WORKMAN SCAN3 TELESCOPIC SCANNER ANTENNA W/ BNC Plug 

• Replacement Scanner Antenna
• Right Angle Push-on BNC Connector
• Telescopic, Expanding from 6" to 21"
• For Desktop/Mobile Scanners with a BNC Connection On the Back of the Scanner
• Features
• Covers all frequency bands 25 - 1200 MHz
• 4 Section - expands from 6-1/8" to 19-3/4"
• 0.2" diameter