Technical Specifications; Common Specifications - Alcad 918 Serie Manuel D'utilisation

27 Technical specifications

27.1 Common specifications

Technical specifications
Frequency range
Range
Resolution
Level measurements
Dynamic range
Noise floor level
Units
Accuracy
Resolution
Measurement Filter
Standards
Measurements
Digital Measurements
Bit Error rate (BER)
Modulation error rate (MER)
Symbol rate
Bandwidth
Mode
FFT type
Constellation
Viterbi rate
Guard interval
Inversion of spectrum
HP/LP
PLP choice
Standards
Pre-echoes /Echoes / Impulse response
Dynamic range
Units
Affichage Constellation rapide
Fast spectrum analysis
Ultra fast mode
Expert mode (7875-7876)
Filters (according to the span)
Attenuator
Dynamic range (display)
NIT and OSD TV
Span
100
5-900 MHz (45-900 for 7871)
Measure: 50 kHz, display 1 kHz
20-120 dBμV (30-120 dBμV pour 5-45MHz)
Automatic according to standard: 100KHz - 300 kHz - 1MHz
BG, DK, I, L, MN, FM, carrier, DVB-C, DVB-T/H, DVB-T2
DVB-T/H
CBER (before Viterbi BERi)
VBER (after Viterbi BERo)
UNC (lost packets PER)
Noise margin
5 - 35dB
-
6MHz, 7 MHz, 8 MHz
-
2k et 8k, auto et manuel
QPSK, 16 et 64QAM, auto
1/2, 2/3, 3/4, 5/6, 7/8 (auto)
auto and manual
auto
yes
-
ETS 301-701
30 dB, 75km (en 8k)
μs, km, miles
yes
yes, with all information displayed on spectrum
Automatic or manual (0 to 50 dB with 10 dB steps)
5MHz to full span in 1, 2, 5sequences
Terrestrial band
10 dBμV typical
dBμV, dBmV, dBm, V
±2dB +/- 0.05dB/°C
0,1dB
RF, C/N
DVB-T2
LDPC (BERi)
BCH (BERo)
FER (frame error PER)
Noise margin
5 - 35dB
-
5MHz, 6MHz, 7 MHz, 8 MHz
SISO, MISO, PLP single or multiple
1k, 2k, 4k, 8k, 16k et 32k + extended
bandwidth, auto
QPSK, 16, 64 et 256QAM auto
1/2, 3/5, 2/3, 3/4, 4/5, 5/6 (auto)
auto
auto
-
yes
ETS 302-755
50 dB, -75km +75km (en 8k)
μs, km, miles
yes
350 ms typ. (3 times/s)
100kHz, 300kHz, 1 MHz
60 dB (10 dB/div)
yes
DVB-C
BER (before Reed
Solomon BERo)
UNC (lost packets
PER)
Noise margin
20 - 40dB
1 to 7.224 Ms/s
(J.83A)
-
-
-
16, 32, 64, 128 et
256QAM
-
-
auto
-
-
ITU J83-Annexe A
-
-
yes