Final answer:
Search and Rescue (SAR) communications use specified frequencies, typically in the VHF and UHF bands. While TV channels also use VHF and UHF, SAR operations would have designated frequencies within these ranges for communications.
Step-by-step explanation:
SAR (Search and Rescue) communications are typically conducted using frequencies specified for such purpose. Although the frequencies used can vary depending on the region and the available equipment, generally VHF (Very High Frequency) and UHF (Ultra High Frequency) are the common bands used for SAR operations. VHF and UHF bands are referred to in relation to television channels, where VHF channels utilize frequencies in the range of 54 to 88 MHz and 174 to 222 MHz, whereas UHF channels use an even higher frequency range of 470 to 1000 MHz.
For SAR communications, VHF and UHF bands offer advantages such as relatively good range and the ability to penetrate through obstacles, which are critical in search and rescue scenarios. However, without the specific SAR frequency bands provided in the question, it is not possible to determine the exact frequency range SAR comms would use. In emergency situations, it's vital to use the frequencies designated for SAR operations by the relevant authorities.