User Manual
Table Of Contents
DRAFT COPY
Generated on
9/16/2014
8
SNAP Engine SM220 Series Data Sheet — 430000-01A
Figure 2: Block diagram showing the major subsystems comprising Model SM220
Selecting an Antenna
The SM220 uses the internal Compact F antenna by default. If you wish to use an external U.FL
antenna with your application, you will need to set bit 0x0010 of NV ID 64 to 1. This is a one-time
change that will persist through reboots and program changes. To revert to the internal antenna,
change bit 0x0010 of NV ID 64 back to 0.
Antenna Gain Performance
HyperLink Technologies HG2405RD-RSP
Figure 3: HyperLink Technologies HG2405RD-RSP Antenna Gain Performance