Monday Kids 0.5MHz-470MHz RF Signal Generator Meter Tester for FM Radio Walkie-talkie Debug Digital CTCSS Singal Output
- The signal source cannot input power.
- The greater the sensitivity to a negative number, the higher the sensitivity.
- The unit is DBM. General hand sensitivity is -120DBM to -130DBM.
- Built-in 800Hz audio modulation, with the analog digital CTCSS function.
- Suitable for FM walkie-talkie debugging.
The accuracy comparison between this signal source and professional comprehensive measurement is basically the same. The accuracy is very high. Can test the actual receiving sensitivity of the walkie-talkie.
Signal strength: -70-132dBm
Built-in 800Hz audio modulation
Add the analog digital CTCSS function
Use 8-12V DC power supply, frequency 7 digits
For example: 439.6000MHz shows 4396000KHz
Signal strength -70-132dBm valid, other values are invalid.
Audio modulation is only about 800Hz, other values are invalid.
Item size: 155 * 120 * 63mm / 6.1 * 4.7 * 2.5in
Item weight: 271g / 9.6ounce
Package size: 210 * 160 * 70mm / 8.3 * 6.3 * 2.8in
Package weight: 303g / 10.7ounce
During the test, the frequency of the signal source input transceiver is first set to -100DB or any value. The intercom has audio output and then reduces the output strength of the source. For example, the -120DB just heard the intercom audio signal but there was noise. The audio signal just hears that the -120DB value of this output is the receiving sensitivity of the radio.
1 * 0.5MHz-470MHz RF Signal Generator for FM Radio
Note: Only use 12V1A power supply (there is buyer feedback, screen burnout, after our test may be caused by using more than 12V power supply. Please be sure to use the power carefully.
for FM walkie-talkie debugging
Frequency 0.5M --- 470M
Signal strength -70--132dBm
Built-in 800Hz tone modulation
Increase analog digital CTCSS function
Use 8--12V DC power supply,Frequency 7 digits
Frequency 7 digits Example: 439012.5KHZ display 4390125
Signal strength -70--132dBm effective other value is invalid
Audio modulation just about 800Hz other value is invalid
F1: cycling setting item, "", "pointing to the selected item, respectively, frequency, signal strength, audio modulation frequency
F2: backspace key input of an error
F3: closed, open signal output
F4: closed, open audio signal modulation
Value direct input selection item: the number keys
Numerical stepping modify the selection of project: arrow keys
This signal source and the professional comprehensive measurement accuracy comparison are basically the same. The accuracy is very high. The actual receiving sensitivity of the intercom can be tested. The unit is DBM. General hand sensitivity - 120DBM to -130DBM. The greater the sensitivity, the higher the value. The higher the sensitivity. The signal source cannot input power. It is absolutely forbidden to press the intercom button to transmit during the test. (self-matching power supply 8V-12V power supply polarity is positive and negative)
Test Methods: At the time of testing. The frequency of the signal input transceiver is first set to -100DB or any value. The intercom has audio output and then reduces the output strength of the source. For example, the -120DB just heard the audio signal from the intercom but there was noise. The audio signal just hears that the -120DB value of this output is the receiving sensitivity of the radio. Dedicated to FM walkie-talkie debugging Frequency 0.5M---470M Signal strength -70--132dBm Built-in 800Hz audio modulation The new model adds analog subsonic digital subsonics. Use 8--12V DC power frequency 7 digits For example: 439.6000MHZ shows 4396000KHZ Signal strength -70--132dBm valid Other values ??are invalid Audio modulation is only about 800Hz other values ??are invalid Signal source description ?Note that the transceiver cannot be placed in the transmitting state when the signal source is connected to the transceiver, otherwise the signal source will be damaged. The first line to the left of the frequency (0.5-470M), the right side modulation tone (1-3K) The second line to the left of the sub-audio (50.0-280.0Hz arbitrary analog sub-tone and 105 sets of digital sub-tones) right output power (-70 ---131dBm) Number key: direct input for the cursor pointing to the item Up and down keys: step adjustment cursor points to the item value F1 key: cursor pointing to move 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 sound, the key function is the cycle switch modulation sound. F4 key: cycle switch RF signal output Analog subsonic setting: direct input sub-audio point 4 digits insufficient 4 digits front complement "0" example: 88.8Hz input 0, 8, 8, 5 Now if you use the up and down keys to adjust it will be adjusted in 0.1Hz steps, if you need to adjust the standard 50 sets of subtones to enter 0, 0, 0, 0 and then use the up and down keys to adjust from the first standard sub-tone 67Hz. Digital sub-tone setting: input 3 digits of sub-tone code and press F3. Example 023 first input 0, 2, 3 and then press F3 to set the success. Press the F2 key to switch between the digital subsonic I and N. The up and down keys will be added or subtracted from the 105 digital subtones. Entering 0 for the value of the modulated and sub-tones is equivalent to turning off.
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