The Ebyte TX2400 series is a 12-model family of 2.4~2.5GHz ISM antennas at 50Ω, spanning 12dBi 1200mm fiberglass omni antennas, IPEX-1 and IPEX-3 FPC/PCB internal antennas (25×9mm to 66×15mm, 1g), 29~200mm SMA-J rubber whips, and 176mm magnetic or bolt-base suction-mount antennas, with gain from 2dBi to 12dBi and VSWR from ≤1.5, for Wi-Fi / LoRa 2.4G modules, gateways, APs, routers and wireless data radios.
Key Features & Advantages
- Full 2.4~2.5GHz ISM Coverage: Every model is tuned across the 2400~2500MHz band used by 802.11b/g/n/ax Wi-Fi, BLE, Zigbee, LoRa/LoRaWAN 2.4G and the company's 2.4G serial data modules, so one series covers internal, mobile and base-station roles without retuning.
- Up to 12dBi Gain on the Outdoor Omni: The TX2400-BLG-120 uses a multi-element collinear array inside a Φ20mm × 1200mm fiberglass radome, giving 12dBi gain, 360° horizontal / 50° vertical beamwidth, 50W power handling and -40~+85°C rating for mast and pole base stations.
- IPEX-1 and IPEX-3 Internal Options: FPC models in 25×9, 30×14, 47×7 and 66×15mm with 100~120mm RF1.13 / RG0.81 pigtails, 1g mass and 2W rating, plus IPEX-3 (MHF3) variants for compact, thermally constrained enclosures where an SMA bulkhead cannot fit.
- Rubber Whips from 29mm to 200mm: Ultra-short straight (JW-3, 2g), short straight (JZ-5, Φ10×50mm), flexible soft (JZR-6, 60mm±2mm) and 197mm foldable bendable (JKS-IPX20, 5dBi) types cover size-constrained portable terminals up to higher-gain gateway use.
- Magnetic vs Bolt Suction Bases: The 176mm × Φ46mm XPFC-300 uses a strong magnetic base for tool-free mounting on vehicle or cabinet roofs; the XPFL-300 uses a bolt base for permanent mechanical fixing where vibration could displace a magnet. Both are top-loaded 3dBi omnis with 10W handling.
- Impedance and Match Discipline: All models are 50Ω with VSWR listed between ≤1.5 and ≤2.0 per model, keeping reflection loss low so the module's FCC/CE-verified link budget is not degraded by an unmatched antenna.
Core Specifications
Compiled per model from the official Ebyte per-model specification tables and the series comparison table. Where the official detailed table differs from a marketing summary, the detailed table value is used and flagged in the notes below.
| Model | Type | Frequency range | Gain | VSWR | Polarization / pattern | Power rating | Dimensions | Pigtail | Connector | Weight | Operating temp |
|---|---|---|---|---|---|---|---|---|---|---|---|
| TX2400-BLG-120 | Fiberglass omni | 2.4~2.5GHz | 12dBi | Vertical / omni, 360° H & 50° V | 50W | 1200mm × Φ20mm | — | N-J (N male) | 425±10g (net), 645±10g packed | -40~+85°C | |
| TX2400-FPC-3014 | FPC internal | 2.4~2.5GHz | 2.5dBi | Linear / omni | 2W | 30×14mm | RF1.13, 118mm (customizable) | IPEX-1 | 1g | -30~+75°C | |
| TX2400-PCB-4707 | PCB internal | 2.4~2.5GHz | 2.5dBi | Linear / omni | 2W | 47×7mm | RF1.13, 110mm (customizable) | IPEX-1 | 1g | -30~+75°C | |
| TX2400-FPC-6615 | FPC internal | 2.4~2.5GHz | 3.5dBi | Linear / omni | 2W | 66×15mm | RF1.13, 120mm (customizable) | IPEX-1 | 1g | -30~+75°C | |
| TX2400-FPC3-2509 | FPC internal | 2.4~2.5GHz | 2dBi | Linear / omni | 2W | 25×9mm | RG0.81, 100mm (customizable) | IPEX-3 | 1g | -30~+75°C | |
| TX2400-FPC3-3014 | FPC internal | 2.4~2.5GHz | 2.5dBi | Linear / omni | 2W | 30×14mm | RG0.81, 118mm (customizable) | IPEX-3 | 1g | -30~+75°C | |
| TX2400-FPC3-5015 | FPC internal | 2.4~2.5GHz | 3dBi | Linear / omni | 2W | 50×15mm | RG0.81, 120mm (customizable) | IPEX-3 | 1g | -30~+75°C | |
| TX2400-JKS-IPX20 | Bendable whip | 2.4~2.5GHz | 5dBi | Vertical / omni | 10W | 197mm tall | RG1.37, 200mm | IPEX-1 | 18g | -30~+75°C | |
| TX2400-JW-3 | Ultra-short straight whip | 2.4GHz | 2dBi | Vertical / omni | 20W | 29mm tall | — (direct screw-on) | SMA-J | 2g | -40~+85°C | |
| TX2400-JZ-5 | Short straight whip | 2.4~2.5GHz | 2.5dBi | Vertical / omni | 10W | Φ10×50mm | — | SMA-J | 5g | -30~+75°C | |
| TX2400-JZR-6 | Flexible soft whip | 2400~2500MHz | 2.5dBi | Vertical / omni | 20W | 60mm±2mm | — | SMA-J | 8g | -40~+85°C | |
| TX2400-XPFC-300 | Suction mount (magnetic base) | 2.4GHz | 3dBi | Vertical / omni | 10W | 176mm × Φ46mm base | — | SMA-J | 65g | -30~+75°C | |
| TX2400-XPFL-300 | Suction mount (bolt base) | 2.4GHz | 3dBi | Vertical / omni | 10W | 176mm × Φ46mm base | — | SMA-J | 65g | -30~+75°C |
Product Selection Guide
Selection Notice: 2400~2500MHz is licence-free ISM in most regions, but allowed EIRP and duty cycle still differ by country (e.g. FCC Part 15 in the US, RED 2014/53/EU in Europe) — confirm your destination regulation before ordering. Choose by mounting geometry first: metal enclosure exterior → XPFC-300 magnetic or XPFL-300 bolt base; mast/pole base station → BLG-120 (12dBi); inside a plastic enclosure with an RF pad → FPC/PCB IPEX-1 or IPEX-3 (match the connector generation to your module socket — IPEX-3 and IPEX-1 are not interchangeable); portable terminal → SMA-J rubber whip.
| Mounting need | Recommended models | Why |
|---|---|---|
| Long-range outdoor base / mast | TX2400-BLG-120 | 12dBi collinear array, 1200mm fiberglass radome, 50W, -40~+85°C, N-J |
| Inside sealed plastic housing, small RF pad | FPC3-2509 / FPC-3014 / FPC-6615 / PCB-4707 | 1g, 25×9~66×15mm, self-adhesive FPC/PCB with 100~120mm pigtail |
| Compact module using IPEX-3 (MHF3) socket | FPC3-2509 / FPC3-3014 / FPC3-5015 | IPEX-3 generation connector; higher gain with the larger 50×15mm patch |
| Vehicle or cabinet roof, no drilling | TX2400-XPFC-300 | 3dBi top-loaded whip on strong magnetic base, 176mm |
| High-vibration permanent outdoor install | TX2400-XPFL-300 | Same 3dBi element on bolt base that cannot be knocked off |
| Space-critical portable / dongle | JW-3 (29mm) / JZ-5 (Φ10×50mm) | 2g~5g screw-on whips, straight profile |
| Handheld or stowable terminal | JZR-6 (60mm flexible) / JKS-IPX20 (197mm, 5dBi) | Bendable elements; JKS-IPX20 adds 5dBi with an IPEX-1 pigtail |
Industrial Installation & Wiring
1. Connector mating: IPEX-1 and IPEX-3 are snap-on RF interfaces — align and press until you feel the click, never pull by the cable. IPEX-1 (U.FL) and IPEX-3 (MHF3) have different footprints and are not cross-compatible; order the generation that matches your module footprint. SMA-J (male thread, pin) screws into SMA-K jacks by hand plus a light quarter turn; do not lever a module's SMA island.
2. Internal antenna keep-out: An FPC/PCB internal antenna needs a clean ground-plane area and clearance from metal, batteries, DC-DC converters and LCD ribbon cables. Peel the 3M backing and stick the patch flat on the enclosure wall with the pigtail routed away from the radio section; do not fold the FPC over its radiating area.
3. Fiberglass mast mounting: Fix BLG-120 vertically with two U-bolts on a Φ30~55mm mast, keep at least 30~50cm clearance from other antennas and metal structures, and weatherproof the N-J joint with self-amalgamating tape plus heat-shrink. Provide a lightning/arrester and earth the mast.
4. Suction-mount bases: The magnetic XPFC-300 needs a continuous bare-metal surface (not over paint-cured coatings or fibreglass roofs) to keep its ground plane; the bolt-fixed XPFL-300 requires a Φ matching hole and should be sealed with a weather washer. Route the coax so it is not pinched by doors or hatches.
5. Cable loss discipline: Internal pigtails are 100~120mm of RG0.81/RF1.13, which is acceptable at 2.4GHz; any field-installed extension should use low-loss cable (e.g. LMR240 class) because 2.4GHz feeder loss rises steeply and cancels the antenna's gain advantage.
Practical Application Scenarios
1. Wi-Fi / BLE / Zigbee Gateway and AP Products
OEM gateways, industrial APs and smart-home hubs use the IPEX internal FPC/PCB antennas when the housing is plastic and no external connector is allowed, or detachable SMA-J whips when a serviceable external antenna is required; the 3.5dBi FPC-6615 is the usual choice when internal volume permits a larger patch.
2. 2.4GHz LoRa / Serial Data Radio Point-to-Point Links
For longer outdoor 2.4G data links between buildings or to field RTUs, the 12dBi BLG-120 on a mast raises the effective link budget while its 50° vertical beamwidth concentrates energy on the horizon, and its 50W rating gives headroom for power amplifiers.
3. Vehicle, Crane and Mobile Machine Temporary Coverage
The XPFC-300 magnetic-base whip gives fleet terminals, mobile monitoring carts and construction machinery a drill-free roof antenna with a real ground plane, while XPFL-300 suits permanently mounted equipment exposed to vibration.
4. Handheld Test Sets, Wearables and Compact Field Instruments
The 29mm JW-3 and Φ10×50mm JZ-5 keep handheld transceivers and dongles compact, and the flexible JZR-6 bends flat inside a bag or panel cut-out without snapping, which is what rugged field equipment needs.
FAQ Section
Q1: Can I use an IPEX-3 antenna on an IPEX-1 (U.FL) module socket?
No. IPEX-3 (MHF3) and IPEX-1 (U.FL) differ in head size, mounting height and cable diameter, and the mating receptacles are not cross-compatible. Order FPC3-* models only for boards with an IPEX-3 receptacle and FPC-*/PCB-* IPEX models for IPEX-1. If you must convert, use a rated adapter pigtail and account for its insertion loss at 2.4GHz.
Q2: Why does the 12dBi fiberglass antenna sometimes not out-reach a 5dBi whip indoors?
A 12dBi omni flattens the pattern: it concentrates energy near the horizon at the cost of a narrower (~50°) vertical beamwidth. If the link partner is close, at a different height, or indoors, the main lobe can miss it entirely, and a 5dBi whip with a fatter vertical lobe performs better. Mast-mounted long-distance line-of-sight is where BLG-120 pays off.
Q3: Do the internal FPC antennas need a ground plane?
Their match is characterised in the official table without assuming a specific enclosure, so treat the host PCB and housing as part of the system: keep the recommended keep-out, avoid metal behind the patch, and re-check VSWR in the final enclosure. An FPC stuck against a metal bracket or a battery will detune and can raise VSWR well past the quoted ≤1.5~2.0.
Q4: Which models tolerate the highest transmit power?
Per the official tables: 50W for the BLG-120 fiberglass, 20W for the JW-3 and JZR-6 whips, 10W for the JZ-5, JKS-IPX20 and both suction-mount models, and 2W for the FPC/PCB internal antennas. If you run an external 2.4G power amplifier, use the fiberglass model and keep the coax properly rated.
