Kenwood TK-208/308 tuning locks

(1): Open the machine and check that there are three standby connection points in the upper right corner of the machine panel. You can connect the 2nd and 3rd points through a link.

(2): The channel mode, frequency setting mode, and transmission and receiving mode can be freely switched.

(3) (shutdown is required for conversion. Press PTT + ctcss and start the system to switch to the power-on/sending/receiving mode)

(4) enter the channel mode:

First, go to the frequency setting mode, shut down, press the rev key, and start the instance to enter the channel mode)
TK-308/208 type walkie talkie is Jian wu company launched a function more, small size, high power, high receiver sensitivity of the host. However, machine adjustment is troublesome, with less information. The author has introduced the use of TK-308/208 walkie talkie adjustment function. This article introduces two essential functions of walkie talkie. These two functions are not displayed in the menu, but on the panel, that is, the function key's dual-Tone Multi-frequency code storage, extraction and wireless copy adjustment function. The specific adjustment steps are as follows.
I. Storage and extraction of Dual-Tone Multi-frequency Codes
For example, you can store and extract 12345 dual-Tone Multi-frequency codes as follows.
1. Storage: First press the dial key (the user must be in use or repair status), the "P" sign appears on the screen, and then press the Moni key to display "P…" on the screen ..." You can press the 12345 numeric key, and the screen displays 12345 numbers. Then, press the dial key, and then scale down the key to a number as required. If you press the 1 key, scale down 12345.
2. extract: press the dial key and the "P" sign appears on the screen. then press the number 1 key to extract the stored offset code. If you want to transmit the offset code, press the PTT key, press the dial key, and then press the number 1.
Up to 10 15-bit codes can be saved.
Ii. Adjust the wireless replication function
This function facilitates a large number of copies. The procedure is as follows.
1. First, adjust the data input of a TK-308 UHF Band machine, in the frequency setting mode; and adjust a fixed frequency, such as 450.00 MHz, set to a machine.
2. Adjusted B, c ...... N machines are also in the frequency setting mode. The screen display frequency is the same as that of host a, that is, 450.00 MHz.
3. Set host a and the adjusted B, C... All n machines are closed. Press and hold the low key of each machine to start the machine. The screen is marked as cione, and the machine is in the copy state.
4. Press the ptt key of host a and copy the information in host a from radio waves to other machines in the form of dual audio. If the screen display is the "Err" flag, the copy is complete. Shut down all machines and press the rev key for each machine to start the machine at the same time.

Jian wu TK-208 handheld walkie talkie in the frequency after the completion of the lock, the LCD screen will only display the channel code, and the frequency of each channel is hidden and not adjustable, in this way, the operation is stable to avoid mistakes and keep the frequency confidential. It is also because of this that, in the event of unexpected frequency running or frequency increase, if you do not know the frequency solution method, it is really a "dead machine.
Below will be TK-208 walkie talkie solution frequency, set frequency, storage and lock frequency method introduced to colleagues.
I. Solution frequency (two methods are available for case-opening or case-less) 1) method of case-opening solution frequency: remove four screws on the back of the machine and extract the battery, pinch the sides of the chassis on the left side of the Panel, and then gently open the rear half of the chassis. In the upper-right corner of the front half of the separated circuit board, we can see two circular copper bare points A and B marked with the choff string, where B is the grounding end (for example ). At this time, you just need to plug in the battery, use a small tweezers short circuit AB two points, and keep it, then boot, the display on the LCD screen into a frequency number, that is, the channel is unlocked. 2) Case-free solution method: Enable the left side of the launch button leather, take out the button circuit board, in the hole in the top of the button board socket gap, the two circular copper bare points on the top of the first half of the circuit board can be squashed (A on the outer side of the contact), and a point can be reached with the tip of the tweezers, then, place the tweezers side on the metal shielding frame (equivalent to grounding) and hold it. Then, start the system and convert the screen to a frequency number, indicating that the resolution frequency is successful.
2. After frequency decoding, encapsulate the transmit button circuit board and skin for operation. 1) reset; if you need to reset all frequency points, press and hold the PTT key and cset key at the same time, and then start the system to reset to the default minimum frequency point at the factory. Skip this step if only channels are added. 2) frequency adjustment: click the "Moni" button on the top of the transmit key, and rotate the channel selection button to adjust the integer (MHz) bit. Then, click the "Moni" button, rotate the channel to adjust the decimal Hz position.
3. After the storage frequency is adjusted, press the cset key to jump out of two flashing channels in the right corner of the screen. After the channel selection button is changed to the desired channel, press the cset key to make a pre-storage, at this time, the channel code disappears, and then press the PTT key and press the cset key twice. Normally, you should hear the sound of both high and low, that is, the frequency point is successfully stored. When you store data at the next frequency, repeat the two or three operations.
4. When all frequency points are stored, shut down and press PTT and rev at the same time to start the system. If only the channel digital is displayed on the screen, the lock is successful. Now, you can use the channel button to check whether all channels are stored. Press the PTT key to test whether the channel can be launched. If not, start from scratch.

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