25 ft RG402_BLUE — RP-SMA FEMALE to SMA MALE
Custom low loss 25 ft RG402_BLUE RF coaxial cable assembly with RP-SMA FEMALE and SMA MALE connectors.
Cable
RG402_BLUE
End A
RP-SMA FEMALE
End B
SMA MALE
Specs Summary
Made in USA
Assembled and tested in-house
Free Shipping
Fast, reliable delivery
Tested & Verified
Every cable tested before shipping
Easy Returns
30-day hassle-free returns
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About This Assembly
Specs Summary
RG402_BLUE Cable
RG-402 Blue is identical in electrical specification to standard RG-402 but features a blue outer jacket for easy visual identification in multi-cable lab setups. Color coding simplifies cable management on test benches and helps prevent mix-ups in complex wiring harnesses or rack-mounted equipment.
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.
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-SMA and SMA cable assembly is well suited for color-coded lab setups and test bench cable management. The combination of reliable RP-SMA 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.
Signal Loss — 25 ft
Approximate insertion loss for this 25 ft RG402_BLUE assembly at common RF frequencies.
| Frequency | Loss / 100 ft | Loss — 25 ft |
|---|---|---|
| 100 MHz | 3.5 dB | 0.88 dB |
| 450 MHz | 7.5 dB | 1.88 dB |
| 900 MHz | 10.8 dB | 2.7 dB |
| 1.8 GHz | 15.5 dB | 3.88 dB |
| 2.4 GHz | 18.5 dB | 4.63 dB |
| 5.8 GHz | 30 dB | 7.5 dB |
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 25 ft?
Yes. This page is for the 25 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 25 ft cable?
At 1800 MHz, RG402_BLUE loses approximately 15.5 dB per 100 ft. This 25 ft assembly will have roughly 3.88 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 – 18 GHz. The effective frequency limit is set by the lowest-rated component — either the cable or one of the connectors. Both RP-SMA FEMALE and SMA MALE 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.
