Specifications

The module must be installed in the host equipment such that at least 5mm is maintained between
the antenna and users’ body; and if RF exposure statement or module layout is changed, then the
host product manufacturer required to take responsibility of the module through a change in FCC
ID or new application. The FCC ID of the module cannot be used on the final product. In these
circumstances, the host manufacturer will be responsible for re-evaluating the end product
(including the transmitter) and obtaining a separate FCC authorization.
2.7 Antennas
Antenna Specification are as follows:
Type: ANT A: PCB Antenna
ANT B: Chip Antenna
Gain: WiFi 2.4G: 4.1 dBi (PCB ANTA) , 1 dBi (Chip ANTB)
BLE: 4.1 dBi (PCB ANTA) , 1 dBi (Chip ANTB)
WIFI 5.1G: 3.6 dBi (PCB ANT) , 4 dBi (Chip ANT)
WIFI 5.8G: 2.1 dBi (PCB ANT) , 4 dBi (Chip ANT)
This device is intended only for host manufacturers under the following conditions:
The transmitter module may not be co-located with any other transmitter or antenna;
The module shall be only used with the internal antenna(s) that has been originally tested and
certified with this module. The antenna must be either permanently attached or employ a ‘unique’
antenna coupler.
As long as the conditions above are met, further transmitter test will not be required. However, the
host manufacturer is still responsible for testing their end-product for any additional compliance
requirements required with this module installed (for example, digital device emissions, PC
peripheral requirements, etc.).
2.8 Label and compliance information
Host product manufacturers need to provide a physical or e-label stating “Contains FCC ID:
Z4TSEEED8720DN” with their finished product.
2.9 Information on test modes and additional testing requirements
Operation Frequency: WiFi 2.4G: 802.11b/ g/ n(HT20) 2412-2462MHz
802.11n(HT40) 2422-2452MHz
BLE: 2402-2480MHz
WiFi 5.1G: 5180MHz~5240MHz
WiFi 5.8G: 5745MHz~5825MHz
Number of Channel: WiFi 2.4G: 11 Channels for 802.11b/ g/ n(HT20)
7 Channels for 802.11n(HT40)
BLE: 40 Channels
WiFi 5.1G: 4 Channels for 802.11a
WiFi 5.8G: 5 Channels for 802.11a
Modulation: WiFi 2.4G: 802.11b CCK; 802.11g/n OFDM
BLE: GFSK
WiFi 5.1G: OFDM with BPSK/QPSK/16QAM/64QAM/256QAM