PCTEL NMO58UCP NMO Antenna Mount Kit - Complete Vehicle Installation Solution
The PCTEL Maxrad NMO58UCP is a professional-grade permanent vehicle antenna mount designed for Motorola-style mobile antennas operating from 0 to 960 MHz. This complete installation kit includes everything needed for a secure, weatherproof antenna mounting solution on vehicle roofs, trunks, or other flat metal surfaces.
Complete Installation Kit
This kit provides a turnkey solution for mobile antenna installations. The high-quality brass mount body ensures excellent RF conductivity and long-term durability, while the included 17-foot length of RG-58/U coaxial cable provides flexibility for routing through your vehicle to the radio location. The pre-installed silver-plated crimp UHF (PL-259) connector ensures reliable, low-loss connection to your mobile radio equipment.
Professional-Grade Construction
The NMO58UCP features a solid brass mount construction with gold-plated contact surfaces for superior electrical conductivity and corrosion resistance. The mount uses the industry-standard NMO (New Motorola) thread pattern with 1-1/8 inch-18 TPI threading, ensuring compatibility with a wide range of mobile antennas from PCTEL, Larsen, Laird, and other major manufacturers. The mounting base is designed for permanent installation through a 3/4 inch hole with a secure coupling nut and sealing washer to prevent water intrusion.
Technical Specifications
- Mount Type: NMO permanent roof mount
- Frequency Range: 0-960 MHz (VHF/UHF/800 MHz coverage)
- Thread Size: 1-1/8 inch-18 TPI (standard NMO)
- Mounting Hole: 3/4 inch diameter required
- Cable Type: RG-58/U coaxial (50 ohm)
- Cable Length: 17 feet
- Connector: UHF male (PL-259) silver-plated crimp
- Mount Material: Brass with gold-plated contacts
- Maximum Power Handling: Suitable for typical mobile radio applications
- Impedance: 50 ohms
- Weather Rating: Weatherproof when properly installed
Compatible Applications
This NMO mount is ideal for a wide variety of mobile radio applications including public safety communications, amateur radio (ham radio), commercial two-way radio systems, taxi and fleet communications, marine mobile installations, and emergency services vehicles. The broad frequency coverage from 0-960 MHz makes it suitable for VHF low band, VHF high band, UHF, and 800 MHz antenna systems.
What's Included
- Brass NMO mount body with gold-plated contact
- 17 feet of RG-58/U coaxial cable (pre-attached)
- Silver-plated UHF male connector (PL-259) installed on cable
- Coupling nut for secure mounting
- Nylon insulator washer
- Installation instructions
Installation Overview
Installation requires drilling a 3/4 inch hole through the vehicle roof or mounting surface. The package label provides clear installation steps: measure and mark the mounting location (NMO and stud are 3/4 inch, rear axle and RATM are 3/8 inch or 3/4 inch, MTPM is 5/8 inch), route the cable from inside the vehicle and feed through the mounting hole, insert the lubricated O-ring in the groove on the underside of the coupling nut, and tighten the coupling nut securely over the mount. Proper installation with the included O-ring ensures a watertight seal.
The 17-foot cable length accommodates most vehicle installations, allowing routing through the roof, down the A-pillar, and to dashboard-mounted radio equipment. For optimal performance, avoid sharp bends in the coaxial cable and keep it away from sources of electrical interference.
Quality and Compatibility
PCTEL (formerly Maxrad) is a trusted name in mobile antenna solutions with decades of experience providing reliable RF connectivity products for commercial, public safety, and amateur radio markets. This mount accepts any standard NMO-threaded antenna, making it compatible with virtually all Motorola-pattern mobile antennas available on the market.
Performance Notes
While RG-58/U cable is suitable for most mobile applications, users should be aware that this cable type has higher signal loss compared to larger diameter cables like RG-8X or LMR-240, particularly at UHF and 800 MHz frequencies. For maximum performance in high-power or long cable run applications, consider upgrading to a low-loss cable assembly. However, for typical 25-50 watt mobile installations with the included 17-foot run, RG-58/U provides perfectly acceptable performance.
About PCTEL
PCTEL is a leading global provider of antenna and wireless network testing solutions. The company's antenna products serve public safety, utilities, transportation, commercial wireless, and industrial IoT markets worldwide, delivering reliable RF connectivity solutions that professionals depend on.
