EM-406a GPS Sensor Issues w Nano Atmega328

John, thanks for your reply. I really appreciate it and really need the support.

Yes I am sure from the specifications of the product as pasted below:

Protocol
Electrical level TTL level, Output voltage level: 0V ~ 2.85V
RS-232 level
Baud rate 4,800 bps
Output message NMEA 0183 GGA, GSA, GSV, RMC, VTG, GLL
Physical Characteristics
Dimension 30mm30mm10.5mm ±0.2mm
Operating temperature -40? to +85?