Amplifier Research 20S4G18 Microwave Amplifier Repair and Calibration

$245.00 evaluation fee

🛡️ 90-Day Warranty ✓ Fee Credited to Repair ⚡ No Forms Needed

Certified Amplifier Research 20S4G18 repair — fast turnaround, 90-day warranty included. Common issues include overcurrent protection trips and cooling fan failure.

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📋 How It Works

Submit Request – Pay evaluation fee & provide equipment details
Ship to Us – Send your equipment to our Oregon facility
We Evaluate – Detailed diagnosis & repair estimate
Fee Credited – Your evaluation fee applies to repair cost
We Repair – Professional repair with 90-day warranty

🔧 Fast Turnaround: Most repairs are completed within 1–3 business days.
📏 Precision Calibration: NIST-traceable calibrations included for most repairs.
🛡️ Warranty: 90-day warranty on all repairs.
📝 Transparency: Detailed evaluation and repair estimate before work begins.

✓ Evaluation Fee Credited Toward Repair

This evaluation fee is applied as credit toward your final repair cost. After we evaluate your equipment, you'll receive a detailed estimate before any repair work begins.

Description

Amplifier Research 20S4G18 Microwave Amplifier Repair and Calibration

The Amplifier Research 20S4G18 is a solid-state microwave power amplifier — 20 W covering the 4–18 GHz band, used to drive EMC radiated-immunity testing and microwave applications. As an RF amplifier, its faults concentrate in the RF output stage, the power supply, and thermal management — not the low-voltage power-supply faults its category label implies.

June Company repairs and calibrates the AR 20S4G18 for EMC test labs and RF engineering teams.

Common AR 20S4G18 problems we fix

Overcurrent-protection trips — the amp tripping into protection, repaired so it runs without nuisance shutdowns.
Cooling-fan failure — a failed fan leading to thermal shutdown, replaced.
Low or no RF output — output-module or driver-stage failure, repaired so it delivers rated power across 4–18 GHz.
Gain flatness off — gain drift across the band, recalibrated.
Control or interface faults.

FAQs

My 20S4G18 keeps tripping or overheating — fixable? Yes. Protection and cooling faults are repairable, and we verify rated power and gain across the band, with a NIST-traceable certificate.

Is gain flatness verified? Yes — checked across 4–18 GHz against our standards.

Every repair includes NIST-traceable calibration and a 90-day parts-and-labor warranty. Email us or submit a service request.

Brand

Amplifier Research Repair

Amplifier Research power supplies and power analyzers are part of our regular repair and calibration work. Amplifier Research repairs by instrument type: Power Supply Repair and Power Analyzer Repair. Amplifier Research units on our list include the Amplifier Research 1000A225 RF Amplifier, Amplifier Research 1000A250 RF Amplifier and Amplifier Research 1000A400 RF Amplifier. Each power supply from Amplifier Research leaves with NIST-traceable calibration and a 90-day warranty. You approve a firm Amplifier Research quote before work begins.

Shipping & Returns

Packing your equipment. You are responsible for packaging equipment adequately for transit. We strongly recommend the original manufacturer’s case, or double-boxing with at least two inches of shock-absorbing material on all six sides. We return your equipment in the packaging it arrived in, so please send it in packaging that will survive the return trip as well. If your packaging is damaged or inadequate for the return, we will substitute suitable packaging and may charge the cost of materials.

Insurance. Equipment is not insured by June Company while in transit. We strongly recommend insuring your shipment for its full replacement value.

Risk of loss. Risk of loss remains with you until your equipment is received at our facility, and transfers back to you when your repaired unit is delivered to the carrier (F.O.B. shipping point). June Company is not responsible for equipment lost, delayed, misdelivered, or damaged in transit, in either direction.

Return label. A prepaid and preprinted return shipping label should be included with your shipment. If one is not included, we will provide one.

Transit damage. Damage occurring in transit is the responsibility of the carrier. It is not a warranty defect and is not covered by the 90-day repair warranty. Any claim must be filed by you with the carrier; we will supply photographs and documentation to support it at no charge.

Full details: Terms & Conditions, Section 6 · Return Policy