Electronic article surveillance - 1.95 MHz

 

With a radio-frequency article surveillance a transmitter generates a zone, in which not deactivated etiquettes or not removed hard etiquettes (tags) are recognized by the system. The transmitter sends out constantly a RF signal with a certain frequency (RF 1.95 MHz).

 

If a not deactivated etiquette or a hard etiquette (tag) is brought now into this field, a coil which is placed right inside the tag is charged and sends out a signal which is identified by the receiver and releases therefore the alarm.

 

EAS systems with RF technology can be delivered in the many different variations. For small shops or shops with a small entrance area (up to 100-120 cm) an inexpensive, but extremely powerful mono antenna is often sufficient. To protect larger distances up to 120-160 cm we recommend 2 antenna systems with an active broadcasting antenna and a receiver antenna as well as a second passive antenna in addition to a mono antenna. With even bigger distances between 180 and 230-250 cm article protection system cover the whole area completely only with 2 antennas. Here both antennas are equipped with a special electronics to covers the big distances well.

 

Article surveillance systems using RF 1.95 MHz are most suitable for shops which protect only merchandise with hard tags. These article protection systems have a fixed frequency, so a usage of security labels is not possible.

 

 

EAS systems using RF 1.95 MHz are most suitable for shops using only hard tags. These article surveillance systems are even less expensive than our mono antennas 8.2 MHz and are even easier to install and implement.

 

Due to the technology these systems are absolutely maintenance-free and permanently reliable.

 

Advantages:

+ Detection up to 1.25 m in both directions

+ Self-adjusting electronics

+ Most modern electronics

+ Easy synchronisation with other systems

 

 

The following systems can be delivered for RF 1.95 MHz:

 

–         Article surveillance Mono195 – for entrance areas to 120 cm

–         Article surveillance DuoAP 195 – for entrance areas 120 – 180 cm

–         Article surveillance DuoAA 195 – for entrance areas 160 – 240 cm

–         Article surveillance Dual Easydet 195 – for entrance areas 120 – 210 cm

–         Article surveillance Dual Superdet 195 – for entrance areas 150 – 250 cm

 

The protection area which is stated above refers to the distance between the antennas only. Please note, that some systems also protect additional areas on the side of the antennas.

 

 

The following factors should be taken into consideration before the installation of RF systems:

 

–         Metallic doors: Antennas should be put approx. 0.5 – 1.0 meters away from the entrance area.

–         Electric cables above the article protection disturb the antenna sometimes

–         Other RF systems cuse interference and disturb the systeme. Here the frequency must be adjusted during installation.

–         Strong electric systems (cash registers, …) in the immediate surrounding area of the article protection should be avoided

–         Mono antennas protect in both directions, hence, a bigger area must remain on both sides of the antenna without security tags.

 

 

For the article surveillance on RF 1.95 MHz base there are in total 4 different kinds of antennas which differ regarding their functions and tasks. You find information about our 4 different types of antennas on the following side of information.

 

–         Article protection with active antenna

–         Article protection with passive antenna

–         Article protection with dual system Easydet

–         Article protection with dual system Superdet

 

According to the kind of the antenna there are different designs and constructions. You find pictures and dimensions also on this side.

 

Prices: Please send us your inquiry using our contact form or put this article on our watch list for later inquiries