KU4XR Audio Noise Floor Measurements - Kenwood TS450S - ( 3-12-2014 )

Antenna Jack Shorted.. Mode - USB at 2.4 KHz Bandwidth.. Audio from Headphone Jack

Audio Analyzing Software - Audacity 2.0 - Radio Volume Level set for -30 dB on Audacity Vu Indicator..

FC used for analysis - 1575 Hz .. 

Frequency		Noise Floor		Notes

1.8 MHz             	 -49 dB

475 KHz		-49 dB

185 KHz		-48 dB			+1 dB Increase in Noise Floor ( Referenced to 1.8 MHz )

137 KHz		-48 dB

100 KHz		-48 dB			

60 KHz		-47 dB			+2 dB Increase in Noise Floor

50 KHz		-46 dB			+3 dB Increase in Noise Floor

40 KHz		-45 dB			+4 dB Increase in Noise Floor

30 KHz		-43 dB			+6 dB Increase in Noise Floor

27.920 KHz		-42 dB			+7 dB Increase in Noise Floor

Personal Observation, and Comments

The radio's Audio, and RF performance begin to deterioriate noticably below 100 KHz