ECM

ECM: Electronic Counter Measures (Jammer)

3 5 7 Effective

ALQ-131

ALQ-184 Short X X X 20-25nm

ALQ-184 Long

Tο ALQ-184 Long δεν έχει διαφορά από το ALQ-184 Short αλλά έχει μεγαλύτερο drug. Για αυτό επιλέγεται το ALQ-184 Short.

JMR On

CMDS Mode

XMIT 1/2 Semi/Auto

XMIT 3 Manual

Σε Manual το Jammer ενεργοποιείται και απενεργοποιείται με CMS Aft/Right. Σε αυτή την περίπτωση το jamming είναι συνεχες και δε λειτουργεί το FCR.  

Power OPR (/STBY/OFF)

Transmit Mode:

XMIT 1 SPJ Control Jam when Locked Prioritize FCR A-A

. 2 SPJ Post Lock Jam when Locked Prioritize Jammer (FCR Off) A-G

. 3 Noise Barrage Jam Continuous

Transmitting Modules:

. 1 On

. 2 On

. 3 On

. 4 On

. 5 On

. 6 On

. FRM Body Jamming with Wingman

. SPL

CMS Switch

CMS Aft Standby > Auto

CMS Right Auto > Standby

Music On +/- 40 miles 

Music Off by 25 miles

Jamming

• Chevrons

• No Range Info (Top of FCR Screen)

• Brake Lock: Disapper from FCR

Let me outline a simple scenario. I don't always do it this way as there are some neat tricks and games you can play, especially if you have a human wingman, but lets assume a standrad sort of engagement. In most cases, I'll be jammer off until I reach about 35/40 miles. Once I'm at this range, I can be pretty sure that the bandit knows I'm there. He'll be seeing my paint on his RWR and he'll also be able to see me on his radar so I'm not too worried at this stage about reavealing that I'm there. At this point I'll put my jammer on and leave it on (for now). What I'm trying to do now is deny him the ability to lock or bug me with his radar and deny him an early missile shot until I can close the range a bit to either get a bug/lock on him or get a higher Pk shot. If he allows me to bug him at 30 miles, I migh pop off an early slammer anyway, just to see if I can force a response from him. The Pk might be low but he may make a mistake that I can exploit when he sees theres a slammer inbound.

Once I get close to the range I know that his radar will be able to burn through my jamming, I'll turn jammer off and leave it off. What I'm doing now is to prevent him from being able to fire a slammer or AA12 at me that will immediately go HOJ. If he gets a HOJ shot, he can turn and run away. I might not even get a shot at him, while I'm forced to deal with his missile. I'd rather do that to him than have it done to me! HOJ is modelled in the sim. One thing I've noticed is that if you leave jammer on a bit too late and get fired at HOJ, turning your jammer off at this point seem to have little effect on the inbound missile. I'm not sure this is true to life, but in the sim, a slammer or AA12 fired HOJ has a higher Pk, even if the jammer is subsequently turned off. I therefore prefer to play safe and turn the jammer off before I get fired on.

There are many other considerations such as E-pole, D-Range, cranking after firing, notching to the beam, use of chaff, etc etc, but that sums up the use of the jammer "in a nutshell" - not much of a nutshell since it's quite complex!

Use of two jammers will give a very slight increase in the jammer coverage, but otherwise no real advantage, I don't think. I can't say that I've really noticed this and I'm usually too busy to notice by the time it makes any difference!

A HOJ shot still needs a bug/lock to be fired, but will go HOJ immediately on a jamming contact. Burn through Distance (when your radar can bug/lock a jamming contact) becomes the DLZ and it's closer than a "normal" Rmax1. While you can reduce the Su's Rmax1 to +/- 25 miles if you use your jammer (and hence reduce his A-Pole), if he uses jammer, he'll reduce your Rmax1 to +/- 18 miles. He still has an advantage. Don't forget to turn your jammer off!!! It's easy to forget in the heat of the moment. Leave it on and you'll attract AA12's like wasps at a picnic.

When XMIT is in Position 1 we have Radar Priority. When in Radar Priority and the jammer is transmitting and ownship radar and HARM/HTS performance is reduced by 40%. This called SPJ or self protect jamming.

To activate SPJ, set CMDS to semi (or auto, not recommended) and press CMS Aft short. CMS Aft will set the system from standby to active and will automatically transmit when you are locked by a radar. Pressing CMS Forward will launch the selected CMDS Profile. The system will go back to standby mode, each time a radar had been jammed, and you have to give consent to the jammer to standby mode.

When XMIT is in Position 2 we have ECM Priority. When in ECM Priority, the FCR and HARM/HTS are silenced unless an AIM-120 is the active weapon. In this case, it behaves the same as Position 1. Same as Position 1.

Position 3 is an active jamming. Set CMDS to man mode and press CMS Aft to turn on or CMS Right turn off. When activated it will turn off the radar "NO RAD" on the HUD.