Spectrum DSP M2 User Manual

Spectrum DSP M2 User Manual V1.1
Waterfall display that graphically depicts both the bandwidth and frequency span of the
currently selected filter and mode.
• Voltmeter Cal. - This setting is used to calibrate the on-screen voltmeter. A setting of
100 (default) represents unity (1.00) with each step representing approximately 0.1%.
Receiver related items:
• Max Volume - This sets the maximum permitted setting of the AFG (“volume control”),
setting the maximum “safe” level. This is most useful to those who exclusively use
headphones.
• Max RX Gain (0=Max) - This sets the “maximum” gain of the receiver/AGC system.
The default of “3” is a compromise of stability in preventing feedback at normal volume
levels with no antenna connected. This setting can be used to prevent the receiver's
gain from getting too high under no-signal conditions, particularly if all of the various
modifications have not yet been done to prevent feedback. It is recommended that
this be set to the default of 3 when Frequency Translate is active.
Beep related items:
• Key Beep – When set to ON a short beep will be heard with key presses. For “short”
(press-and-release) button-pushes, the beep will sound at the instant that the button is
released. For “long” (press-and-hold) button-pushes, the beep will sound as soon as
the time has elapsed for the press to be considered valid, at which point the button
may be released. (This does not disable the “CW Sidetone reference” beep produced
by the mode button – see below.)
• Beep Frequency – This sets the frequency of the key beep, in 25 Hz steps.
• Beep Volume – This adjusts the volume (loudness) of both the key beep and the
beep that is heard when the RIT box is pressed and held (in CW/LSB/USB modes) to
generate a CW “reference” tone of the same frequency as the CW transmit-receive
offset/CW sidetone.
CAT related items:
• CAT mode - This enables the CAT mode which is based on a USB driver that allows
remote control of the transceiver. This setting is NOT saved in EEPROM. The CAT
mode is in development and has limited capabilities.
• NOTE: If you have the USB programming cable connected and enter CAT
mode, it is likely that the transceiver will crash! If you have programmed the
transceiver you must first disconnect the transceiver for 10-15 seconds before
reconnecting it and enabling CAT mode.
• EEPROM save may not work reliably if CAT mode has been enabled/disabled
since the last power-up.
Frequency related items:
• Freq. Limit Disable – This enables the built-in frequency (tuning) limits of 1.8-32 MHz,
allowing one to tune the dial/display to practically anything!
◦ NOTICE: This should be considered to be an experimental feature and treated
P 40

Spectrum DSP M2 Specifications

General

Brand	Spectrum
Model	DSP M2
Category	Test Equipment
Language	English