Accessories

Radiocommunication devices and systems for railways.

Accessories: AT2S antenna, KMT-01 microphone, handheld microphone

AT2S antenna

The GSM-R/GSM/GPS rolling stock antenna type AT2S is an original design of the designers of Radionika Sp., optimized for the requirements and working conditions existing in the railway industry. z o. o. from Krakow. The electrical and mechanical parameters of the antenna ensure stable operation of cooperating radiocommunication devices operated on railway rolling stock.

The electrical and mechanical design of the antenna ensures optimal operating parameters of communication devices (Koliber train radio, GPS receivers, GSM-R/GSM devices) used on rail vehicles. The design of the antenna ensures its high resistance to atmospheric influences (temperature, precipitation) and mechanical impacts.

GSM/GSM-R antenna

Frequency ranges:
- 850-960MHz
- 1700-1900MHz
VSWR:
- 870-960MHz < 1.4
- 1700-1900MHz < 1.8
Gain: 0 dB
Polarization: vertical
Maximum power: 30 W
Output connector: N female
Impedance: 50 ῼ

GPS antenna

Frequency: 1575.42 ± 1.023 MHz
Gain: typically 3 dBic at zenith
Polarity: RHCP
Axial ratio: max. 4.0 dB at zenith
Low noise amplifier
- frequency: 1575.42 ± 1.023 MHz
- reinforcement
  - minimum 23 dB
  - typical 25 dB at 25˚C ± 5˚C
noise figure:
- typical 1.4 dB at 25˚C ± 5˚C
- max. 1.8 dB at 85˚C
VSWR: max. 2.0
Output connector: TNC female
Impedance: 50 ῼ

General properties

Housing: Bayblend T85 plastic
Protection level: IP67, IK09
Dimensions: 145(D) x 85(W) x 105(H) mm
Weight: approx. 0.8 kg

Compliance of the structure with the requirements:
Environmental standards, mechanical resistance, EMC compatibility: PN-EN 50155 (5), PN-EN 50125 (12), PN-EN 50121-3-2 (14), UIC Card 758 (15). Construction safety (structure insulation, electrical strength): PN-EN 60243-1, PN-EN 60243-2, UIC 758, UIC 533.

KMT-01 handset

The KMT-01 chandset has been specially designed for a wide range of applications in rail transport. The ergonomic shape of the handset of the microtelephone together with the base (base) guarantee safe and comfortable handling of conversations in the driver’s cab. A large, ergonomic, easily felt PTT button guarantees quick connection in any situation.

Stable and convenient mounting of the handset ensures comfortable, efficient and reliable operation for the operator. The design of the handset allows it to be installed in both vertical and horizontal positions. The structured, matte surface of the housing additionally increases the aesthetic and functional values of the product.

The handset kit includes

earphone with a spiral cable, approx. 50 cm long
microphone base with hook switch
LiYCY 8×0.25 type control cable, 2 m long, with DB-9 type connector (male)

Technical parameters:

Dynamic insert

Impedance 260 Ω
Efficiency 115.3 dB/1mW
Frequency response 300-3400 Hz

Condenser microphone

Impedance 2.2 kΩ
Frequency response 20-16000 Hz
DB-9 male output connector with LiYCY 8×0.25 control cable, 2m long*

General properties

Housing ABS plastic, polyurethane
Color of the handset, base – matte black PTT button, orange
Dimensions with base 249(D) x 73(W) x 69(H) mm
Weight approx. 470 g

Microphone type KMR-01

The KMR-01 type microphone is an essential equipment for every train radio. The microphone’s design, ergonomic shape, high quality of the microphone’s electronic system, combined with high-quality materials, including the cable used, ensure comfort and durability during several years of intensive use in very difficult conditions.