Skytec STB4 UHF - 863.100 MHz Beltpack Transmitter for Wireless Systems

Skytec STB4 UHF - 863.100 MHz Beltpack Transmitter for Wireless Systems

The Skytec STB4 UHF is a fixed-channel bodypack transmitter operating on 863.100 MHz , designed to work with Skytec’s 179.165, 179.170 and 179.175 UHF wireless systems. Its <10 mW (ERP max) RF output ensures legal and efficient operation, while the threaded 3.5 mm mini jack input ensures a firm connection to headset or lavalier microphones . It features an integrated belt clip and on/off switch for quick handling in stage, presentation and educational applications. Powered by 2 x AA (3 V) batteries , it offers a lightweight (approx. 0.155 kg ; bodypack body ~ 0.08 kg ) and compact ( 100 × 65 × 28 mm ) solution with <0.5% THD for a clean signal.

Main features

• UHF 863.100 MHz fixed channel for maximum operational simplicity.
• Compatible with Skytec receivers of the 179.165 / 179.170 / 179.175 series.
• RF Output <10 mW (ERP max) : Suitable power for voice applications and typical scenarios.
• 3.5mm threaded mini jack input : secure connection to headset/lavalier microphones.
• THD <0.5% : clean and stable transmission.
• Powered by 2×AA (3 V) : easy replacement in the field.
• Belt flask format with belt clip and ON/OFF switch .
• Compact dimensions (100 × 65 × 28 mm) and low weight (~0.155 kg).

Product benefits

• Hands-free ready : ideal for presentations, teaching, fitness and amateur theater with headset or lavalier microphones.
• Secure mounting : The threaded connector prevents accidental disconnection during use.
• Easy handling : single channel and basic buttons reduce errors in events with user rotation.
• Easy maintenance : Works with standard AA batteries, available anywhere.

Compatibility and installation

For proper operation, pair the STB4 with an 863.100 MHz receiver from the indicated series (179.165/179.170/179.175). Connect a 3.5mm threaded microphone (headset or lavalier), observing polarity. Secure the unit with the belt clip , turn on with the ON/OFF switch , and check the input level on the receiver. Use quality AA batteries to maximize battery life.

Frequently Asked Questions

• Can I change the frequency? No, it's a fixed channel at 863.100 MHz . It must match the receiver.
• What microphones can I use? Any headset or lavalier microphone with a threaded 3.5mm mini jack compatible with Skytec cabling.
• What is the transmit power? <10 mW (max. ERP) , suitable for typical UHF applications.

Description for projects

Single-channel UHF fixed bodypack transmitter on 863.100 MHz ; RF output <10 mW (max. ERP) ; THD <0.5 % ; 3.5 mm threaded mini jack input ; ON/OFF switch and belt clip ; power supply 3 V (2 × AA) ; dimensions 100 × 65 × 28 mm ; weight approx. 0.155 kg (bodypack ~ 0.08 kg ); compatible with Skytec 179.165 / 179.170 / 179.175 receivers.