1. Satlink V2 (SL2-G312-V2) What are the differences compared to the prior Satlink?

2. Key Differences: Doubling of the number of 300 bps channels by reducing the existing channel width in half and adding new channels in between the original channels. Redefining the channel numbering schemes for 1200 bps. Improved frequency control for longer operation without GPS reception. Reduced power output to comply with lower power requirements on the satellite. V2 Key Differences

3. Ability to select the satellite antenna from a list which controls the output power. Elimination of Domestic 100 bps operation. Reduction of CGMS (international 100bps) channels to 11. Added Antenna Aim calculator support for Satlink Communicator. Reduction in the maximum transmit buffer length supporting new failsafe limits. New Frame Sync word. V2 Key Differences

9. 300 BPS CHANNEL FREQUENCY

10. V2 Key Differences 1200 BPS CHANNEL FREQUENCY

11. FRAME SYNC Originally there were 3 frame sync codes used to represent: (located at the start of the message) – No interleaver – Short interleaver – Long interleaver V2 certification DELETED ALL INTERLEAVING capability. V2 certification reused the ‘LONG’ interleaver frame sync for ALL transmissions. V2 Key Differences

12. Frequency Error Original CS1.0B specifications allowed +/- 400 Hz error. NEW CSV2.0 specifications allow +/- 125 Hz. Operation without GPS Prior Satlinks supported 18 hours operation. NEW V2 Satlinks support 30 day operation with no GPS provided it originally had GPS for at least 10 transmissions prior to the outage.

13. V2 Key Differences SATELLITE AIMING FEATURE

14. V2 Key Differences