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3000 Frequency
The DisplayMax Jr 3000 is a rugged, easy to use signal
level meter capable of measuring analog and digital
channels at any point in the CATV system from the
headend to the subscriber drop. In addition to signal
level, the Jr 3000 detects both leakage and ingress at
the subscriber drop and home wiring. Finding and fi xing
leakage and ingress is essential to maintaining VoIP
and High-Speed Data services. The fi rst step is to test
for ingress coming from the customer’s premise. If ingress
is detected, use the leakage mode to quickly fi nd
the source. Routine testing for leakage and ingress, in
addition to verifying analog and digital channel level, will
insure the most demanding services run smoothly.
Highlights:
- VoIP & HSD Qualifi er
Insure that ingress will not interfere with VoIP and
High-Speed Data services
- Leakage & Ingress Detection
Find and fi x leakage and ingress problems at the
subsciber’s drop and home wiring
- Analog & Digital Power
Verify proper levels of analog and digital channels
from the headend to the TV.
- Auto-Calibration
Eliminate the cost and downtime of annual calibration
Specification
- SIGNAL LEVEL METER
Frequency Range: 5 to 872 MHz.
Tuning Resolution: 125 KHz.
IF Bandwidth: 280 KHz.
Analog Power Range: -30 to +60 dBmV.
Digital Power Range: -23 to +67 dBmV.
Level Resolution: 0.1 dB
- Typical Accuracy: +/- 0.5 dB
Max Additional Error at 70° F: +/- 0.5 dB
Typical Accuracy from 0 to 120° F: +/- 1.0 dB
Max Additional Error from 0 to 120° F: +/- 1.0 dB
Digital Error: additional +/- 0.5 dB dB
- LEAKAGE DETECTOR
Frequency Range: 110 to 140 MHz. (default 133.250 MHz.)
- Sensitivity: 2 uV/m, with duck antenna 3ft from leak
Tuning Resolution: 125 KHz.
IF Bandwidth: 280 KHz.
Detector Type: Peak
Video Filter: Responds only to video signals (rejects non-cable signals)
Audio: Outputs tone; frequency varies with level.
Accuracy: Same as analog channels in signal level meter mode
- INGRESS DETECTOR
Frequency Range: 5 to 872 MHz. (default 5 to 40 MHz.)
- Return Sensitivity: -40 dBmV. (5 to 40 MHz.)
Forward Sensitivity: -30 dBmV. (40 to 872 MHz)
Tuning Resolution: 250 KHz.
IF Bandwidth: 280 KHz.
Detector Type: Peak
Accuracy: Same as digital channels in signal level meter mode
- GENERAL
Battery life: 4 hours
Fast Charge: 2 hours 80%, 4 hours 100%
Audio: Water sealed speaker with volume control
Weight and Dimensions: 2.2 lbs, L 7.5” x W 3.5” x D 2.2”
Supplied Accessories: Nylon case (CASE006), 110V wall charger (T70),
duck antenna (ANT01), Ni-MH battery (BAT08), manual
Optional Accessories: Car charger (CH04), 220V wall charger, (T70E),
dipole antenna (ANT02), monopole antenna (ANT03)
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