Compatible with helmets and work caps, implements four-party simultaneous communication.
We propose a solution! It will lead to improved operational efficiency! The DJ-PHM20 is a specific low-power transceiver that supports simultaneous calls for 2, 3, or 4 parties. It can also be used in conjunction with the Triplex+ series handheld device (DJ-P400) and vehicle/base type (DR-PM300SE) that support 4-party simultaneous calls. ■ Implements all 47 channels of low-power radio, supporting alternating, relay, and linked relay communications for simultaneous calls between 2, 3, or 4 parties. ■ Specifically designed for attachment to helmets and work caps, eliminating potential hazards by hooking the earphone microphone cable. ■ Uses a rubber belt for attachment to helmets, and can also be mounted on work caps. ■ The main unit meets IP66 standards for dust and water resistance. ■ Adopts a large external battery for attachment. Achieves 50 hours of talk time in alternating communication and 8 hours in multiple simultaneous communication. ■ Supports both standalone relay for alternating communication and linked relay, greatly extending communication distance. ■ Equipped with a smartphone app for settings, ACSH for automatic configuration of the current channel and group talk, and Air Clone that includes all set mode items for easy initial setup.
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basic information
Accessories: Battery pack, 2 helmet holders, 3 headbands, 2 cable clips, AC adapter Dimensions: - Wireless unit: Width 82 × Height 95 × Depth 46 mm (excluding protrusions) - Battery unit: Width 50 × Height 86 × Depth 22 mm (excluding protrusions) Weight: Approximately 186g (excluding some accessories) Dust and water resistance rating: IP66 Estimated operating time: - Intermittent relay communication: Approximately 50 hours - Linked relay: Approximately 36 hours - Two-party simultaneous communication: Approximately 11 hours - Three/four-party simultaneous communication: Approximately 8 hours *Actual times may vary significantly depending on volume and environment. Estimated communication range (for intermittent communication at 10mW/simultaneous communication with 2-4 parties continuously transmitting at 1mW): - Flat land without obstacles, like riverbanks: Intermittent communication about 200m/simultaneous communication about 100m - Areas with many obstacles, like urban areas: Intermittent communication about 50-100m/simultaneous communication about 50m - Inside buildings: Varies greatly depending on structure. Vertical layers can be a significant obstacle. *With standalone relay, the area for intermittent communication can be expanded about four times in surface area, and with linked relay, it can be expanded up to eight times in a straight direction. *Two to four-party simultaneous communication does not change significantly even at 10mW.
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Applications/Examples of results
Purpose: Communication and instructions when using work vehicles such as heavy machinery and various cranes. Examples of achievements: Construction, demolition work, infrastructure projects, quarries, etc.
Detailed information
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【Accessories】 - Battery pack - 2 helmet holders - 3 headbands - 2 cable clips - AC adapter
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【Regarding Attachment to the Helmet】 - We use a popular type of headband holder that is fitted into the edge of the helmet (see image). It may not be possible to attach it to helmets that do not accommodate this shape. - In addition to installation issues, strong winds can cause wind noise. - Please be cautious of falls in environments where the top of the head is prone to getting caught on protruding objects. - In three-way or four-way calls, the ability to communicate may be affected by the relative positions of the users, resulting in difficulties in hearing or a quieter voice.
catalog（1）
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Company information
Wedge Corporation is a company that sells and rents wireless devices, transceivers, and intercoms. We aim to be a company that customers can say, "I'm glad Wedge was there, anytime, anywhere." We sincerely respond to the diverse needs and wants in various situations and strive to remain a good partner for our customers by being fully supportive. 【Wedge's Strengths】 ■ Support anywhere in Japan ■ Top-class product and inventory numbers in the industry ■ A wide range of original Wedge products ■ Compatible with various web ordering systems ■ Solution proposals through field sales ■ Support after installation (repair maintenance, license management) Our company obtained ISMS certification at our Kyoto and Tokyo headquarters in 2021, and in 2022, we obtained Privacy Mark certification at all locations. We will continue to strive to be a company that earns the trust and confidence of our customers.
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