Top-of-the range ProCoder-3 (audio processor / stereo encoder / fully-featured RDS encoder) now makes building a high quality, reliable FM system easier and more cost-effective than ever before.

Unlike some of our competitor’s offerings this is not a PC board in a box, but a DSP-based design:

• Very fast boot in under 1 second!
• Very low audio latency 7ms
• Low power dissipation 10 Watts
• No fan, no vents, cool running
• Superb fully-featured RDS

all make ProCoder-3 stand out from the competition.

TA flag can be raised remotely under serial / data control, by closing contact or via optional DTMF decoder or optional IP port.

BENEFITS:

• No compromise on loudness or clarity, fully-digital throughout
• ‘Transparent’ mode enables main (multi-band) audio processor
location at the studio
• Save an enormous amount of money if you are equipping
multiple transmission sites!
• Very effective in ‘stand-alone’ mode also:
AGC, compression, & brightness enhancer
• Improve reliability and save money with automatic audio fail
detect and switching
• Reliable, maintenance-free; low heat dissipation = NO FAN NEEDED
OR USED!
• Fully-featured integral RDS encoder

APPLICATIONS:

• FM networks: use at transmission site, locate preferred multiband processor at studio
• Satellite ‘drop-downs’, telco-fed FM sites (analogue or digital) and RBFM repeaters
• Stand-Alone FM processing
• All Network, Commercial & Community radio

FEATURES:

• ‘Transparent mode’ offers brick-wall peak limiting without disturbing sonic signature
• Automatic silence detect and fall-back to secondary audio source (defeatable)
• Composite clipper for ‘last ounce’ loudness with perfect pilot and subcarrier protection
• Overshoot-compensated 15.5kHz low-pass filters
• GPI tallies for: PSU OK, DSP watchdog, primary audio OK, All-OK
• Advanced AGC as used in our ALPS levellers offers unsurpassed, rapid control of levels
• Presence enhancer to brighten programme if used without multiband pre-processing
• No-tamper front panel (set-up by PC only: GUI software, USB and RS-232 ports provided)
• Bright, always-visible LED bar-graphs for instant confidence checks
• Very low audio latency (7 milliseconds), very fast boot-up (<1 second) • TCP-IP connectivity option; Left/Right audio outputs option • Factory presets deliver exactly the results you need for any application …fast • Integral fully-featured RDS encoder

SPECIFICATIONS:

RDS Data Groups supported:
PI – Program Identification
PTYN – Program Type Name
RT / RT+ – RadioText including Tagging
PS – Program Service
DI – Decoder Identification
TDC – Transparent Data Channels
PTY – Program Type
EON – Enhanced Other Networks information
IH – In House Applications
TP – Traffic Program
M/S – Music/Speech
ODA – Open Data Applications
AF – Alternative Frequencies
PIN – Program-Item Number
CT – Clock-Time and Date
TA – Traffic Announcement
ECC – Extended Country Code
TMC – Traffic Message Channel


Frequency Response:
ANALOGUE-ANALOGUE (L=R input,
output de-emphasised):
20Hz-15kHz ±0.2dB

Noise:
ANALOGUE-ANALOGUE:
(rms 20Hz-20kHz, output d/e):
<-75dB ref: 100% modulation (d/e on)

Distortion:
At 6dB limiting: <-70dB / 0.03% THD

Stereo Seperation:
Better than 60dB at 1kHz

Input:
ANALOGUE: Active balanced, 10k
(bridging), standard operating level –
6dBu to +14dBu (clip +22dBu)
DIGITAL: AES-3 (XLR); 32, 44.1, 48,
88.2, 96 kHz. 16, 20, or 24 bits.

Output:
MPX (Analogue): Unbalanced (on BNC),
standard operating level -6dBu to +18dBu

Output RDS signal amplitude:
Adjustable <25mV to >1.4 V pk-pk

RDS signal bandwidth:
±2.4 kHz (-50 dBc)

RDS spurious suppression:
>90 dB

RDS harmonics suppression:
>80 dB

MPX loop-through voltage gain:
1.00 (guaranteed from 2 Hz to 100 kHz)

Clock reference:
Pilot tone or internal generator

19 kHz pilot PLL lock bandwidth:
software switchable
± 5 Hz or ± 2 Hz

Pilot tone level:
min. <50 mV pk-pk

Phase shift adjust:
0-180 degrees in 9.5 degrees steps

Signal connectors:
Unbalanced, BNC, 50-Ohm

Data connector:
RJ45, RS-232 (9 pin f), bidirectional

Noise protection:
Threefold level sampling

Com. speed:
Software switchable 1200-19200 kbps

Com. mode:
8 data bits, no parity, 1 stop bit

UECP protocol support:
Basic implementation for TMC and RT+

Processing blocks:
High-Pass: 3dB frequencies 3Hz [DC
block], 25Hz, 45Hz, 70Hz, 110Hz,
12dB/octave
Gated AGC: Capture range 40dB (±20dB);
maximum positive gain can be set +
Advanced AGC enables faster, programmedependent
operation
Compressor: Nominal 2:1 slope
Presence Enhancer: Boosts selected
frequencies for presence and / or
brightness
Limiters: look-ahead dual timeconstant
peak limiters plus NCDCS fully
anti-aliased main clippers
Low-Pass Filter: Cut-off frequency
15.5kHz, overshoot compensated,
stop-band better than -70dB
HF Limiter: 50µs or 75µs emphasis curve
Stereo Encoder: Zenith / GE Pilot tone
Composite Clipper: -1.0 to +2dB, Antialiasing,
filters protect 19kHz ± 200Hz
and above 54kHz
Tilt Corrector: Corrects low
frequency overshoots in transmitters /
exciters. Fully adjustable.

AC power input:
100 – 240V AC / 12.5 Watts (Acceptable
range 88 to 264V AC)

Dimensions & weight:
1-RU: 44x482x290mm / 1.75 x19x11/25”
Weight: 1.8kg / 4lbs

Options:
Audio outputs and 10/100MHz Ethernet
TCP/IP port available at time of ordering
only, additional cost applies

Computer Control:
Setup is via PC GUI only (GUI software
included, updates are free of charge).
Select a factory preset, modify it, set levels
etc, save to flash memory. All-text command
format. Every processing and RDS
parameter, including all thresholds and time
constants, can be accessed and modified
under PC control. USB on front panel, plus
RS-232 on rear panel. 10/100 LAN port is
optional.

Defining Specification:
CENELEC EN50067

Warranty:
3 year return-to-base warranty

Approvals:
CE (EMC & LVD), RoHS

[Issue 1.1 PRODUCT INFORMATION – E&OE – SUBJECT TO CHANGE WITHOUT NOTICE.]