ELAD A12-1090 + BT12
The A12-1090 is a pre-amplifier designed specially for any of the Real-Time Virtual Radar products. The Mast Head Pre-amp amplifier increases the range of any of the Real-Time Virtual Radar products considerably. The A12-1090 can be used with any passive antenna like the BS1100 series.
Package includes B12-1090BT Interface. To supply the A12-1090 pre-amp with power the 12V DC voltage is injected over the coaxial cable. This is supplied via the BT12 interface. The A12-1090BT offers two N-Type connectors (female), the BT12 interface has one N-Type input socket (feed from the masthead A12-1090) and one BNC (to the Virtual Radar Unit).
12VDC. is required to power the BT12 and two patch cables, one from the mast head to the antenna, the other from the interface to the Virtual Radar Unit. The complete package can be ordered below which includes the A12-1090+BT12, 12V DC supply & both patch leads.
An antenna pre-amp should always be mounted as close to the antenna as possible, not at the end of the (long) cable. If the pre-amp is used at the end of the cable (downstairs) it will still amplify the signal, but also the noise added by the cable. This results in a worse signal to noise ratio (SNR) and thereby in less effective decoding of signals. Another advantage of using the pre-amp right at the antenna is that you can use cheaper cable with higher attenuation for the long downlead to your shack.
Frequencyrange 1030 - 19090MHz
Noise figure 0.9dB
Supply voltage 12VDC over coax (remote)
Power consumption 100mA
Max. Input level +2dBm
Connectors 2x BNC female
Size 74 x 93 45 mm
Weatherproof case for mast mount
To supply the AS-1090 pre-amp with power the 12V DC voltage is injected over the coaxial cable. This requires a DC injector (Bias-T) at the receiver (downstairs). A suitable Bias-T is the AS-1090BT. The AS-1090BT offers two BNC connectors (female) and a connector for 12VDC.