Functional Block Diagram - Blonder Tongue Laboratories Inc.

Broadband Specification Guide
Equipment Specifications Library
CMA-Uc
UHF broadband preamplifiers shall be two piece construction to allow optimum placement of the amplifier in relation to the antenna. The amplifier shall be housed
in a rugged, mast mount, die-cast housing and have a -20 dB backmatched test port. The UHF broadband preamplifiers shall be equal to Blonder Tongue CMA-Uc
with power supply PS-1526 and shall meet or exceed the following specifications:
a) Frequency Range: 470-806 MHz
b) Gain: 20 dB
c) Input Capability: -9 to +26 dBmV per channel
d) Noise Figure: 3 dB Maximum
DFCS-24
The distribution frame cable splitter shall have a 19 inch, 1RU rack mountable chassis and provide twenty four (24) output ports for drop cable connections. The
splitter shall have a -20 dB test point for testing the input signal without interruption of service. The splitter shall be equal to Blonder Tongue DFCS-24, and shall meet
or exceed the following specifications:
a) Frequency Range: 5-1000 MHz
b) Impedance: 75 Ω
c) Input Test Port: -20 dB
d) Return Loss:
(1) Input: 16 dB Minimum
(2) Output: 18 dB Minimum
DFCS-32
The distribution frame cable splitter shall have a 19 inch, 1RU rack mountable chassis and provide thirty two (32) output ports for drop cable connections. The splitter
shall have a -20 dB test point for testing the input signal without interruption of service. The splitter shall be equal to Blonder Tongue DFCS-32, and shall meet or
exceed the following specifications:
a) Frequency Range: 5-1000 MHz
b) Impedance: 75 Ω
c) Input Test Port: -20 dB
d) Return Loss:
(1) Input: 16 dB Minimum
(2) Output: 18 dB Minimum
DHDP-V
e) Isolation
(1) Adjacent Ports: 25 dB
(2) Non-Adjacent Ports: >40 dB
f) Insertion Loss: 20 dB Maximum
e) Isolation
(1) Adjacent Ports: 25 dB
(2) Non-Adjacent Ports: >40 dB
f) Insertion Loss: 20 dB Maximum
The HDTV off-air processor shall be a two-unit system consisting of a Downconverter unit which acts as the input section and an Upconverter unit which acts as the
output section. Both units are housed in a modular die-cast chassis requiring two positions or slots in a compatible modular rack chassis.
The Downconverter unit shall accept any 8VSB signal from 54-860 MHz. Channel entry shall be done by a 2 digit front panel BCD switch. (i.e.: - VHF 2-13, UHF 14-69
& unused spectrum 806-860 MHz). The Downconverter shall output an IF signal which is then fed to the Upconverter unit.
The Upconverter unit shall take the IF signal and process it to any channel from 54-860 MHz. Channel entry shall be the same as the downconverter (i.e.: - CATV, STD,
IRC & HRC as well as Broadcast VHF & UHF). The HDTV channel processor shall be equal to Blonder Tongue DHDP-V and shall meet or exceed the following specifications:
a) Input Frequency Range:
(8VSB - downconverter)
(1) VHF 2-13: 54-216
(2) UHF 14-69: 470-806
(3) UHF Extended: 806-860
b) Operating Input Range:
-10 dbmV to +20 dBmV
c) Input Level Range:
(1) (AGC Controlled) -20 dBmV to +25 dBmV
(2) Adj. Ch. Rejection:
(Ref. to +30 dBmV IF output)
(3) Adj. Aural and Below: >65 dB
(4) Adj. Visual and Above: >65 dB
d) Output Frequency: 44.00 MHz IF
e) Phase Noise: @ 10 KHz Offset -85 dBc/Hz
f) Output Frequency Range:
54-860 MHz (upconverter)
g) Channels:
(1) CATV- STD, IRC, HRC
(2) Broadcast; VHF, UHF
h) Output Frequency Tolerance: ±5 KHz
i) Output Level:
(1) Analog: +45 dBmV
(IF Input +35 dBmV)
(2) Digital: +40 dBmV
(IF Input +30dBmV)
j) Output Level Adj. Range: 10 dB
k) Spurious Output 50-1000 MHz: -60 dB
l) C/N Ratio IN Channel:
(1) Digital: -60 dB
(6 MHz BW +40 dBmV Output)
(2) Analog: -65 dB
(4 MHz BW +45 dBmV Output)
m) Broadband Noise: -76 dBc
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