A quick demonstration of OP25 vs a Uniden BCD996T on a weak signal P25 Phase I LSM trunking system (Morris County, NJ).
Both radios feed off the same “Scantenna” antenna, multiplexed by a common CATV drop amplifier. Note the poor constellation in OP25. Using an RTL-SDR.org dongle with TXCO.
OP25 does a fair job of decoding while the 996T doesn’t even hear the control channel.
For years this system was unmonitorable due to terrain and distance. Not anymore!
Stop breadboarding and soldering – start making immediately! Adafruit’s Circuit Playground is jam-packed with LEDs, sensors, buttons, alligator clip pads and more. Build projects with Circuit Playground in a few minutes with the drag-and-drop MakeCode programming site, learn computer science using the CS Discoveries class on code.org, jump into CircuitPython to learn Python and hardware together, or even use Arduino IDE. Circuit Playground Express is the newest and best Circuit Playground board, with support for MakeCode, CircuitPython, and Arduino. It has a powerful processor, 10 NeoPixels, mini speaker, InfraRed receive and transmit, two buttons, a switch, 14 alligator clip pads, and lots of sensors: capacitive touch, IR proximity, temperature, light, motion and sound. A whole wide world of electronics and coding is waiting for you, and it fits in the palm of your hand.
Have an amazing project to share? The Electronics Show and Tell with Google Hangouts On-Air is every Wednesday at 7:30pm ET! To join, head over to YouTube and check out the show’s live chat – we’ll post the link there.
Join us every Wednesday night at 8pm ET for Ask an Engineer!
Maker Business — Diversifying your portfolio with sneakers?
Wearables — Sight line savvy
Electronics — Lost signal? Have no fear!
Biohacking — The Positive Effects of Yogic Breathing
Python for Microcontrollers — Step into the light with Python! #Python #Adafruit #CircuitPython #PythonHardware @circuitpython @micropython @ThePSF @Adafruit
No comments yet.
Sorry, the comment form is closed at this time.