Model 5112 Phase Locked Oscillator


Designed to replace the crystal oscillator LO chain in the DB6NT 10GHz Transverter unit used by Amateur Radio Microwave operators.

Now there is an alternative to the unstable crystal oscillator chain that drifts constantly. The Model 5112 allows precise receiver/transmitter frequency control using a stable external 10 MHz reference oscillator like a TCXO, Oven Controlled Oscillator or a Rubidium Oscillator. The Model 5112 may used to replace any Local Oscillator chain by providing an external X2 multiplier ahead of any 10GHz mixer assembly. Interface to the DB6NT 10GHz Transverter would be through the last X4 multiplier stage modified to be a X2 multiplier stage. This modification is very easy to implement.

The Model 5112 outputs one of 8 selectable frequencies listed in Table 1 to provide Local Oscillator frequencies for 144MHz IF's, 432MHz IF's, 28MHz IF's, and as a frequency standard for 10,368.0MHz and 10,368.2MHz when used with an external X2 Multiplier unit.


Table 1 - Model 5112 Frequency Options

Frequency Option
Multiplier
LO Frequency
IF Frequency
5112MHz
X2
10224MHz
144MHz
5111.5MHz
X2
10223MHz
145MHz
4968MHz
X2
9936MHz
432MHz
4967.5MHz
X2
9935MHz
433MHz
5170MHz
X2
10,340MHz
28MHz
5169.5MHz
X2
10,339MHz
29MHz
5184MHz
X2
10,368MHz
Signal Source
5184.1MHz
X2
10,368.2MHz
Signal Source

NOTE: Custom frequencies are available on special order. Consult JWM Engineering Group for information and pricing.

Specifications
  • 13.8 Vdc @ 200ma typical, designed for battery/remote operations
  • 10 MHz Reference Frequency input
  • +10 dBm RF output minimum, (+12dBm typical)
  • 2nd harmonic is > -38dBc below fundamental
  • Phase Noise -83 dBc/Hz @ 10KHz typical
  • Phase Noise -109 dBc/Hz @ 100KHz typical
  • 500 KHz Reference Spurs > -120 dBc
  • Operating Temperature Range -20 Deg C to +80 Deg C
  • External Lock Signal output provided
  • Small size - 4 3/4" Long x 1 1/2" wide x 1 1/4" high
  • Full 1 Year limited warranty
    • Contact JWM Engineering Group for availability and delivery schedule.

    Link to On-line -> Model 5112 Manual

    The Model 5112 is temporarily unavailable due to a redesign of the product. Please contact JWM Engineering Group, Inc. for further details



    Notice: Prices and Specifications are subject to change without notice. Please contact JWM Engineering Group for the latest prices.