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Small silver aluminium box with OLED display and UHF connector

Astro Gaming

Astro Gaming ATU-130 Antenna Tuner 1.8-50MHz 200W 2 in 1 accessory

SKU CH-XR4V-2HGKQ

Miniature shortwave automatic antenna tuner covering 1.8-50MHz with 200W power handling and OLED display

  • Stable RF performance from 1000 V SMD capacitors and advanced PIC chip
  • Lightweight aluminium-alloy shell provides fast heat dissipation and rugged durability
  • Automatic tuning across 1.8–50 MHz with no control cables required
  • Compact portable design suits both home and vehicle installations
  • 200 W power handling backed by 12.4 µH total inductance and heavy-gauge windings

What the tuner is and who uses it

The Astro Gaming ATU-130 is a miniature shortwave automatic antenna tuner covering 1.8 to 50 MHz with 200 W power handling. It operates from a 10-15 VDC supply and includes an OLED display. The unit suits radio operators who need automatic matching for portable or vehicle installations without running a separate control line.

The specification that decides fit

The tuner covers 1.8-50 MHz and handles up to 200 W RF power, so it matches antennas across the HF bands for typical base or mobile stations. Total inductance is 12.4 µH, and the internal capacitor is rated at 1000 V. If your transmitter exceeds 200 W or operates outside the stated frequency range, this tuner will not meet the requirement.

Installation ease and common issues

The compact aluminium-alloy shell allows portable or vehicle mounting with a single UHF connector and DC power leads; no control cable is required. Automatic tuning begins when RF is applied, so the operator only needs to supply 10-15 VDC and connect the antenna. A common issue is insufficient supply voltage or current causing the PIC-controlled matching cycle to stall, and exceeding the 200 W limit can damage the high-voltage SMD capacitor.

How it compares

Measured against everything we stock in 2-in-1 Device Accessories, at today’s prices. Recalculated every night.

Price $132.99
Pricier than about 81% of the 7,473 comparable items (median $56.99).

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Specifications

No published specifications for this item yet.

Questions about this item

What does the 200W rating mean when the tuner is connected to my radio?

The 200W rating is the maximum RF power the tuner can handle continuously; running above it risks overheating the internal capacitors and inductor.

What does the 10-15 VDC supply range cap in practice?

The tuner draws its operating voltage directly from the radio's DC output, so the 10-15 VDC window limits which radios can power it without an external supply.

What mounting options does the aluminium-alloy case provide?

The lightweight aluminium case has integrated flanges for bracket or Velcro mounting in a vehicle or on a desk.

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