| Type of
receiver: |
Narrowband DCF77 quadrature
receiver with automatic gain control, bandwidth:
approx. 20Hz |
| Type of
antenna: |
Modified active ferrite
antenna AW02 |
|
Display: |
8 digits alphanumeric dot
matrix display, digit size 5 mm |
| Cable
type: |
Coaxial cable RG58 indoor
or outdoor usage (BNC-, N-Norm-connector) |
| Status
info: |
Indication of a DCF-signal
with at least minimum field strength by
'Feld'-LED
'Syn.'-LED indicates the calculation of an
insufficient correlation coefficient (strong
interference or loss of reception)
The 'Freil.'-LED indicates that the internal
hardware clock is not synchronized by DCF77 |
| Synchronization
time: |
2-3 minutes after correct
DCF77 signal reception |
| Accuracy free
run: |
Accuracy in case of lost
reception: ±1·10E-8 for one hour |
| Frequency
outputs: |
77.5 kHz, 155 kHz, 310 kHz,
100 kHz, 1 MHz, 10 MHz standard frequencies,
TTL-level
DDS-frequency synthesizer with TTL, sine wave and
open drain outputs, 1/3 Hz...9.999 MHz |
| Accuracy of
frequency outputs: |
Short term stability:
±5·10-9 (standard
frequencies and synthesizer up to 10 kHz)
±2.35 mHz for synthesizer frequency > 10
kHz
Holdover: ±1·10-8 for one
hour |
| Pulse
outputs: |
High and low active pulses
per second and per minute (TTL-level), pulse
duration 200 msec |
| Accuracy of pulse
outputs: |
Time delay between two
systems with max. distance of 50 km: typ. 20
µsec, max 50 µsec
Time shift of successive pulses: max 1.5
µsec |
|
Interface: |
Two independent serial
RS232-interfaces, menu configurable |
| Data format of
interfaces: |
Baudrate: 600, 1200, 2400,
9600 baud
Framing: 7O2, 7N2, 7E1, 7E2, 8N1, 8N2, 8E1
Output string: 32 ASCII characters with date,
time and status information |
| Dimensions of the
front panel: |
12HP/3U (60mm x 128mm) |
| Electrical
connectors: |
64-pin rear VG edge
connector DIN 41612
SMB male connector |
| Power
supply: |
+5V DC |
| Power
consumption: |
1.6 W |
| Backup battery
type: |
When main power supply
fails, hardware clock runs free on quartz basis,
life time of lithium battery min. 10 years |
|
Firmware: |
Flash-EPROM, bootstrap
loader |
| Current
consumption: |
ca. 330 mA |
| Board
type: |
Eurocard |
| Board
dimensions: |
160mm x 100mm , 1,5mm
Epoxy |
| Ambient
temperature: |
0 ... 50°C / 32 ...
122°F |
|
Humidity: |
Max. 85% |
| Scope of
supply: |
Scope of supply includes an
active ferrite antenna AI01 and 5m of RG174 coaxial cable
with BNC connectors.
Optional: AW02 with RG58
and patch cord, other length of cable |
|
Options: |
OCXO version:
Short term stability: ±1·10E-9
Holdover: ±2·10E-8 for one day |
