FM FM walkie talkie comprehensive tester (RF signal source function, power meter function, frequency meter function, sub tone measurement function)

1、 Emission measurement

1. Frequency measurement: 10MHz ～ 900MHz, resolution: 1KHz or 0.1KHz

2. Power measurement 0.1W~64W (the higher the power, shorten the test time to avoid overheating)

3. Sub tone measurement 50Hz~260Hz analog sub tone and standard digital sub tone

2、 Receiving measurement

1. RF signal generator 1MHz -- 470MHz

2. Output level: - 132dBm to - 90dBm

3. Single tone modulation: 1KHz 2KHz 3KHz optional, output modulation: 3K

4. Sub tone output: 50Hz -- 260Hz analog sub tone and standard digital sub tone, output amplitude: 0.5K

3、 Relay station test

It is specially developed for debugging and measuring U/V relay station and FM walkie talkie. The signal generator can work in the duplex mode, that is, the tested machine is placed in the transmitting state without affecting the generator work, and can be used for measurement in the forwarding state of the transit station.

4、 Working voltage: 8-12V DC

5、 Working current: 200mA

6、 The machine is provided without power supply, test line and paper instructions. See the introduction on the website for specific operation methods.

7、 Net weight: 400g

8、 Boundary dimension: 160 * 160 * 65mm (including protruding part)

Interphone comprehensive survey description

Interphone comprehensive survey description

Signal source mode:

In the first row, the left frequency (0.5-470M) and the right output power (- 90 --- 131dBm)

In the second row, the left sub tone (50.0-280.0Hz any analog sub tone and 105 groups of digital sub tones), the right modulated tone (1-3K) and the lower right corner display the input power

Number key: direct input for cursor pointing to item

Up/Down key: step adjustment cursor points to item value

F1 key: the cursor points to move (long press to switch to frequency meter mode)

F2 key: Backspace key

F3 key: When the cursor of the function key points to the output power, sub tone and modulation tone, it is a cycle switch function. For example, when the cursor points to the power output, the key function is a cycle switch signal output.

F4 key: not used

Analog sub tone setting: input 4 digits of sub tone point directly, and add "0" before less than 4 digits. For example, input 0, 8, 8, 5 at 88.5Hz

Now, if you use the up and down keys to adjust, it will be adjusted in steps of 0.1Hz. If you need to adjust 50 groups of standard sub tones, you need to input 0, 0, 0, and then use the up and down keys to adjust. The adjustment will start from the first standard sub tone 67Hz.

Digital sub tone setting: Input the three digit sub tone code and press F3 Example 023. Input 0, 2, 3 first and then press F3. Press F2 to switch between I and N of digital sub tone. Adjust up and down keys to add or subtract 105 groups of digital sub tones.

The value of modulation tone and sub tone input 0 is equivalent to off.

Step frequency setting: When the cursor points to the frequency, press and hold F3 to save the current displayed frequency as the step frequency.

Frequency meter mode:

In the first row, the left frequency and the right measurement mode are AUTO/MANUA (in order to measure the transmitted sub tone of the walkie talkie or repeater at the same time, please select AUTO mode)

Frequency resolution (1K/0.1K) of sub audio on the left and right of the second line

Number keys: not used

Up and down keys: not used

F1 key: long press to switch to signal source mode

F2 key: not used

F3 key: frequency meter resolution switch 1K/0.1K

F4 key: When the measurement mode is switched to AUTO/MANUA AUTO, when a stable frequency is detected, it will automatically lock and detect sub tones and display the results until the signal disappears. After the signal disappears, it will continue to detect and wait for a new stable frequency. (You can detect the standard and non-standard analog sub tones sent by the radio station by yourself. If the radio station sends digital sub tones, only the standard digital sub tones can be detected, but the non-standard digital sub tones cannot be detected)

When MANUA, it is the real-time detection and update frequency of the conventional frequency meter.

Note: whenever there is power input, the lower right corner displays the input power.