1 / 6fmuser RG8U 50 ft Coaxial Cable
The fmuser RG8U is a 50-foot coaxial cable listing for radio and antenna connections. The manufacturer describes dual shielding and a PVC jacket, but the product title's N-male-to-N-male connectors conflict with the details field, which says “No, Pl259.” Verify connector type and the mating equipment before purchase.
At a glance
- Listed at 50 feet for runs between radio equipment and an antenna or test accessory.
- The manufacturer claims dual shielding to reduce interference and transmission loss.
- A PVC outer jacket is described, with UV resistance and weatherproofing listed as features.
Reference price: $59.90
Price checked: Nov 14, 2026
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Pros and cons
Pros
- The 50-foot length and stated radio, antenna, SWR meter and dummy-load uses cover a range of common RF setups.
- The stated dual-shield construction and PVC jacket may suit installations where shielding and an outdoor-oriented covering are desired.
Technical specifications
16 specifications| Brand | fmuser |
|---|---|
| Model | RG8U |
| Weight listed | 1 kg |
|---|
| Cable type | Coaxial |
|---|---|
| Length | 50 feet |
| Outer material | Polyvinyl Chloride (PVC) |
| Color | Black |
| Shape | Round |
| Indoor or outdoor use | Indoor, Outdoor |
| Connector type in details | No, Pl259 |
|---|---|
| Connector gender | Male-to-Male |
| Compatible devices | CB Radio, FM Transmitter |
| Recommended uses | FM Transmitter, CB Radio, HAM Radio, VHF Radio, SWR Meter, Dummy Load, Antenna |
| Maximum voltage | 3000 volts |
|---|---|
| Loss figures for 50ft | 30Mhz 0.43dB 100Mhz 0.79dB 200Mhz 1.14dB 400Mhz 1.69dB 700Mhz 2.32dB 900Mhz 2.68dB 1300Mhz 3.34dB 1900Mhz 4.21dB 2600Mhz 5.12dB 6000Mhz 8.87dB |
| Electrical and installation specifications | Impedance 50±2Ω (Ohm) Peak Power 3.5KW Frequency Range 0~11Ghz Capacitance 105.6±2PF/M Velocity 65.9% Sheath Spark (V,RMS) 3000V Working Temperature -40~80℃ Minimum bending radius 4in Maximum pulling force 58Ib Screening attenuation 90dB VSWR ≤1.2/0~3Ghz Sheath Marking RG-8/U |
What to know before buying
Listing details to confirm
Listing details conflict: the title says N-male to N-male, while the connector-type field says “No, Pl259.” Male-to-male gender is also listed, but exact connector ends are unconfirmed. Confirm the actual ends and compatibility before ordering. The claimed replacement compatibility for RG-213, LMR400 and 7D-FB is not accompanied by supporting equivalence details, so do not assume identical performance or fit.
What’s in the box
Included- 50 ft coaxial cable
Who is it for?
A good fit for
- Radio and antenna setups that need a 50-foot coaxial run and whose required connector ends are confirmed to match.
- Buyers considering a cable for CB, amateur, VHF or FM radio, or for an SWR meter or dummy load.
Less suited to
- Buyers who need a definitively specified connector type without confirming the selected listing.
- Setups requiring a cable whose performance equivalence to RG-213, LMR400 or 7D-FB has been established.

Frequently asked questions
What connectors does this cable have?
The title states N-male to N-male, but the connector details say “No, Pl259.” The listing does not establish which ends the selected cable has, so confirm before buying.
How long is the cable?
The listing gives a length of 50 feet, also described as 50 ft in the title.
What equipment is it intended for?
The listing names CB, amateur, VHF and FM radio, antennas, SWR meters and dummy loads. Check connector fit and the equipment's requirements.
Is it suitable for outdoor use?
The listing specifies indoor and outdoor use and describes the jacket as UV-resistant and weatherproof. These are manufacturer claims, not independently verified performance.

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