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Kadimendium OCXO 10MHz Frequency Standard Reference Module Crystal Oscillator Constant Temperature Board OCXO Frequency Reference Source Board

4.9 (2) Write Review
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$18.59

$ 8 .99 $8.99

In Stock
  • SMA INTERFACE:The reference source module has SMA female interface, with ultra low phase noise, crystal oscillator constant temperature module connection and
  • HIGH PERFORMANCE: Constant temperature module using excellent PCB component, this OCXO frequency module has high calibration accuracy, good frequency stability and low loss，very practical
  • EASY TO REPLACE: OCXO Frequency reference module to replace the old, broken or damaged one with this crystal oscillator frequency reference board, to ensure stable of the device.
  • SPECIFICATION SIZE:Calibration accuracy: ±0.01Hz,output impedance: 50Ω,interface type: SMA female，frequency stability: 5e-12，package list:1 x module，1 x cable
  • APPLICABLE DEVICE:Crystal oscillator suitable for instrument standard such as audio system, decoder, shortwave radio, frequency meter, source, etc., convenient and practical


Product Description

B0B7S8FHJL海报图

Specification

Item Type Frequency Standard Reference Module
Current Consumption Preheating stage <750mA, working stage <300mA
Warm Up Time About 5 minutes
Calibration Accuracy ±0.01Hz
Frequency Stability 5e-12
Output Level :
DBm 10dBm±2dBm at 50Ω;
VRMS 0.7071V at 50Ω;
VPeak 1.0V at 50Ω;
VP P 2.0V at 50Ω
Output Impedance 50Ω
Interface Type SMA Female
Product Use Constant temperature 10MHz, ultra low phase noise, frequency reference module, frequency reference source, OCXO frequency reference source, used for instrument benchmarks such as audio systems, decoders, shortwave radios, frequency meters, signal sources, etc.
Package List 1 x Module + 1 x Cable

mando_ray
2025-01-23 17:55:33
OK, so it's a decent board to support the CTI 5a2b02 OCXO. The one I got has all the parts. The current draw once stabilized is about 200mA with 12V supply. I beat it against WWV and was not able to get it to sync unless I shorted R3. In it's designed configuration, the 200k pot only moves the oscillator control voltage about 200mV. The oscillator control voltage is allowed to vary between 0 and 4V. Shorting R3 allowed me to sync this perfectly against WWV using a Kenwood TS940 in CW narrow mode. Surprisingly my Chinese Oscillator/Counter was almost dead on when it was synced. My old Heathkit was high by about 17 Hz. Vout for the sine wave was about 2Vpp and looked great on my scope. Vout for the TTL was about 2.5Vpp, and was not so great, but probably would look better with a good termination. Anyway, for the price they work great for a frequency standard. They seem to be fairly stable once they warm up. Not sure how they do for long duration. I was going to buy a GPS disciplined oscillator, but I think that is just one of these with the GPS rx and a microcontroller with a PWM output to the Oscillator control voltage.
G. D. Golden
2024-12-13 17:12:39
Works. Adjustable with 10-turn pot over about +/-1 Hz relative to 10 MHz, so capable of setting pretty precisely. Oven temp (hence freq) stabilizes in about 30 mins or so. Based on a CTI part.Sine output is only roughly sinusoidal (closer to triangular actually), but the so-called "TTL" output is nowhere near valid TTL levels. I bought two of these, and on both, the "TTL" output swing was from about +1V to about +4V. So beware.EDIT, January 10, 2023: I upgraded my review to 4 stars (originally gave it 3). I've been using these things now for several months, and have to say that they do seem to be decent, stable oscillators, at a reasonable price point. The ones I've got seem to stay on frequency within about 0.05 Hz over a fairly wide ambient temp range, and given the 10-turn adjustment pot (which adjusts over about +/-1 Hz) it is possible -- if you're patient and use a scope to do phase comparison vs. a higher stability reference -- to set them within about 0.01 - 0.02 Hz of 10 MHz, and actually have them remain thereafter within around 0.05 for several days. I have no other complaints other than the originally noted flaw that the "TTL" output is not really valid TTL levels.