BW Broadcast RBRX1 User manual

RBRX1
Re-BROADCAST RECEIVER
TECHNICAL MANUAL V. 1.2
No part of this manual may be re-produced in any form without prior written permission from BW Broadcast. The
information and specifications contained in this document is subject to change at any time without notice.
©2012 BW Broadcast
www.bwbroadcast.com

Contents
I Introduction 8
1 The RBRX1 9
2 Warranty 10
3 Safety 12
4 Quick Start 15
4.1 FMRebroadcasting .................................... 15
4.2 Off-AirMonitoring...................................... 15
5 Connections 16
II Menu Structure 17
6 Menu Structure 18
III The Front Panel 24
7 Interface 25
7.1 Navigatingthemenu ................................... 25
7.2 Editingaparameter .................................... 25
7.3 Textfields........................................... 25
2

8 Metering and Status 26
8.1 Metering ........................................... 26
8.1.1 Mainscreen..................................... 26
8.1.2 Audio processing screen . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26
8.1.3 Radio Indicators screen . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27
8.1.4 AudioInputsscreen ................................ 27
8.1.5 StereoMPXscreen................................. 27
8.1.6 RDSscreen...................................... 27
8.2 Status............................................. 28
IV Remote Control 29
9 Ethernet Configuration 30
9.1 Dynamic IP address (DHCP) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30
9.2 StaticIPaddress ...................................... 30
10 Web remote 31
10.1Authentication ....................................... 31
10.2TheMeters.......................................... 31
10.3Configuration ........................................ 31
10.4Presets ............................................ 32
10.5FirmwareUpdate...................................... 32
10.6BackupAudio........................................ 32
11 Telnet Remote 34
12 Email 36
13 SNMP 37
3

14 Serial remote 38
14.1UsingHyperterminal .................................... 38
V Processing 40
15 Processing structure 41
16 Tuner 43
16.1IFFilter............................................. 43
16.1.1 Manual configuration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 43
16.1.2 Automatic configuration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 43
16.2StereoBlend......................................... 44
16.3HighCut ........................................... 45
16.4Softmute........................................... 46
16.5Miscellaneous........................................ 47
16.5.1Frequency...................................... 47
16.5.2De-emphasis .................................... 47
16.5.3Gain ......................................... 47
17 MPX generator 48
17.1Features ........................................... 48
17.1.1CompositeClipper................................. 48
17.1.2PilotProtectionfilter ................................ 48
17.1.3Levels......................................... 48
17.2 Setting up the MPX Generator . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 48
4

VI Features 49
18 Managing Presets 50
18.1LoadingPresets....................................... 50
18.2FactoryPresets ....................................... 50
18.2.1Clean......................................... 50
18.2.2Open......................................... 50
18.3EditingPresets........................................ 50
18.3.1 Comparing a Preset (Front panel only) . . . . . . . . . . . . . . . . . . . . . 51
18.4SavingaPreset ....................................... 51
18.4.1WiththeWebRemote............................... 51
18.4.2WiththeFrontPanel ................................ 51
18.5DownloadingaPreset................................... 52
18.5.1WiththeWebRemote............................... 52
18.6UploadingaPreset..................................... 52
18.6.1WiththeWebRemote............................... 52
19 Backup Audio 53
19.1Managingaudiofiles ................................... 53
19.2Playlist............................................. 53
19.3Triggeringplayback .................................... 53
20 Monitoring and Control 55
20.1Alarms/Outputs....................................... 55
20.2n-StageFallback ...................................... 56
20.2.1 Example 1: Single fall-back . . . . . . . . . . . . . . . . . . . . . . . . . . . . 56
20.2.2 Example 2: Double fall-back . . . . . . . . . . . . . . . . . . . . . . . . . . . 58
20.3Triggers/Inputs........................................ 60
5

21 Log 61
21.1LogtoFile .......................................... 61
21.2LogtoRS232......................................... 61
21.3UDPLogging......................................... 61
22 Scheduling 62
22.1Settingthetime....................................... 62
22.2 Creating a scheduling trigger . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 62
23 Security Code Lock 63
24 Software Update 64
24.1 Installing an update via the web remote . . . . . . . . . . . . . . . . . . . . . . . . 64
24.2 Checking that the update was successful . . . . . . . . . . . . . . . . . . . . . . . 64
VII Usage Cases 65
25 Re-broadcast Receiver 66
25.1 Re-broadcast including RDS pass-through . . . . . . . . . . . . . . . . . . . . . . . 66
25.2 Re-broadcast with local RDS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 66
25.3Withbackupaudio..................................... 67
25.3.1 In case of loss or change of PI code . . . . . . . . . . . . . . . . . . . . . . 67
25.3.2Incaseofsignalloss ................................ 67
25.3.3 In case of external trigger activation . . . . . . . . . . . . . . . . . . . . . . 67
25.4 Change frequency on trigger input . . . . . . . . . . . . . . . . . . . . . . . . . . . 67
26 Reference Receiver 69
6

27 Silence Detector with RDS Generation 70
27.1InputSwitching ....................................... 70
27.1.1 Re-broadcast in case of local downtime . . . . . . . . . . . . . . . . . . . 70
27.1.2 Backup audio in case of local downtime . . . . . . . . . . . . . . . . . . . 70
27.1.3 In case of digital in silence . . . . . . . . . . . . . . . . . . . . . . . . . . . . 70
27.1.4 In case of external trigger activation . . . . . . . . . . . . . . . . . . . . . . 71
VIII Specifications 72
28 Specifications 73
A Parameters 76
7

Part I
Introduction
8

1
The RBRX1
The RBRX1 is unique, totally unique.
Not until now has there been an analog FM receiver that works as you wanted it to.
Using digital signal processing technology the RBRX1 is able to receive signals clearer than
you ever thought possible. With its low distortion, great stereo separation, excellent signal
handling and signal processing of the weakest signals the RBRX1 is the market leading num-
ber one choice for FM reception.
The RBRX1 employs an image cancelling high dynamic range front end mixing system for on
channel to IF conversion. Together with the digital signal processed steep IF band filtering the
RBRX1 achieves excellent adjacent channel filtering, making it ideal for reception of distant
FM signals when located on a transmitter site.
The digital demodulator of the RBRX1 is ultimately configurable - providing the user with a
degree of flexibility unheard of in FM reception products. RF and audio bandwidths are at
the users control and with the adaptive control settings the receiver can be left to adjust
itself as necessary, keeping out the noise from your audio while keeping to the limits that you
have set. For the first time ever you are able to control the behaviour of the radio - you are
now the designer of your own product’s performance.
The RBRX1 has professional level balanced XLR connections for the analog and AES/EBU out-
puts. As well as recovering pristine audio the RBRX1 also decodes any transmitted RDS data.
For rebroadcast applications the RBRX1 provides digitally reconstructed MPX signals which
are available via back panel BNC connections. The recovered MPX signals are post pro-
cessed to ensure both amplitude and bandwidth levels are safe for rebroadcast. To help
further with rebroadcast transmissions the RBRX1 can mute the audio should an RDS PI code
not match that set on the unit, helping to prevent hijacking of the transmission. For ultimate
flexibility the RBRX1 can function as an RDS encoder, allowing RDS data to be changed or
inserted in the multiplex output.
The RBRX1 front panel control system is state of the art, with two organic LED displays, touch
sensitive buttons and a wheel for user input. If placed at a remote site and front panel control
not possible the built in web-server allows monitoring and control from anywhere in the world
using a web-browser.
The RBRX1 has a real time clock for time and day mode selection, back panel preset trigger
ports and more - each feature designed to make the unit flexible and easy to integrate into
any broadcast facility.
We know you love listening to radio; the RBRX1 loves radio like you do.
Have Fun.
9

2
Warranty
Please ensure the Warranty Registration process is completed upon receipt of this product.
To do so go to www.bwbroadcast.com/warranty with your product’s serial number to hand.
BW Broadcast warrants the mechanical and electronic components of this product to be
free of defects in material and workmanship for a period of two (2) years from the original
date of purchase, in accordance with the warranty regulations described below. If the prod-
uct shows any defects within the specified warranty period that are not due to normal wear
and tear and/or improper handling by the user, BW Broadcast shall, at its sole discretion, ei-
ther repair or replace the product. If the unit has a manufacturers fault within twenty eight
(28) days then BW Broadcast will pay the freight at their discretion.
If the warranty claim proves to be justified, the product will be returned to the user freight
prepaid. Warranty claims other than those indicated above are expressly excluded.
Return authorisation number: To obtain warranty service, the buyer (or his authorized dealer)
must call BW Broadcast during normal business hours BEFORE returning the product. All in-
quiries must be accompanied by a description of the problem. BW Broadcast will then issue
a return authorization number. Subsequently, the product must be returned in its original
shipping carton, together with the return authorization number to the address indicated by
BW Broadcast. Shipments without freight prepaid will not be accepted.
Warranty regulations: Warranty services will be furnished only if the product is accompanied
by a copy of the original retail dealer’s invoice. Any product deemed eligible for repair or
replacement by BW Broadcast under the terms of this warranty will be repaired or replaced
within 30 days of receipt of the product at BW Broadcast.
If the product needs to be modified or adapted in order to comply with applicable tech-
nical or safety standards on a national or local level, in any country which is not the coun-
try for which the product was originally developed and manufactured, this modification-
/adaptation shall not be considered a defect in materials or workmanship. The warranty
does not cover any such modification/adaptation, irrespective of whether it was carried out
properly or not. Under the terms of this warranty, BW Broadcast shall not be held responsible
for any cost resulting from such a modification/adaptation.
Free inspections and maintenance/repair work are expressly excluded from this warranty, in
particular, if caused by improper handling of the product by the user. This also applies to de-
fects caused by normal wear and tear, in particular, of faders, potentiometers, keys/buttons
and similar parts.
Damages/defects caused by the following conditions are not covered by this warranty: Mis-
use, neglect or failure to operate the unit in compliance with the instructions given in BW
Broadcast user or service manuals. Connection or operation of the unit in any way that
does not comply with the technical or safety regulations applicable in the country where
the product is used. Damages/defects caused by force majeure or any other condition that
10