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Personal PA

DSP FM Wideband Transmitter

Figure 6: T45 Typical Connections

A407

24VDC 0.75A

williamssound.com

Line / Mic In

Analog

Audio

Digital

Audio

Line Out

AES / EBU In

S/PDIF In RF 75

Ω Ant

Ethernet

bal

—

unbal

—

phantom

ANALOG AUDIO
LINE OUT (RCA)

ANALOG

LINE/MIC INPUT

(XLR OR 1/4”)

BALANCED,

UNBALANCED,

OR PHANTOM.

DIGITAL

LINE

INPUT

(RCA)

REMOTE
ANTENNA
CONNECTION
(RG-6 QS,F-CONN)

PPA T45

ANALOG MIXER OR AUDIO SYSTEM

AUDIO LINE IN (RCA)

ROUTER

ANALOG LINE

OUTPUT

(1/4” or XLR)

DIGITAL
LINE
INPUT
(XLR)
AES or EBU.

PPA T45NET ONLY

DEVICE OR MIXER WITH S/PDIF OUTPUT

DIGITAL LINE OUT (RCA)

DIGITAL MIXER

REMOTE
ANTENNA

STANDARD CAT5 ETHERNET CABLE (RJ-45)

MICROPHONE
(CONDENSER
OR OTHER)

ANALOG MIXER

DIGITAL LINE

OUTPUT

(XLR)

AES or EBU.

COMPUTER
OR
ETHERNET
SWITCH

INTERNET
MODEM

STANDARD

CAT5

ETHERNET

CABLES

(RJ-45)

TO AC
POWER
SOURCE

STANDARD CAT5 ETHERNET CABLE (RJ-45)

LAPTOP (OR DESKTOP)

COMPUTER

SUPPLIED
ANTENNA

EITHER
BUT
NOT
BOTH

Connecting the T45 to other Devices

The

Analog LINE/MIC Input

jack can be used with standard pro audio electronics such as standard pro audio line level,

condenser microphones up to 15v or an analog line output from a mixer. The combination jack accepts either XLR or 1/4” (TRS).
This source

must be configured in the menu

before plugging the source into the jack.

The

RCA Audio Line Output

jack can be used for monitoring, recording, or routing processed audio to another sound system.

The

XLR Digital Line Input

can be used with the output of a digital mixer or digital audio source. The processors inside the T45

convert the digital bitstream into usable audio.

The

RCA S/PDIF Digital Line Input

jack can be used with a device that has an RCA Digital Audio Out (also referred to as “Coaxial

Digital Audio” from consumer electronic devices. The processors inside the T45 convert the digital bitstream into usable audio.

The

Remote Antenna Connection

can be used to connect a remote antenna to the T45 when the whip antenna won’t be used

(as in the case of rack-mounting). See the Williams Sound Antenna Guide for a full range of antenna and mounting options (see
Figure 5).

The

Ethernet Jack

(PPA T45NET only) can be used to connect the T45NET to either (1) a local network or (2) directly to a single

computer. Both options can use either a

standard Ethernet cable

or a

crossover cable

. A crossover cable can be used, but is

not

required

to connect the T45 directly to a computer, because an internal MUX senses the device that is connected and crosses the

pins automatically.

Содержание PPA T45

Страница 1: ...PPA T45NET PPA T45 Personal PA DSP FM Wideband Transmitter USERManual Transmitter Models PPA T45NET and PPA T45 Optional Receiver Models PPA R38 PPA R37 PPA R35 8 PPA R1600 MAN 176C PRINTED IN THE U S A ...

Страница 2: ...onnecting the T45 to other Devices 10 Figure 6 T45 Typical Connections 10 Controls Features 11 Figure 7 PPA T45 Front View 11 Power Button 11 OLED Display 11 Audio Input Level Indicator 11 Input Overload Indication 11 RF Indicator On Air 11 Hot Buttons Menu Controls 11 Headphone Jack 12 Main Info Screen and Screen Navigation 12 Lock Unlock Settings 12 Figure 8 Main Info Screen 12 Figure 9 Navigati...

Страница 3: ... Ethernet Devices Laptop or Desktop PC 26 Figure 15 Williams Sound Device Discoverer Tool optional 27 Network Setup for Wireless Devices iPad Android Tablet or Smart Phone 28 Figure 16 Williams Sound Device Discoverer Tool 28 Web Control Interface 30 Figure 17 Main Login Page and Ethernet Communication Status 30 Figure 18 Home Page 31 Figure 19 Audio Settings Page 32 Figure 20 RF Settings Page 33 ...

Страница 4: ...41 Noise or Distortion in the Audio 41 Noise in audio grows when program is silent 41 Reception difficulties 41 No Reception 41 Insufficient range good reception near transmitter poor at a distance 41 Users must turn receiver volume controls way up to 4 or 5 to get enough volume 42 Users complain of too much noise during soft audio Dynamic range of music reduced too greatly 42 Buzz in other equipm...

Страница 5: ...5 Personal PA DSP FM Wideband Transmitter This page intentionally left blank ...

Страница 6: ...zed for the needs of hearing impaired persons and is easily integrated with your existing sound system The PPA T45 can also be used with a microphone as a stand alone system Your PPA T45 transmitter operates just like an FM radio station The transmitter takes audio directly from a microphone or sound system This audio is then broadcast over an FM radio signal FM radios can be worn by listeners or ...

Страница 7: ...he T45 transmitter will accept the following audio sources 1 Balanced Microphone on a 3 pin XLR connector without phantom power 2 Balanced Microphone with 12 volt phantom power DIN 45596 on a 3 pin XLR connector 3 Balanced Unbalanced microphone with or without phantom power on 1 4 inch TRS jack 4 Balanced Unbalanced Line on a 3 pin XLR connector 5 Balanced Unbalanced Line on 1 4 inch TRS jack 6 Di...

Страница 8: ...s we recommend following these general guidelines The PPA T45 transmits audio with excellent fidelity Therefore the audio source signal should be of the highest audio quality and not subject to a compressor limiter reverberation or other signal processing equipment The T45 has a very effective DSP audio processor If compression is desired in the audio refer to the Compression section under Audio S...

Страница 9: ...Whip Antenna Gently thread the ANT 025 onto the stud recessed in the hole on the top of the transmitter See Figure 5 Figure 5 Installing the ANT 025 Antenna rear view ANT 025 ANTENNA INCLUDED REMOTE ANTENNA COAXIAL JACK FOR 75 Ohm ANTENNAS See note below A410 24VD C0 75A williamssound com Line MicIn Analog Audio Digital Audio LineOut AES EBUIn S PDIFIn RF75ΩAnt Ethernet bal unbal phantom NOTE If t...

Страница 10: ...xer The combination jack accepts either XLR or 1 4 TRS This source must be configured in the menu before plugging the source into the jack The RCA Audio Line Output jack can be used for monitoring recording or routing processed audio to another sound system The XLR Digital Line Input can be used with the output of a digital mixer or digital audio source The processors inside the T45 convert the di...

Страница 11: ...when the 0dB LED lights up often and the 9dB only lights occasionally Use the Audio Level settings in the menu to set the audio levels Figure 7 Input Overload Indication The OLED Display shows an overload warning screen each time the audio signal exceeds the capacity of the input circuit Either 1 the source of the audio coming in to the T45 needs to be adjusted to correct this or 2 the Audio Input...

Страница 12: ... T45NET only Audio Source Audio Application Preset Audio Input Gain Setting and Locked The lock symbol indicates that the front panel buttons are locked which prevents any functions from being accidentally changed If the front panel menu has been locked the display will show the lock symbol otherwise this area will be blank Figure 8 If the T45NET is connected to a network or a PC the network link ...

Страница 13: ...ill change to show Audio Settings Use the forward button to display Audio Source in the selection box Push the down v button twice to show Audio Presets Now press the button to display the list of Presets Use the and v buttons to alternate between Hearing Assist Music Voice and Custom selections When the desired Audio Preset is displayed it is active so press the Menu button to exit the menu or if...

Страница 14: ...es 10 11 12 To enter the menu push the Menu button Then use the Forward and Down v buttons to navigate deeper into the menu When a setting is reached the display will change to show an up and down caret v around the setting Use the Up and Down v buttons to change the setting Note that nearly all settings change live they do not need to be selected with another button The setting displayed in the s...

Страница 15: ...FERENCES DESCRIPTION SECOND CHARACTER LAST CHARACTER A406 Scroll up down A to Z Scroll up down A to Z MEDIUM LOW OFF 30 MIN 4 HRS ALWAYS ON FREQUENCY CHANNEL NUMBER 17 CHANNEL 8 CHANNEL 10 MIN 30 MIN RESTORE DEFAULTS 2 HRS Scroll up down A to Z YES FIRST CHARACTER NO ADD ON MODULE New Description Saved ALWAYS ON Figure 11 Front screen Menu Tree continued ...

Страница 16: ...ustment is automatically made to the Low Pass Filter High Pass Filter and Compression Refer to the chart below Figure 13 for a comparison of the Audio Preset configurations RF Output Full Power Parameters Hearing Assist Music Voice Low Pass Filter 8 0 kHz 16 kHz 6 3 kHz High Pass Filter 500 Hz 31 Hz 125 Hz Compression Ratio 2 1 1 1 1 1 Figure 12 Front screen Menu Tree continued The Add on module a...

Страница 17: ...and hearing assistance applications for a listener who has difficulty hearing the quiet sounds of an audio broadcast compression boosts the quiet sounds to louder listening levels For listening to music programs concerts etc lower compression ratios or no compression is generally used The T45 has three selectable modes of compression 1 1 compression off 1 5 1 low compression or 2 1 high compressio...

Страница 18: ...cy Each time the or v button is pressed the cutoff frequency will be changed by 1 2 octave This can be repeated until the cutoff frequency reaches the minimum at 3 5 KHz or maximum at 16 KHz Note that the setting changes live it does not need to be selected with another button The setting displayed in the selection box is the one that is active 12 When the desired settings have been changed press ...

Страница 19: ...on the screen 3 Press the v button repeatedly until HEADPHONE SOURCE is displayed in the selection box 4 Press the button to access the Headphone Sources The currently selected source will be shown in the selection box 5 Press the or v menu buttons to select either INPUT or TRANSMITTED audio If a Digital Source is being transmitted the only selection possible for the headphone is transmitted audio...

Страница 20: ...n info screen Note The T45 is shipped from the factory with the frequency pre set to Channel 1 72 1 MHz Figure 14 Channel Frequency Selection Chart T45 Ch Letter Freq MHz R35 8 Ch 1 A 72 1 1 2 B 72 3 2 3 O 72 6 3 4 P 72 8 4 5 I 74 7 5 6 R 75 4 6 7 G 75 7 7 8 H 75 9 8 9 C 72 5 10 K 72 2 11 N 72 4 12 D 72 7 13 E 72 9 14 J 75 3 15 S 75 6 16 T 75 8 17 F 75 5 A376 A425 Up to 8 channels can be used simu...

Страница 21: ...l show AUDIO SETTINGS in the selection box 2 Press the v button to display RF SETTINGS in the selection box 3 Press the button to display RF CHANNEL in the selection box 4 Press the v repeatedly until RF TIME OUT is displayed in the selection box 5 Press the button to access the RF TIme Out Setting The currently selected time out delay will be shown in the selection box 6 Press the or v buttons to...

Страница 22: ...e setting displayed in the selection box is the one that is active 7 When the desired channel mode is selected press the Menu button to exit the menu and return to the main info screen 3c Screen Time Out The Screen Time Out setting determines how long the transmitter displays the screen saver The transmitter waits for 10 minutes after no activity front panel button pushes then displays the screen ...

Страница 23: ...the button to hightlight CLEAR ALL then push the v button to clear the characters When finished editing the screen will return to the description you just entered so you can check it At this point the description is active 12 Press the Menu button to exit the menu and return to the main info screen 3e Restore Defaults The Restore Defaults action will restore the transmitter to it s original factor...

Страница 24: ...ed in the selection box 3 Press the button to access the Add On Module settings 4 Press the v button repeatedly until NETWORK SETTINGS is displayed in the selection box 5 Press the button to access the Network Settings 6 The selection box will have IP ADDRESS MODE selected Press the button to highlight the IP ADDRESS MODE screen The current mode static or dynamic will be highlighted in the selecti...

Страница 25: ...dule settings 4 Press the v button repeatedly until ADMIN is displayed in the selection box 5 Press the button to access the Admin setting NETWORK LOG IN will be shown in the selection box 6 Press the button to access the Network Log In Reset Password Screen 7 Press the or v buttons to change the setting to NO or YES If YES a confirmation screen comes up warning that remotely connected users may h...

Страница 26: ...he last number will be the number you determine for the T45 i e 100 making the IP address for the T45 192 168 1 100 When you determine this address remember or write it down You will need it for a later step 3 Set the Static IP Address for the T45 by using the controls on the front of the T45 a Enter the IP Address you determined in step 2 When entering saving the new address the T45 will automati...

Страница 27: ...vorite link to the T45 just like you would for a favorite website a If you can t make a link you can always go back to the IP address step 5 by going into the website history or typing in the first few numbers of the address i e 192 168 into the address bar and it should see the link you recently visited This method is cumbersome which is why a favorite link is suggested Note The procedure outline...

Страница 28: ... the same subnet as the router d For example if the router s address is 192 168 1 1 the first three sets of numbers will be the same i e 192 168 1 and the last number will be the number you determine for the T45 i e 100 making your IP address for the T45 192 168 1 100 When you determine this address remember or write it down You will need it for a later step 3 Set the Static IP Address for the T45...

Страница 29: ... in verify control of the T45 by changing a setting using the wireless device and watching it change on the T45 display a An easy setting to verify is changing the channel see Figure 20 9 For easy access next time build a favorite link to the T45 just like you would for a favorite website a If you can t make a link you can always go back to the IP address step 7 by going into the website history o...

Страница 30: ...thernet Communication Status The Password is stored inside the T45 The User name is admin and the default password is admin The user name is not changeable but the password can and should be changed on the web Admin page Log In Screen First screen seen on connect Click on Log In to bring up the authentication window Authentication Window User Name admin Default Password admin Once logged in this R...

Страница 31: ... new event logging session begins A417 Audio Level Monitor Front Panel Display live Self Tests pass only if browser is communicating with the T45 RF Power Level and Status Log Out Button appears on all pages Transmitter Name not user changeable Transmitter Description changeable through web interface and front panel Audio Level Monitor On Off Click here to display Event Log Event Log Click on PPA ...

Страница 32: ...ut Jack Select includes internal Tone Generator as a selection Audio Level Monitor update speed may vary and may be delayed when compared with the front panel LEDs Audio Input Gain Adjust goal is to have audio peaking around 0dB Audio Configuration Presets numbers will change but will be shaded out below for Voice Music and Hearing Assist Presets Custom Audio Preset Configuration becomes adjustabl...

Страница 33: ... are pressed Log Out Button available on every page Figure 21 Preferences Page The Prefs page displays user preferences that can be tailored to each T45 application A420 Changes what appears as large or small on the front display and what appears first on the web interface channel frequency pull down list Change the Description Field here The Description field appears on the front panel of the T45...

Страница 34: ... be used to help with non technical T45 users or for remote site troubleshooting purposes A422 Locks the Front Panel buttons preventing unauthorized changes Same as front panel settings lock Change Password here User Name is fixed and cannot be changed Reboots T45 and will reconnect when finished If available updates to the Web Interface can be downloaded saved on PC and implemented this is a BIN ...

Страница 35: ...batteries Do not attempt to recharge alkaline batteries which may explode release dangerous chemicals cause burns or other serious harm to the user or product Pacemaker Safety CAUTION 1 Before using this product with a pacemaker or other medical device consult your physician or the manufacturer of your pacemaker or other medical device 2 If you have a pacemaker or other medical device make sure th...

Страница 36: ...illiams Sound charger make sure the Alkaline NiMH switch inside the battery compartment is set to NiMH before charging Figure 23 2 Insert the headphone earphone or neckloop into the headphone jack 3 Turn receiver on with a push and hold of the power button The power button will illuminate and the display will turn on 4 Press the Menu button once to see the Channel set screen To seek an active tran...

Страница 37: ...annel seek button presses 6 For more information about the R37 receiver refer to the PPA R37 User Manual You can download any of the receiver manuals from our website at www williamssound com Figure 25 Battery and channel selections ALKALINE NiMH SWITCH CHANNEL SEEK BUTTON AA AA Channel Seek A117 Wideband FM Receivers continued Receiver Model PPA R37 PPA R37 is a 17 channel receiver operating on t...

Страница 38: ...nd com Connecting Earphones Headphones Plug the earphone headphone into the headphone jack on the top of the unit The PPA R35 8 only works with monophonic earphones If stereo headphones are used sound will be heard only in one side The PPA R38 and PPA R37 will work properly with stereo or mono headphones Williams Sound evaluates each earphone and headphone used with the PPA R38 PPA R37 and PPA R35...

Страница 39: ...emove Turn the belt clip 180º so the edge points toward the top of the unit as shown in Figure 27 Gently pull the belt clip away from the unit to remove Figure 27 Belt Clip Installation and Removal A119 Earpad Cleaning for Earphones and Headphones Do not immerse the earphone in water or other cleaning agent Foam pads may be removed and washed with a mild laundry soap solution rinsed thoroughly and...

Страница 40: ...teries The indicator light may remain on even with batteries that are weak Do not leave dead batteries in the receivers The chart below shows typical battery life with Williams Sound s 72 76 MHz receivers IMPORTANT WARNINGS DO NOT ATTEMPT TO RECHARGE ZINC CARBON HEAVY DUTY ALKALINE OR LITHIUM BATTERIES DO NOT ATTEMPT TO RECHARGE DISPOSAB BATTERIES These batteries may heat up and explode causing po...

Страница 41: ...justed See Figure 7 Audio Input Level hot buttons Check for ground loops or noise on the input signal See Figure 4 for more information If you are still having trouble call your Authorized Williams Sound dealer or representative Noise in audio grows when program is silent The Audio Level Control may be set too high You re probably also seeing the 6 level indicator lighting all the time To correct ...

Страница 42: ...io Dynamic range of music reduced too greatly The Audio Level control may be set too high This problem is more likely to occur in 2 1 or 1 5 1 Compression modes but can also occur in 1 1 Compression mode To reduce the noise adjust the Audio Level carefully noting the Level Indicator The 6 LED should light occasionally The transmitter could be set for High Compression 2 1 when Reduced Compression 1...

Страница 43: ...connections make sure the T45 Ethernet cable is plugged into one of the LAN ports on the router not the WAN port Re seat unplug and plug back in firmly all Ethernet cables in the path between the computer and the T45 If you find one that was loose plug it in if none are loose you could also replace Ethernet cables and go back to step 4 Keep repeating this process until the T45 pings successfully I...

Страница 44: ...re now connected to and controlling the T45 8 If step 7 didn t work try re booting in this order 1 the router 2 the computer and 3 the T45 turn it off for 10 sec then turn it back on Wait at least two full minutes for the T45 to re establish itself on the network Then try pinging it again go back to step 5 9 If you can make changes to the T45 initially but then lose that ability get disconnected y...

Страница 45: ...tion Frequency Channel mode Audio Input Source Microphone Line Phantom Digital AES EB Digital S PDIF High Pass Filter Low Pass Filter Compression RF Output Power Screen Saver Delay Test Tone 400 Hz Headphone Volume Headphone Source RF Section Operating Frequencies 72 1 75 9 MHz 17 wideband channels selectable Frequency Accuracy 2 ppm stability 0 50 C Deviation 75 kHz maximum Pre Emphasis 75 µsec R...

Страница 46: ... by turning the equipment off and on the user is encour aged to try to correct the interference by one or more of the following measures Reorient or relocate the receiving antenna Increase the separation between the equipment and the receiver Connect the equipment into an outlet on a circuit different from that to which the receiver is connected Consult the dealer or an experienced radio TV techni...

Страница 47: ...with squelch defeated Input Overload 100 mV Frequency Response 200 Hz 15 kHz 3dB Modulation FM 75 kHz peak deviation Signal to Noise Ratio Minimum 65 dB 100 µV Receive Antenna Integral with earphone headphone cord Audio Output 35 mW max at 16 Ω Headphone Connector 3 5 mm stereo jack mono output for stereo or mono earphones headphones Earphone Stereo earbud type with foam cushion 3 5 mm plug 32 Ω P...

Страница 48: ...utput Connector 3 5 mm mono phone jack Squelch Located inside battery door Factory set for 25 dB S N Squelch may be set with JFD 7104 5 from Sprague Goodman or any flat tipped tuning tool with tip size 0 095 X 0 016 Notes The R35 8 is NOT field tunable the eight channels have been carefully selected to inhibit inter modulation interference Approvals FCC Industry Canada RoHS WEEE Warranty Lifetime ...

Страница 49: ...t Overload 100 mV Frequency Response 200 15 kHz Modulation FM 75 kHz peak deviation Signal to Noise Ratio 65 dB min 100 uV Receive Antenna Integral with earphone headphone cord Audio Output 35 mW max peak into 16 ohms Output Connector 3 5 mm stereo mono phone jack Earphone Earbud type with foam cushion 3 5 mm plug 32 Ω Auto Shut off Enters sleep mode after approx 6 mins of no RF signal Approvals F...

Страница 50: ...or if the product has been repaired or modified by anyone other than a factory authorized service technician Warranty does not cover normal wear and tear on the product or any other physical damage unless the damage was the result of a manufacturing defect Williams Sound is not liable for consequential damages due to any failure of equipment to perform as intended Williams Sound shall bear no resp...

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