Condition:New
Type:Logic ICs
No.:0.5-470MHz
Decoration and construction contents:Hydropower project
Specially designed for FM walkie talkie debugging
Frequency 0.5MHz-470MHz
Signal strength -70 to -132dBm (disable input power, once the input exceeds 0dbm power will burn the signal source)
Built in 800Hz audio modulation
Using 8--12V DC power supply
Frequency 7 digit example: 439.0125MHz shows 4390125, if 439.125MHz shows 4391250
Signal strength -70 through -132dBm valid. Other values are invalid
Audio modulation is only about 800Hz, other values are invalid
The F1: loop selects the setting item "" to the selected items, respectively, the frequency, the signal strength, and the audio modulation frequency
F2: backspace key for error input
F3: turn off and turn on the signal output F4: turn off, turn on audio signal modulation
Numeric key: enter the value of the selected item directly
Up and down key: step change, select the value of the project Be careful
Prohibit input power, once the input exceeds 0dbm power, will burn the signal source, because the damage caused by the power input is not in the warranty.
Signal source description: Note that the radio cannot be placed in the transmitting state when the signal source is connected to the radio, otherwise the signal source will be damaged
First line left frequency (0.5-470M), right modulation tone (1-3K)
Second line left sub audio (50.0-280.0Hz any analog sub tone and 105 digital sub tones) right output power (-70--131dBm)
Numeric keys: Enter directly for the cursor pointing to the item
Up and down keys: step to adjust the cursor to the item value
F1 key: cursor moves
F2 key: Backspace key
F3 key: Function key The cursor points to the item cycle switch, for example: When the cursor points to the modulation tone, this key function is to cycle the modulation tone.
F4 key: cycle switch RF signal output
Analog subtone setting: Direct input 4 digits of subtone point Not enough 4 digits before "0". Example: 88.8Hz input
Now if you use the up and down keys to adjust, it will be adjusted in 0.1Hz steps.
0, 0, 0, 0 and then use the up and down keys to adjust from 67Hz the first standard subtone.
Digital subtone setting: Enter a 3-digit subtone code and press F3. Example 023: Enter 0, 2, 3, and then press F3. The setting is successful.
Press the F2 key to switch between I and N of the digital subtones. Adjusting the up and down keys will add or subtract 105 groups of digital subtones.
Entering a value of 0 for modulation and subtones is equivalent to turning off.
