ARYCKM-C-25X 2-Element VHF Yagi 108-150 MHz | PROTEL - Protel Antennas - Professional Antennas for Telecomunications

Q: What is the ARYCKM-C-25X typically used for?

It is used where a controlled directional pattern is needed in the 108-150 MHz range, for example airband COM monitoring (118-137 MHz), aeronautical ground stations, VHF NAV monitoring (108-118 MHz), RF surveys and interference mitigation.

Q: What are the main electrical specifications?

From the datasheet: 108-150 MHz, 6 MHz bandwidth, up to 7.2 dBi max gain, 50 ohm, V/H polarization, VSWR = -14 dB. Typical beamwidths: 130 deg (H-plane), 70 deg (E-plane). Power rating up to 700 W with N-f.

Q: Is it suitable for harsh outdoor installations?

Yes. The antenna is designed for severe climatic conditions and continuous service, with a stainless-steel support. All metal parts are DC grounded to improve behaviour against electrostatic charges and lightning-related effects. The RAD108150 radome is available on request.

Q: Which versions and accessories are available?

Ordering versions: ARYCKM-C-25XA (aluminium dipole) and ARYCKM-C-25XI (stainless-steel dipole). Accessories: RAD108150 (PVC radome) and ZAFZ25/114C hot-dip galvanized clamp (weight 1.9 kg) for Ø 35-114 mm masts.

ARYCKM-C-25X VHF Directional Yagi Antenna 108-150 MHz (2-Element) | PROTEL

108 - 300 MHz

VHF ANTENNA
MOD. ARYCKM-C-25X
2-Element Directional Yagi Antenna 108–150 MHz (Narrowband)

The ARYCKM-C-25X is a directional 2-element VHF Yagi designed for the 108–150 MHz band, optimized for narrowband operation (6 MHz bandwidth) where a controlled beam is required to improve coverage shaping and reduce unwanted signals from off-axis directions.

Typical uses include airband COM monitoring (118–137 MHz within the covered range), VHF aeronautical ground stations, VHF NAV monitoring (108–118 MHz, e.g., VOR/ILS localizer monitoring), RF signal surveys, and interference mitigation in professional sites where reliability and stable RF behaviour are critical.

Engineered for severe climatic conditions and continuous outdoor service, it features a stainless-steel support and a radiant dipole in aluminium or stainless steel (depending on version). On request, the adapter can be protected with the RAD108150 radome. The fixing clamp is made of hot-dip galvanised iron with stainless-steel bolts. The whole antenna is D.C. grounded for improved behaviour against electrostatic charges and lightning-related effects. Supplied with N-f connector (max input power 700 W).

ARYCKM-C-25X Protel NARROWBAND FM Directional Yagi 2 elements Antenna 108 - 150 MHz

vertical diagram directional antenna yagi 2 elements vhf 108-150MHz PROTEL

horizontal diagram directional antenna yagi 2 elements vhf 108-150MHz PROTEL

Return loss curve directional antenna yagi 2 elements vhf 108-150MHz PROTEL

ELECTRICAL DATA (TYP.)
Frequency range MHz 108 ÷ 150
Bandwidth MHz 6
Gain max. dBi 7.2
Return loss dB ≥ -14
VSWR ≤ 1.5:1
Nominal impedance Ω 50
Polarization V/H
H beamwidth -3 dB 130°
E beamwidth -3 dB 70°
Max Power W 700
Connector Nf
Lightning protection All metal parts are D.C. grounded
MECHANICAL DATA (TYP.)
Dimension length mm 1400 x 1000 x 100
Weight without clamp kg 1
Wind surface m² Front 0.04 side 0.1
Front wind load Kg 6.1 (160 Km/h)
Side wind load Kg 14.5 (160 Km/h)
Mounting mm Ø 35 ÷ 114
MATERIALS
Stainless steel – Teflon – Brass – Aluminium 6060
ACCESSORIES
RAD108150 RADOME Polyvinyl chloride
ZAFZ25/114C CLAMP hot-dip galvanizing Weight 1.9 Kg
ORDERING AND PACKAGING INFORMATIONS
ARYCKM-C-25XA ALLUMINIUM DIPOLE *
ARYCKM-C-25XI STAINLESS STEEL DIPOLE
TYP. PACKAGING cm. 160 x 19 x 19 / Total weight with clamp 3.1 Kg

Also available for bands: 150–300 MHz / 300–600 MHz

Frequently asked questions about ARYCKM-C-25X

Common questions about the ARYCKM-C-25X 2-element directional VHF Yagi antenna for 108–150 MHz:

What is the ARYCKM-C-25X typically used for?

It is used where a controlled directional pattern is needed in the 108–150 MHz range, for example airband COM monitoring (118–137 MHz), aeronautical ground stations, VHF NAV monitoring (108–118 MHz), RF surveys and interference mitigation.

What are the main electrical specifications?

From the datasheet: 108–150 MHz, 6 MHz bandwidth, up to 7.2 dBi max gain, 50 ohm, V/H polarization, VSWR ≤ 1.5:1, return loss ≥ -14 dB. Typical beamwidths: 130° (H-plane), 70° (E-plane). Power rating up to 700 W with N-f.

Is it suitable for harsh outdoor installations?

Yes. The antenna is designed for severe climatic conditions and continuous service, with a stainless-steel support. All metal parts are D.C. grounded to improve behaviour against electrostatic charges and lightning-related effects. The RAD108150 radome is available on request to protect the adapter.

Which versions and accessories are available?

Ordering versions: ARYCKM-C-25XA (aluminium dipole) and ARYCKM-C-25XI (stainless-steel dipole). Accessories: RAD108150 (PVC radome) and ZAFZ25/114C hot-dip galvanized clamp (weight 1.9 kg) for masts Ø 35–114 mm.

ARYCKM-C-25X VHF Directional Yagi Antenna 108-150 MHz (2-Element) | PROTEL - Protel Antennas - Professional Antennas for Telecomunications

ARYCKM-C-25X VHF Directional Yagi Antenna 108-150 MHz (2-Element) | PROTEL

Frequently asked questions about ARYCKM-C-25X

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