Here you can find information and procedures for operating inside Zagreb FIR
TRANSITION ALTITUDE for all airports in Zagreb FIR is the same and it is 10,000 ft (3030 m).
TRANSITION LEVEL is provided by approach control and it is calculated according to the following table:
| Transition Level by QNH | |||||
|---|---|---|---|---|---|
| QNH (hPa) | 960-977 | 978-995 | 996-1013 | 1014-1031 | >1032 |
| TRANSITION LEVEL | FL 125 | FL 120 | FL 115 | FL 110 | FL 105 |
QNH for arriving traffic will be given by approach controller together with the first clearance for descent below transition level.
QNH for departing traffic will be given by tower controller usually with start up clearance, and latest with taxi clearance.
Frequencies used in Zagreb FIR
| Station name | Frequency | ICAO |
|---|---|---|
| Zagreb Radar | 135.800 | LDZO_CTR |
| Zagreb North Control | 132.125 | LDZO_N_CTR |
| Zagreb Adria Control | 135.800 | LDZO_WS_CTR |
| Zagreb Information | 135.050 | LDZO_FSS |
| Zagreb Ground | 121.850 | LDZA_GND |
| Zagreb Tower | 118.300 | LDZA_TWR |
| Zagreb Radar | 120.700 | LDZA_APP |
| Split Tower | 124.675 | LDSP_TWR |
| Split Radar | 120.875 | LDSP_APP |
| Dubrovnik Tower | 129.500 | LDDU_TWR |
| Dubrovnik Radar | 123.600 | LDDU_APP |
| Pula Tower | 132.000 | LDPL_TWR |
| Pula Radar | 124.600 | LDPL_APP |
| Rijeka Tower | 119.000 | LDRI_TWR |
| Zadar Tower | 123.700 | LDZD_TWR |
| Zadar Radar | 128.525 | LDZD_APP |
| Osijek Approach | 118.800 | LDOS_APP |
| Brač Tower | 118.025 | LDSB_TWR |
| Lošinj Tower | 120.300 | LDLO_TWR |
| GUARD | 121.500 | GUARD |
| UNICOM | 122.800 | UNICOM |
| Croatia Military | 124.800 | LDZO_M_CTR |
| Zadar Military Radar | 119.600 | LDZD_M_APP |
Squawk codes used in Zagreb FIR
| VFR | 0001-0047 |
| International IFR | 6520-6577 |
| Domestic IFR | 7020-7077 |
| Military | 0050-0070 |
| Emergency | 7700 |
| Lost communications | 7600 |
| Hijack (not allowed on IVAO) | 7500 |
Zagreb FIR Sector Manual
Download Manual
This manual is intended to be used by air traffic controllers on the IVAO network when controlling in Zagreb Flight Information Region (LDZO FIR). The manual provides information regarding operating procedures and standard practices in Croatian airspace.
Zagreb FIR Voice Communication Procedures Manual
This manual is intended to be used by air traffic controllers and pilots on the IVAO network when controlling and flying in Zagreb Flight Information Region (LDZO FIR). The manual provides information regarding voice communication procedures and standard practices in Croatian airspace.
Zagreb FIR IVAC2 FIRDEF Manual
This manual is intended to be used by IVAC2 software for LDZO FIR. The manual provides information regarding using and understanding new IVAC2 software. Manual is written in Croatian language.
Squawk generator for Zagreb FIR using IVAC1
http://squawk.scumari.nl/ldzo-sq.php
This page is written to get unique squawk codes in a control area.
Connect to the generator with your IVAO VID when logged on as ATC.
