26MHz Low Power GPS frequency standard 0,001ppm for Pluto SDR etc.

This frequency standard named GPSDXO provides a highly accurate clock/frequency source through syncronisation through GPS/GLONASS Satellite navigation system.
 

Initally designed to improve the frequency stability  and accuracy of the Octagon television LNB, it can also be used
to control any Converter that uses 26MHz as master clock.

The XO output level is TTL 3.3V and can be used with no big changes as a replacement of an internal 26 MHz crystal.

IN this offer, you buy the verison "G26H" which offers:

+ 26MHz oscillator output (3.3V High, 0V Low level, 5nS fall/rise time max)
+ 6,5MHz Square TTL output
+ 1pps (one pulse per second 3,3V TTL)

The core of the device consists of a simple voltage controlled crystal oscillator which is disciplined through the 1pps signal from GPS/GLONASS.

During the development process we have focussed mainly on cost and power consuption. To reach these goals, there is no temperature or oven controlled oscillator. Though increased termal decoupling, a good ratio between price and performance could be achieved.

The unit's firmware can be updated over USB and thus can profit from improvements and bug fixes. Furthermore, the current deviation is sent in text for ouver the serial USB link.(virtual COM port).
There is no USB power supply included! You can use any cell phone charging adapter, power bank, computer or source that provides more than 200mA at 5V at its USB port.

Phase noise

Typical phase noise of the internal crystal oscillator, distance to base frequency in dBc/Hz (normalised to 1Hz BW)

Features of the integrated GPS/GLONASS receiver

• newest MT3333 Chip set

• 33 tracking/99 Akquisition channels

• Supports QZSS, SBAS, Anti-Jamming

• Sensitivity -165dBm

• 5V phantom power supply for any GPS Antenna (max. 100mA current)

• Fast start through Backup-Battery cell 3V (3025) (not included!)