Parameters and specifications
frequency range | 9 kHz to 7.5 GHz |
frequency marker readout accuracy |
±(RE × MF + 0.001 × Span) Hz RE: Reference Frequency Error MF: Marker Frequency [Hz] |
reference frequency accuracy | |
initial accuracy at Cal (30 min warm-up) | ±1 x 10-6 |
first year aging, typical | ±1 x 10-6 (1 year) |
cumulative error (Initial accuracy + temperature + aging), typical | 3 x 10-6 (1 year) |
temperature drift | ±0.9 x 10-6 (-10 to 60 °C) |
external reference input | BNC connector, 50 Ω nominal |
external reference input frequency |
every 1 MHz from 1 to 20 MHz plus the following: 1.2288 MHz, 2.048 MHz, 2.4576 MHz, 4.8 MHz, 4.9152 MHz, 9.8304 MHz, 13 MHz, and 19.6608 MHz. the spurious level on the input signal must be less than -80 dBc within 100 kHz offset to avoid on-screen spurious. |
external reference input range | ± 5 ppm |
external reference input level | -10 to +10 dBm |
GNSS | |
accuracy, when locked to GNSS1 | ±0.025 ppm2 |
GNSS Trained Accuracy, when GNSS antenna is disconnected3, 4 |
±0.025 ppm5 ±0.08 ppm6 |
RF input | |
RF Input Impedance | 50 Ω |
RF VSWR (RF Attn = 20 dB), typical |
< 1.2 (10 MHz to 3 GHz) < 1.5 (>3 GHz to 7.5 GHz) |
RF VSWR preamp ON, typical |
< 1.5 (10 MHz to 6 GHz, RF ATT=10 dB, preamp on) < 1.7 (> 6 GHz to 7.5 GHz, RF ATT=10 dB, preamp on) |
maximum RF input level | |
maximum DC voltage | ±40 V (RF input) |
maximum safe input power |
+33 dBm (RF input, 10 MHz to 7.5 GHz, RF Attn ≥ 20 dB) +13 dBm (RF input, 9 kHz to 10 MHz) +20 dBm (RF input, RF Attn < 20 dB) |
maximum safe input power (Preamp On) |
+33 dBm (RF input, 10 MHz to 7.5 GHz, RF Attn ≥ 20 dB) +13 dBm (RF input, 9 kHz to 10 MHz) |
maximum measurable input power |
+30 dBm (RF input, ≥10 MHz to Fmax, RF ATT Auto) +20 dBm (RF input, <10 MHz, RF ATT Auto) |
input RF attenuator | 0 dB to 51 dB (1 dB step) |
amplitude and RF flatness | |
reference level setting range | -170 dBm to +40 dBm, 0.1 dB step, (Standard RF input) |
1Testedusing GPS system.
2Foruse to a stability of ±0.025ppm, the unit should be powered on continuously for 2 to 5 days after initial unpacking.
3Testedusing GPS system.
4For24 hours continuous operation within temperature limits (see footnotes 5 and 6) after GNSS training. Refer to cumulative error specification if operating in GNSS trained mode beyond 24 hours since last training.
5Forless than 3 °C ambient temperature change after training.
6Forless than 10 °C ambient temperature change after training.
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