Product Tag - vhf

  • 137.5 MHz NOAA/APT Filter/Preamp

    5.00 out of 5

    Uputronics filtered preamps for improved reception on 137.5 Mhz.

    This is a cost effective SAW based unit which give excellent performance gains.

    All Uputronics preamps are compatible with most USB SDR Dongles such as the Airspy. You can power them from either bias tee (This item is 100% compatible with the Airspy bias-tee) or a simple USB mini cable (Purchased separately). Bias tee/USB voltage is 5V max.

    This unit is a small filter and preamp designed to go between a software defined radio receiver and an antenna. Using a SAW bandpass filter and a low noise amplifier (LNA), it stops out of band intermodulation while providing additional gain for increased sensitivity. The LNA is before the SAW filter. To block strong commercial FM signals a high pass filter is installed before the LNA.

    The LNA used is a MiniCircuits PSA4-5043+ which provides at least 21dB of gain. To stop out of band intermodulation an 137.5Mhz SAW bandpass filter, which has a 7.6MHz bandwidth is also present. The insertion loss of this filter is approximately 1.4dB, which does increase the overall noise figure of the unit to 0.75dB. Connectors are SMA female both sides.

    The connectors on both input and output are SMA Female.

    Note: This model still uses a USB Mini connector for external power and has no power LED. It has not received the redesign that the other models have received. We have no ETA for that redesign.

    Datasheets:
    https://store.uputronics.com/files/HAB-FPA_Datasheet_Latest.pdf



    Mechanical diagram:
    https://store.uputronics.com/files/LNAMechcanicalDiagramV2.pdf

    $55.95
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  • 162 MHz Filter/Preamp

    0 out of 5

    Uputronics filtered preamps for improved reception on 159-163 Mhz.

    This is a cost effective SAW based unit which give excellent performance gains.

    All Uputronics preamps are compatible with most USB SDR Dongles such as the Airspy. You can power them from either bias tee (This item is 100% compatible with the Airspy bias-tee) or a simple USB minicable (Purchased separately). Bias tee/USB voltage is 5V max.

    This unit is a small filter and preamp designed to go between a software defined radio receiver and an antenna. Using a SAW bandpass filter and a low noise amplifier (LNA), it stops out of band intermodulation while providing additional gain for increased sensitivity. The LNA is before the SAW filter. To block strong commercial FM signals a high pass filter is installed before the LNA.

    The LNA used is a MiniCircuits PSA4-5043+ which provides at least 20dB of gain. To stop out of band intermodulation a 161Mhz SAW bandpass filter, which has a 7.6MHz bandwidth is also present. The insertion loss of this filter is approximately 1.4dB, which does increase the overall noise figure of the unit to 0.75dB

    The connectors on both input and output are SMA Female. The external power connector is a USB-C and this revision has a power LED.

    Datasheets:
    https://store.uputronics.com/files/HAB-FPA_Datasheet_Latest.pdf



    Mechanical diagram:
    https://store.uputronics.com/files/LNAMechcanicalDiagramV2.pdf

    $52.95
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  • 15 %

    Airspy HF+ Discovery SDR

    0 out of 5

    Building on the field-proven Airspy HF+ architecture, we designed the Most Refined HF/VHF SDR with world class performance in the smallest form factor.

     

    The Airspy HF+ Discovery sets a new standard in terms of reception performance with extra pre-selectors for all the supported bands and a New DSP Core to optimize the gain distribution and the filtering parameters in real-time and dig deeper in the noise.

     

    The signal path includes very high dynamic range data converters along with high performance passive mixers with an excellent Polyphase Harmonic Rejection structure. The included band-tracking pre-selectors eliminate unwanted interference and preserve the dynamic range of the receiver. With its world class strong signal handling capability and incredibly Low Noise, the HF+ Discovery is the ideal companion for All your High Performance Receive Scenarios.

     

    Both the architecture and level of integration achieved in this design allow us to bring top performance reception at a very affordable price.
    All the major SDR software is supported. Check the download page.

     

    Ready to discover all these signals hiding in your spectrum?

     

    Featured specifications:

    • State of the art SDR for HF and VHF
    • Covers 0.5 kHz to 31 MHz plus 60 to 260 MHz
    • Up to 660 kHz Alias and Image-free output
    • 18 bit DDC
    • 0.5 ppm high precision, low noise clock
    • No drivers required! (plug-and-play)
    • Best Noise Reduction on the market!
    • Supported by SDR# – the gold standard program! (and other SW)
    • Full details at https://airspy.com/airspy-hf-discovery/

     

    Hardware specifications:

    • The antenna connector is a Female SMA.
    • The USB connector is a Micro USB.
    • Comes with Airspy HF Discovery SDR Receiver and USB cable.
    $199.00 $169.00
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  • z(DISCONTINUED) 145 MHz Filter/Preamp

    0 out of 5

    Uputronics filtered preamps for improved reception on 145Mhz.

    This is a cost effective SAW based unit which give excellent performance gains.

    All Uputronics preamps are compatible with most USB SDR Dongles such as the Airspy. You can power them from either bias tee (This item is 100% compatible with the Airspy bias-tee) or a simple USB minicable (Purchased separately). Bias tee/USB voltage is 5V max.

    This unit is a small filter and preamp designed to go between a software defined radio receiver and an antenna. Using a SAW bandpass filter and a low noise amplifier (LNA), it stops out of band intermodulation while providing additional gain for increased sensitivity. The LNA is before the SAW filter. To block strong commercial FM signals a high pass filter is installed before the LNA.

    The LNA used is a MiniCircuits PSA4-5043+ which provides at least 21dB of gain. To stop out of band intermodulation a 145Mhz SAW bandpass filter, which has a 7.6MHz bandwidth is also present. The insertion loss of this filter is approximately 1.4dB, which does increase the overall noise figure of the unit to 0.75dB. Connectors are SMA female both sides.

    $59.95
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  • z(DISCONTINUED) 220 MHz Filter/Preamp

    0 out of 5

    Uputronics filtered preamps for improved reception on 220Mhz.

    This is a cost effective SAW based unit which give excellent performance gains.

    All Uputronics preamps are compatible with most USB SDR Dongles such as the Airspy. You can power them from either bias tee (This item is 100% compatible with the Airspy bias-tee) or a simple USB mini cable (Purchased separately). Bias tee/USB voltage is 5V max.

    This unit is a small filter and preamp designed to go between a software defined radio receiver and an antenna. Using a SAW bandpass filter and a low noise amplifier (LNA), it stops out of band intermodulation while providing additional gain for increased sensitivity. The LNA is before the SAW filter. To block strong commercial FM signals a high pass filter is installed before the LNA.

    The LNA used is a MiniCircuits PSA4-5043+ which provides at least 20dB of gain. To stop out of band intermodulation a 220Mhz SAW bandpass filter, which has a 7MHz bandwidth is also present. The insertion loss of this filter is approximately 2.3dB, which does increase the overall noise figure of the unit to 0.75dB. Connectors are SMA female both sides.

    $52.95
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