14 to 14.5 GHz Ku-band PLL down-converters with local oscillator frequency of 13.05 GHz.
Monitor the 14-14.5 band, satellite uplink at a teleport hub or VSAT terminal. Input is 14 - 14.5 GHz and output 950-1450 MHz so you may use L band spectrum analysers and normal modems to monitor your transmit signals.
In several countries it is now allowed to install and to operate also 14GHz terrestrial microwave links, provided that the direction of pointing of the antennas is not towards the horizon in either of the two directions
where the geostationary orbit meets the horizon, as in such cases the antenna would be pointed at a very low elevation satellite. Point to point links over distances of 40 km have been reported.
* Check with your country radio regulatory authority about 14 GHz radio relay links.
14-14.5 GHz PLL DOWN-CONVERTER
For monitoring Ku band VSAT and earth station transmissions and as local loop test translator. Together with low power Ku band transmit BUC may be used for line of sight terrestrial microwave relay links, subject to local regulations and avoidance of pointing the antennas at low elevation satellites. Ideal for reception of both wideband and narrowband carrier due to high stability PLL 10E-6 local oscillator. Could even be used to build half a satellite transponder (educational) !
Note the name on the lable: "AMIWIMA", possibly of German or China origin/manufacture ?
RF input: 14 - 14.5 GHz
Input VSWR: 2.5:1 max
Input connector: WR-75 waveguide
Input level: -10 dBm max
Input noise figure: 0.9 dB
Conversion gain: > 40 dB.
Frequency: 950 - 1450 MHz.
Output VSWR: 2.3:1 max
Output connector F type female
Output impedance: 75 ohm
Output level (P1dB): 0 dBm min.
LO frequency = 13.05 stability 1.0ppm @ 0 to 50deg C
DC input voltage: +14 to +24V DC
DC input current: 260mA typical
Operating temp: -20 top +60 degC
Vibration: 4G 50 Hz
Shock: 10G max
Size: 11.5 x 4 x 4 cm
Mass: 0.3kg max
All specifications and colour are subject to change without prior notice.
The identity and source of this device was a puzzle. I believe is is called AMIWIMA with model no: DOC-PLL-14GHZ-S. May be available from ALLSAT W. S. GMBH, Address : Postfach 1260, Hauenstein Germany, Telephone: 49-6392-994166
► Page created 15th April 2009, amended 5 April 2021
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