SIRTEL SRTM-128-S VHF mobile antenna 136-174 Mhz. With spring.PL connector

SIRTEL SRT-M-128S

The Sirtel SRTM-128-S mobile antenna is an excellent choice for VHF communications in the 136-174 MHz band.
Operating Frequency: Designed for the VHF band in the range of 136-174 MHz.
Antenna Type: Mobile antenna with 5/8 wave design, providing good gain and performance in the VHF band.
Flexibility: Equipped with a spring that makes it more flexible against possible obstacles, which helps protect the antenna and communication equipment.
Connector: Equipped with a standard male PL connector, making it easy to connect to most VHF radio equipment.
Adjustable: Factory set for the 144 MHz frequency, Out-of-the-box covers 140 to 150 MHz, but can be adjusted to cover a wider range of frequencies (136-174 MHz) using an attached cutting chart for the shaft of the antenna.
This antenna offers a combination of performance, flexibility and adjustability, making it suitable for a variety of VHF communications applications, from amateur radio to commercial and emergency communications.
SRTM-128S, are adjustable using the cutting technique. This implies that the length of the antenna can be modified by cutting a part of the rod to adapt it to the specific frequency at which you wish to operate. This adjustment may be necessary to optimize antenna performance in a particular frequency band. Connector:

It is important to follow the instructions provided by the manufacturer to perform the cut properly and safely. The use of appropriate and precise tools is recommended to ensure a clean and precise cut. Additionally, it is essential to consider the antenna specifications and desired frequencies before making any modifications.

Characteristics

• Frequency 136-174 Mhz (it is necessary to cut the rod to adjust it according to the desired frequencies)
• Impedance 50 ohms
• Maximum power 150 watts
• Rod length 128 cm
• Bandwidth 10 Mhz
• Conical stainless steel rod
• Male PL connector
• Chrome Steel Spring
• 5/8 format
• PVC and metal casing