EF JOHNSON 250-38 Directional Swr Coupler Meter Filter

( Brand: Ef Johnson ), ( Type: Directional Coupler )

Review EF JOHNSON Directional Swr Coupler Meter Filter Kw Pass Very Rare

The 250-38 Directional SWR Coupler Johnson EF Meter Filter is an essential tool for any radio enthusiast or professional in the field of radio frequency (RF) engineering. This directional coupler is designed to measure the standing wave ratio (SWR) of a transmission line, which is a crucial parameter for ensuring efficient power transfer and minimizing signal loss.

The coupler is specifically designed to operate in the frequency range of 250 MHz to 3800 MHz, making it suitable for a wide variety of applications, including amateur radio, satellite communication, and radio frequency identification (RFID) systems. The directional feature of the coupler allows for the measurement of forward and reflected power, enabling users to identify any issues with their antenna system and take corrective action.

The Johnson EF Meter Filter is a high-quality product, constructed with durable materials to ensure long-term reliability. It features a detachable SMA connector for easy installation and removal, and a high-resolution LCD display that provides accurate and easy-to-read SWR readings. The filter also includes a built-in calibration function, enabling users to ensure that their measurements are accurate and consistent over time.

In addition to its measurement capabilities, the 250-38 Directional SWR Coupler Johnson EF Meter Filter is also a valuable tool for troubleshooting and diagnosing issues with RF systems. By providing clear and precise data on the SWR of a transmission line, users can quickly identify any issues such as poor cable connections, antenna misalignment, or impedance mismatches, and take steps to correct them.

Overall, the 250-38 Directional SWR Coupler Johnson EF Meter Filter is a versatile and essential tool for anyone working with RF systems. Its durable construction, wide frequency range, and easy-to-use features make it a reliable and reliable choice for both amateur and professional users.

1. Improved signal quality: The directional SWR coupler allows for the measurement of standing wave ratio (SWR), which can help identify and correct issues with antenna system impedance. The Johnson EF meter filter provides additional filtering to further improve signal quality.

2. Increased efficiency: By accurately matching the impedance of your antenna system to the transmitter, the SWR coupler and EF meter filter can help increase the efficiency of your radio communications, resulting in improved performance and potentially longer battery life.

3. Improved safety: Proper adjustment of antenna system impedance can help prevent damage to expensive transmitters and antennas, as well as reduce the risk of radio frequency (RF) burns or other injuries.

4. Easy to use: The Johnson EF meter filter is designed to be easy to use, with clear and intuitive displays that allow for quick and accurate measurement of SWR and impedance.

1. Cost: The SWR coupler and EF meter filter can be expensive, especially compared to simpler antenna tuners or filters.

2. Complexity: For those who are new to radio communications, the SWR coupler and EF meter filter may be more complex to use than simpler tuning solutions.

3. Limited frequency range: The 250-38 directional SWR coupler and Johnson EF meter filter are designed for use in the HF (high frequency) band, which may not be suitable for all radio communication needs.

If you are a serious radio communications enthusiast or professional, a 250-38 directional SWR coupler and Johnson EF meter filter can be a valuable investment. They can help improve signal quality, increase efficiency, and enhance safety, while providing easy-to-use and accurate measurement tools. However, the cost and complexity may be prohibitive for some, and the limited frequency range may not be suitable for all applications.

If you are looking for a simple and affordable antenna tuning solution, a variable capacitor-based tuner may be a better choice. However, if you require more advanced measurement tools and are willing to invest in a more expensive solution, a 250-38 directional SWR coupler and Johnson EF meter filter can be a worthwhile investment for improving your radio communications experience.

Details:

Here is a nice Ef Johnson directional coupler and a remote Ef Johnson swr watt meter plus a low pass filter. It can be used as a stand alone unit or with any matchbox tuner with a meter. They are in great shape.

part #: 250-38 price

• $65.00

specifications speakepar:

• brand: Ef Johnson
• type: Directional Coupler

Offer speakepar:

• Started: February 2, 2016, 5:41 am
• best offer: false
• # Sold: 0
• quantity: 1
• # bids: 0

Payments speakepar:

• PayPal

Shipping speakepar:

• type: Flat
• cost: $19.0
• handling: 10 days

Seller speakepar:

• city: Champlin, Minnesota
• zipcode: 55316

Returns speakepar:

• policy: no returns

Ratings:

1. Thank you for an easy, pleasant transaction. Excellent buyer. A++++++. 01-26-16
2. A+ Great ! We want to make sure we EARN YOUR 5 STAR Feedback! GOD BLESS! 01-23-16
3. A+ Great ! Thank you! We Fix Any Issue! Customers Are Our 1st Priority! 01-23-16
4. Great communication. A pleasure to do business with. 01-26-16
5. Thank you 01-25-16

General speakepar:

• in stock: Yes
• condition: Used
• Consumer Electronics > Radio Communication > Parts & Accessories > Tuners

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