Mikoyan-Gurevich MiG-21: Avionics
| Model | Radio | IFF | ADF* | RWR | Gunsight | Radar** | ATC Transponder | GCI Cmd Link | Radionav System |
|---|---|---|---|---|---|---|---|---|---|
| MiG-21 (izd. 65) | RSIU-4V Klyon | SRO-2 Khrom | ARK-5 Amur | SPO-2 Sirena-2 | ASP-5N-V3 | SRD-1M Konus* | SOD-57 Globus | Gorizont-1V | – |
| MiG-21F (izd. 72) | R-800 | SRO-2 Khrom | ARK-54N | SPO-2 Sirena-2 | ASP-5NV-UI | SRD-5MN Baza-6* | SOD-57 Globus | Gorizont-1V? | – |
| MiG-21F-13 (izd. 74) | R-802 | SRO-2 Khrom | ARK-10 | SPO-2 Sirena-2 | ASP-5ND | SRD-5ND Kvant* | SOD-57M Globus-2 | Gorizont-1V? | – |
| MiG-21PF (izd. 76) | RSIU-5V | SRZO-2 Khrom-Nikel' | ARK-54I | SPO-2 Sirena-2 | PKI | RP-9-21 (batch 1–6); RP-21 (7 on) | SOD-57M Globus-2 | ARL-S Lazur' | – |
| MiG-21PF (izd. 76A) | RSIU-5 | SRO-2 Khrom | ARK-10* | SPO-2 Sirena-2 | PKI | RP-9-21 | SOD-57M Globus-2 | ARL-S Lazur' | – |
| MiG-21FL (izd. 77) | RSIU-5G | SRO-1 | ARK-10* | SPO-2 Sirena-2 | PKI | R1L | SOD-57M Globus-2 | ? | – |
| MiG-21PFM (izd. 94) | RSIU-5V | SRZO-2M Khrom-Nikel' | ARK-10 | SPO-2 Sirena-2 | PKI | RP-21M | SOD-57M Globus-2 | ARL-S Lazur' | Iskra |
| MiG-21PFM (izd. 94A) | RSIU-5 | SRZO-2 Khrom-Nikel' | ARK-10* | SPO-2 Sirena-2 | PKI | RP-21MA | SOD-57M Globus-2 | ARL-S Lazur' | Iskra |
| MiG-21R (izd. 03/94R) | RSIU-5V | SRZO-2M Khrom-Nikel' | ARK-10 | SPO-3 Sirena-3 | PKI | RP-21M | SOD-57M Globus-2 | ARL-S Lazur' | Iskra |
| MiG-21R (izd. 94RA) | RSIU-5 | SRZO-2 Khrom-Nikel' | ARK-10 | SPO-3 Sirena-3 | PKI | RP-21MA | SOD-57M Globus-2 | ARL-S Lazur' | Iskra |
| MiG-21S/SN (izd. 95/95N) | RSIU-5V | SRZO-2M Khrom-Nikel' | ARK-10 | SPO-10 | ASP-PF-21 | RP-22 (Sapfir-22) | SOD-57M Globus-2 | ARL-S Lazur'-M | ? |
| MiG-21M (izd. 96) | RSIU-5 | SRZO-2 Khrom-Nikel' | ARK-10 | SPO-3 Sirena-3M | ASP-PFD | RP-21MA | SOD-57M Globus-2 | ARL-S Lazur' | ? |
| MiG-21SM (izd. 95M/15) | RSIU-5V | SRZO-2M Khrom-Nikel' | ARK-10 | SPO-10 | ASP-PFD | RP-22 | SOD-57M Globus-2 | ARL-S Lazur'-M | ? |
| MiG-21bis (PVO; izd. 75) | RSIU-5V | SRZO-2M Khrom-Nikel' | ARK-10 | SPO-10 | ASP-PFD-M | RP-22M | SOD-57M Globus-2 | ARL-S Lazur'-M | none? |
| MiG-21bis (VVS; izd. 75) | RSIU-5V | SRZO-2M Khrom-Nikel' | ARK-10 | SPO-10 | ASP-PFD-M | RP-22M | SOD-57M Globus-2 | none | RSBN-4N |
| MiG-21bis (izd. 75A) | RSIU-5 | SRZO-2 Khrom-Nikel' | ARK-10 | SPO-3 Sirena-3M | ASP-PFD | RP-21M | SOD-57M Globus-2 | ARL-S Lazur'-M | none? |
| MiG-21bis (izd. 75B) | RSIU-5 | SRZO-2 Khrom-Nikel' | ARK-10 | SPO-3 Sirena-3M | ASP-PFD | RP-21M | SOD-57M Globus-2 | none | RSBN-2N |
