870MHz 2-Way Amplifier (Big Housing and Four Amplification Modules)
MODEL: SFD-8734S2K6D4
Features:
* Forward path 1 * 870 MHz GaAs or GaN Push-Pull Hybrid Amp and 2 * 870 MHz GaAs or GaN Power-Doubler Hybrid Amp Modules. Return path 1* Reverse Hybrid Amp. Module. Module has brand name from G7/EU countries All modules have brand name from G7/EU countries
* High quality aluminum-alloy die-cast housing with passivation surface, beautiful and firm, corrosion prevention.
* Waterproof design, lightning proof structure and rainproof connection, fit for outdoor use.
* -20dB independent input and output test ports are set inside (outside optional) the product for the forward and return path.
* Modularized plug-in diplex filter, equalizer and attenuator, easy to choose or upgrade according to user's requirement.
* Independent installation design for the power supply, 60 VAC (220VAC optional).
* Apply to trunk and branch line in two way CATV system, to compensate the attenuation of branch lines.
Specification:
| ITEMS | FORWARD PATH | RETURN PATH |
| Frequency Range | 82 ~ 870 MHz, or higher | 5 ~ 65 MHz |
| Operating Gain (Includes DPXs, EQs, AGC …) | ≥ 34 dB, full range | ≥ 17 dB, full range |
| Response Flatness | ≤ ± 0.75 dB |
| Gain Control Range | 0 ~ 20dB Adj. / plug-in PAD | 0 ~ 20dB Adj./ plug-in PAD |
Slope Control Range
(Fixed value, Plug-in modules) | 3 ~ 12dB, | 3 ~ 9dB, |
| Noise Figure | ≤ 9 dB | ≤ 9 dB |
| Return Loss (75-ohm Reference) | ≥ 12 dB, full range |
| Recommended Output Levels | ≥ 38 / 50 dBmV (82 / 870 MHz) | ≥ 42 / 42 dBmV (5 / 65 MHz) |
| Rated Signal Level Distortion (*) | |
| Cross Modulation (XMOD) | ≤ - 60 dB | ≤ - 60 dB |
| Composite Second Order (CSO) | ≤ - 63 dB | ≤ - 63 dB |
| Composite Triple Beat (CTB) | ≤ - 63 dB | ≤ - 63 dB |
| Input / Output Impedances | 75 ohms, 5/8-24 Female |
| Hum Modulation | ≥ 65 dB @ 10A passing current |
| Power Requirements | 40 ~ 90 VAC / 50 ~ 60 Hz, or larger |
| Internal Circuit Voltage | 24 ± 0.3 VDC (high efficient switchmode power supply), withstand ≥1.8A Load. Overload, overvoltage, short circuit protection. |
Housing Design
| Die-cast aluminium housing design with paint/coating for:
- Good heat spread (Operating Temp.: 0 ~ +60oC, or wider).
- RF shielding ≥ 110 dB.
- IP67 degree of dust and water protection.
- For strand and pedestal mounting. |
NOTE:
-Measured with 132 NTSC (or 96 PAL) channels of Forward Path, at least 4 T-channels of Return Path, at Recommended Output Levels.
- Support Adj. Attenuator / plug-in Attenuator (PAD), plug-in DPX, and plug-in EQ between hybrid modules.
- Support Forward IN and OUT Test Ports (-20 dB), Return IN and OUT Test ports (-20 dB).
- Return Attenuator and EQ are designed / located at OUTPUT of Return Amp. Module.
- Lightning Arrestors at all IN/OUT Ports
1GHz Two way amplifier (Big housing and four modules)
SFD-1G34S2K6G4
Feature:
* Aluminium die casting housing, plug-in shielded frame ,surface by powder coating, beautiful and firm, corrosion prevention.
* Waterproof design, lightning proof circuits, rainproof connectors, fit for outdoor use.
* Double power output with high electric level.
* Forward and return circuits adopt amply modules which are from NXP or China;advanced technics and reliable performance.
* -20dB independent input and output test ports are set inside (outside optional) the product for the forward and return path.
* On board plug-in diplex filter, adjustable attenuators (or plug-in pads), and plug-in equalizers easy to choose or upgrad
* Independent power supply installation with for 60VAC or 220VAC.
* The housing with plug-in shielded frame ,easy to repair and upgrade.
* Apply to trunk and branch line in two way CATV system,to compensate the attenuation of branch lines.
Specification:
| NO | Parameters | Specification |
| 1 | RF PERFORMANCE - Forward |
| 1.1 | Passband Frequency | 82 to 1000 MHz |
| 1.2 | Operation Gain | 38dB |
| 1.3 | Noise Figure | <8dB |
| 1.4 | Interstage Slope | 13.5dB |
| 1.5 | Test Point (all) | -20dB +/- 1dB |
| 1.6 | Test Point Return Loss | ≤-16dB |
| 1.7 | Output Level(s) | 42dBmV min. @ 82 MHz and
54dBmV min. @ 1000 MHz |
| 1.8 | Channel Loading | 75 NTSC Analog + 75 digital |
| 1.9 | C/CTB | ≤-65dB |
| 1.10 | C/CSO | ≤-65dB |
| 1.11 | XMOD | ≤-65dB |
| 1.2 | Flatness | +/- 0.75 |
| 1.13 | Return Loss | ≤-16dB |
| 2 | RF PERFORMANCE - Reverse |
| 2.1 | Passband Frequency | 5 to 65 MHz |
| 2.2 | Gain | 20dB |
| 2.3 | Test Point (all) | -20dB +/- 1dB |
| 2.4 | Test Point Return Loss | ≤-16dB |
| 2.5 | Noise Figure | 6dB |
| 2.6 | Output Level | 40 dBmV |
| 2.7 | Channel Loading | 4 - 6 PAL analog channels |
| 2.8 | XMOD | ≤-65dBc |
| 2.9 | C/CTB | ≤-75dBc |
| 2.10 | C/CSO | ≤-75dBc |
| 2.11 | Flatness | ± 0.75 dB |
| 2.12 | Return Loss | ≤-16dB |
| 3 | General |
| 3.1 | Operating Temperature Range | -40 to + 70°C |
| 3.2 | Power | 30 to 100VAC |
| 3.3 | Power supply | 60VAC,1.8A |
| 3.4 | DC Ripple | <15 p-p mV |
| 3.5 | Power Consumption | 31W |
| 3.6 | Hum | ≤-60dBc |
| 3.7 | AC Bypass Current | 10A |
1GHz Two way amplifier (Big housing and three modules)
SFD-1G38S2K6F3
Feature:
* Aluminium die casting housing, plug-in shielded frame ,surface by powder coating, beautiful and firm, corrosion prevention.
* Waterproof design, lightning proof circuits, rainproof connectors, fit for outdoor use.
* Double power output with high electric level.
* Forward and return circuits adopt amply modules which are from NXP or China;advanced technics and reliable performance.
* -20dB independent input and output test ports are set inside (outside optional) the product for the forward and return path.
* On board plug-in diplex filter, adjustable attenuators (or plug-in pads), and plug-in equalizers easy to choose or upgrad
* Independent power supply installation with for 60VAC or 220VAC.
* The housing with plug-in shielded frame ,easy to repair and upgrade.
* Apply to trunk and branch line in two way CATV system,to compensate the attenuation of branch lines.
Specification:
| NO. | Parameters | Specification |
| 1 | RF PERFORMANCE - Forward |
| 1.1 | Passband Frequency | 82 to 1000 MHz |
| 1.2 | Operation Gain | 38 dB |
| 1.3 | Noise Figure | <8dB |
| 1.4 | Interstage Slope | 13.5dB |
| 1.5 | Test Point (all) | -20dB +/- 1dB |
| 1.6 | Test Point Return Loss | ≤-10dB |
| 1.7 | Output Level(s) | 38.5 dBmVmin@82MHZ 52dBmVmin@1000MHZ |
| 1.8 | Channel Loading | 75 NTSC Analog + 75 digital |
| 1.9 | C/CTB | ≤-65dB |
| 1.10 | C/CSO | ≤-65dB |
| 1.11 | XMOD | ≤-65dB |
| 1.12 | Flatness | +/- 0.75 |
| 1.13 | Return Loss | ≤-16dB |
| 2 | RF PERFORMANCE - Reverse |
| 2.1 | Passband Frequency | 5 to 65 MHz |
| 2.2 | Gain | 20dB |
| 2.3 | Test Point (all) | -20dB +/- 1dB |
| 2.4 | Test Point Return Loss | ≤-10dB |
| 2.5 | Noise Figure | ≤ 6dB |
| 2.6 | Output Level | 40 dBmV |
| 2.7 | Channel Loading | 4 - 6 PAL analog channels |
| 2.8 | XMOD | ≤-65dB |
| 2.9 | C/CTB | ≤-75dB |
| 2.10 | C/CSO | ≤-75dB |
| 2.11 | Flatness | ± 0.75dB |
| 2.12 | Return Loss | ≤-16dB |
| 3 | General |
| 3.1 | Operating Temperature Range | -40 to + 70°C |
| 3.2 | Power | 30 to 100VAC |
| 3.3 | Power supply | 60VAC,1.8A |
| 3.4 | DC Ripple | <15 p-p mV |
| 3.5 | Power Consumption | 31W |
| 3.6 | Hum | ≤-60dB |
| 3.7 | AC Bypass Current | 10A |
Headend RF Amplifier in 1U standard chassis
SQFD-8732D2K2-1U-2B or SQFD-1G32D2K2-1U-2B
Feature:
* Suitable for RF signal amplifying in the headend or branch headend in the CATV network system.
* 19 inch/1U standard chassis, RF output test port at the back board,easy to test inspection.
* With plastic coated surface, fine silk-screen printing.
* Frequency range: 40-862MHz. /1000MHz
* Imported independent power module, advanced technology and reliable performance.
* Adjustable attenuation for 20dB at one time, easy and simple for adjusting.
* High quality switching power supply with AC220V.
Specification:
| NO. | ITEM | Unit | Specification |
| 1 | Frequency range | MHz | 45~870 MHz/1000MHz |
| 2 | Return loss | dB | ≥16 |
| 3 | Nominal output RF signal level | dBμv | ≥104 (75 Ω ) |
| 4 | Frequency response | dB | ±0.8 |
| 5 | Gain | dB | 32 |
| 6 | Gain adjustable range | dB | 0~20 |
| 7 | Slope adjustable range | dB | Plug-in 0dB EQ(3/6/9dB optiona)l |
| 8 | Max noise figure(NF) | dB | ≤8 |
| 9 | coupler input testpoint | dB | 20 |
| 10 | coupler output testpoin | dB | 20 |
| 11 | Cross Modulation (XMOD) | | ≥ 63 |
| 12 | CTB | dB | ≥ 63 |
| 13 | CSO | dB | ≥ 63 |
| 14 | Hum Modulation | dB | 65dB min. |
| 15 | Group delay | ns | ≤5(112.25MHz/116.68 MHz ) |
| 16 | Distortion | | Measured with 132 NTSC/98 PAL channels at 44dBmV output, flat |
| 17 | Outside Dimensions(W×H×L) | mm | 483*229*45 |
| 18 | Power consumption | w | 15 |
| 19 | Power voltage | V | AC 100-240V (50-60Hz) |
| 20 | Working temp. range | ºC | 0ºC~ +50ºC |
| 21 | Weight | kg | 3 |
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