Quick Reference
RFC195 Coaxial Cable
50 Ohm • DC – 6 GHz
RFC-195 is a budget-friendly 50-ohm coaxial cable with a 0.195" outer diameter that provides good performance for short-to-medium runs at a lower price than LMR-195. Suitable for antenna jumpers, two-way radio leads, and WiFi access point connections up to 30 feet where cost efficiency is the primary consideration.
RFC195 Attenuation
Signal loss in dB per 100 ft at standard RF frequencies.
| Frequency | Loss / 100 ft | Loss / ft | 6 ft | 25 ft | 50 ft | 100 ft |
|---|---|---|---|---|---|---|
| 100 MHz | 3.3 dB | 0.033 dB | 0.2 dB | 0.83 dB | 1.65 dB | 3.3 dB |
| 450 MHz | 7.2 dB | 0.072 dB | 0.43 dB | 1.8 dB | 3.6 dB | 7.2 dB |
| 900 MHz | 10.4 dB | 0.104 dB | 0.62 dB | 2.6 dB | 5.2 dB | 10.4 dB |
| 1.8 GHz | 15.1 dB | 0.151 dB | 0.91 dB | 3.78 dB | 7.55 dB | 15.1 dB |
| 2.4 GHz | 17.7 dB | 0.177 dB | 1.06 dB | 4.43 dB | 8.85 dB | 17.7 dB |
| 5.8 GHz | 29.4 dB | 0.294 dB | 1.76 dB | 7.35 dB | 14.7 dB | 29.4 dB |
RFC195 Power Handling
Approximate maximum continuous power (CW) at 25°C ambient.
| Frequency | Max Power (W) |
|---|---|
| 100 MHz | 100 W |
| 450 MHz | 45 W |
| 900 MHz | 30 W |
| 1.8 GHz | 20 W |
| 2.4 GHz | 17 W |
| 5.8 GHz | 9 W |
Construction & Materials
Center Conductor
Bare copper clad steel, 1.12mm
The center conductor carries the RF signal. Material and diameter affect DC resistance, skin effect losses, and overall attenuation.
Dielectric
Foamed PE
The dielectric insulator separates the center conductor from the shield. PTFE dielectrics offer superior temperature stability and lower loss versus polyethylene.
Shield
Aluminum foil + tinned copper braid
The outer conductor provides the return path and shields the signal from external interference. More braid coverage means better EMI rejection.
Jacket
PVC
The outer jacket protects the cable from physical damage, UV, chemicals, and moisture. PTFE and FEP jackets handle higher temperatures than PVC.
Velocity Factor
83% (c)
How fast the signal travels relative to the speed of light in vacuum. Higher velocity factor means shorter electrical wavelength per foot — important for phased array and delay-matched applications.
Max Voltage
600 VRMS
The maximum continuous operating voltage. Exceeding this can cause dielectric breakdown. Relevant for high-power transmitters and pulse applications.
Available RFC195 Assemblies
Choose a connector combination to see pricing and order. All assemblies are hand-built and ship free within the USA.
SMA MALE to SMA MALE
From $8.99
SMA FEMALE to SMA MALE
From $8.99
RP-SMA MALE to SMA MALE
From $8.99
RP-SMA FEMALE to SMA MALE
From $8.99
N MALE to SMA MALE
From $9.49
N FEMALE to SMA MALE
From $9.49
BNC MALE to SMA MALE
From $9.99
MCX MALE to SMA MALE
From $8.99
RP-TNC MALE to SMA MALE
From $8.99
SMA MALE to TNC MALE
From $8.99
F MALE to SMA MALE
From $9.99
F FEMALE to SMA MALE
From $9.99
FME MALE to SMA MALE
From $9.99
FME FEMALE to SMA MALE
From $9.99
PL259 UHF Male to SMA MALE
From $10.99
SMA MALE to SO239 UHF Female
From $10.99
BNC FEMALE to SMA MALE
From $9.99
SMA MALE to TNC FEMALE
From $8.99
153 more configurations available on the RFC195 page.
Frequently Asked Questions
What is the impedance of RFC195?
RFC195 is a 50 Ohm coaxial cable. All standard RF systems (antennas, transceivers, test equipment) use 50-ohm impedance, so RFC195 connects directly without any matching network.
What frequency range does RFC195 support?
RFC195 is rated DC – 6 GHz. At higher frequencies, the attenuation per foot increases, so actual usable range depends on acceptable signal loss for your application.
How much signal loss does RFC195 have?
RFC195 has 3.3 dB of attenuation per 100 ft at 100 MHz, rising to 29.4 dB per 100 ft at 5.8 GHz. Use the attenuation table above to calculate loss for any specific length and frequency.
Are CoaxRF RFC195 cable assemblies made in the USA?
Yes. Every RFC195 assembly is hand-terminated and continuity tested at our US facility. We build each cable to order — nothing is pre-made or drop-shipped from overseas.
Can I order a custom length of RFC195?
Yes. In addition to our standard lengths (1, 6, 25, 50, 100 ft and longer), we accept custom-length orders through the Cable Builder. Custom assemblies ship within 1–2 business days.