8525B/8528 Technical Service Manual General Information 1-11
Publication No: 15-02036 Issue 6
1.3 Options and Accessories
1.3.1 Options
The following is a list of the options available with brief descriptions. The
references in brackets indicate more detailed descriptions will be found in
those sections of this manual.
AD Fit antenna driver interface for 8558 automatic tuning
whip antenna.
F Fit fan for continuous data transmission.
LF 1.6 to 2MHz—Receive at 0.25µV sensitivity.
LU Fit for USB and LSB operation on selected channels.
USB or LSB selected on front panel (land only) (4.4.5).
L Fit for LSB only operation on selected channels (4.4.5).
M* CW facility (4.6.7).
PH* Headphone output (4.6.6).
PP Fit unswitched battery power output facility.
PS External selective call interface (4.13).
R* Extended/remote control interface (4.6.3).
SE Programmable 4 digit (internally preset) selective call
encoder (4.11).
SDE Programmable 4 digit (internally preset) selective call
encoder/decoder (4.11).
SDEM Front panel programmable 4 digit (mesh) selective call
encoder with (internally preset) decoder: 8525B only
(4.11).
SD Fit Selective Call Decode: 8528/8528S only.
TD Tone-operated decoder: (4.12).
* Required for front control transceivers only.
Programmable Options (per channel)
E RFDS Emergency call.
O Transmit clarifier (land only).
TE Program two-tone encode (specify frequency).
SE Program Selective Call Encode: 8528/8528S only.
INHIBIT Receive only.
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