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Description
Contemporary Research QCA9-33 Active RF Combiner with 8 High-Level + 1 Low-Level InputsThe Contemporary Research QCA9 33 is an active RF combiner that includes eight high level inputs and one low level input, combining with high isolation as well as amplifying up to a 33 dBmV output level. Designed for QMOD HDTV applications, the eight RF inputs typically receive 29 dBmV RF from QMOD HDTV modulators. The ninth input is for up to 19 dBmV RF signals, such as incoming cable feed, a control channel from an ICE HE Head End control modulator,
The Contemporary Research QCA9-33 is an active RF combiner that includes eight high-level inputs and one low-level input, combining with high isolation as well as amplifying up to a 33 dBmV output level. Designed for QMOD HDTV applications, the eight RF inputs typically receive 29 dBmV RF from QMOD HDTV modulators. The ninth input is for up to 19 dBmV RF signals, such as incoming cable feed, a control channel from an ICE-HE Head End control modulator, or any other QMOD or QCA9-33. Up to eight QCA9-33 combiners can feed a single combiner to deliver up to 76 channels. The low-noise, wideband 860 MHz amplifier compensates for combining losses and adds 3 dBmV of gain, typically supplying a total output of up to 33 dBmV. This compact unit mounts in a single rack space using CR RK1 and RK-2 rack kits (available separately), and can be mixed with QMOD HDTV modulators using the same rack kits.
Product Highlights
- Compatibility
- QMOD HDTV modulators
ICE-HE Head End control modulator
QDA4-45 amplifier combiner
- Tunes analog and digital channels in ATSC, NTSC, and clear QAM formats
- Combines eight high-level channels (QMOD 29 dBmV) and one low level input (cable, ICE-HE at 10-18 dBmV)
- Cascade multiple units for up to 72 channels in one array
- Low-noise, 860 MHz wideband amplifier
- Compensates for combining losses and adds 3 dBmV gain
- Provides a maximum output level of up to 33 dBmV
- Provides high-isolation combining
- Operates with an extremely low noise figure of 1.8, low power of less than 2W
- Compact metal enclosure, mounts in 1 RU using RK1 and RK2 rack kits (available separately)
- Made in USA
Applications
- Use the QCA9-33 as a 9-channel, 30 dB amplifier for small to medium-sized RF applications
- Can be used with nine QMOD modulators, or eight QMOD modulators plus ICE-HE Head End, or eight QMOD modulators plus cable feed
- Feed output to a second CCA9-33 to combine up to 17 channels
- Feed eight QCA9-33 units to one QCA9-33 to combine 64 or more channels without signal loss
- Feed four QCA9-33 units into a QDA4-45 to distribute up to 36 channels
- Feed combined output to a launch amplifier for larger systems
- PS12-500 12 VDC, 500 mA Power Supply
- Limited 2-Year Warranty
| Connectors | Back Panel: 8 x High-level input F connector 1 x Low-level input F connector 1 x Amp out F connector 1 x DC power input (2.1 mm coaxial jack, inside center conductor positive) |
| Maximum Input | High-level: 30 dBmV Low-level: 19 dBmV |
| Isolation | 38 dB typical, 30 dB minimum, 54 to 860 MHz |
| Return Loss | Input: 30 dB typical Output: 20 dB typical |
| Output | 17 dBmV amplifier, extremely low noise, linear performance through 860 MHz Net +3 dB gain after combining |
| Maximum Level | +33 dBmV |
| Composite Triple Beat | -75 dBc, 132 channels at +30 dBmV per channel |
| Noise Figure | 1.8 typical |
| LED Indicator | 1 x Power LED |
| Power Requirements | 11.5 to 15 VDC, 12 VDC typical (may be unregulated) 170 mA maximum |
| Enclosure Type | Rack mountable metal enclosure |
| Dimensions (W x H x D) | 8.5 x 1.75 x 6.0" (216 x 44 x 153 mm) |
| Weight | 1.1 lb (500 g) |
Shipping Notes
- Free Standard Shipping on $100+ Orders to the USA.
- Except Preorder products are shipped in 48 hours.
- Delivery to the USA:
- Standard Shipping : 3-10 business days
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Exchange/Return Notes
- We offer a 30-day return/exchange service after receiving.
- Final sale items are not eligible for returns or exchanges.
- To process your return/exchange, please contact us at [email protected]
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