Jensen Transformers Iso-Max VRD-1FF - Single-Channel CATV Ground Isolator (F Connectors) - Manual (Page 2)

Jensen...The Worlds Finest Audio Transformers
Jensen Transformers Inc., 9304 Deering Ave. Chatsworth, CA 91311
P: (818) 374-5857 F: (818) 374-5856 [email protected]
jensen-transformers.com
CATV
Residential
“Drop”
SHIELD
GROUND*
ISO-MAX
VRD-1FF
VRD-1FF
PARAMETER CONDITIONS MINIMUM TYPICAL MAXIMUM
Insertion loss
5 MHz, HP 3577A Analyzer -0.19 dB
50 MHz, HP 3577A Analyzer -0.01 dB -0.1dB
Bandwidth
LF -3 dB re 100 MHz, HP 3577A Analyzer 1 MHz 1.2 MHz
HF -3 dB re 100 MHz, HP 8711A Analyzer 1000 MHz > 1300 MHz
VSWR, input or output port 50 MHz to 866 MHz, HP 8711A Analyzer
1.08
(see graph)
1.2
Input to output voltage 200 V DC
Externally Radiated Field at 3 Meters
Ref. level = 1.414mVrms, Frequency = 50MHz 1.1uV/meter
Ref. level = 1.414mVrms, Frequency = 500MHz 4.8uV/meter
Ref. level = 1.414mVrms, Frequency = 1GHz 6.3uV/meter
Margin below FCC part 76 Limits
Ref. level = 1.414mVrms, Frequency = 50MHz 25.6dB
Ref. level = 1.414mVrms, Frequency = 500MHz 12.5dB
Ref. level = 1.414mVrms, Frequency = 1GHz 10.1dB
Cable length
input
output
Isolation Impedance output shield to input shield, 60 Hz 1 MΩ 1.3 MΩ
All minimum and maximum specifica -
tions are guaranteed. Unless noted
otherwise, all specifications apply at
25 ° C. Specifications subject to change
without notice. All information herein
is believed to be accurate and reliable,
however no responsibility is assumed
for its use nor for any infringements of
patents which may result from its use.
No license is granted by implication or
otherwise under any patent or patent
rights of Jensen Transformers, Inc.
*IMPORTANT NOTE: THIS PRODUCT
IS NOT INTENDED FOR USE IN
CIRCUMSTANCES WHERE THE DC
OR PEAK AC VOLTAGE BETWEEN
INPUT AND OUTPUT CONNECTIONS
EXCEEDS 34 VOLTS OR WHERE ITS
FAILURE COULD CAUSE INJURY OR
DEATH.
Source Z = load Z = 75 Ω, signal level = -20 dBm
* For maximum protection from lightning strikes, a good low impedance
ground is necessary. Most local codes require this at building entry.
AMPLITUDE (dB) vs FREQUENCY (MHz)
REFLECTION COEFFICIENT (dB) and VSWR vs FREQUENCY (MHz)
VSWR
REFLECTION COEFFICIENT
1.0
0
0.0
-10 1.924
-20 1.222
-30 1.065
-40 1.020
-50 1.006
-60
-1.0
-2.0
-3.0
-4.0
-5.0
-6.0
0
0
100
100
200
200
300
300
400
400
500
500
600
600
700
700
800
800
900
900
1000
1000
1100
1100
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1200
1300
1300