Wednesday, June 29, 2016
Uniden again released DMR beta firmware last Friday. This release is known as Release Candidate 1, so Uniden may be close to finalizing the firmware. There is still no software support for the DMR firmware (everything must be entered manually). I am still seeing problems with missed transmissions on Capacity Plus systems, but the releases have steadily improved in handling these systems over time.
Monday, June 27, 2016
The National Museum of the Marine Corps may be using 900 MHz ISM radios for security. I wasn't able to get a good look at the radios, but one of them appeared to be a Motorola DTR-series portable. These digital radios operate license-free using frequency-hopping spread spectrum (FHSS) technology. They are not encrypted, but scanners are not able to monitor them. The DTR radios are intended for on-site use; they operate as simplex only.
Sunday, June 26, 2016
The Fairfax 1 helicopter assisted Stafford this afternoon with an unknown operation on the Stafford Sheriff Office Mutual Aid talkgroup (4503). The helo was using radio ID 3162153 on Stafford's system.
I've listed everything found at the Quicken Loans National yesterday on the Montgomery County page. The county trunked system talkgroups could not be confirmed well because of poor copy of the system's signal. This may have been because of a nearby cell site. Congressional Country Club has updated some of their frequencies as well - notably switching more of them to DMR.