0.5-470MHz RF Signal Generator for FM Walkie-Talkie Sensitivity Test with CTCSS & 800Hz Modulation -120dBm Accuracy

Specifications Material ABSColor blueFrequency 0 5MHz 470MHzSignal strength 70 132dBmMaximum Sensitivity 70dbmBuilt in 800Hz audio modulationAdd the analog digital CTCSS functionUse 8 12V DC power supply frequency 7 digitsFor example 439 6000MHz shows 4396000KHzSignal 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 5inItem weight 271g 9 6ouncePackage size 210 160 70mm 8 3 6 3 2 8inPackage weight 303g 10 7ounce 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 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 Note 1 Power cable is not included 2 Specially designed for testing the sensitivity of you