Diamond SD330 3.5-30MHz HF Screwdriver Mobile Antenna

The Diamond SD330 is a motorised screwdriver mobile antenna covering 3.5-30MHz. Its centre-loaded 1/4-wave design provides remotely adjustable tuning across the specified frequency range and is rated for up to 200W SSB.

The antenna operates from a 12V DC supply and draws 100mA. Diamond specifies an adjustment time of approximately 50 seconds from 3.5MHz to 30MHz and approximately 20 seconds from 7MHz to 30MHz.

Key features

• Motorised HF screwdriver mobile antenna
• Frequency range: 3.5-30MHz
• Maximum power rating: 200W SSB
• Centre-loaded 1/4-wave design
• 50-ohm impedance
• SWR: less than 2.0 at resonance
• M-P antenna connector, equivalent to PL-259
• 12V DC operation at 100mA

Specifications

• Brand: Diamond Antenna
• Model: SD330
• Frequency: 3.5-30MHz
• Length: approximately 1.85m
• Weight: approximately 1.1kg
• Maximum power: 200W SSB
• Impedance: 50 ohms
• SWR: less than 2.0 at resonance
• Connector: M-P / PL-259
• Antenna type: centre-loaded 1/4 wave
• Power requirement: 12V DC, 100mA
• Adjustment time: approximately 50 seconds from 3.5-30MHz; approximately 20 seconds from 7-30MHz