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ABOUT US



At Jamtesters, we design and build topquality aviation headset testers engineered for precision, reliability, and realworld performance. Our mission is simple: to give aviation technicians, pilots, and maintenance teams the tools they need to verify communication equipment quickly, accurately, and confidently.


With years of experience in aviation support and headset testing technology, we’ve developed a product line that covers every operational need — from routine checks to advanced diagnostic testing. Each Jamtesters device is built with durability, clarity, and ease of use in mind, ensuring dependable results whether you’re in the hangar, on the ramp, or in the field.


We are committed to continuous improvement, safety, and innovation. By combining robust engineering with userfocused design, Jamtesters has become a trusted name for professionals who demand accuracy and efficiency in their communication systems, while maintaining unbeatable pricing. Innovation, Reliability, and Custom Engineering.


Jamtesters is a global manufacturer of professional Aviation Helmet and Headset Testers, trusted by Security Forces, Airlines, Aviation Ramp Operators, Airport Handling Companies, Ground Support Teams, Flight and ATC Simulation Centers, Flying Schools, Aero Clubs, MRO facilities, Avionics Repair Shops, Aviation Headset Repair Centers, Pilot Shops, and many other aviationrelated organizations worldwide.


In our Products section, you will find a selection of our most popular testers. If you do not see the exact tester you need, we will design and manufacture it for you. Custom solutions are a core part of our identity — we build testers that match the specific requirements of your aircraft, your headsets, and your operational workflow.


Our product Line:


HT4 Test Set – Our flagship model. Tests high and lowimpedance helicopter helmets and headsets with U174/U plugs, as well as highimpedance fixedwing headsets using Lemo, XLR5, or twinplug connectors. It also supplies voltage for ANR headsets and measures current consumption.


HT4 — SPLTEST Function

The HT4 includes a dedicated SPLTEST mode, designed to evaluate microphone sensitivity by measuring its response to controlled soundpressure levels. In this mode, the HT4 uses its VU meter to display the microphone’s output level, allowing precise comparison between microphones of the same type. This function is essential for determining whether a microphone is operating within its expected sensitivity range or has degraded due to age, capsule damage, wiring issues, or environmental wear.


This capability makes the HT4 stand out in its category: it is the only device that performs this type of direct and comparative microphone sensitivity test.

 

In addition to SPLTEST, the HT4 provides:


  • Microphone fidelity testing, amplifying the mic signal under normal speech conditions and routing it to the headphones or frontpanel speaker.

  • Headphone testing using either an external microphone or the internal 1 kHz sinewave generator.

  • Testing of mono and stereo headphones, PTT switches, and extension cables.

  • Testing of wireless and ANR headsets, including currentconsumption monitoring capability and currentoverload protection. An audible alarm is triggered in that case.

The HT4 operates from an external AC power adapter (90–240 VAC, 50/60 Hz) and is available with USA, UK, Canadian, or EU plugs.


HT3 H/L

A costeffective unit for fast testing of high and lowimpedance helicopter helmets, aviation headsets, extension cables, and microphone sensitivity.


HT3

Dedicated exclusively to highimpedance testing for ground support, mechanics, pushback operations, and fixedwing headsets.


HT2 H/L & HT2

Compact, affordable “go/nogo” testers designed for quick troubleshooting and fault isolation in wired or wireless helicopter and ground crew configurations.

 

Helmet Testers

Custombuilt lowimpedance testers for military and civilian flight helmets, including mic amplifiers, earphones, and NV microphone lights.


IFE Headphone Testers

Specialized testers for commercial airline InFlight Entertainment systems, supporting ARINC A2, C1, D2, C2, and modified triplepin configurations. If you do not find the specific tester you need, please contact us — we will design and manufacture it for you.