LS WWVB 60kHz NIST Radio Controlled Clock, 30dB High Gain Atomic Clock Receiver IC, 100mm Antenna 1.2 to 5V Operating…

Functional Introduction:
1. Four-bit LED digital tube display screen
2. Docking port with RCC module
3. It can choose RCC reception by jumper: JJY, MSF, DCF, WWVB
4. It can select LED Display ON or OFF when RCC receives by jumper
5. 24-hour system
6. Four button operations (TIME, RCC, HR, MIN,)
7. 5.0V operating voltage
8. The product size is 72mm*26mm
9. Automatic time correction function: this module automatically receives the radio signal from 1:00 to 5:00 every day to correct the time error, so as to ensure the travel time accuracy of the radio clock.
Buttons Introduction:
1. TIME (Time Settings):
A. You can view the second bit by pressing it separately.
B. Press the button TIME + HR for adjusting hour and TIME + MIN for adjusting minute.
C. Pressing TIME key for 2 seconds during RCC reception will turn to normal time display, but RCC signal is still being received.
2. RCC (RCC Receive Key):
A. Press RCC key to receive radio signal for time calibration. B. Within 3 seconds of receiving RCC, it can withdraw from receiving. 3. HR (hours):
A. Press the button TIME + HR for adjusting hour
B. In WWVB format, the time zone can be viewed by pressing HR key alone when normal time is displayed.
C. In WWVB mode, press HR key for 2 seconds to enter the time zone setting mode in normal time, then press MIN key to adjust the time zone, after adjustment, HOUR key confirmation or 5 seconds no action automatically confirm and exit.

Note:
1. There is no MIRCO USB cable, you need to buy or equip it yourself. But the power supply of general MIRCO USB mobile adapter is suitable for our products.
2. Do not touch the crystal oscillator with your hands during LED module operation, in order to avoid the impact.
3. This batch of products are not equipped with RCC module, if necessary, you can buy: B07L3NLDBT. Thank you very much!

Please use with Radio Controlled Clock (RCC) module, and connect the port on RCC module to the RCC receiving port on DS-879X (connect V-V, TN-TN, PO-PO, G-G alphabetically, F only connect in JJY mode).
When the LED 4-Digit Display Tube Module is not connected to RCC module, it can also be used as an ordinary clock.
It use CR1220 batteries for backup batteries(not included). When backup batteries are available, after disconnecting (USB) DC5V power supply, it can keep running for a long time without display, and turn off button action and all other functions.
The first time the power supply of DC5V (USB) is plugged in, the clock surface is fully bright, and it enters the receiving state of RCC. The receiving process takes 3-10 minutes. After the successful receiving time, the receiving time is displayed, and the RCC indicator flashes. If the receiver fails to display the internal time of the recovery clock, the RCC lamp goes out, indicating that the receiver is unsuccessful.
Package: 2pcs LED 4-Digit Display Tube Module. There is no MIRCO USB cable, you need to buy or equip it yourself. But the power supply of general MIRCO USB mobile adapter is suitable for our products.