[time-nuts] Motorola Timing2000 GPS “L1” Antenna

[Gregory Beat]

These Motorola brand GPS “L1” antennas (circa 2000) have appeared on the Surplus market (used, eBay, elsewhere), as Mobile/cellular sites perform upgrades.
Prices / condition range from a Used few $$ to New in Box at $100 + .

Electronic Goldmine (Scottsdale, AZ) has listed the Motorola Timing2000 GPS antenna (they don’t know model) and 
it’s matching Motorola Pole Mount at Electronics Surplus in Mentor, OH

Motorola GCNTM20A3A : Timing2000 Antenna (Outdoor), Goldmine.
https://theelectronicgoldmine.com/products/g28183

• L1 (1575.42 MHz) +/- 2 MHz Operating frequency
• 25dB Active antenna
• 5 Volt operation (internal pre-amp)
• 26mA typical current consumption
• High strength direct mount
• <1.5dB typical noise figure 
• 40dB minimum filtering at +/-50MHz

DATA SHEET for Motorola Timing 2000 Antenna (GCNTM20A3A)
http://mpl.jp/pdf_data/timing2000.pdf

Electronic Surplus (Mentor, OH)
Pole mount for Motorola outdoor GPS antennas (circa mid-1990s to early 2000s),
with 1-1/8” hole, works as mount for other GPS or vertical antennas.
https://www.electronicsurplus.com/motorola-inc-mnt62312b1-hardware-post-mounting-bracket

Motorola # MNT62312B1 : Antenna Pole/Post Mounting bracket
Right-Angle 2-5/8" Wide x 4-3/8" Long
1-1/8" Diameter Hole for antenna mount
Base has with four 1/2" x 1/4" slots

U-Bolts for 1 1/2" Diameter Pipe

Two 2" x 3", U-Bolts Threaded 1/4"-20 with Lock Washers and Nuts,