ZALM-301-1 Datasheet, PDF (14/19 Pages) California Eastern Labs – APEX LT SERIES TRANSCEIVER MODULES

PCB Keep-out areas: Apex LT
Dimensions in inches. Tolerances = +/-0.005” unless otherwise noted.
Component Keep Out Area:
No components within 0.100 inches of module
ZALM-300 Series
NDEDN 0.190
MME ^{ESIG 0.315}
0.050
1.000
1.200
Edge of Host PCB
Recommended overhang
for PCB Antenna = 0.230
If module does not overhang edge
of host PCB, no components, copper
or traces are allowed in this area
O ^D _{If optional MMCX connector is specified, edge}
of host board must be notched as shown
EC _{EW For optimum antenna performance, the APEX LT modules should be mounted with the PCB trace antenna overhanging}
R ^{the edge of the host board. To further improve performance, a ground plane may be placed on the host board under the}
module, up to the PCB edge. The installation of an uninterrupted ground plane on a layer directly beneath the module will
NOTFOR ^{N also allow you to run traces under this layer. CEL can provide assistance with your PCB layout.}