Broadband directional antenna with down converter

The R&S®HF907DC SHF Directional Antenna with Down Converter combines two key features into a single product:

It extends the frequency range of portable receivers (e.g. R&S®PR100) up to 18 GHz

It allows localization of transmitters or interfering sources by utilizing the distinct directional pattern of a log.- periodic antenna. This is achieved by directing the antenna manually toward the direction of maximum receive signal voltage

The operating frequency range is downconverted to the range below 7.5 GHz in two switchable frequency bands. Preselection filters for each band suppress image frequency and IF breakthrough.

Due to the use of a rechargeable battery, the antenna is suitable for mobile applications.

Features & Benefits

Manual polarization switching (horizontal, vertical and 45° slant)

Distinct directional pattern

Battery operation for portable applications

Automatic frequency switching (in conjunction with R&S®PR100)

Excellent suppression of image frequency and IF breakthrough by means of switchable preselection filters

Specifications

Input frequency range BAND 1                 7.5 GHz to 12.5 GHz

Input frequency range BAND 2                 12.5 GHz to 18 GHz

Intermediate frequency range BAND 1      6.5 GHz to 1.5 GHz

Intermediate frequency range BAND 2      7.5 GHz to 2 GHz

Polarization                                                 horizontal, vertical or 45°, manually selectable

Nominal impedance                                    50 Ω

VSWR                                                         <3.5 (typ. <2.0)

RF connector N-type female

Frequency accuracy                                    <25 kHz

Image frequency rejection                           >30 db (typ. >45 dB)

IF breakthrough                                          <-30 dB (typ. < -45dB)

Passive antenna gain                                  typ. 8 dBi

Power supply

Rechargeable battery                                  12V / 3850 mAh

External power supply                                 10 V to 32V

Current consumption

Battery operation                                          approx. 600 mA

External power supply                                  approx. 1300 mA (simultaneous charging)

Operating time                                              approx. 7h (fully charged battery)

MTBF                                                            >30000 h (according SN29500)

Operating temperature range                       –10 °C to +50 °C

Dimensions

  Length                                                         approx. 355 mm

  Width                                                           approx. 147 mm

  Height                                                          approx. 172 mm

Weight                                                           approx. 3.5 kg