Sirio M150 PL – VHF Mobile Antenna 136-174 MHz 150W UHF Male Connector

The Sirio M150 PL is a reliable and economical VHF mobile antenna solution, manufactured in Italy by Sirio Antenne. Designed to offer optimal performance on the VHF band, it is ideal for amateur radio installations (144-146 MHz) as well as professional PMR networks (136-174 MHz). Its simple 1/4 wave design with a base spring ensures excellent mechanical resistance while providing clear communication.

Highlights

• Wide bandwidth: With a bandwidth greater than 20 MHz at SWR < 2, it easily covers adjacent frequencies without constant adjustments.
• Quality materials: The whip is made of 17/7 PH stainless steel, ensuring flexibility and corrosion resistance.
• Robust PL-259 Connector: The base connector is a genuine Sirio PL-259 with a nickel-silver finish for optimal conductivity and increased durability.
• Installation versatility: Thanks to its standard UHF Male connector, it screws directly onto any magnetic base or SO-239 (PL) type hole mount.
• Adjustable: Although pre-tuned to 144 MHz, it can be easily tuned to higher frequencies (up to 174 MHz) by cutting the whip according to the provided chart.

Technical specifications

• Type: 1/4 wave Mobile
• Frequency range: 136 - 174 MHz (Tunable by cutting)
• Factory resonance frequency: approx. 144 MHz
• Impedance: 50 Ohms
• Radiation: Omnidirectional
• Polarization: Vertical
• Gain: 0 dB ref. to 1/4 wave whip / 2.15 dBi
• Bandwidth @ SWR ≤ 2: ≥ 20 MHz at 144 MHz
• SWR @ resonance: ≤ 1.2
• Max power: 150 Watts (CW)
• Connector: UHF-Male (PL-259)
• Materials: 17/7 PH Stainless steel, Chromed brass, Nylon
• Height (approx): 505 mm
• Weight (approx): 120 gr

Compatibility

• Magnetic bases: All bases with SO-239 connector (PL Female).
• Fixed mounts: Trunk, gutter, or hole mounts equipped with an SO-239 base.
• Radios: Any VHF transceiver (Mobile or Handheld with adapter) covering 136-174 MHz (Yaesu, Icom, Kenwood, Anytone, Motorola, etc.).

FAQ

Why choose the Sirio M150 PL?

• Value for Money: An antenna manufactured in Europe at a very competitive price for reliable performance.
• Proven robustness: The quality of Sirio materials ensures superior longevity compared to Asian copies.
• Easy installation: The PL-259 standard is the most widespread, making this antenna compatible with the majority of existing installations.
• Usage flexibility: Perfect for both beginner amateur radio operators and professional use (taxi, ambulance, 4x4).