EVN STATUS TABLES - Last update: 3 July 2023 ================ Please communicate any comments to Bob Campbell (campbell AT jive.eu) NOTE: Oct. 2016: Irbene (Ir) has been added as an EVN observatory Apr. 2015: Tianma (Tm65, T6) and SRT (Sr) have been added June 2008: New two-letter code for the Yebes 40m telescope: Ys Code Yb (the 14m Yebes telescope) is no longer used TABLE I OBSERVATORIES, TELESCOPES AND AVAILABILITY ---------------------------------------------------------------------- | EVN OBSERVATORIES | TELESCOPE | AVAILABILITY | | |Code Diameter(m)| (see also TABLE II ) | |--------------------|-----------------|-----------------------------| |Jodrell Bank (UK) |Jb-1 Lovell 76 | Wavelengths >= 6 cm | | |Jb-2 Mk2 38x25 | Wavelengths < 21 cm | |Westerbork (NL) |Wb 25 | See note (a) | |Effelsberg (DE) |Ef/Eb 100 | | |Medicina (IT) |Mc 32 | | |Noto (IT) |Nt 32 | | |Sardinia (IT) |Sr 65 | Wavelentghs 21/18, 5, 1.3 cm| |--------------------|-----------------|-----------------------------| |Onsala (SE) |On-85 (O8) 25 | Wavelengths >= 5 cm | | |On-60 (O6) 20 | Wavelengths < 5 cm, + 13 cm | |Sheshan(Shanghai,CN)|Sh 25 | | |Tianma(Shanghai,CN) |Tm65 (T6) 65 | | |Nanshan(Urumqi,CN) |Ur 25 | | |Kunming (CN) |Km 40 | 13, 3.6, 6, 5cm | |Torun (PL) |Tr 32 | | |Yebes (ES) |Ys 40 | 0.7,1.3,3.6,5,6,13cm (b) | |--------------------|-----------------|-----------------------------| |Irbene (LV) |Ir 32 | 18, 6, 5, 3.6 cm | | |Ib 16 | 6, 5, 3.6 cm | |Metsahovi (FI) |Mh 14 | 3.6, 1.3, 0.7 cm (c) | |Arecibo (USA) |Ar | see note (d) | |Wettzell (DE) |Wz 20 | Limited; 13, 3.6 cm only | |Hartebeesthoek (ZA) |Hh 26 | 18,13, 6, 5, 3.6, 1.3 | | |Ht 15 | Limited; 13, 3.6 cm only | |--------------------|-----------------|-----------------------------| |Svetloe (RU) |Sv 32 | | |Zelenchukskaya (RU) |Zc 32 | | |Badary (RU) |Bd 32 | | |KVN Yonsei (KR) |Ky 21 | Wavelengths <=1.3cm | |KVN Ulsan (KR) |Ku 21 | Wavelengths <=1.3cm | |KVN Tamna (KR) |Kt 21 | Wavelengths <=1.3cm | ---------------------------------------------------------------------- OTHER OBSERVATORIES ---------------------------------------------------------------------- |e-MERLIN (UK) out-stations | | Cambridge |Cm 32 | 21/18, 6, 5, 1.3cm | | Darnhall |Da 25 | 21/18, 6, 5, 1.3cm | | Defford |De 25 | 21/18, 6, 5cm see note (e) | | Knockin |Kn 25 | 21/18, 6, 5, 1.3cm | | Pickmere (d) |Pi 25 | 21/18, 6, 5, 1.3cm | |Robledo (Madrid, ES)|Rob70 DSS-63 70 | 13, 3.6, 18, 1.3cm | | |Rob34 DSS-65 34 | 13, 3.6 cm | | | DSS-54 34 | 13, 3.6, 0.7 cm | | | DSS-55 34 | 13, 3.6 cm | |Matera (IT) |Ma 20 | see note (f) | |Ny-Alesund (NO) |Ny 20 | see note (f) | ---------------------------------------------------------------------- (a) The default mode of operation from session 3/2015 is a single antenna (RT0 for 5cm, RT1 for all other bands). Development of tied-array input for the 12 antennas having the focal-plane-array feed system APERTIF is on-going. Note: Hour-angle restriction is +- 6 h (b) The Yebes 40m telescope was operational at 1.3cm, 3.6cm, 5cm, 6cm and 13cm from June 2009 and 7 mm (32-50GHz) from 2019 (also 3mm; 72-90 GHz). The new C-X broadband receiver (4.5-9 GHz) is operational since 2022. (c) 3.6cm at Metsahovi is on a best-effort basis. (d) The 305m telescope of the Arecibo Observatory has become unavailable, following the recent structural casualties. Possibilities of using another antenna at Arecibo are being investigated. (e) Defford is a mesh dish, so can go no higher than C-band (even there, its sensitivity is less than the other e-MERLIN out-stations). Pickmere has also been known as Tabley (Ta). (f) These non-EVN telescopes may be requested for VLBI observations together with the EVN, but their use must be arranged by the Proposers themselves by application to the relevant observatory. See also http://www.evlbi.org/sites/files/users/Gina/EVNaffiliatecode.txt TABLE II ANTENNA+RECEIVER PERFORMANCE (SEFD = system noise in Jy) ------------------------------------------------------------------------------ |Wavel'th| 92 | 49 | 30 %| 21 #| 18 #| 13 *| 6 |5 (g)| 3.6*| 1.3 |0.7 cm| |--------|-----|-----|-----|-----|-----|-----|-----|-----|-----|-----|-------| |Jb-1 (e)| 132 | 83 | | 35=| 40=| | 70 | 80 | | | | |Jb-2 (d)| | | | 325=| 300=| | 300 | 300 | | 910 | | |Cm | | | | 200=| 175=| | 175 | 225 | | 720a| | |Da | | | | 450=| 450=| | 325 | 325 | |1500a| | |De | | | | 350=| 350=| |1000 |1600 | | | | |Kn | | | | 425=| 400=| | 325 | 325 | |1500a| | |Pi | | | | 400=| 450=| | 325 | 325 | |1500a| | |Wb (b)|2100 | |1680 | 420=| 560=| |1680 |1600 |1680 | | | |Eb/Ef | 600 | 600 | 65 | 20=| 19=| 300r| 20 | 25k| 20 | 70 | 200 | |Mc | | | | 490=| 700=| 400 | 170 | 840 | 320 | 700+| | |Nt | | | |740=n|740=n| 475n| 260 |1100 | 840n| 800 | 900 | |Sr | 67 | | | 67 | 67 | | | 50 | | 138 | | |--------|-----|-----|-----|-----|-----|-----|-----|-----|-----|-----|-------| |On-85 | | | 900 | 310=| 310=| | 480 | 850 | | | | |On-60 | | | | | |1110r| | | 785j|1200 | 1310 | |Tr | | |2000 | 250=| 300=| | 220 | 650 | | 500 | | |Ys | | | | | |1400 | 180 |180 | 220 | 220 | 340 | |Ur | f| f| f| 300=| 300=| 560 | 250 | | 350 | 850 | | |Sh | | | | | 670 | 800 | 720 |1500 | 800 | | | |Tm65 | | | | 39k| 39k| 46 | 26 | 26 | 48 | 70q| 120q | |Km | | | | | | 350 | 290 | 290 | 480 | | | |--------|-----|-----|-----|-----|-----|-----|-----|-----|-----|-----|-------| |Ir | | | | | 700 | | 430 | 480 |1300p| | | |Mh !| | | | | |4500r| | |3200r|2608 | 4500 | |Ar (m)| 12 | | 3 | 3.5 | 3 | 3 | 5 | 5 | 6 | | | |Hh | | | | | 430 | 410 | 650 | 700 | 630 | 950 | | |Ht | | | | | |1050 | | |1400 | | | |Wz | | | | | |1250r| | | 750r| | | |----------------------------------------------------------------------------| |Sv | | | | 360 | 360 | 330 | 250 | | 200 | 710 | | |Zc | | | | 300 | 300 | 330 | 400 | | 200 | 710 | | |Bd | | | | 330 | 330 | 330 | 200 | | 200 | 710 | | |Ky | | | | | | | | | |1288 | 1919 | |Ku | | | | | | | | | |1288 | 1919 | |Kt | | | | | | | | | |1288 | 1919 | ------------------------------------------------------------------------------ ------------------------------------------------------------------------------ |Rob70 | | | | | 27r| 20- | | | 18 | 83 | | |Rob34 | | | | | | 150 | | | 106-| | | |Ny | | | | | | 850r| | |1255r| | | ------------------------------------------------------------------------------ All receivers (rx's) are dual circular polarisation unless otherwise indicated: L = LHC polarisation only r = RHC polarisation only s = only single (circular) polarisation; can be selected by investigator (yy) planned for year 20yy (*) All observatories with 13 and 3.6 cm can also observe both simultaneously in only RCP (=) Same receiver box for 21/18 cm. (a) These e-MERLIN out-station SEFDs at K-band SEFDs are conservative. (b) Wb entries assume participation of just a single antenna. (d) Jb-2 normally used at 18 and 21 cm only when Jb-1 not available (but may replace Jb-1 in EVN-MERLIN sessions with prior justification) (e) Using the Lovell antenna the duration of any two adjacent scans must add up to at least 10min. (Contact A. Gunn for more details) (+) New 7-beam 1.3 cm receiver at Medicina. Only the central beam is used for VLBI (October 2008). (!) The Dual polarization RX at 43GHz in Metsahovi is currently out of service (Jun 2005) but can become available if there is proposal demand. The SEFD reported is from the old receiver. On the S/X receiver RCP only is installed. SEDF from the Geodesy SKED programme. The S/X receiver belongs to the Finnish Geodetic Institute and is thus not generally available for EVN observations by default. PIs wishing to use the receiver need to contact Metsahovi to initiate arrangements with FGI to get the permission to use the receiver. (-) Rob34 (DSS-65) At 13cm a HEMT RX (comissioned 2006). At 3.6cm a MASER rx (SEFD specified in the table) and a HEMT rx (SEFD 156Jy). For Rob70: At 13cm a maser RX (SEFD in the table) and a HEMT RX, SEFD=24, all other receivers are HEMTs. 7mm RX (commisioned in 2008) at one of the 34m telescopes (DSS-54) (%) 30cm Frequency range: See Table IIIC (#) See Table IIIA (f) 92/49 and 30cm receivers are not available any more at Urumqi since 2012. (g) See Table IIIb (j) The Onsala dual-polarization X band receiver has an SEFD of 850 at LCP and 720 at RCP (the number in the table is the mean). The SEFD for the S/X dichroic at X-band is 1300 Jy. (k) Linear polarization receiver; correlation output will be transformed to a circular-polarization basis prior to distribution of the FITS files. (m) These numbers for Arecibo are for the decommissioned 305m telescope, left in for the purposes of legacy documentation. Will be updated with values appropriate to a different antenna when more is known. (n) The Noto L(21,18)/S(13)/X(3.6) receiver has SEFDs of 771/496/842 at RCP and 710/454/835 at LCP (the numbers in the table are means). (p) The Irbene SEFD at 3.6 cm has been estimated based on a single NME from Oct/Nov 2015. (q) The SEFD values for Tianma65 at 1.3 and 0.7 cm are quoted for 50 degrees elevation. TABLE III FREQUENCY (RECEIVER) AGILITY For more details than in the below summary table, refer to the tables of each station's transition times between any two specific frequency bands maintained at the EVN TOG wiki: https://deki.mpifr-bonn.mpg.de/Working_Groups/EVN_TOG/EVN_Frequency_agility SCHED CONTR = Automatic change from VLBI schedule, no operator intervention ===> All other rx changes on the EVN take timescales >= 30 mins ------------------------------------------------------------------------------ |SITE|SWITCH|SCHED| WAVELENGTHS | COMMENTS | | | TIME |CONTR| | | |----|------|-----|-------------------------|--------------------------------| |Eb | 40s | yes |13, 6, 5, 3.6, 1.3, 0.7 |sec. focus | |Ef | 40s | yes |13, 6, 5, 3.6, 1.3, 0.7 |sec. focus | |Eb | 40s | yes |18,21 |single rx; I.F. level changes !!| |Ef | 40s | yes |18,21 |single rx; I.F. level changes !!| |Wb | 300s | no |92,30,21,18,13,6,3.6 |prime focus | |Jb1 | 180s | yes |18/21, 6, 5 | | |Jb2 | 180s | yes |18/21, 6, 5, 1.3 | | |Cm |60min | no |18/21, 6, 5, 1.3 | | |Da |60min | no |18/21, 6, 5, 1.3 | | |De |60min | no |18/21, 6, 5 | | |Kn |60min | no |18/21, 6, 5, 1.3 | | |Pi |60min | no |18/21, 6, 5, 1.3 | | |Mc | 70s | yes |18/21, 13, 3.6, 1.3 |prime focus | |Mc | 240s | yes |18/21, 13, 3.6, 1.3<=> 6 |prime <=> secondary focus | |Nt | 60s | no |18/21, 13, 3.6 |400s to 12h any other change | |Sr | 300s | no |18/21 <=> 5cm |primary to tertiary focus | |Sr | 300s | no |18/21 <=> 1.3cm |primary to secondary focus | |Sr | 60s | no |5cm <=> 1.3cm |tertiary to secondary focus | |On85| 0s | yes |18, 21 |Changes in PRC file | |On85| 0s | yes | 6,5 |Changes in PRC file | |On60| 600s | no |1.3, 0.7, 0.3 | | |On60|60min | no |3.6/13 to <1.3 | | |Tr | 30s | yes |18,21 |SCHED switch between 18/21 | |Tr | 30s | yes |6, 5 |SCHED switch between 5/6 | |Tr | 300s | no |18/21, 6, 5, 1.3 |Control by an operator action | |Hh | 30s | yes |18, 13, 6, 5, 3.6, 1.3 | | |Ht | 30s | yes |13, 3.6 | | |Sh | 5min| no |13/3.6, 6, 1.3 | | |Tm65| | |18/21, 13, 6/4.5, 3.6 | | |Ur | 50min| no |1.3,3.6/13,6,18/21 |no automatic changes | |Ro70| 300s | yes |18,3.6/13,1.3 |ifadjust | |Ys | <5min| yes |13/3.6, 6/5/3.6, 1.3/0.7 |mirror movement may be required | ------------------------------------------------------------------------------ TABLE IIIA 21/18cm FREQUENCY RANGE + AGILITY SCHED CONTR=switch 21/18 automatically from schedule. LOCAL CMDS=extra local commands must be inserted in schedule. ----------------------------------------------------------------------------- |SITE |SCHED|LOCAL| Frequency range | COMMENTS | | |CONTR|CMDS | | | |-----|-----|-----|----------------------|----------------------------------| |Eb/Ef| yes | no | 1270-1450, 1580-1730 | see note (^^) | |Jb1/2| yes | yes | 1250 - 1750 |Continuous band (no delay) | |Cm | yes | yes | 1250 - 1750 |Continuous band (no delay) | |Da | yes | yes | 1250 - 1750 |Continuous band (no delay) | |De | yes | yes | 1250 - 1750 |Continuous band (no delay) | |Kn | yes | yes | 1250 - 1750 |Continuous band (no delay) | |Pi | yes | yes | 1250 - 1750 |Continuous band (no delay) | |Wb | no | yes | 1200 - 1750 |rephase after agility (5 min) | |Mc | yes | yes | 1350-1450, 1585-1715 |21 and 18: diff. pointing models | |Nt | yes | no | 1316 - 1745 |Continuous band (no delay) | |Sr | no | no | 1300 - 1800 |Four differet filters (ses note $)| |On85 | yes | yes | 1254 - 1766 |Continuous band (no delay) | |Tr | yes | no | 1180-1610, 1325-1720 | | |Ur | yes | no | 1400 - 1720 | | |Hh | - | | 1590-1750 | | |Sh | - | | 1600-1740 | | |Tm65 | - | | 1350 - 1730 |linear poloarization (^LP) | |Ir | - | - | 1400-1600 1600-1720 |1400-1600 = LCP only | |Sv | - | - | 1380 - 1720 | | |Zc | - | - | 1380 - 1720 | | |Bd | - | - | 1380 - 1720 | | ----------------------------------------------------------------------------- (^^) The firstLO for the Ef L-band system is tunable, but the total available IF width is limited to the range 80-240 MHz from the firstLO. ($) The four filters for Sr are: 1320-1780, 1350-1450, 1300-1800, 1625-1715. (^LP) Linarly-polarized receiver; correlation output will be transformed to a circular-polarization basis prior to distributing the FITS files. TABLE IIIB 5cm: 6.0/6.7 GHz AGILITY SCHED CONTR=switch 6.0/6.7 automatically from schedule. LOCAL CMDS=extra local commands must be inserted in schedule. ------------------------------------------------------------------------ |SITE |SCHED|LOCAL| Frequency range | COMMENTS | | |CONTR|CMDS | | | |-----|-----|-----|----------------------|-----------------------------| |Eb/Ef| yes | no | 4000-9300 | linear polarization (^LP) | |Jb1/2| yes | yes | 4000-7500 | | |Cm | yes | yes | 4000-7500 | | |Da | yes | yes | 4000-7500 | | |De | yes | yes | 4000-7500 | | |Kn | yes | yes | 4000-7500 | | |Pi | yes | yes | 4000-7500 | | |Wb | yes | no | 6000-6900 | | |Mc | yes | yes | 5900-7000 | | |Nt | - | - | 6000-6800 * | New 5cm receiver | |Sr | yes | no | 5700-7700 | | |On85 | yes | yes | 5700-6725 * | changes in the PRC file | |Tr | no | no | 5900-6900 * | 15min break between freq | |Ar | | | 5200-6100 * | | |Hh | yes | no | 5900-6750 | | |Ys | yes | no | 4500-9000 | Available since 2022 | |Sh | yes | no | 6400-6825 | Available since June 2010 | |Tm65 | | | 4000-8000 | | |Ir | | | 4500-8800 | 4 selectable 1GHz bands | ------------------------------------------------------------------------ (^LP) Linarly-polarized receiver; correlation output will be transformed to a circular-polarization basis prior to distributing the FITS files. * Frequency range from the SCHED freq.dat file TABLE IIIC UHF (30cm) FREQUENCY RANGES ------------------------------------------------------------------------------- |SITE | FREQUENCY RANGE(S) | POLSN. | FILTER | STRONG INTERFERENCE | ------------------------------------------------------------------------------- |Ef(%)| 800 - 1300 | LCP+RCP | 100MHz | 750-790,800,822-830,880-930,| | | | | | 940-960,960-1005,1089-1091 | |Wb | 750 - 1200 | LCP+RCP | ? | | |On-25| 780 - 1200 | LCP+RCP | 40MHz | 920-970,1010-1170 | |Tr | 780- 925, 965-1105 | 2xLIN | ? | ca.943 | ------------------------------------------------------------------------------- (%) This receiver is currently not available, and might not come back at all. There are plans for a new low-frequency receiver, but no definitive time line. TABLE IIID 21-24 GHz (1.3cm) FREQUENCY RANGES ------------------------------------------------------------------------------- |SITE | FREQUENCY RANGE(S) | POLSN. | FILTER | COMMENTS | ------------------------------------------------------------------------------- |Ef | 18000 - 26000 | | | | |Jb2 | 18600 - 25100 | | | | |Cm | 18600 - 25100 | | | | |Da | 18600 - 25100 | | | | |Kn | 18600 - 25100 | | | | |Pi | 18600 - 25100 | | | | |Mc | 18000 - 26000 | | | New Receiver | |Nt | 21826 - 22606 | | | | |Sr | 18000 - 26500 | | | | |On-20| 19000 - 26000 | | | | |Sh | 22100 - 22600 | | | | |Ys | 19400 - 25400 | | | | |Mh | 21980 - 22480 | | FIXED | FIXED LO | |Tm65 | 18000 - 26500 | | | | |Ur | 22100 - 24000 | | | LO=22000 MHz and tunable | |Hh | 21400 - 24100 | | | Cooled receiver | |Sv | 22020 - 22520 | | | | |Zc | 22020 - 22520 | | | | |Bd | 22020 - 22520 | | | Under upgrade | |Tr | 20000 - 25000 | | | | |Ro70 | 18100 - 26500 | | | | |Ky | 18000 - 26000 | | | | |Ku | 18000 - 26000 | | | | |Kt | 18000 - 26000 | | | | ------------------------------------------------------------------------------- TABLE IV EVN RECORDING EQUIPMENT ** ** ** Column (VD) - VDIF format ** Column (eV) - eVLBI capability ** ---------------------------------------- |TELESCOPE| RECORD MK5|VD|eV|NO.| | Code | TERMINAL A|B| | |BBC| |---------|----------------|-|--|--|---| | Jb-1/2 | DBBC (e) | |Y |Y |16 | | Cm | (&) | |Y |Y |2 | | Da | (&) | |Y |Y |2 | | De | (&) | |Y |Y |2 | | Kn | (&) | |Y |Y |2 | | Pi | (&) | |Y |Y |2 | | Wb (w) | DBBC (e) | |Y |Y |16 | | Ef | DBBC | |Y |Y |16 | | Eb | RDBE | |Y |Y | | | Mc | DBBC | |Y |Y |16 | |---------|----------------|-|--|--|---| | Nt | DBBC | |Y |Y |16 | | Sr | DBBC | |Y |Y |16 | | On-85/60| DBBC | |Y |Y |16 | | Tr | DBBC | |Y |Y |16 | | Sh | DBBC/CDAS | |Y |Y |16 | | Tm65 | DBBC/CDAS | |Y |Y |16 | | Ur | DBBC/CDAS |Y| | |16 | | Km | DBBC/CDAS | |Y |Y |16 | |---------|----------------|-|--|--|---| | Ys | DBBC | |Y |Y |16 | | Hh | DBBC | |Y |Y |16 | | Ht | DBBC | |Y |Y |16 | | Sv | R1002 |Y| |Y |16 | | Zc | R1002 |Y| |Y |16 | | Bd | R1002 |Y| |Y |16 | |---------|----------------|-|--|--|---| | Ky | OCTAD/KDAS (g) |Y| |y*|16 | | Ku | OCTAD/KDAS (g) |Y| |y*|16 | | Kt | OCTAD/KDAS (g) |Y| |y*|16 | | Mh | DBBC (e) | |Y |Y |16 | | Ar | RDBE | |Y |Y | 8 | | Wz | DBBC | |Y | |16 | | Rob70/34| DVP (f) | |Y | | | ---------------------------------------- | Ir | DBBC | |Y |Y |16 | | Sm | MK3A | | | | | | Ma | MK3A | | | | | | Ny | MK4 | | | | | ---------------------------------------- & e-MERLIN outstations can participate as individual antennas in EVN observations using 2 64MHz channels, which will be split up to conform to other stations' channelization during correlation y* eVLBI tested on the KVN stations, but not yet in regular operation. (e) Only two IF inputs into DBBC (f) NASA/JPL digital backend (g) KVN data acquisition systems, digital (w) Wb uses a DBBC on a single antenna (RT0 for 5cm, RT1 for other bands), starting from session 3/2015. (yy) Planned for year 20yy tested DBBC back-end filters: firmware dependent: v104, v105, v106: 16, 8, 4, 2, 1 MHz v105E, v106E: 32, 16, 8, 4, 2 MHz E-series firmware no longer in use v107: 64, 32, 16, 8, 4, 2 MHz (64 ,2 MHz filter shapes not ideal) ============================================================================== The latest confirmation of information from observatories was: Hh 20 08 07 SEFD for 1.3cm dual pol RX (from N07K1) Ur 28 10 08 New SEFDs 4cm,13cm,21cm,18cm and update on filters 12 01 09 e-VLBI Dec 2008 Cm 22 06 09 New 5cm SEFD Jb 22 06 09 New 5cm SEFD New 6cm Rx, previous SEFD was 330Jy Ef 02 11 10 New L band receiver Frequency range 11 11 15 18cm freq. range in Table IIIA (low end to 1580) 23 02 16 comment about L-band IF range 23 11 16 new K-band Rx: wider frequency range, lower SEFD Sh 22 09 08 X band SEFD=800 Jy (to 1100 Jy) S band SEFD=800 Jy 18 cm SEFD=670 Jy C band SEFD=720 Jy 1.3 cm SEFD=1700 Jy (good weather) New C band freq range 4650-5150 eVBLI capable Ys 22 06 09 5cm SEFD (from N09M1) 5-6cm Ys RX (freq range) in March 2009. 200Jy SEFD for X-band RX Moved info of Yebes14m to EVNstatus_Historical_info Retired (Yb) two-letter code. Yebes40m is now (Ys) Wb 02 09 09 Either S or X band at LCP or RCP - Only Mk5B Ro 29 05 08 7mm RX in a 34m telescope (2008) Ar 26 03 04 New SEFD for X band receiver Ny 07 02 01 Km 02 09 09 Kunming: New entry Sv 14 10 09 SEFD taken from Finkelstein et al 9th EVN Symposium Zc 14 10 09 SEFD taken from Finkelstein et al 9th EVN Symposium Bd 14 10 09 SEFD taken from Finkelstein et al 9th EVN Symposium -------------------------------------------------------------------------------- The following new SEFDs were estimated by J. Yang. Sv 16 09 11 SEFD: 360 Jy at 18cm (N11L3); 250 Jy at 6cm (N11C1) Zc 16 09 11 SEFD: 300 Jy at 18cm (N11L3); 400 Jy at 6cm (N11C1) Bd 16 09 11 SEFD: 330 Jy at 18cm (N11L3); 200 Jy at 6cm (N11C1) Jb1 16 09 11 SEFD: 65 Jy at 18cm (N11L3); 80 Jy at 6cm (N11C1) Mc 16 09 11 SEFD: 700 Jy at 18cm (N11L3) Tr 16 09 11 SEFD: 300 Jy at 18cm (N11L3) Wb 16 09 11 SEFD: 40 Jy at 18cm (N11L3) [tied-array] Ys 16 09 11 SEFD: 160 Jy at 5&6cm, Converted to a cooled receiver. Sh 16 09 11 SEFD: ~1500 Jy at 5cm, Non-cooled receiver Available since June 2010 Frequency range from Zhiqiang Shen. Ef 16 09 11 SEFD: 600 Jy at 90cm (Tsys/DPFU in N11P1) New receiver. Avaialbe since June 2011 -------------------------------------------------------------------------------- Ur 22 10 12 New dual-pol receivers at 13, 3.6 and 1.3cm SEFD: 300 Jy at 18/21cm; 250 Jy at 6cm 560 Jy at 13cm; 350 Jy at 3.6cm 850 Jy at 1.3cm. 92/49cm and 30cm receivers are not available. Wb 02 11 12 Removed wrong comment "y" in TABLE II. Mh 22 01 13 0.7mm receiver was not avaible any more Tr 22 01 13 Added 1.3cm receiver information Tr 20 02 13 Modified 5cm SEFD (400 -> 650 Jy) and L-band frequency upper limit (1750 -> 1725 MHz) Updated its frequency agility Sh 20 02 13 New receiver with dual-pol at both 13 and 3.6 cm Km 20 02 13 New receiver with dual-pol at both 13 and 3.6 cm Jb 02 07 13 21cm freq. range in Table IIIA (Ref. EM107A) KVN 02 07 13 Inserted KVN stations in Tables I, II, and IIID Ys 28 08 13 Added the new 0.7cm receiver (SEFD: 480 Jy) Updated 1.3cm frequency information and Table III Wb 15 10 13 Updated the observing frequency range of 5cm 6100 - 6700 --> 6000 - 6900 MHz KVN 04 04 14 Diameters, SEFDs updated Hh 08 04 14 SEFD updates, new 15m telescope and DBBC backend(s) KVN 30 06 14 Information for Table IV included Wb 26 01 15 Removed 49cm Ar 26 01 15 Added footnote about 49cm receiver status Sr 23 04 15 Added information in Tables I, II, III, IIIA, IIIB, IIID, IV Mc 23 04 15 Updated table IV Jb 23 04 15 Updated table IV Cm 23 04 15 Updated table IV Wb 21 04 16 Table I & II adjusted to participation of a single antenna at all bands. Ro 20 09 16 L-band receiver shifts from LCP-only to RCP-only Ys 15 06 17 Added 13cm SEFD (per P. de Vicente) Tm65 22 08 17 1.3 cm and 7 mm receivers included in table II Tm65 27 10 17 1.3cm frequency ranges included in table IIID On 20 11 17 dual-pol X-band and 1.3cm receivers updated i in table II, along with footnote (j) Jb 03 08 18 Updated tables I, III, IIIA, IIIB, IIID, IV Cm 03 08 18 Updated tables I, III, IIIA, IIIB, IV Cm 04 11 18 Updated table IIID (also for other e-MERLIN outstations) Cm 17 04 19 Updated 21, 18, 6, 5cm SEFDs (also for other e-MERLIN outstations) Nt 19 06 19 Updated K-band frequency range Nt 28 08 19 Updated various tables for new L/S/X receiver, removed 30cm receiver from table IIIC. Wb 06 03 20 Removed 13cm km 15 11 20 Updated 6, 5cm SEFDs Ar 04 01 21 added footnotes about the unavailability of the 305m telescope (table I); removed from the various frequency-coverage tables III(*). SEFD for the 305m telescope left in table II pending more certainty about a new antenna. Ro 04 01 21 added DSS-55, updated available bands (table I) O8 08 06 21 Updated 21cm, 18cm SEFDs Cm 08 06 21 Updatd 1.3cm SEFDs (also for other out-stations) Ys 26 04 23 Updated various tables; new C-X receiver Hh 26 04 23 Updated 1.3cm SEFD for cooled Rx Ef 27 04 23 Updated various tables; new wide-band C-X receiver for 6.0/6.7 GHz (linear polarizations) Mh 04 05 23 Updated bands available Tr 03 07 23 Updated 1.3cm front-end range table IIID ------------------------------------------------------------------------------- Table IV - clean out Mk3 modes and description, split out Mark5A and Mark5B New column e = eVLBI capability. (29 05 08) - Stations with new digital backends DBBC, R1002, CDAS were updated. (02 07 13) - cleaned up "narrow-band filters" column for DBBC stations and added a note (23 04 15) - updated various VDIF, eVLBI, DAS, and e-MERLIN out-station information (04 01 20, 07 06 21) ==============================================================================