GSP-9300 FM Radio Function

Now, I am going to demonstrate the FM broadcast function of GSP-9300 spectrum analyzer.

1. First of all, connect N-type to BNC adaptor, and connect BNC type FM antenna with RF input port on the front panel of GSP-9300.
2. Next, connect earphone or speaker with earphone output port on the rear panel of GSP-9300.

To begin the demonstration:
1. FM broadcast frequency bandwidth is between 87.5MHz and 108MHz.We are going to use frequency bandwidth between 85MHz and 110MHz to demonstrate.
2. Press F2 to set start frequency as 85MHz, and press F3 to set stop frequency as 110MHz.
3. Press Amplitude to set reference level as -30dBm.
4. Press Morel/3 (F7), and press F5 twice to set Preamp to Auto mode.
5. Now, feeble FM broadcast signals can be measured within 25MHz frequency bandwidth.
6. Press Peak Search to automatically search the strongest FM broadcast signals.
7. To listen to Taiwan ICRT English broadcast station, set center frequency as 100.7MHz.
8. Press Frequency, press Center Freq (F1) to set center frequency as 100.7MHz.
9. Press Span to input 500kHz.
10. Now, the screen shows FM signals from ICRT broadcast station.
11. In order to listen to FM radio, press Zero span (F3) to set fixed frequency as 100.7MHz.
12. Press Measure, press Demod(F2), press Sound (F3), and press EarPhoneOut(F1) twice to activate FM broadcast demodulation function.
13. Press BW/AVG, press RBW (F1) to switch to manual mode and set RBW as 100kHz.
14. Now, we are able to clearly listen to FM signals from ICRT broadcast station.
15. This concludes the demonstration of FM broadcast function of GSP-9300 spectrum analyzer.
16. Thank you very much for watching.