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Frequency ranges for 2/4 Gbps

Modified 15:49, 10 May 2018 by eskil.varenius | Page History
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    1. 1. 4 Gbps frequency status

    Version as of 04:06, 12 Dec 2024

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    4 Gbps frequency status

    Please enter here your receivers with their frequency ranges. Please keep this table up to date!:

    • At which sky frequency (or frequency ranges) can your telescope reach 2*512 MHz (dual polarisation)?
    • Which IF output can your telescope provide? For example IF: 500-1000
    • What limits on LO tunability  do exist?

    Ranges in GHz, widths in MHz; in cells: top - width, middle - range, bottom - LO tunability

    Telescope L-band C-band M-band X-band K-band Q-band W-band (not (EVN)
    Arecibo              
    Badary              
    Cambridge              
    Effelsbergf

    140 (IF 80-220)

    optional: 264 MHz (direct RF 1536-1800 MHz)

    500

    (IF 500-1000)

    100

    (IF 100-200)

    500

    (IF 500-1000)

    100

    (IF 100-200)

    920

    (IF 0-1000)

    500

    (IF 500-1000)

    4000

    (IF 0-4000)

     

    500

    (IF 500-1000)

    100

    (IF 100-200)

    500

    (IF 500-1000)
    1.29-1.43, 1.59-1.73 4.6-5.1 5.75-6.75 7.9-9.0 18.0-26.0 41.6-44.4 84.5-95
    tuneable in steps smaller than 1 kHz
    Hartebeesthoekc

    160

    option: 270 (unfiltered)

    		 500 150 800 1500    

    1.59-1.75

    optional: +- 1.48-1.75

    		 4.6-5.1 5.9-6.9 8.18-8.98 21.4-24.1    
    not-tuneable (except optionally at L-band and at M-band and K-band where it is tuneable in steps smaller than 1kHz)
    Irbene 1.37 -1.72            
    Jb-1              
    Jb-2 Sky Freq: 1.250 GHz - 1.750 GHz Sky Freq: 4 GHz - 7.5 GHz Sky Freq: 4 GHz - 7.5 GHz N/A Sky Freq: 20 GHz - 25.02 GHz N/A N/A
    IF: 512MHz -1024 MHz IF: 512MHz -1024 MHz IF: 512MHz -1024 MHz IF: 512 MHz -1024 MHz
    LO: Tunable to 0.01Hz. LO: Tunable to 0.01Hz. LO: Tunable to 0.01Hz. LO: Tunable to 0.01Hz.
    Kunming       8.2-9.0  4.0-8.0    
    Medicina

    80
    (IF 330-410)
    1.350-1.450

    1.595-1.715

    400

    (IF 100-500)

    4.3-5.8

    800

    (IF 100-900)

    5.9-7.1

    800

    (IF 100-900)

    8.180-8.980

    2000

    (IF 100-2100)

    18-26

    		    
    Merlin              
    Metsähovib       480 (IF 500-980) 500 (IF 500-1000)

    500 (IF 500-1000)

    40-45

    fix: 42400

    		  500
    8.15-8.65 21.98-22.48 86-86.5
    fix: 7650 fix: 21480  85,5
    Noto Actually not available

    500

    4.1-5.0

    500

    5.6-7.2

    500

    8.1-8.6

    500

    21.7-22.2

    500

    38-47

    		  
    actually not available
     
    Onsala

    300

    (IF 10 - 500)

    500

    (IF 500-1000)

    500

    (IF 10-500)

    500

    (IF 10-1000)

    500

    (IF 10-1000)

    500

    (IF 10-500)

    500

    (IF 10-500)
    1.4-1.7 4.6-5.1 6.5-7.0 8.1-9.1 18-26 36-50 85.9+-0.5
    The input frequency range is set by the RF filter at 18/21 and  5/6cm, and by the fixed LO at 3.6cm.   
    Robledo

    only one pol -RCP-: 500

    1.4 - 1.9 GHz

    (IF 20 - 520)

    		    

    500

    (IF 50 - 550)

    70

    (tunable 18-26.5)

    70

    (tunable 39-49)  

    		  
    Sardiniae

    500

    1.3 - 1.8

    2324

    		  

    2000

    0.1 - 2.1

    5.6 - 7.6

    		  

    2000

    0.1 - 2.1

    17.9 - 25.9

    		    
    Shanghai-25m              
    Svetloe              
    Tamna        

    500-1000

    21.25 - 23.25

    fixed

    500-1000

    42.11-44.11

    fixed

    500-1000

    85-95

    tunable
    Tianma 65   4000-8000   8200-9000 18.0-26.5    
    Torun 500  500  500   500    

     

    1.4 - 1.72

    4.35 - 4.95

    or

    4.75 - 5.35

     5.9 - 6.4

    or

     6.4 - 6.9

     

     20.0 - 25.0
    tunable in range of 1 - 20 GHz with a minimum step of 1 kHz
    Ulsan        

    500-1000

    21.25 - 23.25

    fixed

    500-1000

    42.11-44.11

    fixed

    500-1000

    85-95

    tunable
    Urumqi              
    Westerbork

    160

    (tunable 1150-1750)

    1301-1460 (RFI clear)

    1645-1793 (RFI clear)

    		  not possible  not possible  not possible - - -
    Yebes  

    IF: 500-1000

    4.56-5.06

    tunable

    IF: 500-1000

    5.9-6.9

    tunable

    IF: 500-1000

    8.15-8.65

    fized

    IF: 0-1000

    21.0-24.0

    tunable

    IF: 0-2000

    41.0-49.0

    tunable

    IF: 500-1000

    81-117

    tunable
    Yonsei        

    500-1000

    21.25 - 23.25

    fixed

    500-1000

    42.11-44.11

    fixed

    500-1000

    85-95

    tunable
    Zelenchukskaya              
    VLBAd (not EVN) 500 500   500 500 500 500
    1.18 - 1.85 4.44 - 5.24   7.7 - 9.05 20.5 - 25.3 37.6 - 46.2 86-96.2
    tunable in steps of 100 MHz d d d d d

    a currently LCP only (new receiver is under construction).

    balso S-band: 0.14 (2.21-2.35)

    calso S-band: 0.24 (2.21-2.45) and Ku-band: 0.15 (11.61-12.41)

    d For more details see freq_RDBE.dat in sched catalog directory

    ealso P-band: 85, 0.305 - 0.390, 300

    f New receivers: 4-9.3 GHz (IF 0-4000 MHz) linear polarization (under test), within 2016: 12-18 GHz (IF 0-2500 MHz), 38-50 GHz (IF 0-4000 MHz)