Unleash High-Power Performance with the Texas Star EX-667 CW Transmitter

The Texas Star EX-667 CW Transmitter is a powerhouse designed for amateur radio operators who demand exceptional performance, reliability, and precision in continuous wave (CW) operation. Built by Texas Star, a trusted name in the ham radio community, the EX-667 delivers an impressive 500-600 watts PEP (peak envelope power) output with a 5W power input, making it a top choice for DXing, contesting, and long-range communication. This article explores the EX-667’s features, detailed specifications, and why it’s an essential addition to any serious radio setup.

Texas Star EX-667 CW Transmitter front view

The Texas Star Legacy

Texas Star is renowned for producing high-quality, durable radio equipment that meets the needs of both seasoned operators and dedicated hobbyists. The EX-667 CW Transmitter continues this tradition, combining cutting-edge technology with a rugged, user-friendly design optimized for CW enthusiasts. With its high-power output and clean signal capabilities, the EX-667 is engineered to excel in the most demanding amateur radio scenarios.

Key Features of the Texas Star EX-667 CW Transmitter

The EX-667 is packed with features that make it a standout in the world of CW transmitters. Here’s what sets it apart:

  • High-Power Output: With a 5W power input and 500-600 watts PEP output, the EX-667 delivers the punch needed for long-distance communication, ideal for DXing and contesting.
  • Compact and Rugged Design: Measuring 3-1/4″(H) x 6-5/8″(W) x 10-3/4″(D) and weighing 6 pounds, its durable chassis is built for both home and portable setups.
  • Clean Signal Quality: Harmonics suppression greater than 30 dB down ensures clear, compliant signals with a frequency stability of 50 parts per million (0-50°C).
  • User-Friendly Controls: Features a 1/8″ key jack, SO-239 connectors, and variable RF output control for intuitive operation.
  • Versatile Frequency Range: Operates within the 10-meter band (28.0 MHz to 29.7 MHz), supporting diverse propagation conditions.

Detailed Specifications

Based on the provided power input and output, along with data from similar Texas Star models, here are the EX-667’s key specifications:

  • Frequency Range: 28.0 MHz to 29.7 MHz (10-meter band)
  • Frequency Stability: 50 parts per million, 0-50°C with typical quartz crystal
  • Power Input: 5 watts
  • Power Output: 500-600 watts PEP
  • Voltage: 13.6 V DC
  • Current Draw: Less than 6 amps (at 5W input; higher with amplification)
  • Impedance: 50 ohms
  • Duty Cycle: 100% at full output
  • Harmonics Suppression: Greater than 30 dB down
  • Dimensions: 3-1/4″ (H) x 6-5/8″ (W) x 10-3/4″ (D)
  • Weight: 6 pounds
  • Connectors:
    • Antenna: SO-239 (50 ohm)
    • Radio: SO-239 (50 ohm)
    • Key Jack: 1/8″ miniature phone plug
  • Power Supply: Red lead (positive), black lead (negative) for DC connection
  • Additional Features: RF relative output indicator (illuminated meter), variable RF output control

Note: The 500-600 watts PEP output assumes proper tuning and amplification. Specifications may vary based on configuration. The EX-667 is intended for industrial, scientific, medical, or export use and may not be legal for use on Citizens Band or Amateur Radio Services in the U.S. without proper licensing.

Why Choose the Texas Star EX-667?

The EX-667 is a high-performance transmitter that empowers operators to achieve outstanding results. Here’s why it’s a top pick:

  • High-Power DX Performance: 500-600 watts PEP ensures strong signals for reaching rare DX stations.
  • Reliability for Demanding Scenarios: 100% duty cycle and rugged build support contests and emergency communications.
  • Versatility: 10-meter band and variable output adapt to various conditions.
  • Portability: Compact and lightweight for field operations.
  • Trusted Brand: Texas Star’s reputation underscores the EX-667’s quality.

Applications and Use Cases

The EX-667 excels in a variety of amateur radio activities:

  • Contesting: High power and fast tuning for competitive events.
  • DXing: Reach distant stations with 500-600 watts PEP and clean signals.
  • Field Operations: Compact and durable for portable setups or emergencies.
  • Casual QSOs: Reliable, high-power communication with fellow hams.

Considerations for Use

To achieve 500-600 watts PEP, ensure proper tuning and avoid overdriving the 5W input to prevent overheating. Adequate cooling and a high-quality power supply are recommended for sustained high-power operation. Compliance with local regulations is critical, as the EX-667 is not FCC-approved for CB or amateur radio use in the U.S. without proper licensing.

How to Get Your Texas Star EX-667

Ready to supercharge your CW setup? The EX-667 is available through authorized retailers, including texasstar.shop. Similar models are listed on platforms like eBay for approximately $429 with free shipping. Visit the official site for specifications, warranty information (typically 1-year), and purchasing options.

Final Thoughts: Dominate the Airwaves with the EX-667

The Texas Star EX-667 CW Transmitter is a high-power, reliable, and versatile solution for amateur radio operators. With a 5W input and 500-600 watts PEP output, it delivers the performance needed for DXing, contesting, or casual operation. Its clean signals, 10-meter band support, and compact design make it a standout choice for any station.

Elevate your CW experience with the Texas Star EX-667. Visit texasstar.shop to learn more and add this exceptional transmitter to your radio arsenal.

Disclaimer: Specifications are based on the provided 5W input and 500-600 watts PEP output, supplemented by data for similar Texas Star models. For precise details, contact Texas Star or authorized retailers. Always operate within legal guidelines and consult local regulations before use.