Parameter block layout

ESR data format

Data is recorded in the matlab4 data format and consists of several blocks:

  • the experiment info, d_ExpInfo (ASCII string)
  • the antenna parameters (see below), d_parbl (32 bit reals)
  • the data, d_data (2×32 bit complex reals)
  • the raw samples (not always present), d_raw (216 bit complex integers)
  • Bit 65-74 is different depending on system
  • Antenna ID parameter 41:
    1 32m ESR
    2 42m ESR
    3 VHF
    4 UHF
    5 Kiruna
    6 Sodankylä
    8 32p ESR
  • ESR parameter 67
    0 SPEAR all tx off
    1 SPEAR low power radar
    2 SPEAR high power radar
    3 SPEAR heating
  • ESR parameter 68

0 Lower plasma line LO1 set to 492 MHz and upper plasma line LO1 to 502 MHz
1 Lower plasma line LO1 set to 496 MHz and upper plasma line LO1 to 502 MHz
2 Lower plasma line LO1 set to 492 MHz and upper plasma line LO1 to 506 MHz
3 Lower plasma line LO1 set to 496 MHz and upper plasma line LO1 to 506 MHz

  • UHF parameter 67 (not available at UHF remotes) and VHF parameter 72 gives the power status on the Tromsø¸ systems as follow:
    Bit 0 UHF RF on
    Bit 1 UHF HV on
    Bit 2 UHF power on
    Bit 3 VHF RF on
    Bit 4 VHF HV on
    Bit 5 VHF power on
    Bit 6 Heating RF on
    Bit 7 Heating power on
  • VHF parameter 69 are decoded as follows:
    bit 0:1 Antenna phasing
    0 allB
    2 allA
    3 splitbit 2:5 IF setup
    bit 2 lo1/chI  0 298 MHz 1 290 MHz
    bit 3 lo1/chII 0 298 MHz 1 290 MHz
    bit 4 lo2/chI  0 84 MHz 1 78 MHz
    bit 5 lo2/chII 0 84 MHz 1 78 MHzPositive logic Note these values are integers

d_parbl

Entry

Value

Introduced

1 Dump end year
2 Dump end month
3 Dump end days
4 Dump end hours
5 Dump end minutes
6 Dump end seconds
7 Integration time, sec
8 Combined output power, W
9 Elevation, degrees
10 Azimuth, degrees
11 Dump end time, secs since 1970
12 Dump sequence number
13 % power tx1 klystron a (of 62.5 kW)
14 % power tx1 klystron b
15 % power tx2 klystron a
16 % power tx2 klystron b
17 % power tx3 klystron a
18 % power tx3 klystron b
19 % power tx4 klystron a
20 % power tx4 klystron b
21 Noise injection calibration, K
22 Pre-integration factor
23 % power tx5 klystron a
24 % power tx5 klystron b
25 % power tx6 klystron a
26 % power tx6 klystron b
27 % power tx7 klystron a
28 % power tx7 klystron b
29 % power tx8 klystron a
30 % power tx8 klystron b
31 rx frequency, channel 1 (MHz) 1999-08-19
32 rx frequency, channel 2 (MHz) 1999-08-19
33 rx frequency, channel 3 (MHz) 1999-08-19
34 rx frequency, channel 4 (MHz) 1999-08-19
35 rx frequency, channel 5 (MHz) 1999-08-19
36 rx frequency, channel 6 (MHz) 1999-08-19
37 rx frequency, channel 7 (MHz) 1999-08-19
38 rx frequency, channel 8 (MHz) 1999-08-19
39 rx frequency, channel 9 (MHz) 1999-08-19
40 d_parbl version number 1999-11-12
41 antenna ID (1-8) 1999-11-12
42 Remote antenna intersection range, m 2003-02-28
43-62 User parameters 2003-07-23
63 High voltage reading (V) 2003-09-01
64 Loop counter 2004-02-01
65 ESR Peak power read from power meter (W) 2004-02-20
66 ESR RF duty cycle calculated from RC binary 2004-03-20
67 ESR SPEAR tx status 2007-03-22
68 ESR LO settings 2007-05-14
69 ESR CHI attenuator settings (dB) 2007-05-14
70 ESR CHII attenuator settings (dB) 2007-05-14
71 ESR Peak power in wave guide 32m antenna (kW) 2008-05-24
72 ESR Peak power in wave guide 42m antenna (kW) 2008-05-24
65 UHF Peak power read from wave guide (W) 2004-02-20
66 UHF RF duty cycle read from wave guide 2004-03-20
67 UHF Power status on Tromsø¸ systems 2006-11-01
65 VHF antenna elevation panel 1 (deg) 2005-05-21
66 VHF antenna elevation panel 2  (deg) 2005-05-21
67 VHF antenna elevation panel 3 (deg) 2005-05-21
68 VHF antenna elevation panel 4 (deg) 2005-05-21
69 VHF IF system setup see note 1 2005-05-21
70 VHF Peak power read from wave guide  (W) 2006-10-30
71 VHF RF duty cycle read from wave guide 2006-10-30
72 VHF Power status on Tromsø¸ systems 2006-11-01
73 VHF CHI atennuator settings (dB) 2008-04-21
74 VHF CHII atennuator settings (dB) 2008-04-21
75 VHF Average power read in wave guide(kW) 2008-12-11