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Blonder Tongue’s SRT Series of indoor 1
GHz taps are the standard for directional
couplers used in broadband systems
such as those in educational, correctional,
commercial, and MDU’s. Models are
available with 2, 4, and 8 tap ports and
have tap values from 35 dB to 4 dB
(model dependent) in 3 dB increments.
All models have die-cast housings and
provide RFI shielding of 120 dB.
SRT Series
Indoor 5-1000 MHz Taps
969 Horsham Road lHorsham, Pennsylvania 19044 USA l Phone: 215-675-2053 Fax: 215-675-7543 linfo@tonercable.com
SRT-2A Specifications
Tap Value 4 8 11 14 17 20 23 26 29 32
Insertion Loss (dB)
5 MHz: * 4.2 2.4 1.7 1.2 1.0 0.7 0.7 0.7 0.7
300 MHz: * 4.2 2.4 1.7 1.2 1.0 0.7 0.7 0.7 0.7
450 MHz: * 4.2 2.4 1.7 1.2 1.0 0.7 0.7 0.7 0.7
500 MHz: * 4.9 2.8 1.8 1.5 1.1 1.0 1.0 1.0 1.0
600 MHz: * 5.5 3.0 2.0 1.8 1.3 1.2 1.2 1.2 1.2
1000 MHz: * 6.0 3.6 2.6 2.1 1.6 1.4 1.4 1.4 1.4
Return Loss (In/Out) (dB)
5-10 MHz: 18 16 18 18 18 18 18 18 18 18
10-50 MHz: 20 18 20 20 20 20 20 20 20 20
50-750 MHz: 18 18 20 20 20 20 20 20 20 20
750-1000 MHz: 16 16 16 16 16 16 16 16 16 16
Return Loss (Tap) (dB)
5-10 MHz: 16
10-50 MHz: 18
50-750 MHz: 20
750-1000 MHz: 18
Isolation Tap-to-Tap (dB)
5-10 MHz: 22
10-450 MHz: 26
450-750 MHz: 25
750-1000 MHz: 22
Isolation Out-to-Tap (dB)
5-400 MHz: - 22 25 28 31 35 36 38 40 40
400-500 MHz: - 20 23 25 28 32 35 39 42 45
500-600 MHz: - 17 21 22 25 29 33 36 39 42
600-1000 MHz: - 15 17 18 20 22 25 25 27 28
Tap Tolerance (± dB)
5-10 MHz: 1.0 1.0 1.0 1.0 1.0 1.0 1.0 1.0 1.0 1.0
10-550 MHz: 1.0 1.0 1.0 1.5 1.5 1.5 1.5 1.5 1.5 1.5
550-1000 MHz: 1.0 1.5 1.5 1.5 1.5 1.5 1.5 2.0 2.0 2.0
Features
• 1 GHz Bandwidth
• 2, 4, & 8 Port Models
• 120 dB RFI Shielding
• Diecast Housing
• Built-In Ground Block
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Specifications Subject To Change Without Notice Rev 09-11 ©Toner Cable Equipment, Inc.
969 Horsham Road lHorsham, Pennsylvania 19044 USA l Phone: 215-675-2053 Fax: 215-675-7543 linfo@tonercable.com
SRT Series
Indoor 5-1000 MHz Taps
SRT-4A Specifications
Tap Value 8 11 14 17 20 23 26 29 32 35
Insertion Loss (dB)
5 MHz: * 3.5 1.8 1.0 0.7 0.7 0.5 0.5 0.5 0.5
300 MHz: * 3.5 1.7 1.0 0.7 0.6 0.5 0.5 0.5 0.5
400 MHz: * 4.0 2.1 1.5 1.1 0.8 0.7 0.7 0.7 0.7
500 MHz: * 4.5 2.3 1.8 1.3 1.2 1.0 0.8 0.8 0.8
600 MHz: * 5.5 2.5 2.0 1.5 1.3 1.1 1.0 1.0 1.0
1000 MHz: * 6.5 3.0 2.5 1.8 1.5 1.3 1.3 1.3 1.3
Return Loss (In/Out) (dB)
5-10 MHz: 18 18 16 18 18 18 18 18 18 18
10-50 MHz: 20 20 18 20 20 20 20 20 20 20
50-450 MHz: 18 18 18 20 20 20 20 20 20 20
450-750 MHz: 18 18 18 18 18 18 18 18 18 18
750-1000 MHz: 16 16 16 16 16 16 16 16 16 16
Return Loss (Tap) (dB)
5-10 MHz: 18
10-750 MHz: 20
750-1000 MHz: 18
Isolation Tap-to-Tap (dB)
5-10 MHz: 22
10-450 MHz: 26
450-750 MHz: 25
750-1000 MHz: 22
Isolation Out-to-Tap (dB)
5-400 MHz: - 24 27 31 33 37 38 40 43 45
400-500 MHz: - 24 25 26 31 34 37 40 42 45
500-600 MHz: - 21 21 23 27 29 31 35 38 40
600-1000 MHz: - 20 20 22 24 26 27 27 30 30
Tap Tolerance (± dB)
5-450 MHz: 1.0 1.0 1.0 1.0 1.0 1.0 1.0 1.0 1.0 1.0
450-750 MHz: 1.0 1.0 1.5 2.0 2.0 2.0 2.0 2.0 2.0 2.0
750-1000 MHz: 1.5 1.5 2.0 2.0 2.0 2.0 2.0 2.0 2.0 2.0
SRT-8A Specifications
Tap Value 11 14 17 20 23 26 29 32 35
Insertion Loss (dB)
5-50 MHz: * 3.5 1.9 1.2 0.8 0.8 0.7 0.7 0.7
50-450 MHz: * 4.0 2.3 1.5 1.0 0.9 0.8 0.8 0.8
450-750 MHz: * 4.2 2.4 1.8 1.2 1.0 1.0 1.0 1.0
750-1000 MHz: * 4.5 2.5 2.0 1.4 1.2 1.0 1.0 1.0
Return Loss (In/Out) (dB)
5-10 MHz: 18 18 16 18 18 18 18 18 18
10-50 MHz: 20 20 18 20 20 20 20 20 20
50-450 MHz: 20 20 18 20 20 20 20 20 20
450-750 MHz: 18 18 18 18 18 18 18 18 18
750-1000 MHz: 16 16 16 16 16 16 16 16 16
Return Loss (Tap) (dB)
5-10 MHz: 18
10-750 MHz: 18
750-1000 MHz: 18
Isolation Tap-to-Tap (dB)
5-10 MHz: 22
10-450 MHz: 26
450-750 MHz: 25
750-1000 MHz: 22
Isolation Out-to-Tap (dB)
5-10 MHz: - 30 28 36 36 38 38 38 38
10-50 MHz: - 30 28 35 36 35 36 36 36
50-450 MHz: - 26 25 32 33 32 32 32 32
450-750 MHz: - 24 24 30 30 30 30 30 30
750-1000MHz: - 24 24 26 26 28 28 28 30
Tap Tolerance (± dB)
5-450 MHz: 1.0 1.0 1.0 1.0 1.0 1.0 1.0 1.0 1.0
450-750 MHz: 1.5 1.5 1.5 1.5 1.5 1.5 1.5 1.5 1.5
750-1000 MHz: 2.0 2.0 2.0 2.0 2.0 2.0 2.0 2.0 2.0
Ordering Information
Model Stock # Description
SRT-2a 1942 Directional Tap, 2 Output 5-1000 MHz, In-Line Style, Values: 4,8,11,14,17,20,23,26,29,32 dB
SRT-4a 1944 Directional Tap, 4 Output 5-1000 MHz, In-Line Style, Values: 8,11,14,17,20,23,26,29,32,35 dB
SRT-8a 1948 Directional Tap, 8 Output 5-1000 MHz, In-Line Style, Values: 11,14,17,20,23,26,29,32,35 dB
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