Commands Chapter 5
EuroPak-15a Receiver User Manual Rev 5 45
5.3 Command Reference
All syntax strings and command examples given in this section are in the Abbreviated ASCII format, unless
otherwise indicated. The tables provided show the fields necessary for all formats unless otherwise noted.
As mentioned in Section 4.1 on Page 31, all command strings must be followed by <Enter>.

5.3.1 AGCMODE Control Automatic Gain Control

1. This command can fundamentally change the way that the receiver operates. Do not alter the default
settings unless you are confident that you understand the consequences.
2. When the AGC mode is disabled, the Receiver Status word in the message header, discussed in
Table46, Receiver Status on Page 93, reports the AGC as GOOD as long as the control metric used in
the feedback loop is within 7.5% of the set point.
This command controls the EuroPak-15a’s Automatic Gain Control (AGC) mechanism, which has two primary
functions:
• To perform the analog-to-digital conversions in the receiver’s front end.
• Mitigate jamming.
Table 15: Frequency Values for AGCMODE Command
Table 16: AGC Mode Values
ASCII Description
L1 L1 GPS and Galileo channels a
a. Changing GPS L1 affects Galileo L1 and
changing GPS L5 affects Galileo E5a
L5 L5 GPS and E5a Galileo channels a
ASCII Description
AUTO Specifies that the default pulse width
and load values should be used.
MANUAL Specifies that the values specified in the
pulsewidth and loadvalue fields should
be used.