BACKGROUND:
These components are all NEW, extracted from boxed, sealed & obsoleted Transcom (Australia) communications equipment. I envisage these components may be of interest to folks who like to experiment in the world of GSM Systems AND still have a functioning CDMA or GPRS data network.
MOTOROLA - G.18 GSM Data Module
Made by Motorola (so the sticker says) but where?
Country of origin in not indicated
Type: g.18 GSM Data Module
Model: SE2838KFS28
Released to the market early 2000's
Ports: Looks like an MMCX SMT type (RF input), a Kyocera 36 way flat ribbon connector (unused in the original design) & a 28 way (2 row x 14) female connector
PCB Dimensions: 40mm x 79mm
Extensive metal shielding which is NOT easily removable, this made it impossible to determine the chipset being used.
6 Gold plated contact SIM card holder on the "underside"
3x corner holes for PCB support - originally this module used 2x plastic standoffs and one bolt.
This Motorola g.18 GSM module was part of the excellent communications equipment from Transcom (Australia), designed and manufactured in Australia, with the exception of two modules inside the unit. This Transcom equipment is now obsolete, meaning that the original functional design of the equipment is no longer of any use in the marketplace because obsolete terrestrial data networks were used) but "sections" of the equipment are just as useful as they were 20 years ago.
The equipment comprised TWO distinct "sub sections" dealing with RF.
One module being for bi-directional communications with the terrestrial data network using the 2/3G network (CDMA/GPRS) ... not 4G or 5G (it hadn't even been commercially released at the time this equipment was designed) - as an embedded module for use in many (but not all) countries, particularly Australia, these days it is useless (all such systems were turned off quite a while ago). However some countries MAY still be using GPRS/CDMA data communications (800~900MHz & 1.8~1.9GHz) so I have taken the same amount of care as with the satellite receiver module and retained this old dated network data module.
What is useless for many MAY not be useless for the entire world - this module (from Motorola) is available and it is offered at no charge (but still subject to shipping costs, if applicable)
The other module is most likely of much greater interest (if GNSS is of interest to you) being the well known LR9540 based on the SiRF LSI GSP2e/LP-7450 chip.
The GNSS module is a high performance, low power requirement 12 Channel with TTL level output GNSS receiver with very fast "time to first fix" time.
Here is a photograph of the two modules installed in the original equipment, GSM to the left and GPS receiver to the right hand side.
If the satellite receiver module is more interesting to you, take a look HERE
Now I must make it clear that this GSM Data module, and the associated components I am offering, are all NEW and have never been used, I am the first person to touch them since they left the factory. The original equipment was supplied to end users (technical department) as part of the TRANSCOM product line based on the VTX3000X Mobile Communications Gateway. Realising that the equipment as it stood was useless for any commercial use, I took it into the "operating theatre" (workshop) in my capacity as Chief Surgeon and under strict ESD safety precautions, useful sections were removed from the patient. This equipment has never seen "turn on" at all.
Included with this module is the 180mm length RF interconnect lead which runs between this module and a panel or chassis, providing RF connection to the outside world via an SMA female connection (Gold plated, with hardware)
Since "The Operation" (which was undertaken using strict ESD safety precautions), this module is now within a sealed ESD packet, waiting (perhaps in vain) for a new purpose in life!
