R T M 3 2 0 5 U s e r M a n u a l
154
A P P E N D I X K
155
R T M 3 2 0 5 U s e r M a n u a l
S P E C I F I C A T I O N S
System Oscillator Phase Noise Table (dBc/Hz @ 10 MHz):
Ηz
MS-OCXO
HS-OCXO
US-OCXO
Spurs
1
-95
-105
-110
10
-120
-130
-135
-120
100
-135
-140
-148
-115
1k
-145
-150
-152
-125
10k
-145
-150
-153
-125
100k
-145
-150
-153
-110
System Oscillator Phase Noise Table (dBc/Hz @ 5 MHz):
Ηz
MS-OCXO
HS-OCXO
US-OCXO
1
-100
-110
-115
10
-130
-135
-140
100
-140
-145
-152
1k
-150
-155
-155
10k
-150
-155
-155
100k
-150
-155
-155
**
For RTIC Option see
Chapter 11 - Real-Time Ionospheric Corrections, Specifications
.
Optional Outputs
Optional 1 PPS Output:
Signal:
Positive TTL pulse into 50
Ω
.
TTL (50
Ω
to GND): V
OL
(max)=0.4V, V
OH
(min)=2.4V, V
OH
(nom)=2.5V, V
OH
(max)=3.0V.
Width:
User selectable to 20 us, 1 ms, 100 ms, 500 ms.
User-Calibration:
+/- 500 us, 1 ns resolution.
Accuracy:
< 10 nanoseconds RMS to UTC(USNO) when locked.*
Stability:
TDEV < 10 ns @
τ
< 10
5
seconds,
σ
y
(
τ
) < 6.0x10
-14
@
τ
=10
5
secs.
For RTIC Option see
Chapter 11 - Real-Time Ionospheric Corrections, Specifications
.
Rise Time:
< 2 nanoseconds.
Αlignment:
Within 5 ns of the other TTL outputs in this unit (except the optional DDS).
Connector:
Front-panel SMA jack labeled “1PPS”.
Note:
To change the pulse width refer to the
Chapter 10 - Inputs/Outputs, 1PPS Option
.
*See
for details.
Optional AM Code Output:
Signal:
Amplitude-modulated (AM), 3:1 ratio, 1 kHz carrier.
Drive:
1 V
RMS
into 50Ω.
Format:
User selectable to IRIG-B (120/IEEE-1344/C37.118-2005, 122, 123), NASA-36, 2137.
Alignment:
Within 5 us of 1 PPS.
Connector:
Front-panel SMA jack labeled “AMCODE”.
Note:
To change the time code format refer to the
Chapter 10 - Inputs/Outputs, Time Code Output
.
Summary of Contents for RTM3205
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