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Two 90 mm RG178 RP-SMA male-to-female antenna adapters

Vszerda

Vszerda 2pcs 90mm RG178 RP-SMA Male to Female Antenna Adapter

SKU CH-7KS1-2Z1XF

Two 90 mm RG178 RP-SMA male-to-female adapters extend FPV antennas with 50 Ω impedance and 0–6 GHz bandwidth

  • RG178 cable with 50 Ω impedance keeps signal loss low across 0–6 GHz
  • 90 mm flexible pigtail lets you route antennas around tight FPV frames
  • RP-SMA male-to-female connectors extend existing whip or patch antennas without re-termination
  • Teflon silver-plated conductor resists heat and acid corrosion for outdoor durability
  • Two-piece pack provides a spare link for multi-antenna diversity builds

Two-Pack 90 mm RP-SMA Antenna Extensions

This pair of RG178 coaxial cables adds 90 mm of reach between RP-SMA male and female ports. Each lead uses a 1.8 mm diameter Teflon-insulated, silver-plated conductor rated for 50 Ω impedance and operation up to 6 GHz. The military-grade RG178 construction resists high temperature and acid corrosion for durable signal integrity.

Suits tight FPV builds; not for long runs

Builders who need a short, flexible pigtail to reposition an antenna inside a compact frame will appreciate the 90 mm line length and 3.5 inch overall span. Installations that require metre-scale cable runs or a different connector gender should look at alternative solutions because these adapters are fixed at the supplied length and RP-SMA orientation.

Handles 0-6 GHz links with low loss

The 50 Ω RG178 feed line comfortably passes control and video signals across the full 0-6 GHz range while keeping attenuation low over the 90 mm cable. Beyond this length the inherent loss of the 1.8 mm diameter RG178 becomes significant, so the adapter is not intended for extended antenna relocations.

How it compares

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Price $12.99
Cheaper than about 75% of the 1,221 comparable items (median $19.99).

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Specifications

No published specifications for this item yet.

Questions about this item

What type of antenna connector must my existing antenna have to work with the RP-SMA Male end of this adapter?

Your antenna needs an RP-SMA Female connector to mate with the RP-SMA Male plug on this 90 mm RG178 extension cable.

Will the 50 Ω impedance of this RG178 cable match the 50 Ω impedance of my current FPV video transmitter and antenna?

Yes, the cable is specified at 50 Ω, so it will match standard 50 Ω FPV transmitters and antennas without introducing an impedance mismatch.

After installation, how can I confirm the extension is passing the 0–6 GHz signal with low loss?

Check that your video link remains stable at the same range and clarity as before; a healthy 90 mm RG178 run should add negligible attenuation across the 0–6 GHz band.

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