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SRF1, SRF3 Series

Multi-Channel Passive Splitter / Combiner

The SRF1 and SRF3 are compact, high performance, multi-channel, passive splitter/combiner arrays, designed for expansion of RF routing systems and other applications requiring high-density, rackmount splitter packages. The wide pass bandwidth includes the extended L-band range. The SRF series may be used in any L-Band signal distribution system where multiple channels of passive 1x2, 1x4, 1x8 or 1x16 splitter/combiners are needed.

The module functions as a splitter or combiner depending on the RF connections. The SRF unit can be configured as a splitter by injecting an RF signal to the common port. The outputs will be a reduced amplitude replica of the input signal. Injecting RF signals into the combiner input ports (splitter outputs) results in the summation at the common port with reduced amplitude. The monitor port allows monitoring of the common port without interruption of the signal path.

Features

  • Passes all signal modulation formats
  • Completely passive design for high-reliability
  • Compact design, may be front or rear rack mounted
  • Passes LNB power and 22kHz tone on all parts except monitor
  • Monitor port allows for monitoring of Common port signal without interruption of signal path

Specifications

SRF1

SRF1-16-1x2LBSRF1-8-1x4LBSRF1-4-1x8LBSRF1-2-1x16LB
Frequency Range40MHz-3000MHz40MHz-3000MHz200MHz-2200MHz200MHz-3000MHz
Insertion Loss4.2dB ±0.5dB7.6dB ±0.75dB11dB ±1dB14dB ±1dB
Isolation (channel to channel)> 60dB> 55dB> 55dB> 55dB
Return Loss (> 250MHz)> 15dB> 15dB> 14dB> 14dB
Number of Channels16x 1x28x 1x44x 1x82x 1x16
Dimensions19"W x 1.75"H x 5.5"D
(483mm x 45mm x 140mm)
19"W x 1.75"H x 5.5"D
(483mm x 45mm x 140mm)
19"W x 1.75"H x 5.5"D
(483mm x 45mm x 140mm)
19"W x 1.75"H x 5.5"D
(483mm x 45mm x 140mm)

SRF3

SRF3-64-1x2LBSRF3-32-1x4LBSRF3-16-1x8LBSRF3-8-1x16LB
Frequency Range40MHz-3000MHz40MHz-3000MHz600MHz-2200MHz800MHz-2200MHz
Insertion Loss4.2dB ±0.5dB7.6dB ±0.75dB11dB ±1dB14dB ±1dB
Isolation (channel to channel)> 60dB> 55dB> 55dB> 55dB
Return Loss (> 250MHz)> 15dB> 15dB> 14dB> 14dB
Number of Channels64x 1x232x 1x416x 1x88x 1x16
Dimensions19"W x 5.25"H x 5.5"D
(483mm x 134mm x 140mm)
19"W x 5.25"H x 5.5"D
(483mm x 134mm x 140mm)
19"W x 5.25"H x 5.5"D
(483mm x 134mm x 140mm)
19"W x 5.25"H x 5.5"D
(483mm x 134mm x 140mm)

All Models

Impedance 75Ω (50Ω optional)
Connector BNC per IEC 61169-8 Annex A, (F type and SMA optional)

Monitor Port

Connector BNC per IEC 61169-8 Annex A, (F type optional)
Level -20dB ±2dB referenced to the Common Port

Ordering Information

SRF1 Series
SRF1-16-1x2LB 16-channel 1x2 splitter/combiner in 1RU chassis, 75Ω BNC connectors on all ports, used in multi-frame XRF router systems
SRF1-16-1x2LB-F75 16-channel 1x2 splitter/combiner in 1RU chassis, 75Ω F-Type connectors, used in multi-frame XRF router systems
SRF1-8-1x4LB 8-channel 1x4 splitter/combiner in 1RU chassis, 75Ω BNC connectors on all ports, used in multi-frame XRF router systems
SRF1-8-1x4LB-F75 8-channel 1x4 splitter/combiner in 1RU chassis, 75Ω F-Type connectors, used in multi-frame XRF router systems
SRF1-4-1x8LB 4-channel 1x8 splitter/combiner in 1RU chassis, 75Ω BNC connectors on all ports, used in multi-frame XRF router systems or for both RF splitting
SRF1-4-1x8LB-F75 4-channel 1x8 splitter/combiner in 1RU chassis, 75Ω F-type connectors on all ports, used in multi-frame XRF router systems or for both RF splitting
SRF1-2-1x16LB Dual 1x16 L-Band splitter/combiner in 1RU chassis, 75Ω BNC connectors on all ports
SRF1-2-1x16LB-F75 Dual 1x16 splitter/combiner in 1RU chassis, 75Ω F-type connectors on all ports
SRF3 Series
SRF3-64-1x2LB 64-channel 1x2 splitter/combiner in 3RU chassis, 75Ω BNC connectors on all ports, used in multi-frame XRF router systems
SRF3-64-1x2LB-F75 64-channel 1x2 splitter/combiner in 3RU chassis, 75Ω F-Type connectors on common and monitor ports, BNC on dual ports, used in multi-frame XRF router systems
SRF3-32-1x4LB 32-channel 1x4 splitter/combiner in 3RU chassis, 75Ω BNC connectors on all ports, used in multi-frame XRF router systems
SRF3-32-1x4LB-F75 32-channel 1x4 splitter/combiner in 3RU chassis, 75Ω F-Type connectors, on all ports, used in multi-frame XRF router systems
SRF3-16-1x8LB 16-channel 1x8 splitter/combiner in 3RU chassis, 75Ω BNC connectors on all ports, used in multi-frame XRF router systems
SRF3-16-1x8LB-F75 16-channel 1x8 RF splitter/combiner in 3RU chassis, 75Ω F-Type connectors
SRF3-8-1x16LB 8 1x16 L-Band splitters/combiners in 3RU chassis, 75Ω BNC connectors on all ports
SRF3-8-1x16LB-F75 8 1x16 L-Band splitters/combiners in 3RU chassis, F-type connectors on all ports