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BR-101JH
DVB-T Digital Gap Filler/Repeater
HAM TV edition of BR-101 with 1.2G band support
50–950 MHz and 1200–1350 MHz
BR-101JH is a special edition of BR-101E for HAM TV application. It demodulates the received TV RF signal to a transport stream and re-modulates it to a new TV RF signal entirely in hardware, and it can support up to the 1.2G band with high RF power (-18dBm), though 2'nd and 3'rd harmonic in the 950MH~1350MHz band is not well filtered.
DVB-T (EN 300-744) · 1.2G band @ -18 dBm · Bandwidth 2/3/4/5/6/7/8 MHz
Datasheet — BR-101JH
07 · DTV Gap Filler / Repeater
Features
- 01 Features — Hardware modulator and demodulator support EN 300-744 DVB-T /ARIB STD-B31 ISDB-T/ABNT NBR 15601 ISDB-Tb reception and retransmission. TV RF signal is demodulated to a transport stream (TS), and then modulated to a new TV RF signal with fully hardware digital processing without any MER loss or any noise addition. Built-in 31-way PID filters and PCR re-stamp.
- 02 BR-101E supports EN 300-744 DVB-T while BR-101J supports ARIB STD-B31 ISDB-T/ABNT NBR 15601 ISDB-Tb.
- 03 BR-101JH is a special edition of BR-101E for HAM TV application; BR-101JH can support up to 1.2G band with high RF power (-18dBm), but 2'nd and 3'rd harmonic in 950MH~1350MHz band is not well filtered.
- 04 Demodulator (Receiver) — BR-101E supports Digital Terrestrial DVB-T Receptions (5/6/7/8 MHz bandwidth) and amateur HAM DVB-T TV reception (2/3/4 MHz bandwidth). BR-101J supports Digital Terrestrial ISDB-T/ISDB-Tb Receptions (6/7 MHz bandwidth).
- 05 Modulator (Transmitter) — Direct digital conversion to 50~950MHz and 1200~1350 MHz for excellent signal quality.
- 06 BR-101E supports configurable bandwidth from 2MHz to 8 MHz. BR-101J supports configurable bandwidth 6/7/8 MHz.
- 07 Channel Adaptation — The input and out channels are totally independent. The new (Tx) channel's frequency, bandwidth, code rate, guard interval, FFT, constellation can be totally different from the original (Rx) one's. If the input channel data rate is less than the output, auto null-packet insertion will be done in the modulator. If the input channel data rate is larger, setting PID filter properly to filter out unwanted packets may avoid data overflow. PCR re-stamp mechanism is supported to keep the correctness of PCR when PID's filtered or null packets inserted.
- 08 Applications — DVB-T/ISDB-T digital TV signal repeater/extender · DVB-T/ISDB-T closed circuit TV gap filler · Air to Cable/Cable to Air/Air to Air/Cable to Cable TV signal repeater
Specifications
Specifications
- RF connector
- Tx: 75-Ω F (female) connector; Rx: 75-Ω IEC (female) connector
- Bandwidth — Transmitter
- BR-101E (DVB-T): 2/3/4/5/6/7/8 MHz; BR-101J (ISDB-T/Tb): 6/7/8 MHz
- Bandwidth — Receiver
- BR-101E (DVB-T): 2/3/4 MHz or 5/6/7/8 MHz *1; BR-101J (ISDB-T/Tb): 6/7 MHz
- FFT
- 2K, 4K, 8K
- Constellation
- 64QAM/16QAM/QPSK
- Code rate
- 1/2, 2/3, 3/4, 5/6, 7/8
- Guard interval
- 1/4, 1/8, 1/16 or 1/32
- Frequency range — Transmitter
- 50~950MHz and 1200~1350MHz, step size 1KHz
- Frequency range — Receiver
- 50~950MHz, step size 1KHz
- RF Output Level
- -4 dBm (104 dBuV) @ 50~950MHz; BR-101E/J: -45dBm @ 1.2G band *2; BR-101JH: -18dBm @ 1.2G band
- Digital Attenuator
- Range: +6/-25dB *3, Step size 1dB
- MER
- 28~33 dB Typically @50~950MHz; 25~30 dB Typically @1200~1350MHz
- Spectrum Shoulder (Adjacent channel)
- 45dB
- Phase noise
- <-92dBc @ 10kHz
- Carrier Suppression
- >42dB
- USB port
- USB 2.0 or USB 1.1
- Power
- 5V DC 390mA
- Dimensions (LxWxH)
- 75 x 30 x 15mm (excluding power adaptor)
- 1 : Bandwidth 2/3/4 MHz or 5/6/7/8 MHz are selected by a jumper.
- 2 : BR-101E/J U-band low pass filter is designed @950MHz, so 1.2G band power is filtered to such a low level.
- 3 : There could be MER loss in high gain/attenuation level.
Availability varies by model — current-production gear is in the eBay store, and every page links to its original write-up on the old site. Original product page →
https://hides.com.tw/en/ham/catalog/br-101jh/ · +886-2-2917-2417 · info@hides.com.tw