Functional Block Diagram - Blonder Tongue Laboratories Inc.

Broadband Specification Guide
Equipment Specifications Library
SXRS-4
The indoor, four-way splitter shall be constructed in a die-cast housing with a soldered back plate to ensure high RFI shielding. The splitter should have an
in-line connector orientation, and the connectors on the unit shall be type F. The RFI shielding shall be at least 120 dB to prevent signal ingress or egress.
The indoor, four-way splitter shall be equal to Blonder Tongue SXRS-4 and shall meet or exceed the following specifications:
a) Frequency Range: 5 to 1000 MHz
b) Isolation: 25 dB Minimum
c) Return Loss: 18 dB Minimum
d) Insertion Loss: 8 dB Maximum
e) RFI Shielding: 120 dB Minimum
SXRS-8
The indoor, eight-way splitter shall be constructed in a die-cast housing with a soldered back plate to ensure high RFI shielding. The splitter should have an ‘L-style’
connector orientation, and the connectors on the unit shall be type F. The RFI shielding shall be at least 120 dB to prevent signal ingress or egress. The indoor, eightway
splitter shall be equal to Blonder Tongue SXRS-8 and shall meet or exceed the following specifications:
a) Frequency Range: 5 to 1000 MHz
b) Isolation: 22 dB Minimum
c) Return Loss: 15 dB Minimum
d) Insertion Loss: 12 dB Maximum
e) RFI Shielding: 120 dB Minimum
TF-GF-FT
The wall plate shall be designed to fit all standard single-gang electrical boxes. It shall have a “G/F” style feed thru connector mounted in the center of a steel cover
plate. The cover plate shall be painted a textured ivory. The wall plate shall have high RFI shielding characteristics for CATV applications. The wall plate shall be equal
to Blonder Tongue TF-GF-FT.
TVCB-PC
The TV channel blocker shall provide 40 channel blocking capability from channel 2 to 86 (54-600 MHz) with a passband up to 860 MHz. The blocker shall have push
button controls and an LED display for setting the channels to be blocked. The blocker’s enclosure shall provide tamper protection on the RF connections and have
provisions for locking to prevent unauthorized access. The channel blocker shall be equal to Blonder Tongue TVCB-PC and shall meet or exceed the following specifications.
a) Bandwidth: 54 to 860 MHz
b) Nominal Gain: 1.5 dB
c) Flatness: ±1.5 dB
d) Return Loss: 16 dB
e) Output Level (when input is 9 dBmV @54 MHz;
15 dBmV @ 600 MHz):
(1) 54 MHz: 10 dBmV
(2) 600 MHz: 16 dBmV
(3) 750 MHz: 17 dBmV
(4) 860 MHz: 18 dBmV
f) Distortions (@ 77 Channel Loading):
(1) CTB: -60 dBc
(2) CSO: -60 dBc
(3) Spurious: -60 dBc
(4) C/N: 59 dB
V-1GF-FT
g) Return Path Bandwidth: 5 to 40 MHz
h) Return Path Gain: - 2 dB
i) Number of Jamming
Oscillators: 8 (54 - 600 MHz )
j) RF Leakage: Complies with FCC Part 76, Sub part K
k) Power Requirements Voltage: 37-95 VAC
l) Current Consumption @ 60 VAC IN: 200 mA
m) Operating Temperature
Range: -40° to +60° C
n) Relative Humidity: 5-100 %
o) Housing - Dimensions:
9.5 x 4.0 x 10.0 in., (L x H x W)
p) Connectors: “F” Type, Female
The wall plate shall be designed to fit all standard electrical boxes. It shall have a “G/F” feed thru connector mounted on a steel back plate for mechanical
strength. The wall plate shall have a duplex style plastic ivory filler plate and requires a standard duplex cover plate to finish it off. The wall plate shall have
high RFI shielding characteristics for CATV applications. The wall plate shall be equal to Blonder Tongue V-1GF-FT.
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