How do I use the HARM?

[DmitriKozlowsky]

HQ7 in front of me about 15 nm. HARM display shows HQ radar BEHIND me! Master Arm: ON. HARM in TOO mode. HARM is selected in STORES. Yet there is an X through, won't fire.

HARM display is SOI , HQ7 is highlighted. But I cant engage becouse the procedure is once again, needlessly and absurdly convoluted.

[panton41]

Blame Raytheon and Boeing, they're the ones who made it that way. (Well, Texas Instrument and McDonnell Douglas.)

[Shimmergloom667]

Your HARM display might have been SOI, but did you actually hand off the HARM? Because when you didn't, then of course it won't fire.

 

Where a threat shows up on the RWR is dependent on your position in 3-dimensional space, too, and where your antennas pick up emitters.

 

All in all: pretty easy and straightforward. Classic case of PEBCAK.

[QuiGon]

HQ7 in front of me about 15 nm. HARM display shows HQ radar BEHIND me! Master Arm: ON. HARM in TOO mode. HARM is selected in STORES. Yet there is an X through, won't fire.

HARM display is SOI , HQ7 is highlighted. But I cant engage becouse the procedure is once again, needlessly and absurdly convoluted.

Uhm, the HARM display can't show you radar emitters behind yourself. Unlike the RWR the HARM display in TOO mode does not picture a top down view with you in the center. Instead it gives you a forward looking view from the seeker head, just like the Maverick does.

[Fri13]

Uhm, the HARM display can't show you radar emitters behind yourself. Unlike the RWR the HARM display in TOO mode does not picture a top down view with you in the center. Instead it gives you a forward looking view from the seeker head, just like the Maverick does.

 

In other words, HARM has a Scope-C mode that is straight forward from missile boresight.

So you get direction in X and Y scale but not the range.

[DmitriKozlowsky]

How does one hand off HARM target to the HARM missile uin TOO mode. Or in SP. Cause right now, firing one in SP mode, even within lethal range of radar in desert, the missile just flies dumbly forward.

WIsh there was a clear bullet list of HARM targeting process.

[RealDCSpilot]

uncage

[Razor18]

Is it just me, or is it really complaining before RTFM?

 

DCS manual page 192:

 

How to Employ the AGM-88C HARM in TOO Mode

1. Master Arm to ARM and Master Mode switch to A/G

2. Select HARM from the SMS page

3. Set TDC to the HARM format page

4. Press to select / cycle detected radar emitters

5. Hand-off target to HARM by pressing Cage/Uncage button or [C].

6. With threat emitter boxed on EW Page or EW HUD with H-OFF indication, press weapon release button or [Right Alt + Spacebar] to launch the missile.

 

Awaiting your kind feedback if it does work?

 

Sincerelly

Edited May 4, 2020 by Razor18

[Razor18]

Oh, just to save you from asking:

 

page 190

 

How to Employ the AGM-88C HARM in SP Mode

1. Master Arm to ARM and Master Mode switch to A/G

2. Select HARM from the SMS page

3. Press to select / cycle detected radar emitters

4. With threat emitter boxed on EW Page or EW HUD, press weapon release button or [Right Alt+ Spacebar] to launch the missile

 

Hope this helps too. Needless to say, there are a tons of other interesting info in it.

[DmitriKozlowsky]

uncage

 

1st that I did. Did not work. I'll try again.

TO be clear UNCAGE HARM in TOO (tgt of opportunity ) mode. Wait for lock. Release.

 

Thank you

[QuiGon]

Make sure the HARM page is the Sensor of Interest (Diamond in upper left or right corner of the display).

[jojo]

Never had an issue other than not SOI on HARM page...which was my fault :D

[maxTRX]

Oh, just to save you from asking:

 

page 190

 

How to Employ the AGM-88C HARM in SP Mode

1. Master Arm to ARM and Master Mode switch to A/G

2. Select HARM from the SMS page

3. Press to select / cycle detected radar emitters

4. With threat emitter boxed on EW Page or EW HUD, press weapon release button or [Right Alt+ Spacebar] to launch the missile

 

Hope this helps too. Needless to say, there are a tons of other interesting info in it.

 

Might as well stay on TOO:smartass:

[DmitriKozlowsky]

Oh, just to save you from asking:

 

page 190

 

How to Employ the AGM-88C HARM in SP Mode

1. Master Arm to ARM and Master Mode switch to A/G

2. Select HARM from the SMS page

3. Press to select / cycle detected radar emitters

4. With threat emitter boxed on EW Page or EW HUD, press weapon release button or [Right Alt+ Spacebar] to launch the missile

 

Hope this helps too. Needless to say, there are a tons of other interesting info in it.

 

 

Damn! Are we sure about this? THere is no hand off. I tried both I ( RAID/FLIR FOV Select) and Cage/Uncage. Neither do anything for HARM, as far as I can tell.

There is no hand off.

If the missile comes of the rail , it files blind.

 

In TOO mode (is it even functional) the HARM box on stores HARM sub page is always X out.

With SP I do get STBY. When and if I get shoot que of big BOX on HUD, the HARM flies but does not home in on emitter.

 

Dear Lord!!! I hate first few weeks with new module. Both docs and users are just .... well not often helpful. THough they do mean well. On YT, Grim Reapers. Well lets just say that they are great bunch, but lack ability to impart usefull information.

 

I thought that Hornet was 3 years old by now. All these functions are supposed to be implemented. However I don't think ECM system actually jams anything. Chaff and flares do pop. So thanks be to for small miracles.

[Razor18]

Which guide do you have your informations from?

[Kang]

There is no hand-off in SP mode. It's like 'quick shot, save yourself' mode of operation.

 

TOO requires a hand-off, but gives you a much clearer picture of (and control over) what and where your missile is aiming for. Also it is much more making sure that the missile actually acquires the target when fired.

 

Both of these modes worked quite alright for a long time by now.

 

ECM is very WIP, read: don't bother.

[will-]

Check wags videos. They explain how deploy the harm. After learning that then you can understand the best technique.

[maxTRX]

There is no hand-off in SP mode. It's like 'quick shot, save yourself' mode of operation.

 

TOO requires a hand-off, but gives you a much clearer picture of (and control over) what and where your missile is aiming for. Also it is much more making sure that the missile actually acquires the target when fired.

 

Both of these modes worked quite alright for a long time by now.

 

ECM is very WIP, read: don't bother.

 

SP mode is also WIP, I hope.

[Bunny Clark]

In TOO mode (is it even functional) the HARM box on stores HARM sub page is always X out.

With SP I do get STBY. When and if I get shoot que of big BOX on HUD, the HARM flies but does not home in on emitter.

 

TOO mode is fully functional and works great.

 

Make sure you're on the HARM targeting page, you should see the different modes on the left side and a cross in the middle representing missile boresight. Again, this is a forward-looking view, not top-down. Make sure TOO is boxed.

 

Make sure the HARM display has TDC priority, as indicated by the diamond in the upper right corner of the display. If TDC priority is not on the HARM display some controls will work, but other won't, and the missile will not launch. To set this, press the Sensor Control Switch in the direction of the DDI the HARM display is on.

 

The HARM display shows detected radar emitters in front of you. A bar above a contact indicates that contact is tracking you, and is NOT an indication of HARM guidance at all.

 

You select a contact for the HARM to track by hitting the RAID / FOV button on the throttle. This will step a designation box around the display highlighting different contacts. Press this button until there is a box around the contact you wish to attack. This function will work fine even if the HARM display does not have TDC Priority.

 

With the contact you wish to attack boxed, hit the Uncage button on the throttle. You will now see H-OFF displayed above the target on the HARM display, and HARM on the HUD will become uncrossed indicating a valid target track. This function *will not work* if the HARM page is not set to TDC Priority, and this is the place most people get tripped up.

 

Hit the Weapon Release button on the stick to fire the HARM. Because the HARM sensor is a passive sensor there is no range indication in TOO mode, you'll need to guess that the target is in range based on other data or estimating by looking at the target box on the HUD. For most SAM systems I like to fire right around the max range of the SAM, using the SA page as reference.

 

The best video guide for this is from Wages:

[DmitriKozlowsky]

There is NO handoff to HARM in TOO mode using CAGE/UNCAGE or EO FOV/RAID functions.

 

Condition: HQ7 radar about 15 nm in front 12'clock. Clear LOS. Daytime. My altitude 11500 MSL, about 9700 AGL.

Master Mode: AG

Master Arm: ON

HARM station: 7

HARM mode on sub page: TOO

Target classified U (unknown?) later changes to HQ

With U HARM ready box is X out. Can't fire. When emitter is classed as HQ. HARM is still X out, and HANDOFF is not happening.

Tried: UNCAGE followed by FOV/RAID for hand OFF. Still HARM is X.

Tried: FOV/RAID followed by UNCAGE. No handoff, HARM is still X.

Tried holding down for few seconds either, to see of there is a time delay or button needs 1 second of hold. Nada. No work. HARM is X in TOO. Nothing works.

 

I am being told A, but B is happening. I do not understand why there is no shoot que. Even at HARM and SAM point blank ranges, without going inside range.

So somewhere I am either getting wrong information, or I am misunderstanding it. But it seems pretty clear as what I should be doing, except it does not work.

Edited May 5, 2020 by DmitriKozlowsky

[Bunny Clark]

Target classified U (unknown?) later changes to HQ

With U HARM ready box is X out. Can't fire. When emitter is classed as HQ. HARM is still X out, and HANDOFF is not happening.

 

This is curious. I wonder if there's some strange interaction here with Deka's Chinese Asset Pack.

 

Try it with something from the base game, like an SA-6 or SA-11 and see what happens.

[unknown]

This is curious. I wonder if there's some strange interaction here with Deka's Chinese Asset Pack.

 

Try it with something from the base game, like an SA-6 or SA-11 and see what happens.

 

There is no strange interaction with Deka's Chinese Asset Pack here. Everything is working fine, the FA-18, the Harm, the TOO mode.

 

I would highly suggest that the OP is providing a TRACKFILE so we can see what he is doing(and probably missing) because the steps provided in this thread several times now work fine in at least the latest OB version of DCS and had worked fine for me since release of the Harm.

 

My wild guess is that your DDI showing the Harm is NOT SOI, thats why you can't hand off the Harm and can't shoot. BTW, there is no SHOOT CUE in the HUD like with the AIM-120.

Edited May 5, 2020 by unknown

[Razor18]

There is NO handoff to HARM in TOO mode using CAGE/UNCAGE or EO FOV/RAID functions.

 

Condition: HQ7 radar about 15 nm in front 12'clock. Clear LOS. Daytime. My altitude 11500 MSL, about 9700 AGL.

Master Mode: AG

Master Arm: ON

HARM station: 7

HARM mode on sub page: TOO

Target classified U (unknown?) later changes to HQ

With U HARM ready box is X out. Can't fire. When emitter is classed as HQ. HARM is still X out, and HANDOFF is not happening.

Tried: UNCAGE followed by FOV/RAID for hand OFF. Still HARM is X.

Tried: FOV/RAID followed by UNCAGE. No handoff, HARM is still X.

Tried holding down for few seconds either, to see of there is a time delay or button needs 1 second of hold. Nada. No work. HARM is X in TOO. Nothing works.

 

I am being told A, but B is happening. I do not understand why there is no shoot que. Even at HARM and SAM point blank ranges, without going inside range.

So somewhere I am either getting wrong information, or I am misunderstanding it. But it seems pretty clear as what I should be doing, except it does not work.

 

Stop moaning if you don't do exactly what you are told by many.

 

I do not see in your description where did you put the priority diamond to the HARM screen with pressing your SCS toward the HARM screen. I tried it too without it, and indeed no handoff then. Please try it, as also Bunny Clark mentioned it earlier.

 

Every "active" screen (weapons, radars, SA page) you ever want to work with, needs it's freaking diamond in the upper right corner to be listening to you.

Edited May 5, 2020 by Razor18

[Shimmergloom667]

I do not see in your description where did you put the priority diamond to the HARM screen with pressing your SCS toward the HARM screen. I tried it too without it, and indeed no handoff then. Please try it, as also Bunny Clark mentioned it earlier.

 

Exactly. Without HARM TOO page being SOI - no handoff.

[jojo]

There is no strange interaction with Deka's Chinese Asset Pack here. Everything is working fine, the FA-18, the Harm, the TOO mode.

 

I would highly suggest that the OP is providing a TRACKFILE so we can see what he is doing(and probably missing) because the steps provided in this thread several times now work fine in at least the latest OB version of DCS and had worked fine for me since release of the Harm.

 

My wild guess is that your DDI showing the Harm is NOT SOI, thats why you can't hand off the Harm and can't shoot. BTW, there is no SHOOT CUE in the HUD like with the AIM-120.

 

There is one thing to notice when engaging HQ-7, I had STR radar on RWR, I destroyed it with HARM.

But I was engaged without RWR warning.

 

The HQ-7 LN were probably using optical tracking, which gives no warning without MLWS, and won't attract HARM on HQ-7 LN :music_whistling:

 

+1 with SOI issue. Sensor Control Switch affect SOI amongst DDI, MPCD and HUD. On DDI & MPCD this is displayed with diamond displayed on top right corner.