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LE005-R2 Mode-UV Linear Transponder

LE005-R2 Mode-UV Linear Transponder. William Leijenaar,PE1RAH. About myself:. William Leijenaar PE1RAH (The Netherlands) RF Development Engineer NXP Semiconductors The Netherlands (CATV Hybride module designer) Designing linear transponders for AMSAT community. Member of AMSAT-NA.

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LE005-R2 Mode-UV Linear Transponder

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  1. LE005-R2Mode-UV Linear Transponder William Leijenaar,PE1RAH

  2. About myself: William Leijenaar PE1RAH (The Netherlands) RF Development Engineer NXP Semiconductors The Netherlands (CATV Hybride module designer) Designing linear transponders for AMSAT community. Member of AMSAT-NA • Name : • Callsign : • Occupation : • HAM interrest: • Membership : William Leijenaar, PE1RAH

  3. About Linear Transponders: For user: • Many users at same time • Many modes (CW, SSB, FM, RTTY, SSTV……..) • Different mode at the same time For Satellite: • Difficult to design (need great RF experience) • Must be linear under every condition • More expensive to make • Need special components (Crystal filters) • Need many stages  Need many components William Leijenaar, PE1RAH

  4. My ham activities: • Indian VO-52: Dutch transponder design Launched May 2005 Operational in orbit William Leijenaar, PE1RAH

  5. My ham activities: • AMSAT-DL: P3e Mode-UV transponder design (100% tested and working, not selected  SDR option) William Leijenaar, PE1RAH

  6. My ham activities: • LE002-R1 • VO-52 size Mode-UV Linear Transponder • - Difficult to make  many tuning • - Stability problems • - Not many launch options •  Only for bigger satellites • ** Project has been stopped ** William Leijenaar, PE1RAH

  7. My ham activities: • LE005-R2 • CubeSat size Mode-UV Linear Transponder • Design criteria: • Must fit single CubeSat size • 3.7Vdc power supply • Fully programmable • Design with no tuning William Leijenaar, PE1RAH

  8. LE005-R2 in detail: Total size 9cm x 9cm x 0.5cm – (Included mounting strip) • Transponder in CubeSat model • Transponder needs very small space • Good secondary CubeSat payload William Leijenaar, PE1RAH

  9. LE005-R2 in detail: • Power supply = 3.7Vdc • One cell Li-Ion • E.g Cell-phone battery William Leijenaar, PE1RAH

  10. LE005-R2 in detail: • Programming option: • All frequencies • Beacon message • Beacon power • ** MSP430 ** William Leijenaar, PE1RAH

  11. LE005-R2 in detail: Demo board available: • For easy testing • Features: • 5…15Vdc input voltage • 3.7Vdc regulator included • All connectors SMA • Demo board can also be use as terrestrial transponder • For example on mountain William Leijenaar, PE1RAH

  12. LE005-R2 in detail: Complete system example: William Leijenaar, PE1RAH

  13. LE005-R2 features: Input frequency : Output frequency : Output power : Supply voltage : Current standby : Current when DX : Protections : Size : Weight: Onboard CW Beacon : Optional : 70cm (Frequency is programmable) 2m (Frequency is programmable) +23dBm PEP (single tone) +3.7Vdc 650mA 760mA - Low voltage switch off - High current fuse 9cm x 9cm x 0.5cm < 30grams Freq, Message, Power  programmable External ref osc, LNA tap, IF tap William Leijenaar, PE1RAH

  14. LE005-R2 small missions: The transponder weight < 30 grams CubeSat projects Balloon missions Flying on kite William Leijenaar, PE1RAH

  15. LE005-R2 with higher output power: 70cm input 2m output 40W LE005-R2 M57727 PA Module William Leijenaar, PE1RAH

  16. LE005-R2 in U/S mode example: 2.3GHz output 70cm input V LE005-R2 S 2m to 13cm up-converter William Leijenaar, PE1RAH

  17. Thank you for your interrest Hope to meet you on the satellites William Leijenaar, PE1RAH

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