ARYC125.Z Directional Yagi Antenna 2 elements 2-87 MHz Protel
The ARYCKM-A-25X is a directional narrowband FM Yagi antenna for the 50–87 MHz band, with 4 MHz bandwidth and maximum gain of about 7.2 dBi. It has a stainless-steel support and a radiant dipole in aluminium or stainless steel, providing high mechanical performance even in severe climatic conditions and guaranteeing long-term stability of the radiation pattern.
In addition to our standard antennas, Protel designs and manufactures customised ARDC (omnidirectional) and ARYC (directional) antennas to match specific site requirements, allowing the customer to choose the frequency range within 50–87 MHz and the materials used. On request, the adapter can be protected by a RAD5087 radome; the fixing clamp is made of hot-dip galvanised iron with stainless-steel bolts and all metal parts are DC grounded. This makes the ARYCKM-A-25X suitable for public-safety and emergency services (fire brigades, police, ambulance, civil defence), utility and industrial radio networks and other professional VHF systems that require a directional antenna.
MOD. ARYCKM-A-25X
ELECTRICAL DATA
Frequency range A MHz 50÷87
Bandwidth MHz 4
Gain max. dBi 7.2
Return loss dB ≥ -14
VSWR ≤ 1.5:1
Nominal impedance Ω 50
Polarization V/H
H beamwidth typ. -3 dB 130°
E beamwidth typ. -3 dB 70°
Max Power W 700 W (Nf) – 1.5 kW (7/16")
Connector Nf – 7/16"f
Lightning protection All metal parts are D.C. grounded
Bandwidth MHz 4
Gain max. dBi 7.2
Return loss dB ≥ -14
VSWR ≤ 1.5:1
Nominal impedance Ω 50
Polarization V/H
H beamwidth typ. -3 dB 130°
E beamwidth typ. -3 dB 70°
Max Power W 700 W (Nf) – 1.5 kW (7/16")
Connector Nf – 7/16"f
Lightning protection All metal parts are D.C. grounded
MECHANICAL DATA
Dimension length mm 2300 x 1500 x 100
Weight without clamp kg 2
Wind surface typ. m² Front 0.05 Side 0.11
Front wind load typ. kg 6.8 (160 km/h)
Side wind load typ. kg 16.2 (160 km/h)
Mounting mm Ø 35÷114
Dimension length mm 2300 x 1500 x 100
Weight without clamp kg 2
Wind surface typ. m² Front 0.05 Side 0.11
Front wind load typ. kg 6.8 (160 km/h)
Side wind load typ. kg 16.2 (160 km/h)
Mounting mm Ø 35÷114
MATERIALS
Stainless steel – Teflon – Brass
Stainless steel – Teflon – Brass
ACCESSORIES
RAD5087 RADOME polyvinyl chloride
ZAFZ25/114C CLAMP hot-dip galvanizing – weight 1.9 kg
RAD5087 RADOME polyvinyl chloride
ZAFZ25/114C CLAMP hot-dip galvanizing – weight 1.9 kg
PACKAGING
Ordering and packaging informations:
ARYCKM-A-25XA aluminium dipole *
ARYCKM-A-25XI stainless steel dipole
Packaging mm 2400 x 180 x 180
Total weight with clamp kg 4.5
Ordering and packaging informations:
ARYCKM-A-25XA aluminium dipole *
ARYCKM-A-25XI stainless steel dipole
Packaging mm 2400 x 180 x 180
Total weight with clamp kg 4.5
Frequently asked questions about ARYCKM-A-25X
Some common questions about the ARYCKM-A-25X directional narrowband FM Yagi antenna 50–87 MHz:
For which applications is the ARYCKM-A-25X antenna used?
The ARYCKM-A-25X is a directional narrowband FM Yagi antenna for the
50–87 MHz VHF band, with 4 MHz bandwidth and
maximum gain of about 7.2 dBi. It is suitable for professional
VHF networks, public-safety and emergency communications (fire
brigades, police, ambulance and civil defence), as well as utility and industrial
radio systems that require a focused radiation pattern, linear V/H
polarisation and robust mechanical performance in severe climatic conditions.
Which electrical performance does the ARYCKM-A-25X offer?
According to the technical data, the ARYCKM-A-25X operates from
50 to 87 MHz with 4 MHz bandwidth,
gain 7.2 dBi, return loss ≥ -14 dB and
VSWR ≤ 1.5:1. The antenna has 50 ohm nominal
impedance and supports V/H linear polarisation. Typical
-3 dB beamwidths are about 130° in the H-plane and
70° in the E-plane. Maximum RF power is 700 W with
N-female connector and 1.5 kW with
7/16-female connector. All metal parts are DC grounded for
lightning protection.
What mechanical characteristics does the ARYCKM-A-25X have?
The ARYCKM-A-25X has approximate dimensions of
2300 x 1500 x 100 mm and a weight of about 2 kg
without clamp. The typical wind surface is about
0.05 m² front and 0.11 m² side, with wind loads
of around 6.8 kg (front) and 16.2 kg (side) at
160 km/h. Mounting is suitable for masts with
Ø 35–114 mm, making the antenna easy to install on towers and
poles in professional VHF sites.
Which materials, radome and clamp options are available for the ARYCKM-A-25X?
The antenna uses stainless steel, Teflon and
brass, with a stainless-steel support and radiant dipole in aluminium or
stainless steel. Accessories include the RAD5087 polyvinyl chloride radome,
which protects the adapter, and the ZAFZ25/114C hot-dip galvanised clamp
weighing about 1.9 kg. Ordering codes are
ARYCKM-A-25XA (aluminium dipole) and ARYCKM-A-25XI (stainless
steel dipole); packaging is approximately 2400 x 180 x 180 mm with a
total weight of about 4.5 kg including clamp.
Related topics and searches
Typical queries and applications related to the ARYCKM-A-25X directional VHF antenna:
50–87 MHz directional VHF Yagi antenna
narrowband FM Yagi 4 MHz bandwidth
public-safety and emergency VHF antenna
fire brigades, police and ambulance radio
stainless-steel Yagi with radome option RAD5087
700 W / 1.5 kW 50 ohm V/H polarisation
Protel directional VHF antennas for utility and industrial networks
VISIT "ANTENNAKIT" – BEST QUALITY – LOWER PRICE – CLICK BELOW