frequencies and channels in a sentence

1. These changes may not be compatible with the frequencies and channel sizes required for operating traditional MMDS or DOCSIS based equipment.
2. The name originates from UHF 31, the frequency and channel number reserved for analogue broadcasts by metropolitan community television stations.
3. The majority of countries using PAL have television standards with 625 lines and 50 fields per second, differences concern the audio carrier frequency and channel bandwidths.
4. MediaCorp Channel 8 was formerly known as the Eight Frequency and Channel U were both locked in a fierce ratings battle, with each station releasing statistics indicating that they are prevailing over the other station.
5. It's difficult to find frequencies and channels in a sentence.