August 24, 2015

Uniden BCD996P2 RFI

I have had the BCD-966P2 for about 2 weeks now and can finally use it. The stock power supply is a switching mode pile of garbage and it nailed the lower HF bands with nothing but hash and noise. I went with the same style DC power supply as the Afedri SDR and the problem is solved. The replacement is a Jameco linear regulated 12v 1 amp. Here is the link to the model I purchased.

August 22, 2015

Same RTL-SDR but better design.

Over at the site they announced a new design. For $20.00 they add a lot to the already flooded RTL dongle eco-system. Received my dongle is 3 days.

Some Key Upgrades:

  • 1 PPM temperature compensated oscillator (TCXO) – Accurate tuning and almost zero temperature drift (2 PPM initial offset, 1 PPM temperature drift)
  • SMA female antenna port – Most dongles use the less common MCX or PAL antenna ports. Ours use SMA which is much more common so more adapters and antennas are available for it. It is also more durable and has lower insertion losses.
  • R820T2 tuner – More sensitive/lower noise floor than the older R820T tuner. 100% compatible with software for the older R820T.
  • Improved component tolerances – Allows the RTL-SDR to work more optimally over all frequencies.
  • Experimental: 4.5V USB powered bias tee - Can be enabled by soldering two pads on the PCB together. This allows the RTL-SDR to power LNA’s (like the LNA4ALL and HABAMP) and active antennas through the coax cable.
  • Experimental: Break out pads for direct sampling - Allows easier soldering to pins 4 & 5 on the RTL2832U for enabling the direct sampling mod.