IFR 2026Q, Operating Manual

Page: 92 / 213

ERROR MESSAGES
3-50
Source-specific errors
Where it is necessary to identify the signal source causing an error, the error message number has
1000 or 2000 added to it for the A or B source respectively. Thus error number 2500 indicates that
the B source has tripped the reverse power protection circuit.
Table 3-2 Background errors (500
−−−−
599) in priority order
- - - 591 ftl Main PROM faulty
590 ftl Main RAM faulty - - -
- - - - - -
- - - - - -
- - - - - -
500 dde RPP tripped ‡ 501 dde Fractional-N loop low ‡
502 dde Fractional-N loop high ‡ 503 dde Ext standard missing
504 dde External std frequency low 505 dde External std frequency high
506 dde VCXO loop low
‡
507 dde VCXO loop high
‡
508 dde Amplitude mod unleveled
‡
509 dde Output unleveled
‡
510 dde High power amplifier failed
‡
511 dde ALC too high
‡
512 dde ALC too low
‡
513 dde DSP not responding
‡
- - - - - -
- - - - - -
- - - 549 exe RF level uncalibrated ‡
550 exe RF level limited by AM ‡ 551 exe AM2 limited by AM1 ‡
552 exe FM2 limited by FM1 ‡ 553 exe Φ M2 limited by Φ M1 ‡
554 - - 555 - -
556 - - 557 exe Carrier limited by coupling ‡
558 exe Offset limited by harmonic 559 exe Offset limited by sub-harm
560 exe Harmonic limited by offset 561 exe Sub-harm limited by offset
(‡ =
Source-specific)