Cable
RG142
End A
F FEMALE
End B
FME FEMALE
Specs Summary
250 ft RG142 — F FEMALE to FME FEMALE
RG142 cable assembly, 250 feet, with F FEMALE and FME FEMALE connectors. Hand-assembled, tested, and ships free within the US.
250 ft — F FEMALE / FME FEMALE
$603.13
Free shipping • In stock
Other lengths:
Signal Loss — 250 ft
Approximate insertion loss for this 250 ft RG142 assembly at common RF frequencies.
| Frequency | Loss / 100 ft | Loss — 250 ft |
|---|---|---|
| 100 MHz | 3.8 dB | 9.5 dB |
| 450 MHz | 8.5 dB | 21.25 dB |
| 900 MHz | 12.5 dB | 31.25 dB |
| 1.8 GHz | 18.5 dB | 46.25 dB |
| 2.4 GHz | 21.5 dB | 53.75 dB |
| 5.8 GHz | 37 dB | 92.5 dB |
About This Assembly
RG142 Cable
RG-142 is a double-shielded 50-ohm PTFE coaxial cable rated for operation from cryogenic temperatures up to +200°C with a 0.195" outer diameter. Its dual-shield construction provides excellent EMI rejection while the PTFE dielectric ensures stable electrical performance across a wide frequency range. The preferred choice for military, aerospace, and high-power RF applications.
F Connector
The F connector is a low-cost threaded coaxial connector used almost exclusively in cable TV, satellite, and over-the-air broadcast applications. It uses the center conductor of RG-6 or RG-59 cable as the pin, which simplifies termination and reduces cost. F connectors are found on cable modems, satellite receivers, TV tuners, and distribution amplifiers.
FME Connector
FME (For Mobile Equipment) is a miniature threaded RF connector designed for mobile and vehicle-mounted antenna applications, particularly at GSM, CDMA, and FM frequencies. Its small size and robust threaded coupling make it common on vehicle-mount antenna mounts, cellular signal boosters, and mobile broadband modems.
Common Applications
This F and FME cable assembly is well suited for high-temperature and high-power military or aerospace RF assemblies. The combination of reliable F and FME 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.
Frequently Asked Questions
Is this cable hand-assembled in the USA?
Yes. Every CoaxRF cable assembly is hand-terminated and continuity tested at our US facility before shipping. We do not drop-ship pre-made cables from overseas — each cable is built to order.
Can I order a different length than 250 ft?
Yes. This page is for the 250 ft assembly. Use the length buttons above to select a different standard length, or use the Cable Builder for any custom length.
How much signal loss will I see with this 250 ft cable?
At 1800 MHz, RG142 loses approximately 18.5 dB per 100 ft. This 250 ft assembly will have roughly 46.25 dB of insertion loss at that frequency. See the signal loss table for all frequency points.
What is the maximum frequency for this assembly?
This assembly is rated DC – 2 GHz. The effective frequency limit is set by the lowest-rated component — either the cable or one of the connectors. Both F FEMALE and FME FEMALE connectors must be within spec at your target frequency.
What is your return policy?
We accept returns within 30 days of delivery. Custom-length cables are accepted as long as they are in original condition. Contact us and we will provide a prepaid return label at no charge.
