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In the 1990s you could carry on a conversation on the "analog" cell phones (AMPS vs CDMA/TDMA) in the cut & cover lines in NYC (lines which are 12-20 feet below
by epc 9y ago
In the 1990s you could carry on a conversation on the "analog" cell phones (AMPS vs CDMA/TDMA) in the cut & cover lines in NYC (lines which are 12-20 feet below street surface). The signal would fade but wouldn't drop.
The cutover to digital signals circa 2001-2002 meant calls would drop as soon as the signal faded.
- dazc 9y ago'The cutover to digital signals circa 2001-2002 meant calls would drop as soon as the signal faded.' We get that even overground in the UK.
- acjohnson55 9y agoI pretty regularly get transient LTE service in Lower Manhattan's tunnels. Although, certainly not consistently enough to make calls.
- epc 9y agoYeah…I don't know if it's the depth or type of construction but I can get enough signal to check mail and occasionally twitter on the R and 1/2/3/4/5 but not the A/C/E.