TransCore 05531 User Manual

Use this number to reference the problem you are having with the Encompass 4/4800 Multiprotocol Reader 

if you  call Technical Support.  

The Encompass 4/4800 Multiprotocol Reader is designed for whole-unit replacement 
and is manufactured with surface-mounted components. It requires sophisticated test-
ing and repair equipment. All testing and repairs are performed at TransCore’s factory. 
Please contact TransCore to obtain a Return Materials Authorization (RMA) for 
returning the reader.

9

The read zone is too small, 
even before the RF power 
and range control have been 
adjusted.

If another Encompass 4/4800 Multiprotocol Reader is in the 
same area, ensure that it is operating on another frequency 
that is at least 2 MHz different.

Check for possible interference from another nearby RF 
source: fluorescent lights, neon signs, high voltage power 
lines, nearby cellular telephone, or radio stations. Lights will 
need to be removed or shielded. Point the Encompass 4/4800 
Multiprotocol Reader or external antenna in a different 
direction to see if interference comes from only one direction. 
You may require a different Encompass 4/4800 Multiprotocol 
Reader that uses another frequency.

Verify that the RF power is set to an appropriate value.

Verify that the range adjustment is set to the maximum.

Verify that the reader is getting at least 16V. 

10

The perimeter of the read 
zone has been defined, but 
there is a “hollow” spot in the 
center of the zone that does 
not read tags.

The angle of the Encompass 4/4800 Multiprotocol Reader or 
external antenna may need adjustment. Slightly tilt the 
Encompass 4/4800 Multiprotocol Reader or external antenna 
to a different angle to change either the length or width of the 
read zone.

Check the range control adjustment. See “Radio Frequency” 
on page 8-15. 

11

The Encompass 4/4800 
Multiprotocol Reader is 
reading tags out of the 
desired read zone, or cross-
lane reads are occurring.

Some interference from other RF or electrical sources may be 
occurring. See 

. 

Verify that the read zone has been properly set up. See 

12

The Encompass 4/4800 
Multiprotocol Reader is not 
providing any output to the 
Wiegand interface.

Ensure that the Encompass 4/4800 Multiprotocol Reader is in 
Wiegand mode (#451). The default is either RS

–

232 or RS

–

422 mode. Refer to 

. 

Ensure the tags are properly programmed with Wiegand data.