New 2m +25dB low-noise preamplifier with 144-146MHz bandpass filter View larger

Antennas Amplifiers

AA-6670-PREAMP2M-3003

New product

Serbia

2m +25dB low-noise preamplifier with 144-146MHz bandpass filter

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Low-loss input bandpass filter for the 2m band from 144 to 146MHz with PGA-103+ very low noise preamplifier, +25dB gain.

The unit contains a high-selectivity, high-Q, low-loss -0.13dB bandpass filter with VLNA.

A 2m cm bandpass filter is integrated to suppress out-of-band signals from 70cm or 23cm stations.

Achieves better results than with two separate components, approximately 0.05-0.1dB lower NF, thanks to two fewer connectors.

Power consumption: +10-15V / 100mA

Supplied with a box for outdoor mounting.

More details

195,00 € tax excl.

Available to order only, within 10 to 15 days

Data sheet

Results measured:

Frequency and gain:

1.82 MHz : - 75 dB
3.8 MHz : - 82 dB
7.1 MHz : - 80 dB
14.15 MHz : - 67 dB
21.2 MHz : - 62 dB
28.4 MHz : - 55 dB
50.1 MHz : - 40 dB
54 MHz : - 37 dB
70 MHz: - 29 dB
70.5 MHz : - 28.5 dB
FM : 88 MHz : - 18.5 dB
FM : 98 MHz : - 12.3 dB
FM : 108 MHz : - 5.3 dB
144 MHz: + 25 dB NF = 0.7 dB (calculated band-pass filter insertion loss)
144.1 MHz: + 25 dB NF = 0.7 dB (calculated band-pass filter insertion loss) + 25 dB NF = 0.7 dB (calculated band-pass filter insertion loss)
146 MHz: + 25.1 dB NF = 0.7 dB (calculated band-pass filter insertion loss)
288.2 MHz : - 34 dB
296 MHz : - 36.5 dB
432.1 MHz : - 46 dB
440 MHz: - 44 dB
IP3out: > 37 dBm

These excellent results are the result of careful selection of components and meticulous design.

Thanks to input filtering, the combination of preamplifier and bandpass filter is much better protected against interference from strong out-of-band signals.

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