Upcom Technologies' UC-750 DTV-GF is a VHF/UHF repeater/transmitter
specially designed to improve and assure Terrestrial Digital TV coverage
where the terrain features may cause gaps in the coverage of main
transmission stations. The gap ller re-transmits the DTV RF channel at
the same channel, amplied with minimum distortion.

• SUPPORT MAJOR DIGITAL TERRESTRIAL AND MOBILE TV
  STANDARDS: ISDB-T, ISDB -TB , ATSC, DVB-T/T2, DVBH/
  SH, DTMB, CMMB, DAB/T-DMB, FLO
• CHANNEL BANDWIDTH: 6MHZ OR 8MHZ
• RF INPUT: VHF OR UHF WITH STEP OF 1HZ
• RF INPUT RANGE: -72dBm TO -10dBm
• NOISE FIGURE < 10dB
• INPUT LEVEL AGC SQUELCH
• ADJACENT CHANNEL INTERFERENCE: > 35dB
• RF OUTPUT: VHF OR UHF WITH STEP OF 1HZ
• RF OUTPUT LEVEL: 1W TO 100W
• MAX MER : 34dB TYPICAL, MER LOSS<2dB
• SPECTRUM SHOULDER > 45dB
• TRANSIT DELAY: 5μ
• ECHO CANCELLATION RANGE: 1.5μ TO 448μ
• ECHO CANCELLATION: <40dB
• GAIN MARGIN: -12dB MAX
• POWERFUL LINEAR AND NON-LINEAR PRE-CORRECTION
• DIGITAL SHAPING FILTER PRE-CORRECTION
• RS232 CONTROL AND SUPERVISION OR IP WEB BROWSER
  IN OPTION
• COMPLIANT WITH ATSC SPECIAL GAP FILLER FEATURES

Iso-Frequency Gap Filler
Hetero-Frequency Transposer

RF Input:
Frequency range:
VHF frequency range: 170 MHz to 240 MHz
or UHF frequency range: 470 MHz to 860 MHz
Frequency step: 1Hz
Channel bandwidth: 6MHz or 8MHz
Input level range: - 72 dBm to -10 dBm
Typical input level: - 55 dBm
Max input level: 0 dBm
AGC squelch: -75 to -10dBm, +/-3dB
Noise figure:<8dB
Doppler filter (max frequency):10Hz
Adjacent channel interference (QEF):
Analogue > 35 dB, Digital >35 dB
Return loss:>13dB
Input connector type: N female, 50ohm

RF Output:
Central frequency:
VHF frequency range: 170 MHz to 240 MHz
or UHF frequency range: 470 MHz to 860 MHz
Frequency step: 1Hz
Output level : 1W to 100W+/-2dB, step 0.1dB
Signal stability: +/- 0.1dB/10degrees
In band ripple: < 1dB, Echo Cancellation off
In band ripple: < 1dB, Echo Cancellation off
Maximum MER: 34dB typical
Shoulder and out of band rejection: >45dB
Spurious: 36dB relative to total power
Return loss: >15dB
Output connector type: N female, 50 Ohm

Gap Filler Performance:
Digital filter shaping and tilt +/-2dB, step 0.2dB
Minimum transit time <5us
Echo cancellation range: 1.5us to 448us
Gain margin: -12dB max
Echo attenuation: >40 dB
MER loss: < 2 dB
Temperature management: RF mute or Power off
at critical temperature

Shaping filter delay: 5,6,7,9us
Shoulder and out of band rejection: >54dB
Maximum MER: 38dB typical
Gain margin: -4dB @ MER=27.3dB
Echo attenuation: >30dB
Pilot carrier phase noise: < -93 dBc/Hz@ 20KHz

Build-in Test Mode:
PRBS TS Sequence
Central Carrier Cancelled mode for noise test
Iso-frequency Antenna coupling test

Clock Reference:
SFN: Time offset setting
MFN: BR adaptation, Static delay setting

Clock Reference:
Internal 10MHz
To stability : +/-1ppm(typical)
Time stability: +/- 1 ppm /year
10MHz reference Output level: 0dBm +/- 3dB
External 10MHz
10MHz Input level: -15dBm to +15dBm
Frequency: 10MHz+/-5ppm
Input connector type: BNC female, 50 Ohm

Control Mode:
Local control: 6 buttons, LCD screen, LED
Remote control: RS232 & RS485 or WEB browser
through IP Ethernet RJ-45 in option
User friendly man machine interface

Operating temperature:
0 to 50°, humidity 10% to 80%(Indoor)
-20 to 70°, humidity 10% to 80%(Outdoor)
Pre-correction:
Linear pre-correction: shaping filter
Non linear pre-correction: AM-AM, AM-PM
Non linear Pre-correction:
Single shoulder and double shoulder.