14 Description TB7300 Installation and Operation Manual
© Tait International Limited December 2022
1.3 Frequency Bands and Sub-bands
Much of the circuitry in the base station is common to all frequency bands,
and is therefore covered by a single description in this manual. In some
cases the descriptions refer to specific bands or sub-bands, and these are
identified with the letters listed in the following table.
Frequency
Identification
Frequency Band and Sub-band 35W 40W 50W
B band B1 = 136MHz to 174MHz
B3 = 148MHz to 174MHz
✗
✗
✗
✗
✓
✓
H band H3 = 470MHz to 520MHz
H5 = 400MHz to 470MHz
a
a. The 406 to 406.1 MHz frequency range is reserved worldwide for use by distress
beacons. It is not legal to program transmitters to operate in this frequency range.
✗
✗
✓
✓
✗
✗
K band
b
b. In Brazil, for K band, the TB7300 is considered to be configured as a base
station with retransmission of receive frequencies.
K4 = 762MHz to 870MHz
c
c. The actual frequency coverage in this band is:
Transmit: 762MHz to 776MHz, and 850MHz to 870MHz
Receive: 792MHz to 824MHz
✓✗ ✗
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