TUNE DUPLEXER148-174 Decibal Vhf Cavity Cabinet DB-4003

( Brand: Tune ), ( Part Type: Cabinet )

Review TUNE Talkiesz's Of The Decibal Products Vhf Mhz Free Cavity In Cabinet

The Decibal VHF DB-4003 Duplexer is a high-performance, tunable cavity filter designed for use in VHF frequency bands. This duplexer is specifically tuned to operate within the 148-174 MHz range, making it an ideal choice for applications such as amateur radio, public safety, and commercial two-way radio systems.

The DB-4003 is a dual-band duplexer, meaning it can simultaneously transmit and receive on two separate frequencies. This is achieved through the use of two separate cavity filters, each tuned to a specific frequency, and a suitable balun to ensure proper impedance matching. The duplexer is designed with high selectivity and isolation to minimize intermodulation and cross-talk between the two bands.

The duplexer is housed in a rugged, weather-resistant cabinet made of high-quality aluminum. The cabinet is designed to withstand harsh environmental conditions, including extreme temperatures, humidity, and vibration. The cabinet also features a convenient mounting bracket for easy installation, and a removable cover for easy access to the internal components.

The DB-4003 is easy to tune using the provided adjustment screws. The screws allow you to fine-tune the frequency response of the duplexer to ensure optimal performance for your specific application. The duplexer also features low insertion loss, ensuring that your signals are not excessively attenuated as they pass through the filter.

In summary, the Decibal VHF DB-4003 Duplexer is a high-performance, tunable cavity filter designed for use in VHF frequency bands. Its dual-band design allows for simultaneous transmission and reception, while its rugged construction and easy tuning make it a convenient and reliable choice for a wide range of applications.

1. Wide Frequency Range: The DB-4003 duplexer covers a wide frequency range of 148-174 MHz, which is suitable for various VHF applications.

2. Duplexer Functionality: This device allows for simultaneous transmission and reception, which is useful in two-way communication systems.

3. High Quality Construction: The DB-4003 duplexer is built with durable materials, ensuring long-lasting performance in different weather conditions.

4. Improved Signal Quality: It helps to separate wanted signals from unwanted ones, resulting in improved signal quality.

5. Easy Installation: The duplexer is designed to be easily installed and does not require any special tools or skills.

1. Price: The DB-4003 duplexer can be quite expensive, which might be a disadvantage for those on a tight budget.

2. Complexity: While the installation process is simple, understanding how the duplexer works and correctly setting it up might require some technical knowledge.

3. Potential for Misuse: If not properly set up or used, the duplexer can cause interference in the system, affecting signal quality and communication.

The DB-4003 duplexer is a high-quality device that offers various benefits, such as improved signal quality, wide frequency range, and easy installation. However, its high price and potential for misuse are factors to consider before making a purchase. If you have the necessary technical knowledge and budget, the DB-4003 duplexer can be a valuable addition to your VHF communication system.

If you are in the market for a duplexer for your VHF communication system, the DB-4003 duplexer is a good option to consider. However, ensure you have the necessary technical knowledge to set it up correctly and avoid potential interference. Also, consider if the price fit within your budget. If you are unsure, it may be beneficial to consult with a professional or do further research to make an informed decision.

Details:

Type VHF, FREQ RANGE 148-174 MHZ, CONDITION 1-5 3.9, Shipping cost is est.

It is not shown in picture so I could take a picture of the inside. There is a front cover for the cabinet.

I had to put a shipping method in to start, so I used USPS, but maybe ups or FedEx ground may be less expensive. One is for transmitter and two cavities for receiver. The duplexer cavities themselves fold out for easy servicing.

Decibal products DB-4003 vhf duplexer 148-174 mhz 3 cavity.

• Type: VHF
• FREQ RANGE: 148-174 MHZ
• CONDITION 1-5: 3.9

Returns:

• policy: ReturnsNotAccepted

Shipping:

• ship to locations: US
• type: Calculated

Seller:

• Sellers City: Hillsboro, New Mexico
• Sellers Zipcode: 88042

Payments:

• methods: PayPal
• merchant credit card accepted: false
• autoPay available: true

General:

• Primary Category Name: Consumer Electronics > Radio Communication > Walkie Talkies, Two-Way Radios
• In Stock: Yes
• condition: Used

Offer:

• best offer enabled: false
• # bids: 0
• quantity available: 1
• available: true
• handling days: 2
• minimum bid amount: $249.00
• # Sold: 0

Tune DB-4003 Is Similar To:

• TELEWAVE TWNC 1505-3 VHF Duplexer Cavity 3 cavity 148-174 mhz Free Tune (34.4% similar) When taken out of service was in Tuned in commercial band. Notch cavities are typically used together with pass or pass/reject cavities to eliminate a particular frequency. Notch cavities have very low loss outside the notch band. Visual inspection, except for some very minor wear and tear and some ...(July 10th, 2012)
• Sinclair UHF Pass Reject Cavity Filter TX RX for Ham Radio GMRS Rep FREE TUNE (28.2% similar) I had to put a shipping method in to start, so I used ups, but maybe USPS or FedEx ground may be less expensive. Free Tune unable pass/reject filter uhf band, made by Sinclair. Very nice and clean. Visual inspection, except for some very minor wear and tear and some small scratch's this set looks to...(November 15th, 2012)
• WACOM WP-778-2 TELEWAVE TPRC-4508-2 UHF BpBr 400-512MHZ 8 quot FREE TUNE CLEAN (36% similar) When taken out of service was in Tuned in commercial band. I had to put a shipping method in to start, so I used ups, but maybe USPS or FedEx ground may be less expensive. Very nice and clean. Model WP-778-2 is now the Delaware TPRC-4508 are 8 diameter, 12 in height rack mountable. Visual ...(November 15th, 2012)