GE ApexPro TT Technical Manual page 25

Notch filter
Bandpass filter
Identify antennas
Design
Part number
frequency
2000673-002 600 MHz
2000673-003 600 MHz
2000673-004 450 MHz
2000673-005 450 MHz
2000673-006 600 MHz
2001989-351A
blocks the conduction of DC power to the receiver system and associated hardware. A
bias tee is used with each power supply.
Notch filters are frequency or TV channel specific and notch out the TV video, audio,
or digital center of the band signals. Notch filters also filter pager signals or other
strong RF signals that can be found in a telemetry environment.
The bandpass filter rejects frequencies outside its listed bandwidth and passes
frequencies inside its listed bandwidth. It is used in place of certain notch filters to
provide wide band filtering with less in-band loss than multiple notch filters.
Identify the high-power and active antennas by the part number label and the GE logo
only on the front (bottom). The passive antenna looks identical to the high-power
antenna except it has a black cap over the LED power indicator. To visually identify
the antenna type, observe the following:
The -002, -003, -004, and -005 models have an embossed GE logo.
The -006, -007, and -008 models have a blue GE logo.
The -003, -005, and -006 passive antennas have a black cap over the LED power
indicator.
For further identification, check the part number label.
Antenna type
ApexPro Antenna Hi-Pwr This high-power antenna operates within 560-614MHz and has
560-614MHz filtering for out-of-band signals. It has >15dB rejection below
470MHz.
ApexPro Antenna This passive antenna has no internal filtering or amplification,
Passive 560-614MHz therefore requires no DC voltage. Use this antenna with notch
filters, high- or low-pass filters, or a bandpass filter and an in-line
amplifier. Use only when other antennas do not meet design
requirements.
ApexPro Antenna Hi-Pwr This high-power antenna operates within 420-474MHz and has
420-474MHz filtering for out-of-band signals. It has >15dB rejection below
320MHz.
ApexPro Antenna This passive antenna has no internal filtering or amplification,
Passive 420-474MHz therefore requires no DC voltage. Use this antenna with notch
filters, high- or low-pass filters, or a bandpass filter and an in-line
amplifier. Use only when other antennas do not meet design
requirements.
ApexPro Passive This passive antenna has no internal filtering or amplification,
Antenna 560-614MHz therefore requires no DC voltage. Use this antenna with notch
filters, high- or low-pass filters, or bandpass filters and an in-line
amplifier. Use only when the other antennas do not meet design
requirements.
Description
ApexPro™
Equipment Overview
Status
Obsolete
Obsolete
Obsolete
Current
Current
2-5