ATNF VLBI Wiki

Central frequency set to 1650 MHz. This comes in at 96 MHz.

Tone set to 410 MHz ⇒ 1640 MHz

proj_LGR1011_2013_03_19_143653

Record some data with tone

03:38:50 ⇒ T59_E0_R0_2013_03_19_143804.lf1

Turn off tone and record some more

03:40 ⇒ T59_E0_R1_2013_03_19_144055.lf1

Spectrum looks crap. Did not setup conversion!

Record again with no tone

04:21 ⇒ T59_E0_R2_2013_03_19_152142.lf1

Still crap

04:30 Try and reset samplers

⇒ T59_E0_R3_2013_03_19_153013.lf1 is crap

⇒ T59_E0_R4_2013_03_19_153124.lf1 to set stats

No cabled connected!!!!

Try again

05:28 UTC

proj_LGR1011_2013_03_19_162833

Record no tone

⇒ T59_E0_R0_2013_03_19_163026.lf1

Turn on tone -12dBm

⇒ T59_E0_R1_2013_03_19_163244.lf1

Turn on 512 MHz setup - tuned to central 1554 MHz

Record with no tone

⇒ T59_E0_R2_2013_03_19_164111.lf1

Turn on tone (410 –> 1640 MHz)

⇒ T59_E0_R3_2013_03_19_164236.lf1

Set tone to 402 MHz (1608 MHz

⇒ T59_E0_R4_2013_03_19_164504.lf1

Set tone to 362 MHz ()

⇒ T59_E0_R5_2013_03_19_165534.lf1

Back to 64 MHz

Turn off DAS gain control

⇒ T59_E0_R6_2013_03_19_170023.lf1

Noise cal was 0.5 Hz!!!!

Try again - new project

Cal is 200 Hz

proj_LGR1011_2013_03_19_203024

⇒ 59_E0_R0_2013_03_19_203350.lf1