1. Ham, Amateur Radio Communication For Sale
  2. sku: 13090745746555772
  3. PALOMAR ENGINEERS CU-4-9-1200

PALOMAR ENGINEERS CU-4-9-1200 Cube Unun 4/1

Cu-4-9-1200 Palomar Engineers 4 1 9 Cube Unun Model Excellent

( Brand: Palomar Engineers ), ( Manufacturer Part Number: CU-4-9-1200 ), ( Type: Hsm Radio )

Review PALOMAR ENGINEERS 4/1 Cube Unun Model Excellent

Palomar Engineers CU-4-9-1200 Cube Unun - A Compact, High-Performance Inductive Device for Amateur Radio Operators

The Palomar Engineers CU-4-9-1200 Cube Unun is a remarkable, high-quality inductive device designed specifically for amateur radio enthusiasts seeking to enhance their RF transmission and reception capabilities. This compact Unun (Uni-unidirectional isolator/unidirectional coupler) is a testament to Palomar Engineers' commitment to delivering innovative, reliable, and user-friendly radio frequency (RF) equipment.

Measuring just 1.5 x 1.5 x 1.25 inches (38.1 x 38.1 x 31.75 mm), the CU-4-9-1200 Cube Unun offers an impressive Q of 1200, ensuring minimal power loss and optimal efficiency in RF transmission and reception. Its compact size makes it an ideal choice for portable or limited space applications, such as QRP operations, while still delivering professional-grade performance.

The CU-4-9-1200 Cube Unun is a 4:1 step-up transformer, meaning it increases the output power of your transmitter by a factor of 4, while also providing isolation to prevent feedback and improve the overall stability of your system. It is designed to work with 9 MHz to 1200 MHz frequency range, making it a versatile tool for a wide range of amateur radio applications.

Constructed with high-quality materials and precise engineering, the CU-4-9-1200 Cube Unun ensures consistent performance even under the most demanding conditions. Its durable design and robust construction make it a reliable addition to any amateur radio station, whether you're an experienced operator or a beginner just starting your journey in the world of amateur radio.

In conclusion, the Palomar Engineers CU-4-9-1200 Cube Unun is an excellent choice for amateur radio operators looking for a compact, high-performance inductive device to enhance their RF transmission and reception capabilities. Its impressive Q, versatile frequency range, and robust construction make it a valuable tool for any radio station, whether for portable operations or a permanent setup.

The Palomar Engineers Cu-4-9-1200 Cube Unun is a device used for matching impedances in radio frequency (RF) applications. Here are some pros and cons to consider before making a purchase:

Pros:

1. High Power Handling: The Cu-4-9-1200 Cube Unun can handle up to 1200 watts of RF power, making it suitable for high power applications such as amateur radio transceivers and ham radio.

2. Wide Frequency Range: This Unun can operate over a wide frequency range (1.8 MHz to 1.5 GHz), making it versatile for various RF applications.

3. Compact Size: The device is compact and comes in a cube shape, taking up minimal space in your setup.

4. Durable Construction: Palomar Engineers are known for their high-quality products, and the Cu-4-9-1200 Cube Unun is no exception. It is built to last, with a durable construction that can withstand high power and frequent use.

Cons:

1. Cost: The Cu-4-9-1200 Cube Unun is relatively expensive compared to other Unun devices on the market.

2. Complexity: Some users may find the device complex to set up and use, especially if they are new to RF impedance matching.

3. Limited Q-Factor: The Q-factor of this Unun is not as high as some other devices, which may affect its performance in certain applications.

Conclusion:

The Palomar Engineers Cu-4-9-1200 Cube Unun is a high-quality, durable, and versatile impedance matching device that is suitable for high power RF applications. However, its high cost and potential complexity may be a turn-off for some users. If you are looking for a compact, high-power Unun with a wide frequency range, this device is worth considering. If budget is a concern, you may want to explore other options that offer similar performance at a lower price point. Ultimately, the decision depends on your specific needs and budget.

Details:

This unit is in excellent condition. Used very little. It also comes with an end Federal antenna coax feed line chock part number EFFLC-240. With its unique 4:1 and 9:1 conversion capabilities, this unun from Palomar Engineers is a reliable effective tool for enhancing the performance of ham radio equipment.

specifications hamamateuradio:

  • brand: Palomar Engineers
  • mpn: Cu-4-9-1200
  • type: Hsm Radio

payments hamamateuradio:

  • other
  • wallet: Apple-pay
  • credit card: Diners-club

returns hamamateuradio:

  • method: Money back
  • policy: Returns Accepted
  • paid by: Buyer
  • time: 30 Days

seller hamamateuradio:

  • rating: 100.0%
  • # reviews: 1532
  • city: Grand Junction, Colorado

offer hamamateuradio:

  • quantity: 1
  • availability: In Stock
  • started: December 4, 2025
  • best offers: True
  • sold: 0
  • options: Ship-to-home

shipping hamamateuradio:

  • transit: 4-9 Days
  • carrier: USPS
  • class: Standard
  • service: USPS Ground Advantage
  • cost: $8.58
  • type: Calculated

general hamamateuradio:

  • condition: Used
  • Radio Communication > Ham, Amateur Radio > Other Ham Radio Equipment
type: hsm radio,
category: electronics > radio communication > ham, amateur radio > ham radio equipment, sku: 13090745746555772,
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