Motorola GM3688 How to tell the old from the new

1. Carefully look for any marks on the screen, data cables, headphone holes, speaker holes, and hanging tape holes for dust.

2. Carefully look at whether there are scratches at the battery lock of the fuselage, whether there are spin marks at the rotating shaft of the upper and lower covers, and whether there are indentations at the two bumps on the upper cover.

3. Carefully check whether there are any records in the WAP and voice functions and call log information functions.

4. The shell depends on the comparison (compared with the machine that proves to be good, brightness, uniformity, hue, granularity, etc.).

5. Smell the smell, the new machine has sandalwood, which is different from the general detergent and perfume smell. The body must not have sticky wax and oil (if there is, it will be beautified by JS).

6. Carefully check the SIM card contact points for wear marks on the contact points of the fuselage battery (distinguish the rest of the contact points).

This,It's a matter of luck.,If you want to buy parallel goods.,If you're a white.,It's useless to tell you.,Wait a minute, according to the characteristics to distinguish.,Do you think it's a good phone? The best way is to go to a bigger store to buy it, Suning or something. Then I don't know, after all, I haven't used it, but I can tell you very responsibly that online shopping is not good, especially this kind of very important item!

Even if you don't buy it, please consider changing to another brand, try not to shop online, and of course, if you buy a good one, you can recommend the store to me!

The label under the back panel of the machine, the line of equipment type, if it is GP3688 UHF2, it is UHF high, UHF1 is UHF, and UHF is 150MHz

Generally speaking, the screen is represented by H, L, and E: high, low, and ultra-low transmit power. You can refer to the manual for details.

Turn on the intercom battery, there is an intercom information letter at the top to indicate that the year, month and day is the factory date, and at the top is the frequency range information of the intercom, so you can find it.

Yes, generally speaking, there are more UHFs, UHF2 is 440-470, UHF1 is 403-438, VHF1 should be 136-162, VHF2 is 146-174, probably like this.

Does it refer to the frequency range? Check the battery and look at the host label, there should be a mark.

The walkie-talkie is very simple, you can use it without a manual, as long as you adjust the frequency, install the battery, antenna, press the PTT transmitter to speak, and release it after speaking. If you want to know more about the function of the walkie-talkie, you still consult the seller, the manual will not introduce the function in detail, just a simple introduction to how to use. Frequency modulation requires special programming software and writing frequency lines to be modulated.

I hope you can adopt it, thank you.

Check out the forum here

First of all, it is simple to find the busy point of the RX machine, and the TX RX frequency of each machine is set to the same frequency.

There are only three channels because you didn't write for you when you bought them. Generally, the test frequency of the walkie-talkie factory is three, you just need to rewrite the frequency, generally the least is 16 channels, but generally you can't use the channel, three can also be used. Of the three, the second is generally the best frequency that matches the antenna, so you use the second frequency.

Hope it helps.