Sometimes the best solutions are the simple ones. This bracket is suitable for mounting NMO antennas to a vertical surface like the lip of a trunk. A
PCTEL Maxrad TGB34 L Bracket Mount 3/4 Hole For NMO Style Antennas
PCTEL Maxrad TGB34 L Bracket Mount 3/4 Hole For NMO Style Antennas
PCTEL, Inc. - 3/4 in Hole L Bracket in Chrome - TGB34 - Tessco
PCTEL GMLFML195C Antenna Mount
PCTEL Maxrad TGB34 L Bracket Mount 3/4 Hole For NMO Style Antennas
VANROUG 2 Pcs L-Bracket 1255 3/4 Hole Thick Steel Mobile Antennas Brackets for UHF VHF Coax NMO Antenna Mounts Cable Mobile Antennas (Black) : Electronics
L-Mount for Antenna: Pole or Wall: Large Mounting Bracket. N-female secures
PCTEL - Results from #30
NMO34: PCTEL 3/4 Hole NMO Permanent Mount, No Cable, No Connector – Arcadian
Antenna Mounts at CB World! - page 25