FM FM walkie talkie comprehensive tester (RF signal source function, power meter function, frequency meter function, sub tone measurement function) 1& 12289; Emission measurement 1. Frequency measurement: 10MHz & 65374; 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& 12289; 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& 12289; 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& 12289; Working voltage: 8-12V DC 5& 12289; Working current: 200mA 6& 12289; The machine is provided without power supply, test line and paper instructions. See the introduction on the website for specific operation methods. 7& 12289; Net weight: 400g 8& 12289; 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.