Using the Green Bank-Berkeley Pulsar Processor (GBPP) with the GBT

Introduction

References on the GBPP:

• Berkeley report on pulsar monitoring with the GB 85-3 telescope
• Description and schematics.

• "A Programmable 36 MHz Digital Filter Bank for Radio Science", by D.C.Backer, M.R.Dexter, A. Zepka, D. Ng, D.J. Werthimer, P.S. Ray, and R.S. Foster. Pub.Astron.Soc.Pacific 109, p.61, January 1997.

How to get started in Green Bank

1. ssh osiris -l dbacke r
2. cd /gbpp0/mpulsar/gbpp/onlingb t
3. DOGBPP2 {this starts up a GUI}
4. go into the locked room where the GBPP PC is located.
5. type "CNTRL-C", then "Yes", to stop the 85-3 program.
6. reboot the GBPP PC by pushing the "reset" button.
7. give Don's password when asked.
8. type: cd 97feb\data
9. type: gogbt1

10. everything else is done from the session on osiris that was started up in steps 1 and 2.
11. the astronomer needs to produce a "polyco.dat" file. Copy this file into the directory "/gbpp0/mpulsar/gbpp/onlingbt/"
12. "dossify" the polyco.dat file:
    unix2dos polyco.dat polyco.dos
13. In the DOGBPP2 GUI, select the correct rfif table, for example if observing at 1400 MHz, choose "rfif1400.tbl",
    then press the "UpdAll" button.
14. Now it should be ready for observing.

15. (To go back to the 85-3 program, repeat steps 4-8, but then type "go" instead of "gogbt1")

16. Also see DOGBPP Help file
17. Don's instructions
18. Advice on rfif.tbl

File paths

• GBT data: /home/gbpp0/mpulsar/gbpp/datagbt
• 853 data: /home/gbpp1/mpulsar/gbpp/data85

Related links

Pulsar Monitoring telescope 85-3 in Green Bank

Last modified: Wednesday August 7, 2002