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.
Features:
Suitable for FM walkie-talkie debugging.
Built-in 800Hz audio modulation, with the analog digital CTCSS function.
The unit is DBM. General hand sensitivity is -120DBM to -130DBM.
The greater the sensitivity to a negative number, the higher the sensitivity.
The signal source cannot input power.
It is absolutely forbidden to press the intercom button to transmit when testing. (self-matching power supply 8V-12V power supply polarity is positive and negative)
Specifications:
Material: ABS
Color: blue
Frequency: 0.5MHz-470MHz
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
Test methods:
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.
Package list:
1 * 0.5MHz-470MHz RF Signal Generator for FM Radio