Model 1083B GPS Satellite-Controlled Frequency Standard

Model 1083B Frequency Standard/Comparator delivers performance comparable to atomic frequency standards, but at a fraction of the price.

Model 1083B User Manual
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Model 1083B Data Sheet
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Get atomic frequency references at a fraction of the cost, using Model 1083B GPS Satellite-Controlled Frequency Standard/Comparator.

Suitable for use as the frequency reference for counters and signal generators, or for multiplication to microwave frequencies, Model 1083B features standard sine wave outputs of 1 Mhz, 5 Mhz and 10 Mhz with outstanding spectral purity and long-term stability.

The base price includes three sine wave (any combination of 1 MHz, 5 MHz, or 10 MHz) and one 1 PPS square wave. Optionally, up to five additional sine wave outputs are available in any combination of 1 MHz, 5 MHz, and 10 MHz.

A frequency measurement option allows the 1083B to measure the deviation and Allan Variance of a 1 MHz, 5 MHz, or 10 MHz signal and the deviation of a 1 PPS signal. As with all Arbiter GPS based clocks, the 1083B includes a GPS Data Backup Battery improving acquisition time and supplying constant power to the real-time click and RAM in the GPS receiver module.

Key Features
Specs
Options
Accessories
Software
Firmware
Related Resources

Atomic frequency performance at low cost
Produces traceable standard frequencies at 1 MHz, 5 MHz and 10 MHz
1 PPS output provided for time standard applications
Supports up to eight outputs

Receiver Characteristics

Timing Accuracy

Accuracy Note	Specifications apply at the 1 PPS output, in the presence of Selective Availability (SA), as of date of publication.
Accuracy UTC/USNO	±150 ns peak
Typical	< ±40 ns rms, over 24 hours

Position Accuracy

10 meters, rms, 90% confidence.

Satellite Tracking

Twelve (12) channel, C/A code (1575.42 MHz). Receiver simultaneously tracks up to twelve satellites. Results from all tracked satellites are averaged in Position-Hold Mode or, with Position-Hold Mode off, using least-squares estimation.

Acquisition

150 seconds typical, cold start
15 minutes, 90% confidence, cold start
40 seconds, with almanac less than 1 month old
15 seconds, with ephemeris less than 4 hours old
The GPS Data Backup Battery is included in the Model 1083B. This feature improves acquisition time by supplying constant power to the real-time clock and RAM in the GPS receiver module.

Oscillator

Type	Wenzel Streamline 10 MHz, third-overtone SC-cut ovenized
Stability	1 day: 1.0x10^-9; Over Temperature: 1.5x10^-8
Warm-up	Six Hours
Allan Variance	After warmup; locked to GPS, including the effects of SA. 1 second: 5.0x10^-11 1 day: 5x10^-13

I/O Configuration

Output Connectors

Four 50-ohm BNC

Three sine wave
One 1 PPS

Output Signals

Sine wave: 1 MHz, 5 MHz, and 10 MHz, +11 dbm (2.5 Vpp) nominal into 50 ohms

1 PPS: 5 V CMOS; 10 ohms source impedance; drive capability ±75 mA

Input Connectors

One 50-ohm BNC or High Impedance

Input Signals

Sine wave: 1 MHz, 5 MHz, and 10 MHz

1 PPS

Interface

Operator

Display	2 x 20 character vacuum fluorescent
Functions	Time: UTC or local Position: latitude, longitude, altitude Receiver and clock status 1 PPS (input) deviation
Status LEDs	Operate (green) Stabilized (green) Unlocked (red) Fault (red)
Setup	Local time offset Daylight Saving Time: On/Off/Automatic Out-of-Lock time: 1 to 99 minutes, Off, or Zero Delay Cable delay Clock offset Frequency/Time Measurement: 1 MHz, 5 MHz, 10 MHz, 1 PPS, Deviation/Allan Variance, Interval, Data Points, Termination Auto-Survey: On/Off, Survey duration Position Hold: Off/3D/Altitude Serial port: RS-232
Input LED	50 ohm (green) 1 PPS (green) 1 MHz (green) 5 MHz (green) 10 MHz indicated by illumination of the 1 MHz and 5 MHz LEDs

System

RS-232	1200 to 19,200 baud; 7 or 8 data bits; 1 or 2 stop bits; even/odd/no parity
Broadcast modes	Extended ASCII ASCII with Time Quality ASCII with Time Quality and Year Vorne large-display time Measurement Deviation
Connector	Male 9-pin D-sub (TXD, RXD)

Power Requirements

Standard

Voltage	85 to 264 Vac, 47 to 440 Hz, 20 VA maximum or 110 to 370 Vdc, 15 W maximum
Inlet	IEC-320 with fuse and mating cordset. Specify option P01 - P10 Available cordset plug style and specifications are described in the Options and Accessories section

General

Physical

Size	1 RU rack mount or tabletop, 260 mm deep FMS, Rack mounts included. 508 x 381 x 203 mm (20 x 15 x 8 in.), shipping
Weight	2 kg (4.5 lbs), net 5.5 kg (12 lbs), shipping
Antenna	Cable Connection: F-type Size: 77.5 dia. x 66.2 mm (3.05 x 2.61 in.) Weight: 170 grams (6.0 oz)
Antenna Cable	Type: RG-6, 15 m (50 ft) provided Weight: 0.69 kg (1.52 lbs) per 15 m
Mounting	0.75 in. pipe (1 in. - 14 marine) thread

Environmental

Temperature	Operating: 0 °C to +50 °C (-20 °C to +70 °C typical) Nonoperating: -40 °C to +75 °C
Humidity	Noncondensing
EMC	Radiated susceptibility: passes walkie-talkie test. Conducted emissions: power supply complies with FCC 20780, Class A and VDE 0871/6.78 Class A

Certificates and Approvals

CE mark/label and certificate

Options may be ordered in any combination except where noted otherwise. The available options are listed below and described in the Options and AccessoriesOptions and Accessories section.

I/O
1083Bopt09	Frequency/Time Interval Measurement
1083Boptxy	1 MHz Sine Wave, BNC
1083Boptxy	5 MHz Sine Wave, BNC
1083Boptxy	10 MHz Sine Wave, BNC

Included
AS0028200	19 Inch Rack Mount Kit
AS0059000	Operation Manual (1083B)
AS0087800	Arbiter Universal GPS Antenna
CA0021315	15 m (50 ft) RG-6 Antenna Cable
P01-P10	Country specific power cord with straight female end
Available
AP0013400	GPS Antenna Cable Splitter, F-Type, 950-2150 MHz, One Port Pass DC
AS0033100	Rack Slide Kit
AS0044600	GPS Antenna Mounting Kit
AS0044700 ¹	21 dB In-Line Pre-amplifier
AS0048900	Antenna Grounding Block Kit
AS0056600	24 Inch Rack Mount Kit
AS0094500	GPS Surge Protector
CA0019806	RS-232 Null Modem Cable, DB9F-DB9F, 2 m (6 ft) length
CA0021302	2 m (6 ft) RG-6 Antenna Cable
CA0021306	6 m (20 ft) RG-6 Antenna Cable
CA0021330	30 m (100 ft) RG-6 Antenna Cable
CA0021345	45 m (150 ft) RG-6 Antenna Cable
CA0021360	60 m (200 ft) RG-6 Antenna Cable
CA0021375	75 m (250 ft) RG-6 Antenna Cable
CN0027700	Type F, Male, RG-6 Antenna Cable Crimp-on Connector
CN0027800	Type F, Male, RG-11 Antenna Cable Crimp-on Connector
TF0006000	Type F, RG-11 Antenna Cable Crimp Tool
TF0006400	Type F, RG-6 Antenna Cable Crimp Tool
TF0013200	Antenna Cable Stripping Tool, RG-6
TF0013300	Antenna Cable Stripping Tool, RG-11
WC0004900	300 m (1000 ft) Roll RG-11 Cable
WC0005000	300 m (1000 ft) Roll RG-6 Cable

¹ Used for cable lengths greater than 75m (250ft)

No software downloads available for this product

No additional software information is available for this product

Firmware Information (EPROM based firmware is not available for download)
1083B_Firmware_10Apr2007	Requires an EPROM update from Arbiter.
1083B_Measurement_Board_Firmware_12Dec2006	Requires an EPROM update from Arbiter.

Firmware Version and Related Information

EPROM Update (1083B_Firmware)

Version	Version Notes
10Apr2007	Replaced latitude, longitude and altitude receiver functions with php() position function

EPROM Update (1083B_Measurement_Board_Firmware)

Version	Version Notes
12Dec2006	Changed status flags to allow update of 1pps and freq offset results.

GPS Antenna Mounting Bracket
Download antenna_mnt_bracket_brief.pdf (462 kB) »

GPS Antenna Mounting Bracket Instructions
Download pd0024700_gps_antenna_mounting_bracket.pdf (580 kB) »

GPS Antenna Preamplifier Installation Instructions
Download pd0025300a_gps_antenna_preamplifier.pdf (153 kB) »

Chassis Dimensions
Download chassis.pdf (27 kB) »

GPS Surge Protector Installation Instructions
Download pd0045800_surge_protector_installation_instructions.pdf (80 kB) »

Catalogo de Productos de Sincronizacion y Frecuencia
Download catalogo_de_productos_de_sincronizacion_y_frecuencia.pdf (216 kB) »