Ձեզ անհրաժեշտ է 1080i50 H265 2.2-2.7 ԳՀց HDMI հաղորդիչ և ընդունիչ?
Ինձ անհրաժեշտ է 1080i50 HDMI(SDI) connection with wireless capabilities, using H265 encoding, operating within the frequency range of 2.2 դեպի 2.7 GHz.What is the expected delay for your set?
Համար անլար տեսահաղորդման համակարգ that meets the following specs:
- Մուտք / ելք: HDMI կամ SDI (1080i50, broadcast TV standard)
- video կոդեկ: H.265 (հույս)
- հաճախականությունը Range: 2.2 - 2.7 GHz (suitable for COFDM systems, licensed/regulated bands)
- Օգտագործեք դեպք: TV station, professional live broadcast
- ռադիո: Point-to-point or mobile (camera-to-base)
May I know that h265 vs lower latency, which is important for you? can not support both. Is 2.2-2.7G mandatory? The default frequency range is 170-860MHz. If 2.2G must be supported, then an up-converter must be used on the transmitter and an down-converter on the receiver. I will recommend a most suitable model Vcan1726.

Բովանդակություն
🎯 Typical System Latency (H.265, COFDM, 2.2–2.7 GHz)
| Բաղադրիչ | Approximate Delay |
|---|---|
| H.265 Encoding | 50- 150 ms (depends on hardware performance) |
| COFDM Transmission | 20-50 MS |
| H.265 Decoding | 30- 100 ms |
| Total End-to-End Delay | ✅ 100-300 MS (best case: ~150 ms) |
⚠️ Key Factors Affecting Latency
- Encoder Type: FPGA-based or hardware SoC (օրինակ. HiSilicon) performs faster than software encoders.
- որոշում & Շրջանակի փոխարժեքը: 1080i50 is interlaced, and compression may introduce 1–2 frame delay.
- FEC & Interleaving (in COFDM): If Forward Error Correction is high (օրինակ. 3/4), latency increases slightly.
- Մոդուլյացիայի սխեմա: QPSK/16QAM/64QAM – higher modulation may increase complexity but allow better data rate.
- Wireless Conditions: Stronger signal = lower latency. Moving cameras or non-line-of-sight adds delay or jitter.
📦 If You Use a High-Performance H.265 COFDM Wireless Kit
- Expected latency:
🔵 150ms ±50ms (realistic for professional-grade equipment) - Ultra Low Latency Options (custom build or very high-end systems):
🟢 Down to 70- 100 մս, but usually with H.264 + reduced GOP + low-latency mode
✅ Example Use Case Performance
| Օգտագործեք դեպք | Latency Estimate |
|---|---|
| Fixed camera to OB van (տեսադաշտ) | ~150 ms |
| Handheld camera with movement, same band | ~200 ms |
| Through walls / NLOS | ~250–350 ms (may need signal repeaters) |

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