Contemporary Research 232-ATSC 4K User manual

972.931.2728 | 888.972.2728 | www.contemporaryresearch.com

Contents
Overview .................................................................................................................................................................. 2
Setup ........................................................................................................................................................................ 3
Front-Panel Buon Sequences ................................................................................................................................. 4
Setup Notes.............................................................................................................................................................. 4
Web Pages ................................................................................................................................................................ 5
HD2-RC IR Remote.................................................................................................................................................... 6
RS-232/Telnet/UDP Control Protocol ....................................................................................................................... 7
Control Commands................................................................................................................................................... 8
HD2-RC Remote Emulaon.....................................................................................................................................10
Response Strings .................................................................................................................................................... 11
RS-232 Cable Connecons ......................................................................................................................................12
On-Screen Menus................................................................................................................................................... 13
Specicaons.......................................................................................................................................................... 18
RKU Universal Rack Mount Kit................................................................................................................................ 20
Safety Instrucons and Warranty........................................................................................................................... 21

Page 2 232-ATSC 4K User Manual 082018
Overview
The 232-ATSC 4K HDTV Tuner, our 5th-generaon ATSC HDTV tuner, adds new capabilies to the industry-standard 232-ATSC series. New features include tuning
H.264 programs up to 1080p and output scaling up to 4K. The new tuner is fully compable with control commands for previous models.
The integrator-friendly HDTV tuner is controllable with 2-way RS-232, IP Telnet and UDP, as well as wireless and wired IR commands. An onboard Web page
enables remote Web control. A new menu-driven display simplies setup.
A full-featured, commercial grade HDTV tuner, the 232-ATSC 4K can receive both analog and digital MPEG-2/H.264 channels, in ATSC, NTSC, and clear QAM
formats. Using an oponal RF-AB switch, the tuner can switch between antenna and cable feeds.
• Tunes analog and digital channels in ATSC, NTSC, and clear QAM formats
• Accepts H.264 TV channels, as well as standard MPEG-2
• Scales video output from 480i to 2160p
• 1080p and 2160p set to 60Hz for more universal applicaons, 1080i and 720p can be set to 60 or 59.94Hz
• Simultaneous output from HDMI and composite video ports, as well as analog stereo, and digital coax and TOSlink opcal audio ports
• Switches to RGBHV or Component output from front-panel sengs, Web page, or control commands
• AC-3 or PCM/Variable PCM digital audio formats for digital audio ports and HDMI
• Auto or manual DVI compability
• Front-panel text and on-screen menus for tuner setup
• Web pages for remote setup and control
• Supports dual Air/Cable tuning with oponal RF-AB switch
• Analog and digital closed caponing
• Internal scaler displays channels at selected resoluon
• Rack-mountable two across in 1RU
• Full ASCII 2-way RS-232/Telnet commands
• RS-232 can be daisy-chained to control up to 9 tuners from a single RS-232 port
• Meets RoHS and California energy-saving standards
• Includes RKU universal rack mount kit, HD2-RC IR remote, and PS12-1.5 VDC power supply
• Opons for single and dual rack mounts, external RF-AB switch, and a PS-8-4Y 8A power supply that can power up to 4 tuners in lieu of individual
power supplies at me of order

Page 3 232-ATSC 4K User Manual 082018
Setup
There are 3 ways available to change the sengs:
• Front Panel
o Press the red SETUP buon to access the front-panel menus
o Press the Le/Right arrows to step through each menu
o Press the Up/Down arrows to view the sengs
o Press the Le/Right arrows to step through the seng opons
o Click SELECT to save the changes for each menu
• Menu or IR
o Use the included IR remote to turn on/o, access on-screen menus, and scan for channels
o Press the blue MENU buon on the front panel to access the on-screen menus
o Use the Up/Down and SELECT buons to navigate the menus
o Press the blue MENU buon to exit the on-screen menu
• Ethernet
o Open and Internet browser and type in the tuner’s IP address in the address bar to access the onboard Web pages for Control and Setup
o If needed, press and hold SETUP to see the current IP address
A/V Setup
Factory Defaults are shown in Bold.
HD Output
Select RGBHV or YPbPr for analog HD output. This also sets color space for HDMI.
HDMI and analog HD video outputs are always active.
HD Res Sets the output resolution from 480i to 2160p or Auto (Native resolution).
Tune Mode Select CATV | Air | IRC | HRC | CATV Auto
RefreshRate 59.94 | 60 Hz for 1080i and 720p 1080p and 2160p are fixed at 60 Hz.
Digital Audio PCM | PCM Variable | AC-3
Captions On | Off
ACap Mode CC1 | CC2 | CC3 | CC4 | Text1 | Text2 | Text3 | Text4
Dcap Mode Service 1 | Service 2 | Service 3 | Service 4 | Service 5 | Service 6
Scan Mode
Analog+Digital standard full scan
Digital–Delete Analog scan for digital, delete any analog channels
Digital–Keep Analog scan for digital, but keep all analog channels
Analog–Delete Digital scan for analog, delete any digital channels
Analog–Keep Digital scan for analog, but keep all digital channels
Channel Scan
Press SELECT to start scanning. No LCD text or feedback will be displayed to confirm that the scanning
is in progress. The on-screen menu will display a list of channels as they are found. The tuner scans analog
channels first, then digital.
Press SELECT to skip the analog scan.
Overscan 0–9
Selects percentage of overscan for video output.
HDMI-DVI Auto | HDMI | DVI DVI does not hot-patch, may need to reboot tuner in DVI mode.
HDMI Audio On | Off
AC3 Cmpr Line | RF Compression mode for AC-3 downmix to stereo (RF enhances dialog).
System Setup
Baud Rate 1200 | 2400 | 4800 | 9600 | 19200 | 38400 | 115K | 230K
Unit Number 1–9 For RS-232 daisy chain operation.
Panel Lockout None | Ch+Menu | Vol+Menu | Ch+Vol+Menu | Power | Setup | Menu | All | Setup+Menu | Pwr+Setup+Menu
Backlight 1–10
LCD Contrast 1–10
IR Receive IR On | IR Off
Firmware
Right or Left arrow scrolls through firmware versions and displays power supply voltage.
Example:
232-ATSC 4K_V1.04a — Control Firmware
BL Ver V0.11C — Bootloader Firmware
HD Version 7.08 — HD Firmware
Volt in = 11.8
Network Setup
IP Address 192.168.1.231
IP Mode Static | DHCP IP address, gateway, and subnet cannot be changed in DHCP mode.
IP Gateway 192.168.1.0
Subnet Mask 255.255.255.0
IP Port 23 Telnet port
MAC/SN 00:14:C8:14:xx:xx
UDP Reply On | Off

Page 4 232-ATSC 4K User Manual 082018
Front-Panel Buon Sequences
Air/Cable Tuning
Pressing the Up and Down keys toggles air/cable tuning.
Audio Mute
Pressing the Le and Right keys toggles mute on/o.
Unlock Front-Panel
If the Setup key is locked out, pressing Setup and the Right key will unlock setup unl the tuner resets, and turns the tuner on if it is o (even if the Power
buon is locked).
Factory Reset
Press Power and Up together when at the System: Firmware menu to reset to the default sengs.
Display IP Address
Hold Setup to display the IP address.
Setup Notes
Tuning Cable Channels
The 232-ATSC 4K will skip encrypted channels automacally when a channel scan is iniated. Scanning analog channels may be skipped by pressing SELECT
aer the scan has started. Typically, the digital channels will not use the same Guide numbers as a cable box.
RGB/Component Video
Analog HD output is available on either the RGBHV (VGA) or Component jacks. Use the front-panel menu to select the desired output mode. When selected,
YPbPr is also available on the HD15 connector.
DVI
DVI compability is normally supported. Forced DVI may be manually selected from the HDMI-DVI menu. DVI does not hot-patch, so the tuner may need to
be rebooted aer DVI mode is selected.
Audio
The volume sengs do not aect digital audio in AC-3 or PCM modes. PCM Variable supports volume control. The analog audio outputs always follow the
volume sengs. If there is no audio, make sure the volume is all the way up (and not muted). A “motorboat” sound means the display does not support AC-3,
and the mode should be changed to PCM.
IR Control
• Interference from room uorescent lights can cause problems with IR remote operaon. If this occurs, the frequency of the IR can be changed. Hold
Select on the remote and press “9” to set the IR frequency at 57 KHz. Hold Select and press “4” to set the IR to the normal 38 KHz frequency.
• Check the front-panel menu to see if IR Receive is turned on or o.
• If there is signicant IR interference, an IR-RXC Remote Sensor may be required. Cover the front-panel IR sensor to reduce interference.
Caponing
Line 21 caponing data is available on the Composite video output. If the tuner is feeding a digital encoder or encoder/modulator, use Composite video to
send caponing data. On-screen caponing may be enabled from the on-screen menu, IR remote, or RS-232 commands.

Page 5
232-ATSC 4K User Manual 082018
Web Pages
Control Page Sengs Page
The 232-ATSC 4K includes Web pages accessible by any browser over IP. Open a web browser and type in the tuner’s IP address in the address bar. The tuner’s
IP address may be found by holding down the SETUP buon. The Control Page features a full array of control opons with interacve status feedback, including
channel name, program name, and the nave resoluon of the program. The Sengs Page can change any aspects of tuner setup and operaon. The name of
the tuner can be changed by clicking on the name at the top of the page.

Page 6 232-ATSC 4K User Manual 082018
HD2-RC IR Remote
The HD2-RC IR Remote included with the 232-ATSC 4K can be used to setup the tuner and for daily operaon. All of the funcons on the remote have equiva-
lent commands in RS-232, Ethernet, and Wired IR formats. In addion, the 232-ATSC 4K front panel buons are available for Power, Channel, Volume, Menu,
and Select. The tuner will display a “^” symbol in the upper right corner of the front panel display when an IR command is received.
Power
Turns the tuner on and o.
Volume Control
Use the Vol+, Vol- and Mute buons to control the volume.
Channel Selecon
Two-part digital channels are accessed using XX-1 (or -2, -3, etc.).
Single-part digital and analog channels are accessed using XX.
Ch+, Ch- and PrevCh can be used to access and recall channels.
Menu Operaon
Press Menu to access the on-screen menus.
• Use the direconal Arrows, Select and Exit to navigate the menus.
• List brings up the Favorite Channels menu.
• Exit closes the on-screen menu.
• Menu reverts to the previous menu or closes the on-screen menu from the Main Menu.
• Enter selects the menu choice.
Special Funcons
• CC steps through available closed-caponing opons.
• Audio selects audio and SAP modes.
• Signal displays channel signal level.
• Rao steps through aspect raos opons.
• Info launches the on-screen informaon window.
• A/C selects Air or Cable tuning.
• Fav displays a list of favorite channels.
• Guide displays the on-screen guide. When the guide is displayed, pressing Info displays the
program descripon.
Features of many of the Special Funcon commands depend on whether the current channel is
analog or digital.
Hold the Select buon and press “9” to set the IR frequency to 57 KHz. Hold the Select buon
and press “4” to set the IR to the normal 38 KHz frequency.

Page 7
232-ATSC 4K User Manual 082018
RS-232/Telnet/UDP Control Protocol
The 232-ATSC 4K full duplex RS-232/Telnet protocol enables a system programmer to control all TV Tuner funcons as well as monitor TV Tuner status. All
commands are sent as ASCII strings. No delays between characters or commands are required, as data is interrupt driven and buered.
Up to 9 232-ATSC 4K units may be cabled together and addressed for individual control from a single RS-232 port. Each 232-ATSC 4K is assigned a unique unit
number.
Communicaons parameters are 1200 to 230,400 baud, 8 data bits, No parity, and 1 stop bit. Factory default is 9600 baud. All sengs are saved to NVRAM in
the 232-ATSC 4K tuner. The tuner will accept non-standard RS-232 control such as voltage that swings from 0 to +5 VDC, commonly found when IR ports are
used to send RS-232 commands.
The same commands can be sent over IP Telnet (up to two sessions) and via UDP to the tuner’s IP address to port 31931 (xed) with status feedback on port
31932. Port 31932 is disabled by default, send “>UO” command (UF turns UDP status feedback o) or set with front-panel menu. See our Support Blog Tesng
232-ATSC Series UDP Control to learn more about UDP control.
General Protocol Specicaons
Characters in command strings to the 232-ATSC 4K are common ASCII keyboard characters.
Command strings sent to the 232-ATSC 4K begin with the ASCII > (greater than symbol) as an ‘Aenon’ character and end with carriage return - ASCII CR, Hex
$0D, or keyboard Enter - as an ‘End-of-command’ character.
Responses from the 232-ATSC 4K begin with the ASCII < (less than symbol) as an ‘Aenon’ character and end with a carriage return followed by a line feed -
ASCII LF or Hex $0A as an ‘End-of-command’ character.
A carriage return is required at the end of each command and is assumed in all examples.
Command String Structure
[Aenon] (Unit#) [Command] (Parameters) [Return]
Aenon Single character (>) starts the string
Unit# The Unit# is expressed as an ASCII 0-9 when used in mulple tuner applicaons.
To address all units, use a Unit # of 0 (Zero)
No unit number will default to Unit#1
Command A two-character command
Parameters Added aributes to some commands
Return A carriage return ends the command string. ASCII CR, Hex $0D, or keyboard ‘Enter’ may be used in programming. For simplicity, the pro-
gramming examples in the manual will not show the ‘CR’.
Command and Status Response
Commands can be sent back-to-back at any me without any delay. To allow for rapid, mulple commands, status responses are intenonally delayed by
about 125mS, sending the most current status in response to control commands or user acons.

Page 8 232-ATSC 4K User Manual 082018
Code Function Operation
S4= Setfrontpanellockoutmode 0=None6=Menu
1=Ch+Menu7=All
2=Vol+Menu8=Setup+Menu
3=Ch+Vol+Menu9=Pwr+Setup+Menu
4=Power
5=SetupPressSelect andRight keytounlocktemporarily.
Q5= SetIRReceivemode 0=IRdisabled1=IRenabled
P1 PowerOn On
P0 PowerOff Standby,mutesaudioandvideo
PT PowerOff/On Powertoggle
TC= Selectchannel Tunesanaloganddigitalchannels,leadingzerosOK,upto4
charactersforanalogorsingle‐partdigitalchannel,3characters
formajorandminorchannels.
Examples:
'>TC=28:1','>TC=28‐1'Selectsdigitalchannel28‐1
'>TC=32'Selectsdigitalchannel32,analogchannel32ifnodigital
'>TC=32‐0'Selectsanalogchannel32
TUTunechannelup Selectsnexthigherchannelinchannellist
.
Example:'>3TU'Unit#3incrementedtonexthighestchannel
TD Tunechanneldown Selectsnextlowerchannelinchannellist.
TP Previouschannel Selectspreviouslyviewedchannel.
T^ Startchannelscan Initiatesnewchannelscanforanaloganddigitalchannels,
scanoperationsetbyD0andS0.
S0= TuningFormat 0=CATV—SwitchestoCable,setstostandardchannelspacing
1=Off‐Air—SwitchestoAirinputandchannelspacing
2=IRC—SwitchestoCable,setstoIRCchannelspacing
3=HRC—SwitchestoCable,setstoHRCchannelspacing
4=CableAuto—SwitchestoCable,
setschannelspacingautomatically
AscanmustbetriggeredbyT^orfrontpanelfollowingaS0command.
D0= SetChannelScanMode SetsscanmodefordigitalandanalogchannelsfromtheT^or
frontpanelscancommand.
0=Scansforanaloganddigitalchannels
1=Scansfordigitalonly,deletesanalogchannels
2=Scansfordigitalonly,keepsanalogchannels
3=Scansforanalogonly,deletesdigitalchannels
4=Scansforanalogonly,keepsdigitalchannels
AscanmustbetriggeredbyT^orfrontpanelfollowingaD0command.
XD= Channeldelete XD=<major>,<minor>removeschannelfromchannellist.
Example: '>XD=0,0'removescurrentchannel
XA= Channeladd XA=<major>,<minor>,<physical>addschannel
Example: '>XA=38,1,0'Ifphysicalchannelis0,itwillbethesameas
major.
NC Channelnamestatus >NCreturnschannelname,upto7characters
NP Programnamestatus >NPreturnsprogramname,upto30characters,15additionali
f
therearenon‐ASCIIcharacters,suchasñ
D4= Overscan(0‐9)% Selectspercentageofoverscanforvideooutput.
Q0= CaptionModeOff/On 0=Captioningoff1=Captioningon
Q1= AnalogCaptioningType(1‐8) 1‐4=Caption1‐45‐8=Text1‐4
Q7= DigitalCaptionService Setto1‐6
FrontPanel
Tuning
Output
Control Commands

Page 9 232-ATSC 4K User Manual 082018
Code Function Operation
VU Rampvolumeup Startsvolumerampingup
VD Rampvolumedown Startsvolumerampingdown
VV Stopvolumeramp Stopsvolumeramping
VH Setsvolumelevel0‐100 Volumelevel,scaledin100steps
VL Setsvolumelevel0‐63 Volumelevel,scaledin63steps(compatibilitymode)
VX VolumeMuteoff Restoresaudiovolumetopreviouslevel
VM VolumeMuteon Mutesaudiooutputs
VT ToggleVolumeMute Alternatesaudiomuteonandoff
SQ RequestQModestatus Unitsends"Q"Modestatusstring
SS RequestFrontPanelstatus Unitsends"S"FrontPanelstatusstring
STRequestChannelstatus Unitsends"T"Channel/Sourcestatusstring
SV RequestAVstatus Unitsends"V"Audiostatusstring
IP= IPAddress
IP=xxx.xxx.xxx.xxx
DefinesIPaddress,
thensendsstatu
s
IPreturnstheMACaddress,currentIPaddress,subnetmask,and
gateway.
Example: $MAC=0014C8140001IP=192.168.001.231
IG=000.000.000.000IM=255.255.255.000IY=1
IG= IPGateway
IG=xxx.xxx.xxx.xxx
DefinesIPgateway,
thensendsstatu
s
IGreturnstheMACaddressandIPinformation.
IM= IPSubnetMask
IM=xxx.xxx.xxx.xxx
DefinesIPsubnetmask,
thensendsstatu
s
IMreturnstheMACaddressandIPinformation.
IY= IPMode IYreturnscurrentmode.IY=1StaticIY=2DHCP
IX= Telnetport
IX=xxx.xxx.xxx.xxx
DefinesTelentport
IXreturnscurrentTelnetport(00023default).
UO
UF
UDPReplyPort31932 UOturnsUDPReplyporton.
UFturnsUDPReplyportoff.
NW= Setstunername Example: >NW=Tuner1Setstunernameto'Tuner1'
NM= Getstunername Example:>NMReturns'<NMTuner1'
M0= LCDBacklight 1‐10
M8= LCDContrast 1‐10
R6 RefreshRate Setsto59.94Hz
RM RefreshRate Setsto60Hz
DH= HDMIAudioMute 0=AudioMuteDisabled1=AudioMuteEnabled
DI= HDMI/DVIMode 0=Auto1=HDMI2=DVI
EF EchoOff Charactersreceivedwillnotbere‐transmitted(powerupdefault).
EN EchoOn Charactersreceivedwillbere‐transmitted.
ID ProductID Returnstheproductmodelnumberandfirmwareversion.
Z! Zap Reconfiguresunitforallfactorydefaultsettings.
Z] Reboot Emulatesarebootfromahardpowercycle.
Audio
IPSetup
MISCCommands
StatusRequest
A carriage return is required at the end of each command and is assumed in all examples. The ‘=’ sign for parameters may be omied if desired, though it is
helpful for clarity in checking programming.

Page 10 232-ATSC 4K User Manual 082018
HD-RC Remote Emulaon
IR commands sent from the CR HD2-RC Wireless Remote may be emulated.
KK=<key> 9=Power(toggle) 101=PrevChan
10=0 105=Menu
11=1 106=Right
12=2 107=Left
13=3 108=Up
14=4 109=Down
15=5 110=Enter/Select
16=6 111=Exit
17=7 115=CC
18=8 141=Format1080i
19=9 142=Format720p
21=Enter/Select 143=Format480p
22=ChUp 144=Format480i
23=ChDn 145=Format1080p
24=VolUp 146=Format2160p
25=VolDn 147=FormatAuto
26=VolMute(toggle) 149=OutputRGB
27=PowerOn 151=OutputYPbPr
28=PowerOff 153=Air
29=Menu 154=Cable
63=Guide 155=16:9RatioPillarBox
81=Signal 4:3RatioLetterbox
82=Ratio 156=16:9RatioFullWide
85=Audio 4:3RatioFull
88=Favoirite 158=AC‐3
95=List 159=PCM
96=Add/DeleteChannel 160=PCMVariable
98=Air/Cable 161=Display16:9
99=Dash 162=Display4:3
100=Info

Page 11 232-ATSC 4K User Manual 082018
Response Strings
Typical: [Attention] [Unit#] [data ...data] [cr] [lf]
232-ATSC 4K status response strings contain ASCII characters similar to those used for the same functions in command strings. An ASCII ‘carriage
return’ and ‘line feed’ follow each response string. Functions shown as N/A are not applicable or available in the 232-ATSC 4K. Characters will
appear in status strings as lowercase ‘x’.
Channel/Source Status Response String (T):
The 232-ATSC 4K channel status is split into Major Channel and Minor Channel secons. The Minor Channel will always be 000 for analog channels. The Minor Channel
status will display “F00” if the Major channel is a special “one-part” digital channel. Also, as one-part channels can go higher than 999, the Minor status will indicate
how many thousands (up to 63) should be added to the Major number. Example: Channel 1032 would return 032 for the Major Channel and F01 for the Minor Channel.
Two-part channels are limited to 999-999.
Audio Status Response String (V):
Volume 1 emulates legacy 232-series volume level for compatibility with existing applications.
Volume 2 shows actual 232-ATSC 4K level, from 0-100. Mute status will be sent if a user mutes volume from an IR remote.
Front Panel Mode Status Response String (S):
Q Mode Response String (Q):
Start # CMD Power Major
Channel
Video
Mute
Input RF Received
Resolution
Minor
Channel
NA Function
1‐9 U=On 3digits Unmuted 0=RF A=Air 0=1080i 3digits 0=None
M=Off C=Cable 1=720p
2=480p
3=480i
4=2160p
N=NoSig
< 1 T U 032 U 0 A 0 002 x 0
Start Unit CMD Power Volume1 VolumeMute Stereo Volume2
1‐9 U=On 0‐63 U=Unmuted N/A 0‐100
M=Off Emulatedlevel M=Mute Actuallevel
2digits 3digits
< 1 V U 63 Ux 100
Start Unit CMD Audio Tune
Mode
Lockout Bass Treble Output Output
Resolution
Output
Setting
NA
1‐9 N/A 0=Cable 0‐7 Fixed Fixed 0=RGB 0=1080i 0=1080i 4digits
1=Air 2digits 2=YPbPr 1=720p 1=720p
2=IRC 2=480p 2=480p
3=HRC 3=480i 3=480i
4=Auto 4=1080p 4=1080p
5=2160p 5=2160p
 6=Auto
< 1 S x 1 0 08 4 2 0 0 xxxx
Start Unit CMD Q0 Q1 Q2 Q3 Q4 Q5 Q6 Q7 Q8 NA
1‐9 CC CC Video AV Label IR 1digit DigitalCC DigitalCC 2digits
0=Off Type Detect Detect (fixed) 0=Off 0=Off Services 
1=On 1‐8 (fixed) (fixed) 9=Normal 1=On 1‐6
< 1 Q 1 1 3 0 2 9 0 1 1 xx

Page 12 232-ATSC 4K User Manual 082018
RS-232 Cable Connecons
Single Tuner
Mulple Tuners
Up to nine tuners may be daisy-chained from one RS-232 control port. Unit# addresses are required in command strings when more than one tuner is con-
trolled from the same control port.
Set the rst unit in the RS-232 chain to the highest Unit#, then wire in sequence to the last tuner in the chain. Contemporary Research tuners use an intelligent
data bus in which the tuner with the highest Unit# receives all commands then passes through commands to tuners with lower unit numbers. The next tuner in
the chain does the same, and so on.

Page 13
232-ATSC 4K User Manual 082018
On-Screen Menus
Main Menu
Displays sub-menu opons.
• Arrow keys highlight opon
• Select (or Enter) chooses opon
• Menu steps back or exits menus
• Exit exits all menus
• Some opons are only available if currently tuned to an analog or digital channel
Channel Menus
Sub-Menu for Channels oers opons for:
• Channel Auto-Scan
• Favorite Channel Selecon
• Add/Delete Channels
• Fine Tune (If tuned to an analog channel)
• Signal Strength Meter
Auto Scan
Starts scan of analog and digital channels for:
• Air — looks for NTSC and ATSC channels
• Cable Auto — looks for analog and digital QAM cable channels, as well as all frequency plans
• Cable STD — standard cable spacing
• Cable HRC — HRC cable spacing
• Cable IRC — IRC cable spacing
Tip: Normally, use Auto. Most cable channels will be in standard frequencies. If all the channels tune in STD
except channels 5 and 6, scan for IRC. If few channels can be found, scan for HRC.
Favorite Channels
Menu is also displayed from the List command, selects channels advanced by the FAV favorite channel com-
mand.
Use the Up/Down arrows to move through the list. Press Select to add a channel to Favorites.

Page 14 232-ATSC 4K User Manual 082018
Channel Add/Delete
This menu can add or delete a channel accessed from Channel Up and Down.
If a channel needs to be deleted, tune to that channel, press Menu → Channel → Channel Add/Delete. Press
Select to delete the channel. The page can remain on the screen while addional channels are added or de-
leted as needed by stepping through the channels. If the channel has a good signal, it will be displayed in the
background.
The Add/Delete will show the name of the digital channel as well as the actual RF channel used for broadcast-
ing.
A digital channel’s sub-channels may be deleted without aecng the others.
Signal Strength
This page also displays from the Signal remote command. The graphic shows the current signal strength and
changes in real me. The strength of a channel may be monitored as the antenna is adjusted for best recep-
on.
Capon Menus
This menu accesses caponing features:
• On/O — turns capons on/o
Note: Other opons are not available if capons are o.
• Analog Mode — CC 1-4 and Text 1-4
• Digital Mode — Service 1-6
• Digital Font Opons
o Size — Standard (15 pixels), Large (21 pixels), or Small (11 pixels)
o Style — 1-6
o Color — 8 shades of background, foreground, and edge colors
o Opacity — foreground and background
o Edge — 6 style opons
• Version Informaon— Displays the version of tuner rmware
V-Chip Sengs Menus
This menu manages access to programming for US and Canadian standards.
The default PIN number for access is 0000 (four zeros).

Page 15 232-ATSC 4K User Manual 082018
Change PIN
Enter and conrm a new PIN for access.
US Rang
Use arrows and Select funcons to select the level of Movie and TV rang allowed.
Canada Rang
Use arrows and Select funcons to select the level of Movie and TV rang allowed.
Setup Menus
This series of menus select the opons for tuner operaon:
• Screen Format —16:9 or 4:3
Note: The screen format must be set separately for digital and analog channels. Rao on the remote
provides the same funcon.
• Time
• Sound Sengs
• Video Noise Reducon — On/O (if tuned to analog)
Seng to On helps clean up analog channels.
• Menu Language— English, Spanish, French

Page 16 232-ATSC 4K User Manual 082018
Screen Format
Selects between 4:3 and 16:9 aspect raos. Rao on the remote provides the same funcon.
• Screen Format 4:3
o For 4:3 Programs — 4:3 only
o For 16:9 SD Programs — 4:3 only
o For 16:9 HD Programs — 4:3 compresses Horizontally (no picture info lost), 16:9 Leerbox, Zoom
stretches Horizontally
• Screen Format 16:9
o For 4:3 Programs — 4:3 Pillar Box, 16:9 Stretches Horizontally, Zoom Stretches Horizontally and
Vercally
o For 16:9 SD Programs — 4:3 compresses Horizontally, 16:9 Normal, Zoom Stretches Vercally
o For 16:9 HD Programs — 4:3 compresses Horizontally, 16:9 Normal
Time
Sets me sengs for:
• Daylight Saving — Select and choose on or o. Note: The DST trigger comes from the broadcast staons
and may not be in sync. Use On/O or Time Zone to oset me.
• Time Zone — Select local Time Zone.
Time Zone
Move cursor le and right to select the me zone. Select enters the current zone.
Sound
Selects a variety of opons, each is only acve when currently tuned to an analog or digital channel:
• Analog MTS — Mono, Stereo, SAP (same as audio)
• Mul-Track — English, French, Spanish
• Digital Out — AC-3, PCM, or variable-level PCM. Set to PCM when using audio through the HDMI connec-
on — most displays cannot decode AC-3.
• Auto Volume — On or O

Page 17 232-ATSC 4K User Manual 082018
Info
Acvated from the Info command
• Channel — Virtual channel number and name
• Time — Current me and date
• Program — Duraon and name
• Addional Info — Physical RF channel, resoluon, encoding format, audio format, capon availability, and
rangs
Guide
Shows a list of programs for the next 12 hours.

Page 18 232-ATSC 4K User Manual 082018
Specicaons
Physical
Size (HWD): 8.5” [216mm] wide x 1.75” [44mm] high (1RU) x 8.0” [203mm] deep
Weight: 1.81 lbs [822 g]
Enclosure: Aluminum with black powder coat paint
Mounng: 1RU Rack mounng for one or two units side-by-side (RK1, RK2EZ)
Cooling: Not required for normal applicaons. Where there are mulple tuners in one rack, forced air venlaon is recommended to add air ow.
Front Panel
Display: Text display, white text on blue LCD
Top line indicates channel number and name.
Lower line indicates if RGB or YPbPr output is acve, resoluon of current channel, and Air/Cable tuning.
IR: IR sensor
Control: Power, Menu, Setup, and Select buons
Up and Down (Channel Up and Down) buons
Le and Right (Volume Up and Down) buons
USB: Mini USB-B port for future use.
Back Panel
Ethernet: RJ-45 10/100 Ethernet connector for Web page access, Telnet, and UDP control
Service: USB-A port for future use
Air/Cable: ‘F’, female, 75 ohm impedance, -10 to 25 dBmV typical
Supports dual cable and air tuning with oponal RF-AB Switch
Video Output: Simultaneous HDMI and NTSC video, switch between RGB and Component HD analog
Video Out: RCA composite video output, 1V p-p at 75 ohm impedance, 480i
Component Out: 3 RCA YPbPr outputs (1080p/1080i/720p/480p/480i)
RGBHV: RGB Out HD-15 female (1080p/1080i/720p/480p/480i)
HDMI: HDMI receptacle, Type A, Version 1.3 (2160p/1080p/1080i/720p/480p/480i)
Resoluons and Frame Rates:
480i — 29.97 Hz
480p and 720p — 59.94/60 Hz
1080i — 29.97/30 Hz
1080p — 60 Hz
2160p — 60 Hz HDMI only

Page 19 232-ATSC 4K User Manual 082018
Audio Output: Simultaneous HDMI, SPDIF, and Analog Stereo
HDMI: AC-3/PCM/PCM variable level
Digital Audio SPDIF: Coax and opcal output, AC-3/PCM/PCM variable level
Analog Audio Out: Stereo RCA variable level
RS-232: DB-9 male, RS-232 data link to control system, 1200 to 230K baud (9600 default), 8 data bits, no parity, 1 stop bit
IR In: 3.5mm stereo jack for oponal IR-RXC IR Receiver
Sleeve = DC power+ from power jack input, limited to less than 100 mA
Ring = DC power– (GND)
Tip = IR data signal
A/C: 3.5mm control output to operate the RF-AB Air/Cable Selector Switch
Power In: 2.1mm coaxial jack (inside center conductor posive), 1.1A maximum, 11 to 14 VDC, 12 VDC typical, 13.2W 45 BTU, 15.2 W 52 BTU including
power supply, current draw 0.198A@114 VAC with power supply
Tuning
Frequency Range: ATSC and Clear QAM (cable) television 54 to 866 MHz
TV System: ATSC, NTSC, Cable, and Clear QAM (1080i/720p/480p/480i)
Tuning: O-Air 2-69 (NTSC and 8-VSB) and CATV 1-135 (Analog, 64QAM, 256QAM, 8-VSB)
Aspect Rao: 4:3, 16:9, and Zoom
Caponing: DTV and Analog
Lock: Parental opon for channels and/or rang
Caponing
On-Screen: Displays on-screen analog and digital caponing on all video ports
Caponing Data: Caponing data from analog and digital channels will be provided as Line 21 caponing on the composite video port
Includes
HD2-RC IR Tuner Remote, 4AAA baeries
PS12-1.5 Power Supply, 1.5A maximum, 12 VDC
RKU Universal Rack Kit
Opons
PS12-8Y 8A power supply with Y cable may be ordered with every 3-4 tuners in lieu of PS12-1.5 power supplies
RK1 Single Rack Kit, 1RU
RK2EZ Dual Rack Kit, 1RU
RF-AB Air/Cable Selector Switch (includes 3.5mm cable, connects to A/C control port on tuner)
IR-RXC External IR Receiver
CC-COM-B RS-232 Null Modem Cable
Trademarks
VGA and XGA are trademarks of Internaonal Business Machines
SVGA is a trademark of the Video Electronics Standard Associaon
HDMI, the HDMI logo, and High-Denion Mulmedia Interface are trademarks or registered trademarks of HDMI Licensing, LLC.