AKG WMS40MINSTRSETISM1 - UHF Instrument Band ISM 1 863.100 MHz Wireless System with Beltpack and Receiver

AKG WMS40 Mini Instrument Set ISM1 - UHF Wireless Instrument System with PT40 Mini Bodypack and SR40 Mini Receiver (863.100 MHz)

The AKG WMS40 Mini Instrument Set ISM1 is a fixed-channel UHF wireless system designed for guitar, bass and other instruments , with plug & play setup and up to 30 hours of battery life on a single AA battery. This ISM1 version operates on 863.100 MHz (license-free band in Europe) and includes the SR40 Mini receiver with 6.3 mm jack output and level control, the PT40 Mini bodypack with 3-pin mini XLR input and the AKG MKG L instrument cable (mini XLR ↔ 6.3 mm TS jack). HDAP compansion technology ensures clear and stable sound in real-world applications.

The radio link employs FM modulation with an audio bandwidth of 40 Hz–20 kHz and typical values ​​of THD 0.8 % at 1 kHz and S/N 110 dB(A) . The non-diversity receiver is optimized for short/medium ranges and offers three LED indications ( POWER , RF OK and AF CLIP ). The bodypack transmitter incorporates gain control to match the instrument signal and is powered by 1×AA . The set includes a switching power supply with international adapters and an AA battery for immediate use.

Main features

• ISM1 (863.100 MHz) fixed channel version , ready for use in the European unlicensed band.
• PT40 Mini belt pack with 3-pin mini XLR input and gain control ; up to 30 hours on 1 x AA battery.
• SR40 Mini receiver with 6.3 mm jack output , volume control and POWER / RF OK / AF CLIP LEDs .
• AKG MKG L cable included: mini XLR (beltpack) ↔ 6.3 mm TS jack (instrument).
• Audio 40 Hz–20 kHz , THD 0.8% (typ.), SNR 110 dB(A) (typ.); HDAP compansion.
• Plug & play : quick assembly, SMPS 100–240 V power supply with international adapters.

Product benefits

• True wireless mobility for guitar/bass, with very high autonomy and consistent sound.
• Instant start-up : ISM1 fixed channel and simple controls, ideal for rehearsals, bowling and education.
• Direct integration : 6.3 mm jack output to mixer/speaker; instrument-specific MKG L cable included.
• Clean signal thanks to the HDAP compander and clear LED indication on the receiver.

Use cases

• Guitar and bass on small stages, rehearsal rooms, schools, and places of worship.
• Instruments with pickups (e.g., electric violin) and pedalboards /racks that require freedom of movement.

Frequently Asked Questions

• What's included in the set? SR40 Mini receiver, PT40 Mini beltpack, MKG L cable , SMPS power supply with adapters, and 1 AA battery .
• What is the typical range? Suitable for short/medium distances in line of sight (non-diversity use).
• Can I use multiple systems at the same time? Yes, by combining different frequencies from the WMS40 Mini family (e.g., ISM1/ISM2/ISM3) to avoid interference.

Description for projects

Analog UHF wireless instrument system. ISM1: 863.100 MHz (fixed channel). FM modulation; audio 40 Hz–20 kHz ; THD 0.8 % typ.; S/N ratio 110 dB(A) typ. SR40 Mini receiver : 6.3 mm jack output , volume control, POWER / RF OK / AF CLIP LEDs, no diversity . PT40 Mini transmitter : mini XLR-3 input, gain control , 1×AA power supply, up to 30 h . Includes MKG L cable (mini XLR ↔ 6.3 mm jack) and 100–240 V SMPS power supply with adapters.