MDVR-4F3AHD mini (LAN/WiFi/GPS)
- 32 -
Q: is there a deviation in the geographic location of GPS in the map mountain?
Answer: if the GPS module has said positioning signal effectively, a lot of problems cause deviation,
government restrictions, error and GPS signal interruption; the actual satellite map for security reasons is the
deviation, the general map using GPS correction can solve the problem.
3G/4G Wireless module related issues
Q: if you dial the 3G wireless module, what do you need to pay attention to?
Answer: 1., select the built-in wireless module WCDMA or EVDO, the corresponding module settings are
different, different models support different modules, so please confirm whether your module corresponds to
SIM. Do not use the WCDMA's machine to use the telecom SIM card
2. server IP and port settings are correct, 3G/4G signal intensity is sufficient dialing, query whether 3G/4G
is dialing successfully
3. when dialing is not successful, please check whether the 3G/4G antenna is in good contact. The signal is
very weak and can not dial the number; in addition, the SIM card is querying whether there is enough traffic, if
there is no traffic, dialing will not succeed.
Question: what is the first thing to do with 3G/4G without a video?
Answer: according to the INFO key into the system information page, see whether the SIM card exists and the
signal is strong and weak and dialing state, whether the antenna is in good contact. Then check whether the SIM
card has no traffic, the replacement of a SIM card to judge, this is the most basic judgment. If you have a signal
but don't dial the number, see if the center number and port are set correctly. See if the device number of the
product has been occupied.
Q: 3G/4G signal on the video card?
Answer: the current signal coverage of WCDMA and EVDO is wide (4G coverage is not comprehensive).
Signal coverage to the situation existing in some mountainous areas, some suburban areas due to various parts
of the network control signal is weak, this time will be watching the video card or not to see the video, the local
network impact is relatively large; the second view frame sub code set flow is too high, in the network poor
state and frame rate is set high, the video may also appear in this situation
Q: the WIFI signal has more than -60db but is not connected to it?
Answer: if your WIFI is set correctly, it is not a problem for the general situation signal to reach more than
-60db connection. If the host is not found in the LAN, you need to check if your SSID and password are set up.
Of course, the basic IP address must also be set up. Otherwise, let's see if the encryption type and authentication
