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GBT Receivers & Frequency Ranges

ReceiverBandFrequency
Range (GHz)
FocusPolarizationBeamsPolarizations
per Beam
Prime Focus 1342 MHz
450 MHz*
600 MHz*
800MHz
.290-.395
.385-.520
.510-.690
.680-.920
PrimeLinear/Circular12
Prime Focus 2*.910-1.23PrimeLinear/Circular12
L-Band1.15-1.73GregorianLinear/Circular12
S-Band1.73-2.60GregorianLinear/Circular12
C-Band3.95-7.8GregorianLinear/Circular12
X-Band7.80-11.6GregorianCircular12
Ku-Band12.0-15.4GregorianCircular22
KPFA18.0-27.5GregorianCircular72
Ka-BandMM-F1
MM-F2
MM-F3
26.0-31.0
30.5-37.0
36.0-39.5
GregorianCircular21
Q-Band—-39.2-50.5GregorianCircular22
W-Band 4mmMM-F1
MM-F2
MM-F3
MM-F3
67-74
73-80
79-86
85-93
GregorianCircular22
MUSTANG280-100Gregorian
Argus74-116GregorianCircular161
See Proposal Guide for additional information.
* available on request

ReceiverBandBeam
Separation
FWHMGain
(K/Jy)
Aperture
Efficiency
Maximum
Instantaneous
Bandwidth (MHz)
Prime Focus 1342 MHz
450 MHz*
600 MHz*
800MHz
36′
27′
21′
15′
2.072%240
Prime Focus 2*12′2.072%240
L-Band9′2.072%650
S-Band2.8′2.072%970
C-Band1.4′2.072%3800
X-Band54″2.071%2400
Ku-Band330″32″1.970%3500
KPFA96″Greg.1.968%1800, 8000
Ka-BandMM-F1
MM-F2
MM-F3
26.0-31.0
30.5-37.0
36.0-39.5
26.8″
22.6″
19.5″
1.863-67%4000
Q-Band39.2-50.516″1.758-64%4000
W-Band 4mmMM-F1
MM-F2
MM-F3
MM-F3
286″10″1.030-48%6000
4000
4000
4000
MUSTANG210″35%20000
Argus30.4″8″20-35%1500
See Proposal Guide for additional information.
* available on request