Radio Signals
Examining radio
signals is the original idea of Analyzer2000.
Simply connect the AF-output of your receiver to the input of your soundcard
and see, what you hear. Use SSB and you will have a feeling like using an
expensive IF panorama adapter.
You can change a
lot of parameters to adapt Analyzer2000
to your target signal.
Use a FFT size of
16384 and averaging to
measure a signal with a frequency resolution of only
0.5 Hz even under very bad
receiving conditions.
Thanks to the dynamic range of 160 dB
and noise elimination tools (minhold,
average), spurs as
weak as 50 nV can be made visible.
All samples are
taken in real-time
and are stored in a sample buffer. Due to this method, no samples are getting
lost even on slow machines. This sample buffer can be written to hard disk
using the snapshot
feature. Another way is logging all samples to file. In offline mode, the
signal can be analyzed down to single sample resolution (i.e.
25µs). Searching for interesting sections in the
file (or sample buffer) is supported by a VCR-like shuttle control.
In addition to these generic analyzing capabilities,
Analyzer2000
has built-in a
multi-channel CW decoder and a
FSK/F7B demodulator
with baudrate estimation.
A hellschreiber display suppports in classifying all types of FM-based modes
like FSK, SSTV or Fax. Also PSK signals can be made visible giving information
about symbol rate or frame structures.
These signals can easily be classified by using the new
PSK demodulator and
the realtime constellation display with phosphor oscilloscope effect.
Beside analyzing radio signals,
Analyzer2000 does also support bidirectional modem communication.
The first of these modem drivers is now available :
PSK31 , a new amateur radio teletype mode.
As teletype interface, a special easy-to-use terminal program
Terminal2000 has been developed.
Click here for the
special PSK31/Terminal2000 page
General Measurements
In addition to radio signals,
Analyzer2000 is perfectly equipped for general measurements
on components or other circuits. Level riding markers with peak finding and
delta function make it easy to determine interception point or harmonic
distortion.
THD, SNR (SINAD) and VCO phase noise (dBc/Hz) can
be gathered by only one mouse click :
But Analyzer2000 is not only a high-end spectrum
analyzer (with limited bandwidth of course), it also replaces a digital
oscilloscope with several measurement and display options.
Human Voice and Music
To analyze human voices, the sonagram display can be
used. By changing the dynamic range and selecting one out of several coloring
schemes, you can see the characteristics of the voice. To compare two spoken
words for instance, open two windows, one for
each audio source. You can arrange these windows to see them side by side. To
"fingerprint" a signal, use pairs of frequency and time rulers with
delta function.
For tuning musical instruments,
Analyzer2000 is equipped with a musical note
display with extra big digits :
