NimbleSig
III rev 1.4.2 Spectrum Purity Test Results
with Analog/Digital ground bonding modification installed

VFO A VFO B

Figure 1A: VFO A set to 1.001 MHz Figure 1B: VFO B set to 1.001 MHz

Figure 2A: VFO A set to 2.001 MHz Figure 2B: VFO B set to 2.001 MHz


Figure 4A: VFO A set to 8.001 MHz Figure 4B: VFO B set to 8.001 MHz


Figure5A: VFO A set to 16.001 MHz Figure 5B: VFO B set to 16.001 MHz


Figure6A: VFO A set to 32.001 MHz Figure 6B: VFO B set to 32.001 MHz

Figure6A: VFO A set to 50.000 MHz Figure 6B: VFO B set to 50.000 MHz


Figure7A: VFO A set to 64.001 MHz Figure 7B: VFO B set to 64.001 MHz


Figure8A: VFO A set to 100.000 MHz Figure 8B: VFO B set to 100.000 MHz


Figure9A: VFO A set to 128.001 MHz Figure 9B: VFO B set to 128.001 MHz


Figure10A: VFO A set to 199.001 MHz Figure10B: VFO B set to 199.001 MHz


Figure10A: VFO A set to 200.000 MHz Figure10B: VFO B set to 200.000 MHz


Figure11A: VFO A set to 63.333 MHz, 1 GHz Sweep, 500 MHz clock spur Figure11B: VFO B set to 63.333 MHz, 1 GHz Sweep, 500 MHz clock spur