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Jamming


wombat1417
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And the most important quote from that other thread:

 

Any range > 0 does result in the jamming working, though the impact it has on the detecting radar may be small.

 

The general rules for effective jamming.

1. If you are using a jammer to escort friendly planes, keep it as close to the friendly planes as possible to help 'shield' the friendly planes.

2. If you are using a jammer to try to blind enemy radar, get the jammer as close to the enemy radar as possible.

 

ECM with range 50nm can reduce a 360nm ranged radar to an effective range of 193nm in the game. A 20nm jammer can reduce that same 360nm radar to 301nm range.

 

Trust this answers your question, kneecaps. And welcome to HarpGamer. :)

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And the most important quote from that other thread:

 

Any range > 0 does result in the jamming working, though the impact it has on the detecting radar may be small.

 

The general rules for effective jamming.

1. If you are using a jammer to escort friendly planes, keep it as close to the friendly planes as possible to help 'shield' the friendly planes.

2. If you are using a jammer to try to blind enemy radar, get the jammer as close to the enemy radar as possible.

 

ECM with range 50nm can reduce a 360nm ranged radar to an effective range of 193nm in the game. A 20nm jammer can reduce that same 360nm radar to 301nm range.

 

Trust this answers your question, kneecaps. And welcome to HarpGamer. :)

 

Hi! Thanks for the welcome (just started simming HCE, last time I played was Harpoon 97 (around 98-99).

 

Thanks for the info. What I'm really trying to get my head around is the 'Range' quote for the ALQ-99..it lists 25NM. What does that mean? In your examples would the Prowler need to be whin 25NM of a threat radar to reduce it from 360nm to 301nm?

 

I understand that range > 0 has an effect, but at what point does the effect become ineffective.

 

I'd like some way to know (at least roughly) how far a jamming unit like the Prowler should be placed to get any kind of worthwhile effect, and also how much reduction in threat radar range may be acheived.

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Hi! Thanks for the welcome (just started simming HCE, last time I played was Harpoon 97 (around 98-99).

 

Cool, I hope and expect you will enjoy the new version. It has come a long way. :)

 

I understand that range > 0 has an effect, but at what point does the effect become ineffective.

 

Firstly, there are basically two types of jamming in HCE: offensive and defensive. Jammers with range > 0 will be offensive jammers, that is, capable of area/escort jamming. They will jam enemy radars (ie. area jamming) as well as shield friendly platforms (ie. escort jamming). Jammers with range = 0 are defensive jammers. They protect only the host platform.

 

What I'm really trying to get my head around is the 'Range' quote for the ALQ-99..it lists 25NM. What does that mean? In your examples would the Prowler need to be whin 25NM of a threat radar to reduce it from 360nm to 301nm?

 

The range value is more a measure of jamming power than a true range of the jammer. So, you do not need to close to 25 nm to jam an enemy radar. In fact, you will notice that it has jamming effect at much greater ranges. (Note when the lightning bolt symbol appears). The most that an enemy radar's range can be reduced is 87 percent.

 

The hit percentage of an offensive jammer does not play a role, and should be ignored. It does play a role in defensive jamming, ie. it reduces the final hit percentage of an attacking missile.

 

I'd like some way to know (at least roughly) how far a jamming unit like the Prowler should be placed to get any kind of worthwhile effect, and also how much reduction in threat radar range may be acheived.

 

The only answer is, "it depends", and it will depend largely on the range of the enemy radar.

 

Jamming adheres to radar line of sight, so putting a jammer at VLow altitude isn't going to be terribly helpful. Keep those Prowlers at High altitude when they're actually jamming! ;)

 

In area/escort (offensive) jamming, having more than one jammer is useful, but having more than two jammers in close proximity is not (the second jammer helps to cover the first, but doesn't increase jamming power in total).

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The range value is more a measure of jamming power than a true range of the jammer. So, you do not need to close to 25 nm to jam an enemy radar. In fact, you will notice that it has jamming effect at much greater ranges. (Note when the lightning bolt symbol appears). The most that an enemy radar's range can be reduced is 87 percent.

 

Thanks once more! Very useful info! Important to know the range for the jammer is it's 'power'.

 

ECM with range 50nm can reduce a 360nm ranged radar to an effective range of 193nm in the game. A 20nm jammer can reduce that same 360nm radar to 301nm range.

 

How is this calculated...a formula?

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Attached is a raw (unpretty, uncommented) spreadsheet that will give you an idea for the best possible result of jamming given a jammer of a certain range and a radar (jammee) of a certain range.

 

You can put in your own radar and jammer ranges, it will spit out the jammed radar's range assuming perfect jamming conditions. Rarely if ever will the jamming be this textbook good but it does give you an upper-bound.

HC_ECM_Escort_Limits.zip

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Attached is a raw (unpretty, uncommented) spreadsheet that will give you an idea for the best possible result of jamming given a jammer of a certain range and a radar (jammee) of a certain range.

 

You can put in your own radar and jammer ranges, it will spit out the jammed radar's range assuming perfect jamming conditions. Rarely if ever will the jamming be this textbook good but it does give you an upper-bound.

 

Thanks very useful!

 

However it's raised the question again. When referring to ranges. Are we referring to the distance between the jammer and the jamee...or the range quote as the 'power' for the jammer and the maximum detection range of the jamee?

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When referring to ranges. Are we referring to the distance between the jammer and the jamee...or the range quote as the 'power' for the jammer and the maximum detection range of the jamee?

 

The "Range50" shown in the first column of the spreadsheet is the range that the jammer needs to be from the target to start jamming.

 

The "ECMRange" is the range (i.e. power) that you input into the field in the database entry for that jammer.

 

The "RadarRange" is the range (i.e. detection range) of the targeted radar you intend to jam.

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The "Range50" shown in the first column of the spreadsheet is the range that the jammer needs to be from the target to start jamming.

 

Almost, Range50 is the distance from radar to jammer where the jammer could potentially reduce the radar's range by 50%.

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The "Range50" shown in the first column of the spreadsheet is the range that the jammer needs to be from the target to start jamming.

 

Almost, Range50 is the distance from radar to jammer where the jammer could potentially reduce the radar's range by 50%.

 

Alrighty. We'll go with that. B)

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The "Range50" shown in the first column of the spreadsheet is the range that the jammer needs to be from the target to start jamming.

 

Almost, Range50 is the distance from radar to jammer where the jammer could potentially reduce the radar's range by 50%.

 

Alrighty. We'll go with that. B)

 

Thanks for that both! Very good info to know! I think this is going to really help my airstrike planning/packaging

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Does a defensive jamming pod, like ALQ-119, need the radar to be turned on to work?

 

No. (Serves me right for not checking with the code guru). An active radar is only required for offensive (area/escort) jamming. "Point defense" countermeasures (i.e. defensive ECM, chaff/flares, etc) do not need an active radar.

Edited by CV32
Spoke too soon
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