CX-4: replacing a mast-mounted antenna
Image of CX-4 from its own catalog. The exact configuration, attachment dimensions and actual mounting composition are confirmed before ordering.
Request a quoteWhen replacing a marine VHF antenna, the buyer often wants to keep a working mast, mount and laid cable. To order the CX-4, these elements must be described separately: the mechanical connection of the antenna and the radio frequency connection of the feeder solve different problems. From the photograph of the general view of the vessel, it is impossible to determine both connections.
First inspect the installation site
In the query, show the antenna along with the base and neighboring structural elements. Add information about the existing bracket, the method of fixing it and the available place. If the marking of the old antenna reads, attach it separately. This data helps to agree on a replacement without automatically buying a new set of all mounts.
The ability to leave the base depends on its configuration, condition and compliance with the new position. Previous work with a similar antenna does not confirm that the connection is the same. If necessary, the required dimensions and designations are specified by a specialist; it is not required to perform hazardous work at height for the sake of commercial request.
Feeder connector and base thread - different fields
The AC Antennas documentation for the CX4 separately specifies the electrical connector and mechanical threads of the mount. Therefore, both characteristics are required in the replacement statement. Before using the dimensions from this documentation, the manufacturer must also confirm the full code of the proposed configuration: one short name does not replace the product identification.
Show the end of the cable on the antenna side and indicate the type of feeder, if known. If the line is supposed to be maintained, report its length and available status information. The coincidence of the shape of the connector does not in itself confirm the serviceability of the old connection or the correspondence of the entire path to the work task.
The stored cable is also included in the solution.
When matching replacements, consider antenna, cable, connections and radio together. The operating frequencies and its actual configuration are important for the line. If the cable remains the same, it is recorded on the payroll, not considered an inconspicuous part of the new delivery. Replacing an antenna does not automatically eliminate any radio fault.
Describe the initial problem: planned replacement, damage to the element or identified deterioration of the work. From this is formed the subject of the order and the intended inspection. You can’t promise a certain range just by the height of the new antenna: the result depends on the entire path, location and communication conditions.
Replacement kit to be harmonized with one statement
The quotation lists the CX-4 and included mounting elements, cable endings and other necessary accessories. Stored nodes are marked separately. So it becomes clear what the buyer receives with the antenna, and what should already be on the site.
In our card, the price of the position is see the product page. The full composition of the specific delivery and the total amount are confirmed in the quotation. Fixings, adapters and works are not added to the price in silence; if necessary, they are included in the agreed statement. For CX-4, you should not automatically order an HF tuner just because it is found in the general antenna catalog.
How to accept a replacement
Before ordering, determine who checks the connection and condition of stored equipment, who performs the installation and under what conditions the result is accepted. The labeling and completeness of the supply are checked by quotation. The performance of the agreed antenna path is confirmed by a check, not just an external inspection of the new antenna.
To buy a CX-4 with delivery, send a station model, photos of the base and connector, cable information, quantity and city. For Moscow, St. Petersburg, Astrakhan, Vladivostok, Aktau or other destination, the cost and term are calculated at the address and the selected delivery.
- Transmit a photo of the base and end of the cable
- Separate new delivery and retained parts
- Agree on the installation and conditions of the track inspection
The scheme describes the preparation of the order and is not an electrical connection scheme.
| Part part | What to indicate before calculation |
|---|---|
| Antenna | Exact designation of proposed and replaced configuration |
| Mount | Photos, accession and saved items |
| Feeder | Type, length, end and known remarks |
| Work | Responsible for installation and agreed inspection |
Questions before buying
Can I keep the old mount?
The possibility of preservation is checked by the exact connection, condition and accommodation requirements. A similar appearance does not confirm compatibility.
Does the new antenna guarantee the restoration of any communication?
Nope. Consider the entire path, including cable, connections and station. The conditions of verification are agreed on the initial task.
Does the CX-4 need an HF tuner?
The requirements of short wave antennas should not be transferred to the marine VHF position. The desired composition is determined for a specific radio and antenna track.
Main goods and related equipment
Delivery to Russia and Kazakhstan. Indicate the city - agree on the cost and delivery time of the selected set. Availability, condition and documents are confirmed before ordering.
Request a quoteAC Antennas: CX4 documentation for specific configuration. Images from River Marine Pro's own catalog.