Our ideas for the deception scheme crystallized around a small, simple, and cheap repeater jammer
, which we called the DAJ [Distributed Area Jammer], which would fit on a telegraph pole and run off main power.
More sophisticated is the repeater jammer
, which captures and then re-radiates a portion of the enemy's transmission.
It then uses signal algorithms on a 386 chip to determine whether it is incoming or outgoing and employs a repeater jammer
to send a signal back to the shell, causing it to be detonated at a much higher elevation.
The Elta EL/L8260 attack helicopter self-defense system can include the EL/L-8231 small aircraft CW repeater jammer
The Southwest China Research Institute of Electronic Equipment (based at Chengdu and Guanxian in Sichuan Province) offers the land-based I/J-band BM/DJG 8715 radar jammer (Chengdu facility); the E- through J-band BM/HZ 8610 surface-ship ESM (Chengdu); the E/F- and the I/J-band BM/KG 8601 airborne repeater jammer
(Chengdu); the I/J-band BM/KG 8605 and I-band BM/KG 8606 airborne noise jammers (Chengdu); the C- through J-band BM/KJ 8602 RWR (Guanxian); and the D- through J-band BM/KZ 8608 airborne ELINT system (Chengdu).
exploitation of the minimum delay time through the repeater jammer
Figure 1(a) illustrates the spectrum produced by a repeater jammer that modulates the return with narrowband Doppler noise that masks the skin return.
4-GHz/2- to 18-GHz BM/KJ 8502 fixed-wing RWR, the BM/KG 8601 E/F- and I/J-band repeater jammer, the BM/KG 8606 I-band radar jammer, the BM/KG 8605 I/J-band noise jammer and the BM/KG 8605 I-band radar jammer.
Identified EW improvements carried out on Mirage III/50 aircraft include the introduction of Thomson-CSF's Sherloc RWR on Venezuelan Mirage 50EV aircraft; the installation of an RWR and what is described as "active and IR ECM" on 52 Swiss Mirage IIIS/RS/BS/DSs; the provision of Israeli-sourced EW gear in Argentine Mirage IIIE/CJ/Dagger/Mara aircraft; the introduction of the DTS EWPS-1000 suite on Chilean Mirage 50 Panteras and the use of Aviatronic's RWS-200 RWR and SPJ-200 repeater jammer on South Africa's reworked Mirage III, the Cheetah.
The four-year cycle of reinventing the repeater jammer
concept, which extends back to 1944, will have finally been broken.
However, an active repeater jammer
operating from a towed decoy can radiate at the radar frequency while replicating, precisely, the radar waveform.
Decoys carrying active repeaters can create the same effects in the radar as the repeater jammers