TM8100/TM8200 Service Manual Introduction 15© Tait Electronics Limited June 20061.1 Frequency BandsThe radios are available in the following frequency bands:■ 66 to 88MHz (A4)■ 136 to 174MHz (B1)■ 174 to 225MHz (C0)■ 216 to 266MHz (D1)■ 400 to 470MHz (H5)■ 450 to 530MHz (H6)■ 450 to 520MHz (H7)The frequency bands are implemented by different main boards in the radiobody. The control heads are identical for all frequency bands.1.2 RF Output PowerThe radio bodies are available with 40W/50W and 25W RF output power.The two RF output power options are implemented by different mainboards in the radio body, mechanically different radio bodies, and differentpower connectors. The control heads are identical for all RF outputpower options.The 40W/50W radio is available in the following frequency bands:■ B1 (50W)■ H5 (40W)■ H7 (40W)The 25W radio is available in the following frequency bands:■ A4■ B1■ C0■ D1■ H5■ H6