Electrical Data 
Mainland Alan 9
• Type: base loaded
• Frequency range: 26-28 MHz
• Impedance: 50Ω unbalanced
• Radiation (H-plane): 360° omnidirectional
• Polarization: vertical
• Bandwidth @ SWR ≤ 2: ≥ 1850 KHz
SWR @ res. freq.: ≤ 1.2
• Max. power:
35 Watts (CW) continuous, 250 Watts (CW) short time
• Standard mount : "N"
• Cable lenght / Type : 4 m / RG 58
Mechanical Data
• Materials: Brass, Copper, Nylon, Stainless Steel
• Height (approx.): 1580mm
• Weight (approx.): 520 g 
.  Mounting hole: Diameter-12.5mm
• Mounting hole: Ø 12.5 mm.