As an individual working on an organization with operations in Morris County, utilizing both mobile and portable radios, I find myself compelled to ask: what has led to the noticeable decline in performance of the recently implemented 700 system in comparison to the well-established UHF system? This observation of inadequacies is not unique to my own experience; it appears to be a sentiment shared by many, though not as strongly mentioned currently.
Historically, Morris County boasted an exceptional Phase 1 UHF simulcast site, renowned for its superior audio quality and expansive coverage. While occasional interference resulting from factors such as humidity and broadcasting channels did affect coverage intermittently, these issues were rare occurrences.
However, the transition to the 700 system has introduced a discernible deterioration in coverage, particularly in areas where the UHF system consistently performed strongly. Notably diminished Received Signal Strength Indicators (RSSIs) have emerged as a prominent concern, even in relatively central locations like a typical street on a clear day. Moving a subscriber unit to the UHF zone results in an instant RSSI of 100+, while the 700 system struggles to exceed the low 50s even on a mobile radio in certain areas. Strength is also not constant, even in the same exact location, whereas on the UHF cell reception was a constant strong unless you pushed the system to it limits such as going into a basement or deep inside an office building. While I am here, any idea if Morris County requires bi-directional amplifiers in buildings, and or assesses for it?
Although portable devices may exhibit robust signal strength outdoors, this strength swiftly dissipates upon entering buildings. Even attempting to transmit using a mobile radio from within the station has proven to be problematic. While I recognize that systems, for example, like the NJICS system may not be specifically tailored for indoor municipal coverage with the expectation that coverage is limited to the street, considering our local county system comprises 14 sites, my expectations are higher for this system. This situation is perplexing, especially given the anticipation that the transition to the 700 band should have brought about the coveted enhanced wall-penetration capabilities.
I acknowledge the rationale behind the shift to Phase 2 for spectrum efficiency, though it begs the question of if they really need twice as many channels, the audio quality is sub-par and deteriorates into unintelligible modulated digital noise greatly when the best practices aren't follow entirely. I am confident the amount of repetitions has increased two fold, especially, with weaker strength the packet loss is significant.
Given the substantial financial investment of millions of dollars, I am left confused by the decline in strength and coverage. The discrepancy between the expectations tied to this significant investment and the present reality raises valid concerns. So I ask, what might be the cause for these results?