Cable
1.37
End A
MCX MALE
End B
RP-TNC MALE
Specs Summary
1 ft 1.37 — MCX MALE to RP-TNC MALE
1.37 cable assembly, 1 feet, with MCX MALE and RP-TNC MALE connectors. Hand-assembled, tested, and ships free within the US.
1 ft — MCX MALE / RP-TNC MALE
$10.87
Free shipping • In stock
Other lengths:
Signal Loss — 1 ft
Approximate insertion loss for this 1 ft 1.37 assembly at common RF frequencies.
| Frequency | Loss / 100 ft | Loss — 1 ft |
|---|---|---|
| 100 MHz | 7.8 dB | 0.08 dB |
| 450 MHz | 16.5 dB | 0.17 dB |
| 900 MHz | 24 dB | 0.24 dB |
| 1.8 GHz | 35 dB | 0.35 dB |
| 2.4 GHz | 41 dB | 0.41 dB |
| 5.8 GHz | 67 dB | 0.67 dB |
About This Assembly
1.37 Cable
1.37mm coaxial cable is a miniature 50-ohm cable slightly larger than 1.13mm, balancing compact size with improved power handling and lower signal loss. Used for internal antenna leads in smartphones, routers, and IoT devices where the 1.13mm cable would be too lossy but space constraints still prohibit larger coax.
MCX Connector
MCX (Micro Coaxial) is a snap-on RF connector approximately 30% smaller than SMB, designed for compact equipment requiring frequent connections in a small footprint. Rated to 6 GHz, MCX is commonly used in GPS receivers, automotive telematics modules, handheld communication devices, and compact measurement instruments.
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.
Common Applications
This MCX and RP-TNC cable assembly is well suited for internal antenna leads in routers, smartphones, and compact IoT devices. The combination of reliable MCX and RP-TNC 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 1 ft?
Yes. This page is for the 1 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 1 ft cable?
At 1800 MHz, 1.37 loses approximately 35 dB per 100 ft. This 1 ft assembly will have roughly 0.35 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 – 6 GHz. The effective frequency limit is set by the lowest-rated component — either the cable or one of the connectors. Both MCX MALE and RP-TNC 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.
