecture** ensures exceptional selectivity, eliminating the need for traditional IF filters while delivering crystal-clear reception even in crowded bands. The K3 s **16-bit ADCs and DACs** provide dynamic range and audio quality that rivals dedicated SDRs, making it ideal for weak-signal work, digital modes like FT8, PSK31, and CW, as well as traditional analog voice and Morse code operation.

The **RFI-ICOM 7800 upgrade kit** enhances the K3 s capabilities by integrating seamless compatibility with ICOM s legendary 7800 series radios, particularly the **ICOM IC-7800**, a high-performance HF/6M transceiver known for its robust construction and advanced features. This kit allows operators to leverage the K3 s software-defined flexibility while benefiting from the 7800 s **solid-state design, superior RF shielding, and robust power handling**, making it an excellent choice for those who want the best of both worlds modern SDR software with the reliability of a proven analog transceiver. The upgrade kit includes **custom firmware and calibration files** that optimize the K3 s performance when paired with ICOM s hardware, ensuring smooth operation across all bands, including the coveted **60-meter band**, which is often overlooked in standard K3 configurations.

Beyond its technical specifications, the K3 is a **shack workhorse** designed for both **contesting and DXing**. Its **full-size, high-resolution color touchscreen display** (when paired with the optional K3S or K3S upgrade) provides intuitive navigation through menus, filters, and digital modes, while the **built-in DSP (Digital Signal Processing)** allows for real-time noise reduction, bandwidth adjustment, and adaptive filtering. The transceiver s **100-watt linear amplifier compatibility** ensures strong signals even on challenging propagation paths, and its **USB and Ethernet connectivity** enable seamless integration with logging software, remote operation via the internet, and integration with modern shack automation systems. Whether operating in **SDR mode with FlexRadio s SmartSDR software** or using **Elecraft s intuitive K3 software**, the transceiver offers unmatched flexibility, allowing operators to tailor their experience to their specific needs from contesting with multiple bands and modes to relaxed DXing sessions with precise signal identification.

For those who demand **portability without compromise**, the K3 s **compact yet rugged chassis** (especially when paired with the 7800 s robust construction via the upgrade kit) makes it an excellent choice for field day operations, portable setups, or even mobile use in a well-shielded environment. The **optional K3S or K3S upgrades** further enhance its appeal by adding **full-color touchscreen control, additional memory channels, and expanded digital mode support**, making it a future-proof investment. The **RFI-ICOM 7800 compatibility** ensures that users retain the reliability and build quality of a proven transceiver while gaining the software-defined advantages of the K3, creating a hybrid system that appeals to both traditionalists and innovators alike.

In summary, the **Elecraft K3 with RFI-ICOM 7800 upgrade kit** is more than just a transceiver it is a **powerful, adaptable platform** that empowers operators to explore every corner of the amateur radio spectrum with precision, clarity, and efficiency. Whether used for **contesting, DXing, emergency communications, or experimental digital modes**, this system delivers an unmatched combination of performance, flexibility, and durability, solidifying its place as one of the most capable and versatile HF transceivers available today.

### **Pros and Cons of Buying an Elecraft K3, Icom IC-7800, or Yaesu FT-60 (with RFI/Interference Issues)**

#### **Pros of These High-End Transceivers**

1. **Performance and Capabilities**

- **Elecraft K3**: A direct sampling SDR (Software Defined Radio) with exceptional dynamic range, low noise, and excellent RF performance. It covers 100 kHz to 30 MHz with full-duplex operation, making it ideal for contesting, DXing, and weak-signal work. The K3 s analog front end and digital signal processing provide superior selectivity and clarity.

- **Icom IC-7800**: A full-featured, high-end transceiver with a wide frequency range (100 kHz to 54 MHz) and excellent RF power output (up to 160W on HF). It includes built-in digital modes (FT4, FT8, JT65), a large color display, and robust construction. The IC-7800 is highly regarded for its reliability and versatility.

- **Yaesu FT-60**: A modern, compact transceiver covering 1.8 MHz to 54 MHz with digital modes (FT4, FT8) and a touchscreen interface. It s designed for portability and ease of use, making it a great choice for field operations and casual operators.

2. **Digital Mode Support**

- All three radios support modern digital modes (FT8, FT4, JT65), which are essential for weak-signal communication and DXing. The IC-7800 and FT-60 have built-in digital functionality, while the K3 requires a separate computer for full digital operation.

3. **Build Quality and Durability**

- Elecraft and Icom are known for their robust construction. The K3 and IC-7800 are built to last, with high-quality components and shielding to minimize interference. Yaesu s FT-60 is also well-built, though slightly less rugged than the others.

4. **Software and Flexibility**

- The K3 s SDR architecture allows for extensive software tuning and customization, appealing to advanced users. The IC-7800 and FT-60 also offer software-defined features, including built-in digital mode support and touchscreen controls.

5. **Community and Support**

- All three brands have strong ham radio communities with extensive documentation, forums, and aftermarket support. Elecraft and Icom, in particular, have long-standing reputations for customer service and technical support.

---

#### **Cons of These Transceivers**

1. **Cost**

- **Elecraft K3**: $2,500 $3,000 (used models may be cheaper).

- **Icom IC-7800**: $3,500 $4,000 new; used models can range from $2,000 $3,000.

- **Yaesu FT-60**: $1,500 $2,000 new; used models may be available for $1,000 $1,500.

- For hobbyists on a budget, these may be overkill unless you specifically need their advanced features.

2. **RF Interference (RFI) and Noise Issues**

- High-end radios like these are sensitive to RF interference, which can be a common problem in modern environments filled with digital devices, Wi-Fi routers, and other electronic noise. If you live in an area with significant RF pollution, you may need additional shielding, ferrite beads, or a dedicated antenna system to mitigate interference.

- The K3, in particular, is known for its susceptibility to RFI due to its direct sampling design. Users often report needing to invest in high-quality coax, proper grounding, and shielding to avoid issues.

3. **Complexity**

- The K3 and IC-7800 require a steeper learning curve due to their advanced features, digital modes, and software integration. Beginners may find them overwhelming compared to simpler, analog-only radios like the Yaesu FT-60 or Icom IC-705.

- The FT-60, while more user-friendly, still offers a lot of features that may require time to master.

4. **Power Consumption**

- These radios draw significant power, especially the IC-7800, which can consume up to 100W or more during operation. This may require a dedicated power supply or careful consideration of battery life for portable use.

5. **Maintenance and Repairs**

- While generally reliable, high-end radios can be expensive to repair if something goes wrong. Elecraft and Icom have good repair programs, but parts and labor costs can add up over time.

6. **Portability Limitations**

- The K3 and IC-7800 are not designed for portable operation. They require a stable power source and may not be practical for field day or hiking. The FT-60 is more portable but still heavier than ultra-portable radios like the Yaesu FT-2DR or Elecraft KX3.

---

#### **Addressing RFI/Interference Issues**

- **Use high-quality coaxial cable** (e.g., LMR-400 or LMR-600) with proper connectors to minimize signal loss and noise.

- **Ground your station properly** to reduce noise pickup. This includes a good earth ground and proper antenna grounding.

- **Shield your radio and connections** with ferrite beads, RF chokes, and metal enclosures if necessary.

- **Avoid placing the radio near sources of RF interference** (e.g., routers, computers, or other electronic devices).

- **Use a dedicated antenna tuner** to ensure proper impedance matching and reduce reflected power.

- **Consider a separate antenna system** with good isolation from other electronics in your shack.

---

### **Conclusion and Recommendation**

#### **Who Should Buy These Radios?**

- You are an advanced operator who values superior RF performance, dynamic range, and SDR flexibility.

- You prioritize weak-signal work, contesting, or digital modes (with a computer).

- You are willing to invest in proper shielding and RFI mitigation to avoid interference issues.

- Budget is not a major concern, and you want a radio that will last for decades with proper care.

- You want a high-end, all-in-one transceiver with built-in digital modes and a large frequency range.

- You prefer a more traditional analog interface with modern digital features.

- You need a reliable, robust radio for both home and portable use (though it s still not ultra-portable).

- You are willing to pay a premium for Icom s reputation for quality and support.

- You want a modern, user-friendly radio with digital modes and a touchscreen interface.

- You prioritize portability and ease of use without sacrificing too much performance.

- You are on a slightly tighter budget but still want a high-quality HF transceiver.

- You plan to use it for casual operation, field day, or digital mode contests.

#### **Who Should Avoid These Radios?**

- **Beginners** who are overwhelmed by the complexity of digital modes, SDR, or advanced features. Start with a simpler radio like the Icom IC-705, Yaesu FT-60R, or Elecraft KX3.

- **Operators on a tight budget** who can achieve similar results with used or mid-range radios (e.g., Icom IC-7300, Yaesu FT-1000MP, or FlexRadio 6000).

- **Those in high-RFI environments** who are unwilling to invest in proper shielding, coax, and grounding to mitigate interference. Consider a more robust radio like the Icom IC-7610 or a used K3 with proven RFI solutions.

#### **Final Recommendation**

If RFI is a significant concern in your operating environment, **prioritize proper station setup** (coax, grounding, shielding) before investing in a high-end radio. The **Icom IC-7800** is the most balanced choice for most serious operators, offering a blend of analog and digital features with robust performance. The **Elecraft K3** is the best for purists who want unmatched RF performance but requires more effort to keep interference-free. The **Yaesu FT-60** is ideal for those who want a modern, portable, and user-friendly option without the complexity of the K3.

For new operators, consider starting with a used K3 or IC-7800 if you can find one at a reasonable price, but be prepared to address RFI challenges. If budget is a concern, a used Icom IC-7300 or Yaesu FT-1000MP can provide excellent performance at a lower cost.

Details:

Everything you see in the pictures is what included this lot. Not saying it won't need adjustments but, looks like a nice clean unit. Item was tested prior to selling it me. Photos are the best.

I did purchase from a local operator. I do a lot of business with them and they always have well cared for gear. Items may need a more in depth cleaning. Please look at all pictures closely before purchasing.

I am not an operator and don't have the knowledge to fully test myself.

part #: rfiicom7800 prices

• $1100.00-$1300.00

specifications hamamateuradio:

• brand: Elecraft
• mpn: Rfi-icom-7800
• type: Ham Radio Transceiver
• band: Fm
• color: Black

general hamamateuradio:

• Radio Communication > Ham, Amateur Radio > Ham Radio Transceivers
• condition: Used

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• cost: $64.99
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• class: Standard
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• availability: In Stock
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• options: Ship-to-home
• quantity: 1
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• started: March 23, 2026

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seller hamamateuradio:

• rating: 99.3%
• # reviews: 14223
• city: Federal Way, Washington

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