DSSS modulator COM-1012 -> 0-80 MHz Modulator COM-4004

This test setup demonstrate the spread-spectrum output spectrum at 70 MHz Intermediate Frequency. 
Modulation rates: 100 Kchip/s, 1 Mchip/s, 9.9 Mchip/s
Connect an external 10 MHz frequency reference to the COM-4004 modulator. 

(a) import the 1012_4004.stn settings into the assembly.
(b) using a spectrum analyzer, check the COM-4004 output.
The output is a direct-sequence spread-spectrum modulated signal at 70 MHz center frequency.
The level is about -TBD dBm. 
(d) Using the ComBlock Control Center, change the COM-1012 registers REG0/REG1/REG2 to the 
following values and observe the following spectrum outputs:
REG0/1/2/3 = D7 A3 00   selects a 100 Kchip/s direct sequence spread-spectrum modulation
REG0/1/2/3 = 66 66 06   selects a 1 Mchip/s direct sequence spread-spectrum modulation
REG0/1/2/3 = 29 5C 3F   selects a 9.9 Mchip/s direct sequence spread-spectrum modulation

For 100 Kchip/s:
The -6 dB bandwidth is 100 KHz.

For 1 Mchip/s:
The -6 dB bandwidth is 1 MHz.

For 9.9 Mchip/s:
The -6 dB bandwidth is 9.9 MHz.