I believe the ARK-5 Homing Switch positions should be identical in MiG-15 and MiG-19:
Left/Rearward position: ДАЛЬН. (FAR)
Right/Forward position: БЛИЖН. (NEAR)
If true, this would currently be modelled correctly in DCS: MiG-19P and incorrectly in DCS: MiG-15bis.
If anyone has additional reference material supporting my claim, let me know and I will report this issue to the devs.