RFI CD40-148960-11 Multiband VHF/UHF Whip, 148-174MHz, NMO Fit

Multiband Vehicle Antenna, 148-174MHz VHF + 378-960MHz UHF, Whip OnlyRecommended configuration: choose this whip if your vehicle already has an NMO mount. For a new install, the CD40-148960-43 kit includes the NMO base and 5m cable.OverviewHow many antennas does one vehicle really need? With the RFI CD40-148960-11, the answer is one. This multiband antenna covers 148-174MHz VHF, 378-520MHz UHF and 698-960MHz in a single whip, so a multiband radio gets one clean install instead of a cluster of antennas on the roof.RFI's concentric radiator design keeps the VHF and UHF elements from fighting each other, so the pattern holds up across every band with no tuning required. This is the whip only: it screws onto an existing NMO mount, making it a straight swap for a damaged whip or an upgrade on a vehicle that already has an NMO base fitted.Key Features Four bands in one whip means one antenna serves 148-174MHz VHF, 378-520MHz UHF and 698-960MHz, for fleets moving to multiband radios. Full band, no tuning required means no cutting or field adjustment on install, for technicians fitting out a whole fleet. VSWR under 2.0:1 across more than 93.9% of the band means efficient power transfer from radio to antenna, for reliable talk-back at the edge of coverage. Concentric radiator design means VHF and UHF patterns stay clean instead of interfering, for consistent coverage whichever band is in use. Flexible moulded whip on an aluminium base means it flexes with low branches, knocks and vibration rather than snapping, for vehicles working rural and forestry tracks. Single compact profile (267mm whip) means less roof clutter and fewer holes, for utes, response vehicles and fleet cars. Applications Emergency services and volunteer response vehicles Councils, utilities and infrastructure fleets Transport and logistics fleets running multiband radios Construction, forestry and rural vehicles Organisations moving from separate VHF and UHF antennas to one multiband install What's in the Box 1 x RFI CD40 multiband whip (CD40-148960-11), whip only NMO mount and cable not included Complete Your SetupThis whip needs an NMO mount to work. If your vehicle doesn't already have one, choose the CD40-148960-43 kit, which includes the NMO base and 5m cable.Key Specifications Brand RFI Model CD40-148960-11 Frequency range 148-174MHz VHF / 378-520MHz UHF / 698-960MHz Average gain 0dBi (VHF) / 3.8dBi (378-520MHz) / 3.2dBi (698-960MHz) VSWR <2.1:1 (VHF) / <3.0:1 (378-400MHz) / <2.0:1 (400-520MHz and 698-960MHz) Power rating 50W Polarisation Vertical Tuning Supplied pre-tuned, full band, no tuning required Whip length 267mm Total height 487mm Base diameter 55mm Construction Aluminium base with flexible moulded whip Mounting NMO, 19mm (3/4") roof hole. Ground dependent: mount on a ground plane such as a metal vehicle roof Cable Not included (whip only) VSWR measured by RFI at the end of 5m of shielded RG58 on a 1 x 1.5m ground plane. Need a different VHF band? See the CD40-136960-11.Frequently Asked QuestionsIs the RFI CD40 waterproof?The RFI CD40 is built for outdoor vehicle use once the whip is properly tightened onto the NMO base. RFI advises against leaving an NMO mount exposed without an antenna fitted, as the bare mount is not waterproof.Do I need a licence to use this antenna?You don't need a licence for the antenna itself, but the radio transmitting through it does. Any radio operating on licensed VHF or UHF land mobile frequencies in NZ needs a valid Radio Spectrum Management licence, and we can help you sort that out.Which radios suit the CD40?The CD40 suits multiband vehicle radios, including DMR, P25 and TETRA models, operating within 148-174MHz VHF, 378-520MHz UHF or 698-960MHz. It also works with single-band radios in those ranges, which makes it a good future-proof choice if a fleet upgrade is coming.Does the CD40 need a ground plane?Yes. RFI specifies the CD40 as ground dependent, so it needs to be mounted on a ground plane such as a metal vehicle roof. Bare-metal contact between the mount and the roof matters too. If your install point is fibreglass or plastic, talk to us before ordering.What's the difference between the 148960 and 136960 versions?The two CD40 versions differ only in VHF coverage. The 148960 covers 148-174MHz and the 136960 covers 136-155MHz; both cover 378-520MHz and 698-960MHz UHF. Choose the one that matches your VHF channels.Will this whip fit my existing NMO mount?This CD40 whip fits a standard NMO mount. If you're unsure what's on your vehicle, send us a photo and we'll confirm before you order.Supplied, Installed and Supported From the Bay of PlentyMobile Systems Limited has been fitting vehicle radio systems from Mt Maunganui for over 25 years. We supply the CD40 NZ-wide and can install, terminate and test it on your fleet. One antenna, every band, fitted right the first time.