# Additional Reading

## Raspberry Pi and Wsprry Pi Related

- ["BCM2835 ARM Peripherals"](http://www.raspberrypi.org/wp-content/uploads/2012/02/BCM2835-ARM-Peripherals.pdf)
- ["BCM2835 Audio Clocks"](http://www.scribd.com/doc/127599939/BCM2835-Audio-clocks)
- ["GPIO Pads Control2"](http://www.scribd.com/doc/101830961/GPIO-Pads-Control2)
- ["Clock Management"](https://github.com/mgottschlag/vctools/blob/master/vcdb/cm.yaml)
- ["pagemap, from the userspace perspective"](https://www.kernel.org/doc/Documentation/vm/pagemap.txt)
- [Raspberry Pi DMA Tutorial](https://github.com/fandahao17/Raspberry-Pi-DMA-Tutorial)

## WSPR and Other Ham References

- ["WSJT: New Software for VHF Meteor-Scatter Communication."](https://web.archive.org/web/20221213201110/http:/physics.princeton.edu/pulsar/K1JT/WSJT_QST_Dec2001.pdf)  (QST, December 2001)
- ["JT44: New Digital Mode for Weak Signals."](https://web.archive.org/web/20221213201110/http:/physics.princeton.edu/pulsar/K1JT/WSJT_QST_Jun2002.pdf) (QST, June 2002)
- ["EME with JT65"](https://web.archive.org/web/20221213201110/http:/physics.princeton.edu/pulsar/K1JT/WA50_June05.pdf)(QST, June 2005)
- ["The JT65 Communications Protocol"](https://web.archive.org/web/20221213201110/http:/physics.princeton.edu/pulsar/K1JT/JT65.pdf) (QEX, September-October 2005).
- ["WSJT: Meteors, Moonbounce, and More."](https://web.archive.org/web/20221213201110/http:/physics.princeton.edu/pulsar/K1JT/PackRats_Sep05_K1JT.ppt) (Mid-Atlantic States VHF Conference, September 2005)
- ["Open Source WSJT: Status, Capabilities, and Future Evolution."](https://web.archive.org/web/20221213201110/http:/physics.princeton.edu/pulsar/K1JT/K1JT_eme2006.pdf) (12th International EME Conference, Wurzburg, August 2006)
- ["Open Source WSJT."](https://web.archive.org/web/20221213201110/http:/physics.princeton.edu/pulsar/K1JT/K1JT_Wurzburg.ppt) (PowerPoint presentation)
- ["How Many Bits are Copied in a JT65 Transmission?"](https://web.archive.org/web/20221213201110/http:/physics.princeton.edu/pulsar/K1JT/K1JT_eme2006_2.pdf)(Dubus, 3/2006)
- ["Recommended Procedures for Random Digital EME."](https://web.archive.org/web/20221213201110/http:/physics.princeton.edu/pulsar/K1JT/Operating_Procedures.pdf) (Dubus, 3/2006)
- ["MAP65: A Panoramic, Polarization-Matching Receiver for JT65."](https://web.archive.org/web/20221213201110/http:/physics.princeton.edu/pulsar/K1JT/MAP65.pdf) (Microwave Update, October 2007)
- ["Quest for Optimum Coding and Modulation Schemes for EME."](https://web.archive.org/web/20221213201110/http:/physics.princeton.edu/pulsar/K1JT/EME_Florence_2008.pdf) (13th International EME Conference, Florence, August 2008)
- [Earth-Moon-Earth (EME) Communication](https://web.archive.org/web/20221213201110/http:/physics.princeton.edu/pulsar/K1JT/Hbk_2010_Ch30_EME.pdf) (from ARRL Handbook, 2010)
- ["Moonbounce from Arecibo Observatory"](https://web.archive.org/web/20221213201110/https:/physics.princeton.edu/pulsar/K1JT/Moonbounce_at_Arecibo.pdf) (QST, August 2010)
- ["Frequency-Dependent Characteristics of the EME Path](https://web.archive.org/web/20221213201110/https:/physics.princeton.edu/pulsar/K1JT/EME2010_K1JT.pdf)" (14th International EME Conference, Dallas, August 2010)
- ["Frequency-Dependent Characteristics of the EME Path](https://web.archive.org/web/20221213201110/https:/physics.princeton.edu/pulsar/K1JT/EME_2010_Dallas_K1JT_1.pdf)" (PowerPoint slides: 14th International EME Conference, Dallas, August 2010)
- ["WSPRing Around the World"](https://web.archive.org/web/20221213201110/https:/physics.princeton.edu/pulsar/K1JT/WSPR_QST_Nov_2010.pdf) (QST, November 2010)
- ["Meteor Scatter: How Much Antenna is Too Much?"](https://web.archive.org/web/20221213201110/https:/physics.princeton.edu/pulsar/K1JT/AntBk22_Meteor_Scatter.pdf), ARRL Antenna Book, 22nd Edition (2011)
- "[MAP65 Version 2: A Panoramic, Polarization-Matching Receiver for JT65](https://web.archive.org/web/20221213201110/http:/physics.princeton.edu/pulsar/K1JT/K1JT_EME2012.pdf)" (15th International EME Conference, Cambridge, August 2012)
- "[MAP65 Version 2: A Panoramic, Polarization-Matching Receiver for JT65](https://web.archive.org/web/20221213201110/https:/physics.princeton.edu/pulsar/K1JT/EME2012_K1JT.pdf)" (PowerPoint Slides: 15th International EME Conference, Cambridge, August 2012)
- "[Small Station EME at 10 and 24 GHz: GPS Locking, Doppler Correction, and JT4](https://web.archive.org/web/20221213201110/https:/physics.princeton.edu/pulsar/K1JT/small_station_eme.pdf)" (Dubus, 2/2013).
- "[Optimized Small-Station EME: X-pol at 432 MHz](https://web.archive.org/web/20221213201110/https:/physics.princeton.edu/pulsar/K1JT/Optimized_Small-Station_EME.pdf)" (16th International EME Conference, Pleumeur-Bodou, France, August 2014)
- "[Optimized Small-Station EME: X-pol at 432 MHz](https://web.archive.org/web/20221213201110/https:/physics.princeton.edu/pulsar/K1JT/EME_2014_K1JT.pdf)" (PowerPoint Slides: 16th International EME Conference, Pleumeur-Bodou, France, August 2014)
- "[Moonbounce at W2PU](https://web.archive.org/web/20221213201110/https:/physics.princeton.edu/pulsar/K1JT/Moonbounce_at_W2PU.pdf)", (Mid-Atlantic States VHF Conference, September 2014).
- "[EME with Adaptive Polarization at 432 MHz](https://web.archive.org/web/20221213201110/https:/physics.princeton.edu/pulsar/K1JT/EME_with_Adaptive_Polarization_at_432_MHz.pdf)" (Dubus, 4/2014).
- "[Open Source Soft-Decision Decoder for the JT65 (63,12) Reed-Solomon Code](https://web.archive.org/web/20221213201110/https:/physics.princeton.edu/pulsar/K1JT/FrankeTaylor_QEX_2016.pdf)" (QEX, May/June 2016)
- "[_WSJT-X:_ New Codes, Modes, and Tools for Weak-Signal Communication](https://web.archive.org/web/20221213201110/https:/physics.princeton.edu/pulsar/K1JT/K1JT_EME_2016_Venice.pdf)" (PowerPoint Slides: 17th International EME Conference, Venice, August 2016)
- "[High-Accuracy Prediction and Measurement of Lunar Echoes](https://web.archive.org/web/20221213201110/https:/physics.princeton.edu/pulsar/K1JT/LunarEchoes_QEX.pdf)" (QEX, November-December 2016, pp. 36-40)
- "[The MSK144 Protocol for Meteor-Scatter Communication](https://web.archive.org/web/20221213201110/https:/physics.princeton.edu/pulsar/K1JT/MSK144_Protocol_QEX.pdf)" (QEX, September/October, 2017, pp. 8-14)
- "[Work the World with WSJT-X, Part 1: Operating Capabilities](https://web.archive.org/web/20221213201110/https:/physics.princeton.edu/pulsar/K1JT/Work_the_World_part1.pdf)", (QST, October 2017, pp. 30-36)
- "[Work the World with WSJT-X, Part 2: Codes, Modes, and Cooperative Software Development](https://web.archive.org/web/20221213201110/https:/physics.princeton.edu/pulsar/K1JT/Work_the_World_part2.pdf)", (QST, November 2017, pp. 34-39)
- "[FT8 in the ARRL RTTY Roundup](https://web.archive.org/web/20221213201110/https:/physics.princeton.edu/pulsar/K1JT/FT8_RTTY_Roundup.pdf)", (QST, January 2019, p 29)
- "[FT4 and FT8 Contesting](https://web.archive.org/web/20221213201110/https:/physics.princeton.edu/pulsar/K1JT/NCJ_FT4_FT8_Contesting.pdf)", (NCJ, May/June 2020)
- "[The FT4 and FT8 Communication Protocols](https://web.archive.org/web/20221213201110/https:/physics.princeton.edu/pulsar/K1JT/FT4_FT8_QEX.pdf)", (QEX, July/August 2020. pp. 3-13)