OCXO referemce oscillator |
Temperatureeffect (O to 45℃) | ≤1×10^-7 |
Aging (35℃) | ≤2×10^-7/year |
DC voltmeter | 0 to &plu*n;30 V |
DC ammeter | 0to &plu*n;10A |
Operating modes | currentaveraging with PDC-adapted time constant,peak current measure-ment (positive andnegative) |
Common-mode rejection | &plu*n;30V |
Resistance | 50 mΩ |
Receiver measurements |
RFgenerator |
Frequency ranges | 810 to 826 MHz
860 to 885 MHz
1477 to 1501 MHz |
Channelspacing | 25 kHz |
Resolution | 1Hz |
Frdquency drift | sameas reference frequency |
Outputlevel | RF IN/OUT RF OUT 2 | -119 to -27 dBm -70 to 0 dBm |
Resolutionof level setting | 0.1 dB |
Level accuracy | RF IN/OUT
RF OUT 2 | &plu*n;1.5 dB
&plu*n;2 dB |
Carrier offset | ≤-25dBc |
Vectcr error | 4°rms |
Modulation | to RCR-STD27 |
Signal purity |
Adjacent-channelleakage power |
(BW=21 kHz) | ≤-50 dB(50 kHz carrier offset)
≤-60 dB(100 kHz carrier offset) |
Harmonics | ≤-20 dBc |
BER measurements |
Synchronizationrange | 0 to 10% |
Meas.rangeafter synchronization | 0 to 25% |
Resolution | 0.01% |
Measured bit length | 2240to 44800 |
Input tran*ission rate | ≤-50kbit/s |
Tran*itter measurements |
Receive section |
Frequencyranges | 915 to 956 MHz
1429to 1453 MHz |
Channel spacing | 25kHz |
Frequency drift | sameas reference frequency |
Input level | RF IN/OUT
RF IN 2 | 5 to 37 dBm
-20to -2 dBm |
Meawurement ofadjacent-channel power |
Me*urement range(BW=21kHz) | ≥-53 dB(50 kHz carrier offset)
≥-63 dB(100 kHz carrier offset) |
Inherent noise | RFIN/OUT
RF IN 2 | ≤-65 dBm
≤-75 dBm |
VSWR | ≤1.3(into 50Ω) |
Time-axis meawurement |
Resolution | 1/2sybol(approx 12 μs) |
Modulationmeawurements |
Frequency offset measurement range | &plu*n;4kHz |
Frequency measurement accuracy | 10 Hz + reference frequencydrift |
Resolution | 1Hz |
Mldulation accuracy meas.range | 0to 30% |
Resolution | 0.1% |
Accuracy | meas.value≤2%rms meas.value>2% rms | (1.0+reading×3%)%rms (2.0+reading×3%)% rms |
Inherent offset |
(at-25 dBc carrier offset) | &plu*n;2dB |
Measurement of tran*ission rate |
Measurement range | &plu*n;5ppm |
Resolution | 0.1ppm |
Interfaces |
Remote control | IEC625-2(IEEE488) |
Printer | Centronics(25-contact) |
Data input | BNC,≤50 kbit/s |
External reference input | BNC,TTL(CMOS) |
Impedance | 100 kΩ |
