6
4. Select Preset
– press the Preset key.
This sets Quick Menu mode, Span maximum, Attenuation on, Highest RBW, Sweep mode
normal, Marker M1 on at the centre of the sweep.
5. Observe the Sweep
- the sweep time will be slow because of the wide span.
6.
Adjust the Attenuator
– If the peak signal is below the –20dBm graticule line, press the Attenuator
On/Off key to toggle the attenuator to Off thus increasing the sensitivity.
7. Move the Marker
– use the 5-way navigator to move the marker to the area of interest and position it
at the centre of the signals to be observed.
8. Centre the Sweep
-.press the Set C=M1 key to re-centre the sweep around the new marker position
(Note: the span will be reduced to the maximum that can be achieved with the new centre
frequency)
9. Zoom the Span
– Press the Zoom-In key successively to create a narrower span that shows more
detail of the signals of interest.
The above procedure should be sufficient to get started. Thereafter adjustments can be made to sweep
parameters, attenuator, resolution bandwidth, etc. as may be appropriate to the signals being observed.
Basic on-screen help information for every menu is available by pressing the Help hard key. Some
general information regarding the capabilities of the unit is available from the Info key on the Exit menu
.
4.2. Detailed Operating Guide
To fully understand the operation of the PSA1301/2701T and PSAnalyzer, it is necessary to read this
manual.
From an operating point of view, the key sections are “Using the PSAnalyzer Application” section18,
“The PSAnalyzer Menu System” section 19, and “PSAnalyzer Operating Techniques” section 20.
5.
Product Description and Capabilities
Brief Summary
The PSA-T series (PSA1301T and PSA2701T) are fully portable spectrum analyzers incorporating a
handheld computer (a Palm T
|
X). They are sufficiently small and lightweight to be operated as a
handheld instrument and has a typical battery life of four hours from each charge. Alternatively they can
be used as bench instruments using the supplied mains adaptor/charger. They can be set horizontally or
vertically, or at an angle of about 25 degrees using the built-in tilt stand.
The spectrum analyzer has a frequency range of 0.15 MHz to 1300 MHz (PSA1301T) or 1MHz to
2700MHz (PSA2701T). The span can be set anywhere between 0.320 MHz and 1299.850 MHz
(PSA1301T) or 2699.000 MHz (PSA2701T) with a resolution of 1kHz. Start, stop or centre frequencies
can be set to the same resolution. The resolution bandwidth is selectable as 280 kHz or 15 kHz
(PSA1301T) or 1 MHz, 280 kHz or 15 kHz (PSA2701T).