Cable
LMR240 Times
End A
RP-SMA FEMALE
$1.00
End B
SO239 UHF Female
$3.00
LMR240 Times — RP-SMA FEMALE to SO239 UHF Female
Custom LMR240 Times cable assembly with RP-SMA FEMALE and SO239 UHF Female connectors. Every cable is hand-assembled, tested, and ships free.
| Length | Price | |
|---|---|---|
| 1 ft | $23.98 | |
| 6 ft | $32.73 | |
| 25 ft | $65.98 | |
| 50 ft | $109.73 | |
| 100 ft | $197.23 | |
| 250 ft | $459.73 | |
| 500 ft | $897.23 |
Specs Summary
About This Assembly
LMR240 Times Cable
LMR-240 is a Times Microwave 50-ohm low-loss coaxial cable with a 0.240" outer diameter and excellent flexibility for its size. Designed for medium-length runs up to 75 feet, it is widely deployed in cellular infrastructure, public safety radio, GPS distribution, and anywhere a balance of low loss and easy installation is required.
RP-SMA Connector
RP-SMA (Reverse Polarity SMA) uses the SMA threaded coupling mechanism but with the male/female pin convention reversed — the jack has a pin and the plug has a socket. Originally standardized to prevent connection of uncertified antennas to consumer WiFi equipment, RP-SMA is now the dominant connector on commercial WiFi routers, access points, and 2.4/5 GHz antennas.
UHF Connector
The UHF connector (also known as PL-259 male / SO-239 female) is a large, low-cost RF connector designed in the 1930s for HF and VHF frequencies. Despite its name, its practical usable range is below 300 MHz due to its non-constant impedance design. It remains extremely popular in amateur radio (HF through VHF), CB radio, and marine radio applications.
Common Applications
This RP-SMA and UHF cable assembly is well suited for medium-length antenna runs, public safety radio, and cellular infrastructure jumpers. The combination of reliable RP-SMA and UHF connectors and custom-cut cable length makes it a practical choice for both field installations and bench setups. Every assembly is hand-terminated, continuity tested, and ships free within the USA.
LMR240 Times Signal Loss
Approximate attenuation at common RF frequencies.
| Frequency | Loss / 100 ft | Loss / ft |
|---|---|---|
| 100 MHz | 2.4 dB | 0.024 dB |
| 450 MHz | 5.3 dB | 0.053 dB |
| 900 MHz | 7.5 dB | 0.075 dB |
| 1.8 GHz | 10.8 dB | 0.108 dB |
| 2.4 GHz | 12.6 dB | 0.126 dB |
| 5.8 GHz | 20.6 dB | 0.206 dB |
Frequently Asked Questions
What is LMR240 Times coaxial cable used for?
LMR-240 is a Times Microwave 50-ohm low-loss coaxial cable with a 0.240" outer diameter and excellent flexibility for its size. Designed for medium-length runs up to 75 feet, it is widely deployed in cellular infrastructure, public safety radio, GPS distribution, and anywhere a balance of low loss and easy installation is required.
What is the signal loss of LMR240 Times?
At 1800 MHz, LMR240 Times has approximately 10.8 dB of loss per 100 ft (0.108 dB/ft).
What frequency range does this assembly support?
This assembly is rated DC – 300 MHz, limited by the lowest-rated component across the cable and connectors.
What is a RP-SMA connector?
RP-SMA (Reverse Polarity SMA) uses the SMA threaded coupling mechanism but with the male/female pin convention reversed — the jack has a pin and the plug has a socket. Originally standardized to prevent connection of uncertified antennas to consumer WiFi equipment, RP-SMA is now the dominant connector on commercial WiFi routers, access points, and 2.4/5 GHz antennas.
