Cable
LMR400 Times
End A
RP-TNC FEMALE
$1.00
End B
SMA MALE
$1.00
LMR400 Times — RP-TNC FEMALE to SMA MALE
Custom LMR400 Times cable assembly with RP-TNC FEMALE and SMA MALE connectors. Every cable is hand-assembled, tested, and ships free.
| Length | Price | |
|---|---|---|
| 1 ft | $25.49 | |
| 6 ft | $35.49 | |
| 25 ft | $73.49 | |
| 50 ft | $123.49 | |
| 100 ft | $223.49 | |
| 250 ft | $523.49 | |
| 500 ft | $1,023.49 |
Specs Summary
About This Assembly
LMR400 Times Cable
LMR-400 is the industry-standard low-loss 50-ohm coaxial cable from Times Microwave with a 0.400" outer diameter, offering less than half the signal loss of RG-8 at 2.4 GHz. The go-to cable for base station feedlines, cellular repeater installations, antenna runs from 50 to 200 feet, and any fixed installation requiring reliable broadband performance.
RP-TNC Connector
RP-TNC (Reverse Polarity TNC) uses the TNC threaded shell with reversed pin conventions, similar to RP-SMA. It is used on some commercial WiFi access points and outdoor CPE antennas, particularly in older Cisco and Linksys equipment, and offers better vibration resistance than RP-SMA in demanding outdoor environments.
SMA Connector
SMA (SubMiniature version A) is the most widely used RF connector in the industry, offering a threaded interface that provides a secure, low-reflection connection from DC to 18 GHz. Its compact size, 50-ohm impedance, and broad frequency range make it the default choice for WiFi equipment, software-defined radios, cellular antennas, GPS receivers, and RF test instruments.
Common Applications
This RP-TNC and SMA cable assembly is well suited for cellular repeater installations, base station feedlines, and long outdoor antenna runs. The combination of reliable RP-TNC and SMA 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.
LMR400 Times Signal Loss
Approximate attenuation at common RF frequencies.
| Frequency | Loss / 100 ft | Loss / ft |
|---|---|---|
| 100 MHz | 1.5 dB | 0.015 dB |
| 450 MHz | 3.3 dB | 0.033 dB |
| 900 MHz | 4.7 dB | 0.047 dB |
| 1.8 GHz | 6.8 dB | 0.068 dB |
| 2.4 GHz | 7.9 dB | 0.079 dB |
| 5.8 GHz | 13 dB | 0.13 dB |
Frequently Asked Questions
What is LMR400 Times coaxial cable used for?
LMR-400 is the industry-standard low-loss 50-ohm coaxial cable from Times Microwave with a 0.400" outer diameter, offering less than half the signal loss of RG-8 at 2.4 GHz. The go-to cable for base station feedlines, cellular repeater installations, antenna runs from 50 to 200 feet, and any fixed installation requiring reliable broadband performance.
What is the signal loss of LMR400 Times?
At 1800 MHz, LMR400 Times has approximately 6.8 dB of loss per 100 ft (0.068 dB/ft).
What frequency range does this assembly support?
This assembly is rated DC – 6 GHz, limited by the lowest-rated component across the cable and connectors.
What is a RP-TNC connector?
RP-TNC (Reverse Polarity TNC) uses the TNC threaded shell with reversed pin conventions, similar to RP-SMA. It is used on some commercial WiFi access points and outdoor CPE antennas, particularly in older Cisco and Linksys equipment, and offers better vibration resistance than RP-SMA in demanding outdoor environments.
