Spruce Creek Microwave
HF Digital Preselector for Software Defined Radios
Features
Built in Power Supply.
RS232 Interface.
No Programming from external host.
Modular design for additional
Frequency bands HF thru UHF.
Quasi-Elliptical two pole response.
Continuous Sweep and Hop ability.
Band-width from 2% to10% available.
Built in Power Supply.
RS232 Interface.
No Programming from external host.
Modular design for additional
Frequency bands HF thru UHF.
Quasi-Elliptical two pole response.
Continuous Sweep and Hop ability.
Band-width from 2% to10% available.
Tuning range: 1 .5MHZ TO 30MHZ
4 Selectable 1.5-4MHZ 4-8MHZ
Bands: 8-16MHZ 15-30MHZ
3 DB Band-width: 5% nominal or
Customer Specified.
Insertion Loss: 4 DB Max.
Return loss: 10DB Max ref 50 Ohms.
IP3: +30 Min.
Control interface: RS 232
Tuning Steps: 10KHZ.
Tuning Speed: 250us Max.
Transient response: Less than 1microvolt.
Built in HP filter for transient suppression.
Power: +5 VDC @ 750MA.
Connectors RF: SMA Female.
Control connectors:
Standard 9 pin D connector.
Power Connector: 4 Pin miniature XLR
4 Selectable 1.5-4MHZ 4-8MHZ
Bands: 8-16MHZ 15-30MHZ
3 DB Band-width: 5% nominal or
Customer Specified.
Insertion Loss: 4 DB Max.
Return loss: 10DB Max ref 50 Ohms.
IP3: +30 Min.
Control interface: RS 232
Tuning Steps: 10KHZ.
Tuning Speed: 250us Max.
Transient response: Less than 1microvolt.
Built in HP filter for transient suppression.
Power: +5 VDC @ 750MA.
Connectors RF: SMA Female.
Control connectors:
Standard 9 pin D connector.
Power Connector: 4 Pin miniature XLR
The Digital Preselector Filter is a tunable
preselector filter used to enhance receiver
performance by reducing large interfering
signals that cause distortion. The preleselector
can be used in a variety of applications
including software defined radios (SDR),
conventional receivers, and remote collection
sites.
The Digital Preselector Filter contains a
controller/power supply and as many as four
filter modules. Each module supports 255
unique frequency settings. Each module is
calibrated to provide a tuning range with the
least amount of ripple across the band. When
a new frequency is requested, the controller
selects the band and tuning combination that
tunes the filter to be centered as close as
possible to that frequency. A new frequency is
requested by sending an ASCII command via
RS-232 or USB.
A complete description of the communications
protocol can be downloaded.
preselector filter used to enhance receiver
performance by reducing large interfering
signals that cause distortion. The preleselector
can be used in a variety of applications
including software defined radios (SDR),
conventional receivers, and remote collection
sites.
The Digital Preselector Filter contains a
controller/power supply and as many as four
filter modules. Each module supports 255
unique frequency settings. Each module is
calibrated to provide a tuning range with the
least amount of ripple across the band. When
a new frequency is requested, the controller
selects the band and tuning combination that
tunes the filter to be centered as close as
possible to that frequency. A new frequency is
requested by sending an ASCII command via
RS-232 or USB.
A complete description of the communications
protocol can be downloaded.
Specifications: HDP-2-1.5-30
Third Order Response
10MHZ TO 30MHZ
1.5MHZ TO 4MHZ
4MHZ TO 10MHZ
Multiband Preselector
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| To Contact us: |
| Phone: 443-880-7120 |
| 131 Aces Alley Daytona Beach, FL 32128 |
