AN/APG – 68 (V5) Operations Guide

OG-APG68(V5) 03/06/2001
Jamming
If a contact is currently using Electronic Counter Measures
(ECM) to prevent you locating and locking on to it, this will
show up on the radar as two small chevrons, the chevrons will
not however always show the correct range to a target
because they are based on jamming power, but they will show
the correct bearing, if you detect an aircraft that is jamming, you will not be
able to lock it up until you are close enough to burn through the jamming, at
which point you can proceed as normal, beware though that the lock that you
have on an aircraft that is jamming is not as strong as a normal lock, so any
heavy manoeuvring by you or the target is likely to break the lock.
Weapon Specific Information
When you have an air-to-air weapon specific information will be over laid on
the HUD and on the Radar Screen this information is covered in the
respective operations guides (OG-AIM9, OG-AIM120 and OG-F16BACSYS).
The ‘Combined Radar Mode’
The radar groups all of the non ACM radar modes under a group designated
CRM (Combined Radar Modes). This is simply a nomenclature for the group.
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