The SCR-277 system is a military communication device that played a significant role in World War II. It was used by the US military for secure voice communication.
Developed in the early 1940s, the SCR-277 system was designed to provide secure voice communication over long distances. It used a combination of radio and telephone technology to transmit voice messages.
The SCR-277 system was capable of transmitting voice messages over a distance of up to 100 miles. It was also relatively lightweight and portable, making it easy to transport and set up in the field.
Explore further: List of Applications of Near-field Communication
Specifications
The SCR-277 was a navigation aid that included some impressive technology for its time. It featured a BC-467 transmitter with an RF output power of 800 watts.
The transmitter was used for transmission at frequencies between 200-400 kHz. This was a significant range for its era.
The SCR-277 also included a BC-342 receiver, which had a much broader frequency range of 1.5-18 MHz for reception. This allowed it to pick up a wide range of signals.
Here are the key frequencies used by the SCR-277:
- Transmission: 200-400 kHz
- Reception: 1.5-18 MHz
The SCR-277 had a range of approximately 300 miles, making it a valuable tool for navigation.
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