Wireless Voice & Data Equipment

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Handheld cellular and satellite phones typically consume less than 5 W on average, requiring less than 120 Wh of energy per day, which is typically provided by internal batteries and/or external battery packs.
Read more about Cellular and Satellite Phones.

Land mobile and HF radio systems are used for two-way voic communication services in remote and off-grid areas, low-bandwidth email, internet and bulletin board system (BBS) access; and public safety and security networks. The main component in terms of power consumption is the transceiver, consuming bewteen 160 and 320 W while transmitting.
Read more about Land Mobile and HF Radio.

Wireless LAN systems based on 802.11b systems (also known as WiFi) are required by regulators to have low output power so as to limit the range and reduce potentially harmful interference with other systems. As a result, they input power is also low - less than two Watts for most PC cards, and typically 4-7 W for access points.
Read more about WiFi / Spread Spectrum.

A typical VSAT can draw around 60 W. Low-power VSAT models for rural telephony can consume 30 W on average.
Read more about VSAT.