TTI PSA1302, Инструкция по эксплуатации, Страница: 6 / 61

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1.3 Product Description and Capabilities
The PSA2702 and PSA1302 are fully portable RF spectrum analyzers that incorporate a high
resolution colour TFT touch screen. They are sufficiently small and lightweight to be operated
as true handheld instruments and have a battery life of more than eight hours from each
charge.
As bench instruments they can be powered by the supplied ac-line adaptor/charger. They can
be set horizontally or vertically, or at an angle of about 40 degrees using the built-in tilt stand.
For field use, the stand can be moved to the top of the instrument to form a screen protector
and sun shield.
The frequency range is 1MHz to 2700MHz (PSA2702) or 1MHz to 1300MHz (PSA1302). The
span can be set between 0.270 MHz and 2699.000 MHz or 1299.000 MHz respectively with a
setting resolution of 1kHz. Start, stop or centre frequencies can be set to the same resolution.
The resolution bandwidth (RBW) is selectable as 1MHz, 280kHz or 15kHz.
The on-screen amplitude range is 85 dB with a reference level of -20dBm or 0dBm. Amplitudes
can alternatively be displayed in dBµV. Vertical magnification down to 1dB/div can be selected.
Average noise floor is better than -95dBm at -20dBm reference level and 15 kHz RBW (video
filter on).
Sweeps can be repeating or single shot, and the trace can be normal (over-write), peak hold or
average (2 to 48 sweeps). A zero span mode is available with AM or FM audio demodulation
via a built-in speaker.
Twin vertical marker lines are available giving a readout of frequency and amplitude together
with difference values. Markers can be manually positioned or automatically peak finding or
tracking.
A reference trace and a view trace can be displayed in addition to the live trace. Up to 999
traces can be stored to permanent memory for recall to the screen or for data export. Similar
number of instrument set-ups and complete screen bitmaps can also be stored. All files can be
given user defined names.
USB interfaces are provided for direct file transfer to a PC and for connection of a USB Flash
drive.
Extensive convenience features for repetitive operation include auto-set, frequency presets,
and storage of the instrument state together with the trace file for simultaneous or independent
recall.
Pressing the Status/Help hard key brings up a full status screen and access to help screens
relevant to the current menu position.
An optional upgrade package (retro installable) provides additional features including data
logging, sweep triggering, limit patterns, and compensation tables - see section 6.
More details of the product capabilities are given in the Specifications - section 12.
1.4 Initial Use - Charging the Battery | Switching On
As supplied, the internal battery is likely to be partly or fully discharged. At first use, the
instrument should therefore be plugged into the charger until the lamp next to the charge socket
stops flashing, which could take up to three hours - see section 3.1.1.
The instrument is turned on or off by pressing the small round key marked Power for about one
second. When turning on, the screen backlight will flash briefly to indicate that the key press
has been recognised, there is then a short delay prior to operation starting.