ARYCKM-D-37X NARROW-BAND VHF Directional Yagi Antenna 3 elements 150-300 MHz Protel
VHF ANTENNA
MOD. ARYCKM-D-37X
NARROW-BAND VHF DIRECTIONAL YAGI ANTENNA – 3 ELEMENTS – 150–300 MHz
Designed and manufactured in Italy.
The ARYCKM-D-37X is a professional narrow-band directional Yagi antenna for the VHF 150–300 MHz range, featuring a 4 MHz operating bandwidth. It is designed for installations where a controlled directional pattern is required to optimize coverage, increase link stability, and reduce co-channel interference.
Typical applications include professional VHF radio systems (PMR/LMR), narrow-band analog FM channels, DMR services in VHF, point-to-point links, coverage shaping for base stations and remote sites, spectrum monitoring / radiomonitoring, RF surveys, and interference hunting in the 150–300 MHz band (including deployments targeted to specific channels within the band).
Built for severe climatic conditions and continuous outdoor service, it is manufactured with a stainless-steel support and a radiant dipole available in aluminium or stainless steel (depending on version). The mast fixing clamp is made of hot-dip galvanised iron with stainless-steel bolts. All metal parts are D.C. grounded for improved lightning behaviour. The antenna is supplied with a standard N-f connector and is rated up to 700 W. On request, the adapter can be protected with a radome cover for additional mechanical/environmental protection.
Also available for bands:
108-150MHz
/
300-600MHz
ELECTRICAL DATA (TYP.)
Frequency range MHz 150 ÷ 300
Bandwidth MHz 4
Gain max. dBi 9.2
Return loss dB ≥ -14
VSWR ≤ 1.5:1
Nominal impedance Ω 50
Polarization V/H
H beamwidth typ. (pattern) 90°
E beamwidth typ. (pattern) 60°
Max Power W 700
Connector Nf
Lightning protection All metal parts are D.C. grounded
MECHANICAL DATA (TYP.)
Dimension length mm 1100 x 1000 x 100
Weight without clamp kg 1.2
Wind surface m² Front 0.03 side 0.12
Front wind load Kg 5.9 (160 Km/h)
Side wind load Kg 17 (160 Km/h)
Mounting mm Ø 35 ÷ 114
MATERIALS
Stainless steel – Teflon – Brass – Aluminium 6060
ACCESSORIES
RAD150300 RADOME Polyvinyl chloride
ZAFZ25/114C CLAMP hot-dip galvanizing Weight 1.9 Kg
ORDERING AND PACKAGING INFORMATIONS
ARYCKM-D-37XA ALLUMINIUM DIPOLE *
ARYCKM-D-37XI STAINLESS STEEL DIPOLE
TYP. PACKAGING cm. 120 x 19 x 19 / Total weight with clamp 3.5 Kg
Frequently asked questions about ARYCKM-D-37X
Common questions about the ARYCKM-D-37X narrow-band 3-element VHF directional Yagi antenna (150-300 MHz):
Which applications is the ARYCKM-D-37X typically used for?
It is used in professional VHF installations where a directional pattern helps improve coverage control and reduce interference, including monitoring, direction-finding support, and fixed VHF sites operating in the 150-300 MHz range.
What are the main electrical characteristics?
The antenna covers 150-300 MHz with 4 MHz bandwidth, up to 9.2 dBi maximum gain, 50 ohm nominal impedance and V/H polarization. It is rated up to 700 W with N-f connector, with VSWR <= 1.5:1 and return loss >= -14 dB.
Is it suitable for harsh outdoor environments?
Yes. It is designed for severe climatic conditions, with a stainless-steel support and dipole options in aluminium or stainless steel. All metal parts are D.C. grounded for improved lightning behaviour and long-term reliability.
Which versions and accessories are available?
Ordering versions: ARYCKM-D-37XA (aluminium dipole) or ARYCKM-D-37XI (stainless-steel dipole). Optional accessories include the RAD150300 PVC radome and the ZAFZ25/114C clamp for Ø 35-114 mm mast installation.
Related topics and searches
Typical queries and applications related to the ARYCKM-D-37X and similar Protel VHF directional Yagi antennas:
VHF Yagi antenna 150-300 MHz
3-element narrow-band VHF antenna
9.2 dBi directional VHF Yagi
VHF spectrum monitoring antenna
Interference hunting / direction finding VHF
D.C. grounded lightning protection antenna
RAD150300 radome
ZAFZ25/114C clamp 35-114 mm
VHF land mobile / marine / ham antenna
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