Kami mengirim ke Indonesia — pintu ke pintu, bea cukai dan logistik ditangani oleh 3G Electric

3G Electric
⌕
Keranjang Permintaan PenawaranMinta PenawaranMasukDaftar

FRANCIS

FRANCIS is a brand recognized in the industrial and communications equipment sector for its CB radio antennas. The product line available through 3G Electric consists of helical antennas designed for Citizen Band (CB) radio applications, operating within the 27 MHz frequency band. These antennas are constructed with a helical coil design, which allows for a compact physical length while maintaining electrical performance suitable for mobile or fixed CB installations. The antennas are offered in two color options—black and white—and in three overall lengths: 36 inches, 48 inches, and 54 inches. The 36-inch models (SKUs 39CJ26 and 39CJ27) provide a shorter profile for space-constrained installations, while the 48-inch (SKUs 39CJ28 and 39CJ29) and 54-inch (SKUs 39CJ30 and 39CJ31) variants offer increased radiating element length, which can influence signal propagation characteristics. All models are helical type antennas, meaning the conductor is wound in a helix pattern around a central support, which reduces the antenna's physical height compared to a quarter-wave whip while still providing a resonant match for CB frequencies. The antennas are supplied with a black or white finish, likely using a UV-resistant coating to withstand outdoor exposure. As CB radio antennas, they are typically used for short-range voice communication in vehicles, marine vessels, or fixed base stations. The FRANCIS brand does not have widely documented historical origin details in public domain sources, but the product specifications indicate a focus on practical, functional designs for the CB radio market. 3G Electric stocks multiple SKUs of FRANCIS CB antennas, providing procurement options for maintenance managers and plant engineers who need replacement or new antennas for industrial communication systems, such as those used in fleet operations, logistics yards, or remote site coordination. The antennas are compatible with standard CB radio connectors (typically UHF-type PL-259), though buyers should verify connector compatibility with their existing equipment. The helical design offers a trade-off between physical size and electrical efficiency, making these antennas suitable for applications where a full-length whip is impractical. 3G Electric supports global logistics for these SKUs, enabling procurement specialists to source FRANCIS antennas for projects outside Singapore without geographic restrictions.

Genuine
OEM Parts
Expert
Tech Support
1 Hari
Respons Penawaran
Seluruh Dunia
Asal
Pengiriman ke Seluruh Dunia
Pengiriman udara & laut
Lembar Data Atas Permintaan
Spesifikasi teknis & gambar
Respons Penawaran 1 Hari
Tim berbasis di Singapore
Stok siap tersedia & bea cukai ditangani6–10 business days door-to-door; Bea Cukai clearance typically 3–5 business days.Pengiriman ke: Jakarta, Surabaya, Bandung, Medan, Batam
Tampilkan
Halaman 1 dari 1

Tentang FRANCIS

FRANCIS is a brand recognized in the industrial and communications equipment sector for its CB radio antennas. The product line available through 3G Electric consists of helical antennas designed for Citizen Band (CB) radio applications, operating within the 27 MHz frequency band. These antennas are constructed with a helical coil design, which allows for a compact physical length while maintaining electrical performance suitable for mobile or fixed CB installations. The antennas are offered in two color options—black and white—and in three overall lengths: 36 inches, 48 inches, and 54 inches. The 36-inch models (SKUs 39CJ26 and 39CJ27) provide a shorter profile for space-constrained installations, while the 48-inch (SKUs 39CJ28 and 39CJ29) and 54-inch (SKUs 39CJ30 and 39CJ31) variants offer increased radiating element length, which can influence signal propagation characteristics. All models are helical type antennas, meaning the conductor is wound in a helix pattern around a central support, which reduces the antenna's physical height compared to a quarter-wave whip while still providing a resonant match for CB frequencies. The antennas are supplied with a black or white finish, likely using a UV-resistant coating to withstand outdoor exposure. As CB radio antennas, they are typically used for short-range voice communication in vehicles, marine vessels, or fixed base stations. The FRANCIS brand does not have widely documented historical origin details in public domain sources, but the product specifications indicate a focus on practical, functional designs for the CB radio market. 3G Electric stocks multiple SKUs of FRANCIS CB antennas, providing procurement options for maintenance managers and plant engineers who need replacement or new antennas for industrial communication systems, such as those used in fleet operations, logistics yards, or remote site coordination. The antennas are compatible with standard CB radio connectors (typically UHF-type PL-259), though buyers should verify connector compatibility with their existing equipment. The helical design offers a trade-off between physical size and electrical efficiency, making these antennas suitable for applications where a full-length whip is impractical. 3G Electric supports global logistics for these SKUs, enabling procurement specialists to source FRANCIS antennas for projects outside Singapore without geographic restrictions.

Aplikasi Umum

  • Fleet communication — FRANCIS 54-inch helical CB antenna (SKU 39CJ30) for long-haul truck CB radios
  • Industrial yard logistics — FRANCIS 36-inch CB antenna (SKU 39CJ26) for forklift or yard vehicle communication
  • Marine vessel coordination — FRANCIS 48-inch white CB antenna (SKU 39CJ29) for boat-to-shore CB links
  • Remote site operations — FRANCIS 48-inch black CB antenna (SKU 39CJ28) for temporary base station setups
  • Construction site radio — FRANCIS 36-inch white CB antenna (SKU 39CJ27) for short-range crew communication

Pertanyaan yang Sering Diajukan

Pertanyaan umum tentang FRANCIS dari 3G Electric.

What is the frequency range of FRANCIS CB antennas?

FRANCIS CB antennas are designed for the Citizen Band (CB) radio service, which operates in the 27 MHz frequency band (26.965 to 27.405 MHz in most regions). The helical design is tuned to resonate within this band, providing a match for CB transceivers. The exact bandwidth may vary slightly by model, but the antennas are intended for use with standard CB radios.

Are FRANCIS helical antennas suitable for marine CB installations?

Yes, FRANCIS helical CB antennas can be used in marine environments, provided they are mounted with appropriate corrosion-resistant hardware. The antennas are available in black or white finishes, which may offer some UV resistance. However, buyers should consider additional sealing at the connector point to prevent moisture ingress, as the antennas are not explicitly rated for submersion.

What is the difference between the 36-inch and 54-inch FRANCIS CB antennas?

The primary difference is physical length, which affects the antenna's electrical performance. The 54-inch model (e.g., SKU 39CJ30) has a longer radiating element, which can provide slightly higher gain and a lower radiation angle compared to the 36-inch model (e.g., SKU 39CJ26). The shorter antenna is more compact and easier to mount in tight spaces, but may have reduced efficiency. Both are helical designs and operate on CB frequencies.

Do FRANCIS CB antennas come with a mounting bracket or cable?

Based on the product specifications available, FRANCIS CB antennas are supplied as the antenna element only, without a mounting bracket or coaxial cable. Buyers will need to source a compatible mount (e.g., magnetic base, mirror mount, or through-hole mount) and a PL-259 terminated cable separately. The antenna base typically has a standard 3/8-inch-24 thread for mounting.

Can FRANCIS antennas be used with SSB CB radios?

Yes, FRANCIS helical CB antennas are compatible with both AM and SSB (Single Sideband) CB radios, as they operate within the same 27 MHz frequency band. SSB operation may require precise tuning for optimal performance, but the antenna's resonant design should cover the necessary frequencies. A SWR meter should be used to verify match after installation.

Does 3G Electric supply FRANCIS products?

Yes — 3G Electric (S) Pte. Ltd. supplies FRANCIS products. We stock the FRANCIS catalog and supply genuine factory-original products with full manufacturer warranty and technical support.