The Model 111 is a high precision OCXO from CTS Reeves, with a frequency range of 10-120MHz, available in DIP package, ideal for communication as a Stratum 3 reference or as a local oscillator for higher frequency multiplication.
The Model 111 Miniature HF OCXO is a compact, DIP‑packaged oven‑controlled crystal oscillator designed for communications as a Stratum 3 reference or a local oscillator for higher‑frequency multiplication. It offers a frequency range of 10 MHz to 120 MHz, selectable surface‑mount or thru‑hole packaging, and a wide operating temperature range.
Key electrical characteristics include a warm‑up time of 3 minutes to within 1 × 10⁻⁶ of the 60‑minute frequency, turn‑on power up to 4 W, idle power of 1.5 W at +25 °C, and selectable sine or HCMOS output with 50 Ω or up‑to‑50 pF load. Mechanical specifications detail a nickel‑silver finish, solder‑seal storage range of –55 °C to 85 °C, and vibration/shock resistance up to 10 G and 100 G respectively.
| Frequency Range | 10.0 MHz to 120.0 MHz |
|---|---|
| Turn‑on Power | 4.0 W max |
| Idle Power (at +25 °C) | 1.5 W max |
| Output Type | Sine or HCMOS |
| Warm‑up Time | 3 min to within 1×10⁻⁶ of 60 min freq. |
It covers from 10.0 MHz up to 120.0 MHz.
Turn‑on power is up to 4 W, and idle power at +25 °C is up to 1.5 W.
The device can output either a sine wave or an HCMOS waveform.
The OCXO warms up in 3 minutes to within 1 × 10⁻⁶ of its 60‑minute frequency stability.