
Low Noise Block Down Converter
- Frequency range
- 10.7 GHz – 20.2 GHz
- State of the Art noise figure
- Multi-band capabilities
- Vibration tolerant
View Series →2 models
Signal Conversion
Quad Band Low-Noise Block Down Converter

Industries: Aerospace, Military, Satcom
Quick Answers
Series Specifications
| Frequency Range | 17.7 GHz to 21.2 GHz |
|---|---|
| Output | 950-1,950 MHz |
| Phase Noise | <-82 dBc/Hz @ 10 KHz Offset, MAX |
| Conversion Gain | 60-67 dB |
| Spurs | -90 dBm with no RF Input Signa |
| Input Level | -10 dBm |
| Supply Voltage | 11-19.5 VDC |
| Temperature Range | -55C to +70C |
| Internal Reference | Optional |
| Stability | Same as External 50 MHz Reference. |
| External Reference | 50.0 MHz |
| Package Size | 4.22" x 3.85" x 1.00" |
Models — all models are configurable
| Model ID | ||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| QLNB-21200-03 | Band A 17.7 GHzBand B 18.45 GHzBand C 19.2 GHzBand D 20.2 GHz | Band A 18.7 GHzBand B 19.45 GHzBand C 20.2 GHzBand D 21.2 GHz | +950 | 50.0 MHz | -72 | -82 | -92 | 11-19.5 VDC | 800 | 60-67 dB | -55C to +70C | QuoteSpec Sheet |
This is a small sample of our models — all are configurable. If you don’t see the frequency you need, request a configuration and we’ll get back to you within 1 business day.

Low Noise Block Down Converter

Block Down-Converter

Dual Band Block Down Converter
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