z(DISCONTINUED) 220 MHz Filter/Preamp
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
162 MHz Filter/Preamp
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
Airspy R2 SDR
- WE ARE CURRENTLY EVALUATING THE EFFECTS OF THE NEWLY IMPOSED TARIFFS ON THIS ITEM
- The antenna connector is a Female SMA.
- Comes as shown with Airspy R2 SDR Receiver and USB cable.
- Airspy Revision 2 improves the following:
- Better USB noise immunity
- Better ESD protection on the RF input
- Added ESD protection on the dual High Speed ADC inputs
- Better RF Shielding
- Better RF Filtering
- Replaced the USB connector with a custom designed, more robust, 4 through hole points model
- Better thermal stability
- Better compatibility with the SpyVerter
See https://airspy.com/airspy-r2/ for specs.
$199.00 $169.00
YouLoop HF loop antenna
Electrically balanced passive loop design with low loss RF transformer to cancel the responses to electric fields.
Ideal for noisy environments where electric-field sensors like the mini-whip antennas are impracticable.
High Performance DX when used with a low noise preamplifier.
High quality 2 meters (approx. 6 feet) transmission line included.
Specifications:
- HF Portable & Flexible Receive Loop Antenna
- Covers HF frequencies (10 kHz to 30 MHz)
- Usable on FM/VHF up to 300 MHz as a folded Dipole
- Maximum power 250 mW
- Passive Design
- No Tuning required
- Low-Loss Wide-Band BALUN with 0.28 dB loss typ.
- Connection: SMA Male on the end of the feedline.
Package contents:
2 x 1m RG402 18 GHz Coax with SMA Male Connectors – Branches
1 x 2m RG402 18 GHz Coax with SMA Male Connectors – Transmission Line
Phase Inverter
T shaped low-loss wide-band BALUN
Compatibility:
Airspy HF+ Discovery (Recommended)
Airspy HF+ Dual Port (with R3 shorted)
Any other SDR with MDS <= -140 dBm (There aren't that many)
$39.95 $29.95
Spyverter R2
- WE ARE CURRENTLY EVALUATING THE EFFECTS OF THE NEWLY IMPOSED TARIFFS ON THIS ITEM
- Adapts Airspy to cover 1 kHz to 60 MHz.
- New R2 version with 80% current draw reduction.
- GPSDO reference clock input (on board *).
- 10 MHz instantaneous spectral view.
- This is NOT “just another upconverter”.
- The ideal expansion option for your Airspy.
- Includes two barrel connectors + jumper.
- No external power required (when powered by an Airspy)
- NOTE: NO Micro USB power cable is supplied with this package. See below for USB cables when used with non-Airspy/Bias-T SDRs.
- * External option available. See https://v3.airspy.us/product/spyverter-r2x/
See https://airspy.com/spyverter-r2/ for specs.
$59.00 $49.00
z(DISCONTINUED) 145 MHz Filter/Preamp
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
Airspy Mini SDR
- WE ARE CURRENTLY EVALUATING THE EFFECTS OF THE NEWLY IMPOSED TARIFFS ON THIS ITEM
- Airspy Mini
- Same specs as Airspy but 6 MHz view
- Lower CPU requirements than Airspy
- The antenna connector is a Female SMA.
See https://airspy.com/airspy-mini/ for specs.
$119.00 $99.00