SDES is a suite of advanced sensors and laser/radio emission systems
which detect enemy electronic warfare signals and create similar signals
to fool, mislead, and otherwise defeat enemy EW systems.
ECM Effect Strength and EW Strength
The
SDES is a new type of electronic countermeasure. It has a variable ECM
effect strength. An SDES only affects enemy units and systems if that
system's EW strength (listed below) is less than or to equal to the
SDES' ECM effect strength.
EW Strength 1 EW Strength 3 EW Strength 5
C3S Artemis V TAG
Bloodhound Active Probe Spotting
EW Strength 2 Watchdog CEWS Nova CEWS
Artemis IV iNARC Homing Pod
BAP EW Strength 6
C3i EW Strength 4 Sensors (+1 to hit)
C3M Streak Systems
Clan Active Probe/LAP
NARC Homing Pod
Boosted: +2
Affected unit within radius of allied ECM in ECCM Mode: +1
There
are two types of SDES: Mk I and Mk II. Mk I has a base ECM effect
strength of 2 and the Mk II has a base ECM effect strength of 4. Other
differences are noted below.
SDES Modes
When active, an SDES has three modes: Broad ECM, Targeted ECM, and Full Scan
In
Full Scan mode, the SDES acts as an Active Probe. The Mk I acts as a
Beagle Active Probe and the Mk II acts as a Bloodhound Probe.
In ECM modes, the SDES prevents affected enemy units from receiving data from those systems.
Broad ECM mode only affects enemy units to which the SDES unit has line of sight and which lie outside of its minimum range.
Targeted
ECM mode only affects enemy units to which the SDES unit has line of
sight within one hex. It gains a +1 to its ECM effect strength in this
mode so long as that unit is outside of its minimum range.
The
SDES unit chooses to change its mode and target after the movement
phase, but before the weapon attack phase (the same time that TAG attack
rolls are made).
Additive Effects
Multiple
SDESes of the same type affecting the same enemy unit will gain a +1 to
their ECM effect strength. Mk I systems cannot enhance Mk II systems
this way.
Stats
Name Minimum Range Heat Tonnage Criticals
SDES Mk I 5 4 3.5 3
SDES Mk II 7 7 6.0 6
Disabling System Receivers
SDES
effects disable Artemis systems, Streak systems, and probes in much the
same way as conventional ECM systems, albeit with a different effect
range. SDES effects stop systems they affect--systems with an EW rating
below the SDES' ECM effect strength--from receiving data from other systems.
For example:
A NARC beacon on a friendly unit will still provide bonuses, but enemy units affected by an SDES will not gain those bonuses.
A
C3 unit which is affected by an SDES will still provide data to its C3
network, but it will not be able to receive data from that network. A
C3M affected in this way will bring down the network.
A unit affected
by an SDES can still TAG a unit or spot--even the unit carrying the
SDES--but units affected by an SDES cannot make use of that aid.
A
unit whose sensors are affected by an ECM effect strength of 6 has its
integral sensors partially jammed and suffers a +1 to-hit penalty to
weapon attacks.
Miscellany
SDES systems can be targeted by ARAD systems as ECM systems are.
If
the SDES does not recognize a unit as friendly, that unit will be
affected as though it's an enemy. Much like adding a unit to a C3 or C3i
network, this cannot be done on the fly.
With the exception of an
enemy being within the radius of one of their allies' ECCM effect area,
SDES and ECM do not interact unless the SDES is in Full Scan mode.
Integrated SDES
An integrated SDES system is a structural and armor system which incorporates radio and laser sensor and emitter's across a battlemech's frame.
An Integrated SDES is an armor type and a structure type. It provides 15 armor points per ton of armor.
Integrated SDES requires one critical slot in each location except for the head.
Integrated SDES requires at least 1 SDES to be mounted on the system.
Integrated SDES adds +1 to all SDES effects and +1 to range when using SDES in Full Scan mode.
No comments:
Post a Comment