3203A SAASM SOLUTION

The ptf 3203A SAASM solution is a unique configuration that couples the latest in SAASM capability to a full featured time and frequency GPS unit.

The ptf 3203A SAASM solution adds a special interface to allow the unit to operate with the highly popular Rockwell Collins DAGR handheld SAASM receiver (available separately from Rockwell Collins to authorized users), allowing the unit to be used in critical field applications. Available in both 1U (3203A) and 2U (3204A) versions, the units can be configured as a high
performance frequency standard, a comprehensive time standard, or both.

Performance is application tailored with local oscillator options including rubidium(standard), and OCXO.

In standard configration, the unit is equipped with 10MHz, 1PPS and IRIG B(am) outputs. Additional options for other output frequencies are also available. Internal RF distribution can be fitted to provide up to 10(3203A) or 20(3204A)10MHz outputs .
In addition to the standard 1PPS and IRIG B outputs the unit provides NTP. The 1PPS output is accurate within <120ns (1 sigma) of UTC(USNO).

• GPS Tracking: 12 parallel channel
• TTFF: <100s (cold start)
• Accuracy (1PPS): <120ns
• 100/10 Base T Ethernet
• NTP, Telnet
• Monitor/Control i/f
• Alarm indicator and output
• 1MHz, 5MHz o/p options
• SAASM receiver not included
• Rubidium and OCXO options
• Available in 1U(3203A) and 2U(3204A)

Electrical
Front Panel Display Vacuum Fluorescent

RF Outputs*  
10MHz sine wave 1V rms into 50 ohms

* Standard configuration offers 10MHz sine
wave, IRIG B(am) and 1PPS outputs

Digital Outputs  
1PPS 5V CMOS into 50 ohms
Prog 5V CMOS into 50 ohms
Pulse Rates  
(1PPS to 10MPPS)  

100/10 Ethernet i/f RJ-45 Connector
Telnet monitoring/configuration/control
HTTP configuration control
DHCP TCP/IP auto configuration
NTP

Digital Input  
1PPS (DAGR interface)

Serial Interface  
RS232 Control/Monitor(DB9)
RS232(opt) Time Output(DB9)

Timing Outputs  
IRIG B(am) 3v p-p into 600 ohm
IRIG B(DCLS) 5V into 50 ohm
IEEE 1344 compliant  

Accuracy  
10MHz <2E-12 (Locked to GPS)
1PPS <120ns wrt UTC (1 sigma)
NTP <10ms (typical)
Stability (Allan Deviation)

    OCXO   RUB
100s   5E-11   3E-11
1000s   2E-11   2E-11
10000s   2E-12   3E-12

Aging

    OCXO   RUB
1day   1E-9   1.7E-12
1 month       5E-11
1 year       5E-10

Phase Noise(SSB)

    OCXO   RUB (H)
1Hz   -94dBc   -90dBc
10Hz   -125dBc   -135dBc
100Hz   -155dBc   -140dBc
1000Hz   -162dBc   -150dBc
10kHz   -162dBc   -150dBc

Spurious (OCXO option)  
Offset from carrier  
1kHz to 200kHz <-100dBc
200kHz to 1MHz <-80dBc
1MHz to 10MHz <-80dBc

Front Panel  
Indicators  
Fault Amber LED
Lock Green LED
Power Green LED

3203A SAASM SOLUTION PDF DOCUMENT