simple layout with no jargon.
Designed for school & community radio.
Nine multi-function channel mixer.
Built in telephone interface.
Built in headphone volume limiter.
Large
,
simple LED volume display.
Remote output for fader starts.
Speaker muting when ‘Mics’ are on.
External mic-light switching output.
‘Programme’ and ‘record’ outputs.
‘Aux’ input for iPod or MP3 players.
Four microphone/line channels.
Four stereo line channels.
Switchable telephone/AUX channel.
Stereo USB audio to and from a PC.
Guest headphone ‘talkback’.
Reliable
,
low cost mixing solution.
Rack or flush mountable.
Integrated AC power supply.
specification
Technical Specification For S0
Mic Inputs Audio Specification
Input Impedance:
> 1k5Ω electronically balanced
Input Gain Range:
Preset pot +24dB to +67dB ref -50dBu
,
TRIM pot ± 15dB
Frequency Response:
40Hz to 20kHz –1dB
,
+0dB
Mic input E.I.N.:
-130dB with 150Ω source
Phantom Power:
+48V to each mic input (SCi selectable)
Displayed Parameters
More than 50 parameters displayed on a wide graphic LCD
Adjustments
From the frontal panel trough OLED/from PC
Number of L-DMOS in amplifier stage
1
RF power stage technology
ICEFET & ECOSAVING
Dimensions: Rack units
2 RU
Dimensions: W – H – D
48.5 – 8.5 – 58.5 cm / 19.11 – 3.35 – 23.05 inches
Weight
9.4 Kg / 20.72 lbs
Number of cooling fans
2
AUDIO PERFORMANCE
MPX input level
+15/-10 dBu for 75 KHz standard deviation
MPX level adjustment
Soft adjust 0.1 dB steps from front panel
MPX input impedance
5 KΩ selectable
L/R input level
+15/-10 dBu for 75 KHz standard deviation
L/R level adjustment
Soft adjust 0.1 dBu steps from front panel
L/R Input Impedance
Selectable 10 K – 600 Ω
,
balanced
AES/EBU input resolution
24 bits
AES/EBU input sample rate
32
,
44.1
,
48
,
96 KHz Automatically selected
AES/EBU input level
-20 dBFS – 0 dBFS
AES/EBU input impedance
110 Ω balanced
AES/EBU-Analog input automatic changeover
Yes
PILOT Amplitude adjustment
Soft adjust 0.05% steps from front panel
PILOT Phase adjustment
Soft adjust 0.01 degree steps from front panel
PILOT tone frequency
19 KHz
PILOT tone deviation
Soft adjust +/- 7.5 KHz
PILOT tone frequency stability
+/- 1 Hz
THD+N (Stereo/Mono operation)
< 0.05% with 75 KHz frequency deviation < 0.05% with 100 KHz frequency deviation 30 Hz to 15 KHz
Pre-emphasis
0/25/50/75 microseconds
,
selectable
Pre-emphasis tolerance
+/- 0.1 dB
FM S/N (MPX operation)
82 dB 20 Hz to 23 KHz @ 53 KHz – detector RMS
FM S/N CCIR (Stereo/Mono operation)
> = 72 dB weighted > = 72 dB unweighted 400 Hz
,
75 KHz frequency deviation
,
quasi-peak detector
,
50 us de-emphasis
Asynchronous AM S/N unweighted
> = 55 dB a 400 Hz
,
75 us de-emphasis
Synchronous AM S/N
> = 50 dB a 400 Hz
,
75 us de-emphasis
Amplitude-frequency characteristic (stereo/mono operation)
+/- 0.1 dB (without pre-emphasis) +/- 0.1 dB (with pre-emphasis) 20 Hz to 15 KHz
,
@ 400 Hz
Stereo Crosstalk (typical)
60 dB @ 400 Hz to 10 KHz
Linear crosstalk
>60 db 20 Hz to 15 KHz
Intermodulation distortion
<0.05% Measured with two of tones 1 KHz & 1.3 KHz
,
ratio 1:1 at 100% modulation
Class of emission
F3
Stereo emission
According to ITU-R reccomendation 450 (pilot tone)
CONNECTORS
RF output connector
N
MPX
BNC Female
LEFT & RIGHT
XLR Female
AES/EBU
XLR Female
AUX
BNC Female
Monitor/19 kHz
BNC Female
RF PERFORMANCE
Output impedance
50 Ω
Automatic power RF control
Stabilizes the output power value on the set value
Overall output power RF stability
+/- 0
,
1 dB
VSWR
2:1 at full power. Automatic power reduction beyond 1.7:1. Transmitter is protected fro open and short circuit.
Harmonics
< -75 dBc
Out of band emission (spurious)
< -80 dBc
EXCITER PERFORMANCE
PLL lock time
<10 sec
Frequency deviation
+/- 75 KHz 0.1 dB steps adjustable
Maximum frequency deviation
+/- 150 KHz
Frequency stability
1 ppm
RF Frequency steps
10 KHz
Phase Response
+/- 0.1 degree from linear phase; 20 KHz to 100 KHz
INSTALLATION REQUIREMENTS
Power supply
110
,
230 Two-Singlephase Version 50-60Hz VAC
Power consumption (typical)
690 W
Overall efficiency (typical from -3 dB to Pnom)
> = 70%
Power factor
> 0.95
Current Consumption @ 230 VAC/single phase
3 A
COOLING/NOISE/DATA
Cooling system
Forced air-cooling
Acoustic noise
< 65 phone @ transmitter room
,
2 M distance from the front of the transmitter
ENVIRONMENT
Temperature range (operating)
-5 ÷ +45 °C
,
23 ÷ 113 °F
Temperature range (non operating)
-20 ÷ +55 °C
,
-4 ÷ 131 °F
Humidity range (operating)
95% @ 40 °C
,
104 °F
Humidity range (non operating)
90% @ 55 °C
,
131 °F
Altitude range (operating)
<3000 meters / <9840 Feet
Altitude range (non operating)
<15000 meters / < 49200 Feet
TELECONTROL & TELEMETRY
Remote control
Yes
Remote control
,
dry contacts
Yes
SNMP option
Yes (external)
features
Features:
High efficiency Extremely low-power consumption and reduced operating costs.
Smart functions/synaptic functions Extraordinary performance level through the use of powerful operational algorithms and inter-module communications within the transmitter. These software algorithms adapt the transmitter to environmental conditions or to any connected device
,
preventing poor RF operation or diminished audio quality.
Very compact size and condensed power Two rack units in height
,
with a weight of less than 14 kilograms (30.8 lbs)
,
unmatched power versus volume and power versus weight ratio.
Planar technology Exceptional stability
,
repeatability
,
reliability and ease of maintenance through the use of planar technology within the entire RF section (RF modules
,
combiners
,
splitter and low-pass filter). This allows for the minimization of internal connections and soldering
,
which increases the long term operation and performance.
Connected everywhere The remote control and management features allow users to receive data and send instructions to the transmitter via several state-of-the-art communication channels — SMS
Precise time alignment between analog FM and HD1
Automatic phase correction and RMS gain leveling
Insert in either the FM or HD Radio AES digital feed
Full Web interface for remote control
,
metering
,
etc.
SMS/email alarms for loss of signal and loss of audio
Extensive data logging with graphic display
Auto failover with relay bypass
Color
Black
specification
CONNECTIVITY
Receiver Input
75-ohm ‘F’ connector. Receiver tunes 87.5 to 107.9MHz in 200kHz steps. An RF input level of 50μV or more assures reliable operation.
AES Digital Audio I/O:AES3 (XLR) digital audio loop-through; 44.1kHz sampling rate
Network Interface: LAN (RJ45) connection to local network and through user’s router to Internet for full Web Interface remote control and monitoring.
PLACEMENT IN AIRCHAIN
In HD Radio AES Audio Feed:
Placed in line with the AES audio feed to the HD Radio exciter
,
the JUSTIN 808 will automatically correct diversity delay errors and r.m.s. level errors between the FM and HD1 programs
In Analog FM AES Audio Feed:
Placed in line with the AES audio feed to the analog FM stereo encoder
,
the JUSTIN 808 is capable of providing the entire diversity delay
,
if required. It will automatically correct diversity delay errors
,
but cannot normalize r.m.s. level errors between the two programs.
DELAY CORRECTION
Correction Resolution:
Corrects to ±1 sample (±23 μs)
Maximum Delay Error Correction:
16 seconds
Time Required to Correlate Delay Errors:
Small delay errors (up to 0.4 seconds) require up to 30 seconds to correlate; delay errors of 10 seconds could require as much as 3.5 minutes.
Time Required to Correct Delay Errors:
Correction rate is user-programmable between 1 and 1000 samples per second (23μs/sec to 23ms/sec).
“Catch-Up” Button Feature:
A front-panel menu item
,
also accessible via the Web Interface
,
permits a manual time alignment quick reset to a previous long-term mean value. This obviates correlation acquisition and brings time alignment close to the required figure.
AUDIO LEVEL & PHASE CORRECTION
The JUSTIN 808 offers automatic program phase correction when a phase reversal is sensed between the analog FM and digital HD1 program channels. R.M.S. level correction is also available when the JUSTIN 808 is placed in the AES digital audio feed to the HD Radio exciter.
ALARMS AND LOGGING
Alarm Conditions
1. RSSI (Low RF signal)
2. Audio Loss or Levels Out of Range
a. AES Loop-Through
b. Off-air FM Audio
c. Off-air HD1 Audio
3. Out of Alignment Range (user preset)
Alarm Indications:
1. Front-panel OLED display
2. Rear-panel ground-closure ‘tallies’ with selectable logic polarity
3. SMS-text/email notifications via SMTP
4. JUSTIN 808 Webpage indication
Alarm Logging:
All alarms are logged by the JUSTIN 808; statistics are presented graphically via the Web Interface and may be downloaded for follow-up study.
WEB INTERFACE
The JUSTIN 808 Web Interface is compatible with desktop/laptop computers
,
tablets and smart phones
,
and supports SNMP with a downloadable MIB file. All functions available at the front panel are duplicated by the Web Interface.
MISCELLANEOUS
Power Requirements:
105 – 130VAC or 210 – 260VAC
,
50/60Hz; 20 watts
Size and Weight:
1¾”H x 19”W x 9”D (1U); 10 lbs. (shipping weight)
Environmental:
0°C – 50°C operating temperature range; 95% noncondensing relative humidity; up to 3000 meters AMSL
Sonifex AVN-TB20AR
In stock
$ 4,191.51Original price was: $ 4,191.51.$ 4,004.44Current price is: $ 4,004.44.