MFJ MFJ-748 Tunable Filter

( Brand: Mfj ), ( Type: Tunable Dsp Filter )

Review MFJ Tunable Filter Model

The MFJ-748 Tunable Filter, manufactured by MFJ Enterprises, is a versatile and high-performance radio frequency (RF) filter designed for amateur radio operators and hobbyists. This filter is specifically designed to be used with various types of HF (High Frequency) transceivers and antenna systems.

The MFJ-748 Tunable Filter is a 6-pole, 100 kHz to 30 MHz, 1.5 dB bandwidth filter, which means it can effectively eliminate unwanted noise and interference from various frequency bands, allowing you to focus on the desired signal. The filter features a rugged and compact design, making it easy to install and transport.

One of the standout features of the MFJ-748 Tunable Filter is its tunable design. The filter has a variable tuning range of 100 kHz to 30 MHz, allowing you to fine-tune it to the exact frequency you want to listen to or transmit on. This feature is particularly useful in crowded frequency bands, where multiple signals can overlap and make it difficult to distinguish between them.

The MFJ-748 Tunable Filter is built with high-quality components, including a ferrite core and a variable capacitor, to ensure reliable performance and longevity. The filter also has a low insertion loss, which means it doesn't significantly attenuate the desired signal as it passes through the filter.

The MFJ-748 Tunable Filter is easy to use and install. It has a simple control knob for tuning, and it can be easily connected to your transceiver or antenna system using the provided BNC connectors. The filter is also compact and lightweight, making it easy to take with you to different operating locations.

Overall, the MFJ-748 Tunable Filter is a powerful and versatile RF filter that can help improve the performance of your HF transceiver or antenna system. Its tunable design, high-quality components, and easy-to-use interface make it a valuable addition to any amateur radio operator's toolkit.

1. Adjustable Frequency: The MFJ-748 Tunable Filter allows you to adjust its frequency from 1.8 MHz to 30 MHz, making it versatile for various radio communication needs.

2. Improves Signal Quality: This filter can help improve signal quality by reducing interference and noise, ensuring better reception and transmission.

3. Compact and Portable: The MFJ-748 Tunable Filter is compact and lightweight, making it easy to transport and use in different locations.

4. Affordable: Compared to other tunable filters on the market, the MFJ-748 is a relatively affordable option, making it accessible to hobbyists and amateur radio operators.

1. Limited Frequency Range: Although the MFJ-748 has a wide frequency range, it may not cover all the bands used by some radio communication systems.

2. Manual Tuning: The tuning process for the MFJ-748 is manual, which may require more time and effort to find the optimal frequency compared to automated filters.

3. Potential for Overloading: If not used properly, the MFJ-748 Tunable Filter can overload, which can damage the radio equipment.

The MFJ-748 Tunable Filter is a great option for hobbyists and amateur radio operators looking for an affordable and versatile filter. Its adjustable frequency, compact size, and noise-reducing capabilities make it an excellent tool for improving signal quality. However, its limited frequency range, manual tuning, and potential for overloading are important considerations to keep in mind.

If you are looking for a tunable filter that can help improve your radio communication experience, the MFJ-748 Tunable Filter is a reasonable choice. Consider its limitations and ensure you properly use it to avoid any potential issues. With proper usage and care, the MFJ-748 Tunable Filter can help enhance your radio communication experience.

Details:

Some faded lettering and one small nick on one corner. Filter and tuner.

The case is scratch free. Comes with a manual that is very comprehensive. Works as it should and is in good condition.

Very powerful.

part #: mfj-748 prices

• $69.99-$169.00

specifications speakepar:

• brand: Mfj
• type: Tunable Dsp Filter

Offer:

• quantity: 1
• # Sold: 0
• Started: June 12, 2015, 6:35 am
• best offer: false
• : true
• min. bid: $125.00
• # bids: 0

Shipping:

• cost: $10.0
• type: Flat
• handling: 3 days

General:

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

Returns:

• policy: no returns

Payments:

• PayPal

Seller:

• zipcode: 98584
• city: Shelton, Washington

Ratings:

1. After a misunderstanding on my part was cleared up, the sale went swimmingly. 04-08-14
2. Quick response and fast payment. Perfect! THANKS!! 04-25-14
3. Excellent buyer! Thank You for buying my item!! 04-02-14
4. Thanks for the fast payment! Friendly buyer, good communication 09-12-14
5. Quick response and fast payment. Perfect! THANKS!! 04-16-14

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