
Old Bridge, NJ 08857-1000 USA
(800) 523-6049 • (732) 679-4000 • FAX: (732) 679-4353
©2005 Blonder Tongue Laboratories, Inc. All rights reserved. Specifications are subject to change without notice. Trademarks are the property of their respective owner.

WARNING: TO PREVENT FIRE OR SHOCK HAZARD, DO NOT EXPOSE THIS UNIT TO RAIN OR MOISTURE
This reminder is provided to call the CATV System Installer’s attention to Article 820-40 of the NEC that
!
CAUTION
RISK OF ELECTRIC SHOCK
DO NOT OPEN
The lightning flash with arrow-
The exclamation point within an
TO REDUCE THE RISK OF ELECTRICAL SHOCK, DO NOT REMOVE COVER FROM THIS UNIT.
An FM bandstop filter in the VHF input circuit can be switched to the FM TRAP position to prevent overload in the

at -46 dB Crossmodulation for 3 Chan. 4 Chan. 3 Chan.
Grade 1 (Picture Excellent): (500 uV) (530 uV) (400 uV)
UHF Gain: UHF/VHF Separate/Combined Switch
VHF - High Band Gain: HB/LB (VHF) Separate/Combined Switch
VHF - Low Band Gain: FM Band Trap Switch

* DO NOT terminate unused inputs when using the combined modes
-10
-5
+0
+10
+5
+15
+20
+25
+30
0 5 10 15 20
18
FULL GAIN
FULL CUTBACK
DYNAMIC RANGE
WEAKEST
SIGNAL
STRONGEST
SIGNAL
VHF 7 Chs @54 dBmV
VHF 3 Chs @51.5 dBmV
INPUT
LEVEL
(dBmV)
DEGREE OF CUTBACK
RECOMMENDED INPUT LEVELS
VHF
UHF

a. Connect the unit in a test set-up for response and obtain a response trace on the oscilloscope.
b. Due to the high gain of the ZTA-45, reduce the input signal and insure that the unit is not in compression.
c. Set controls to full gain. Terminate the VHF combiner and splitter with 75 ohms.
d. Adjust collector matching coils L205, 208, 213, 215, 217 and 219 for maximum gain at the higher
e. Adjust shunt coils L203, 204, 224, 225 for maximum gain at 470 MHz.
f. Adjust shunt coils, L214, 216, 218 and 220 for best flatness.
a. For the Low Band adjust coils L11, L12 and L13, for response and input return loss throughout the 0-18 dB
b. For the High Band adjust coils L1, L2 and L3, for response and input return loss throughout the 0-18 dB gain
c. For the output match adjust coils L20, L19, L22, L25, L26 and L27; also L226 and L301 on the UHF
d. Set the FM TRAP switch “in”. Adjust coils L8, L9 and L10 for response.
VHF/UHF Sweep Generator Variable Attenuators (2) VHF/UHF Marker Generator
DC Oscilloscope RF Detector DC Voltmeter

A Return Material Authorization (RMA) Number is required on all products returned to

Limited Warranty
Blonder Tongue Laboratories, Inc. (BT) will at its sole option, either repair or replace (with a new or factory reconditioned product, as BT may
determine) any product manufactured by BT which proves to be defective in materials or workmanship or fails to meet the specifications which
are in effect on the date of shipment or such other specifications as may have been expressly agreed upon in writing (i) for a period of one (1)
year from the date of original purchase (or such shorter period of time as may be set forth in the license agreement specific to the particular
software being licensed), with respect to iCentral™ (hardware and software) and all other software products (including embedded software)
licensed from BT, (ii)) for a period of one (1) year from the date of original purchase, with respect to all MegaPort, IPTV products and fiber
optics receivers, transmitters, couplers and integrated receivers/distribution amplifiers (including TRAILBLAZER™, RETRO-LINX™ and TWIN
STAR™ products) as well as for VideoCipher® & DigiCipher® satellite receivers, and (iii) for a period of three (3) years from the date of original
purchase, with respect to all other BT products. Notwithstanding the foregoing, in some cases, the warranty on certain proprietary sub-assembly
modules manufactured by third party vendors and contained in BT products and on certain private-label products manufactured by third parties
for resale by BT are of shorter duration or otherwise more limited than the standard BT limited warranty. In such cases, BT’s warranty with
respect to such third party proprietary sub-assembly modules and private-label products will be limited to the duration and other terms of such
third party vendor’s warranty. In addition, certain products, that are not manufactured but are resold by BT, carry the original OEM warranty for
that product. The limited warranty set forth in this paragraph does not apply to any product sold by BT, which at the time of sale constituted a
Closeout Product.
BT will at its sole option, either repair or replace (with a new or factory reconditioned product, as BT may determine) any product sold by
BT which at the time of sale constituted a refurbished or closeout items (“Refurbished Product” and “Closeout Product”), which proves to be
defective in materials or workmanship or fails to meet the specifications which are in effect on the date of shipment or such other specifications
as may have been expressly agreed upon in writing, for a period of ninety (90) days from the date of original purchase. Notwithstanding the
foregoing, in some cases, the warranty on third party software and on certain proprietary sub-assembly modules manufactured by third party
vendors and contained in BT products and on certain private-label products manufactured by third parties for resale by BT are of shorter
duration or otherwise more limited than the BT limited warranty for Closeout Products. In such cases, BT’s warranty for Closeout Products
constituting such third party software, third party proprietary sub-assembly modules and private-label products will be limited to the duration
and other terms of such third party vendor’s warranty. In addition, notwithstanding the foregoing, (i) certain Closeout Products that are not
manufactured (but are resold) by BT, carry the original OEM warranty for such products, which may be longer or shorter than the BT limited
warranty for Refurbished or Closeout Products. All sales of Refurbished or Closeout Products are final.
To obtain service under this warranty, the defective product, together with a copy of the sales receipt or other satisfactory proof of purchase
and a brief description of the defect, must be shipped freight prepaid to: Blonder Tongue Laboratories, Inc., One Jake Brown Road, Old Bridge,
New Jersey 08857.
This warranty does not cover damage resulting from (i) use or installation other than in strict accordance with manufacturer’s written instructions,
(ii) disassembly or repair by someone other than the manufacturer or a manufacturer-authorized repair center, (iii) misuse, misapplication or
abuse, (iv) alteration, (v) lack of reasonable care or (vi) wind, ice, snow, rain, lightning, or any other weather conditions or acts of God.
OTHER THAN THE WARRANTIES SET FORTH ABOVE, BT MAKES NO OTHER WARRANTIES OR REPRESENTATIONS OF
ANY KIND, EXPRESS OR IMPLIED, AS TO THE CONDITION, DESCRIPTION, FITNESS FOR A PARTICULAR PURPOSE, MER
CHANTABILITY OR AS TO ANY OTHER MATTER, AND SUCH WARRANTIES SUPERSEDE ANY ORAL OR WRITTEN WAR
RANTIES OR REPRESENTATIONS MADE OR IMPLIED BY BT OR BY ANY OF BT’S EMPLOYEES OR REPRESENTATIVES, OR
IN ANY OF BT’S BROCHURES, MANUALS, CATALOGS, LITERATURE OR OTHER MATERIALS. IN ALL CASES, BUYER’S SOLE
AND EXCLUSIVE REMEDY AND BT’S SOLE OBLIGATION FOR ANY BREACH OF THE WARRANTIES CONTAINED HEREIN
SHALL BE LIMITED TO THE REPAIR OR REPLACEMENT OF THE DEFECTIVE PRODUCT F.O.B. SHIPPING POINT, AS BT IN
ITS SOLE DISCRETION SHALL DETERMINE. BT SHALL IN NO EVENT AND UNDER NO CIRCUMSTANCES BE LIABLE OR
RESPONSIBLE FOR ANY CONSEQUENTIAL, INDIRECT, INCIDENTAL, PUNITIVE, DIRECT OR SPECIAL DAMAGES BASED
UPON BREACH OF WARRANTY, BREACH OF CONTRACT, NEGLIGENCE, STRICT TORT LIABILITY OR OTHERWISE OR ANY
OTHER LEGAL THEORY ARISING DIRECTLY OR INDIRECTLY FROM THE SALE, USE, INSTALLATION OR FAILURE OF ANY
PRODUCT ACQUIRED BY BUYER FROM BT.
All claims for shortages, defects and non-conforming goods must be made by Buyer in writing within five (5) days of receipt of merchandise,
which writing shall state with particularity all material facts, concerning the claim then known to Buyer. Upon any such complaint, Buyer shall
hold the goods complained of intact and duly protected, for a period of up to sixty (60) days. Upon the request of BT, Buyer shall ship such
allegedly nonconforming or defective goods, freight prepaid to BT for examination by BT’s inspection department and verification of the defect.
BT, at its option, will either repair, replace or issue a credit for products determined to be defective. BT’s liability and responsibility for defective
products is specifically limited to the defective item or to credit towards the original billing. All such replacements by BT shall be made free
of charge f.o.b. the delivery point called for in the original order. Products for which replacement has been made under the provisions of this
clause shall become the property of BT. Under no circumstances are products to be returned to BT without BT’s prior written authorization. BT
reserves the right to scrap any unauthorized returns on a no-credit basis. Any actions for breach of this contract must be commenced by Buyer
within thirteen (13) months after the cause of action has accrued. A copy of BT’s standard terms and conditions of sale, including the limited
warranty, is available from BT upon request. Copies of the limited warranties covering third party proprietary sub-assembly modules and private
label products manufactured by third parties are also available from BT on request. VideoCipher® & DigiCipher® are registered trademarks of
Motorola Corp.
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One Jake Brown Road
Old Bridge, NJ 08857-1000 USA
(800) 523-6049 • (732) 679-4000 • FAX: (732) 679-4353
www.blondertongue.com