In NYC high rise not catching the signal indoor. any recommendation for antenna?

If you aren't able to get a GPS signal indoors, then an outdoor antenna may be the only option. The manufacturer of the device has some recommended options if putting something outdoors/rooftop is an option. Alternately, the TM2000B, if connected to the Internet and only needed for NTP time serving, can be setup to get its time from Peer time servers and server time that way without a GPS signal.

Does it support ptp profile g.8275.2?

Yes, it supports the Telecom profile.

What is the current requirement (amps)? What is the input voltage tolerance?

Total current draw is under an Amp. Higher draw at startup to warm up the OCXO. The input voltage regulator is tolerant of a wide range of voltages, but 9-14V should be just fine, this has not been extensively tested. Contact the manufacturer directly with specific requirements.

Timemachines Ptp Ntp Network Time Server Tm2000b

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Description

⏳ Own the Time, Own the Network – Never Miss a Beat!

BUILT IN OCXO STABILITY - Maintains flawless time even during GPS signal loss with advanced holdover technology.
COMPACT FLEXIBLE PLACEMENT - Small footprint and high-sensitivity GPS antenna enable easy installation anywhere—even indoors.
SEAMLESS NETWORK INTEGRATION - Supports both PTP and NTP protocols for versatile compatibility across all your devices.
PRECISION TIME ZERO DOWNTIME - Stratum 1 GPS time source ensures ultra-accurate network synchronization without internet dependency.
PLUG AND PLAY WITH PRO GRADE RELIABILITY - Includes GPS patch antenna and power supply for rapid setup and immediate network time mastery.

The TimeMachines TM2000B is a compact, GPS-based Stratum 1 network time server delivering ultra-precise time synchronization via PTP and NTP protocols. Featuring a high-stability OCXO clock for reliable holdover during GPS outages, it includes a built-in high-sensitivity GPS antenna and power supply for easy indoor installation without external antennas. Ideal for professional networks requiring accurate, internet-independent time sources.

Reviews

P**R

4.07.2025

J**G

24.08.2019

E**N

6.08.2022

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TimeMachines, PTP/NTP Network Time Server TM2000B

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