The current release of the E20 users guide does not reflect what antennas are used for the device. here is that information.
Cellular - ANT017 (D141AH-AMPS/PCS)
WiFi - ANT016 (W1030)
SNAP - 320001-01A (W1027)
Cellular - ANT017 (D141AH-AMPS/PCS)
WiFi - ANT016 (W1030)
SNAP - 320001-01A (W1027)