Model 1152-A Phase Locked Oscillator

Designed to replace crystal oscillator LO chains for microwave receivers and transmitters used by Amateur Radio operators. Now there is an inexpensive alternative to those unstable high frequency crystal oscillators which drift constantly, allowing precise receiver/transmitter frequency settings using a stable external 10 MHz or 100 MHz reference oscillator like a TCXO, Oven Controlled Oscillator or a Rubidium Oscillator. One of the frequency options allows the Model 1152-A to be used as a Microwave Beacon driver source between 1296.8 MHz to 1297 MHz.

The Model 1152-A outputs one of 8 selectable frequencies listed in Table 1 and Table 2.

Table 1 - Model 1152-A Frequency Options

Frequency Option
Frequency Band
IF Frequency
1152 MHz
  
1296 MHz
144 MHz
1268 MHz
  
1296 MHz
28 MHz
1296.8 MHz
  
1296 MHz
Beacon Source

Using external frequency multipliers, the Model 1152 base frequencies will provide local oscillator power for the following microwave bands, with the corresponding receive/transmit IF frequencies shown in Table 2.

Table 2 - Multiplier Frequency Options

Frequency Option
Multiplier
Frequency Band
IF Frequency
1080 MHz
X2
2304 MHz
144 MHz
1128 MHz
X2
2400 MHz
144 MHz
1104 MHz
X3
3456 MHz
144 MHz
1123.2 MHz
X5
5760 MHz
144 MHz
1136 MHz
X9
10,368 MHz
144 MHz
1104 MHz
X9
10,368 MHz
432 MHz

Typical Unit Performance
  • 13.5 Vdc @ 140ma typical, designed for battery/remote operations
  • 10 MHz or 100 MHz reference frequency input
  • +18 dBm RF output minimum, (+20dBm typical)
  • All harmonics are > -15 dBc below fundamental
  • Phase Noise -70 dBc/Hz @ 1KHz typical
  • Phase Noise -95 dBc/Hz @ 10KHz typical
  • Phase Noise -113 dBc/Hz @ 100KHz typical
  • 200 KHz Reference Spurs > -130 dBc
  • Operating Temperature Range -20 Deg C to +80 Deg C
  • External Lock Signal output provided
  • Small size - 3.75" Long x 1.75" wide x 0.89" high
  • Full 1 Year limited warranty

Link to -> Application Note from Wayne Yoshida, KH6WZ, on his Model 1152 to DEMI 10GHz interface (Caution - an 8 to 10 dB attenuator will be required to interface to your DEMI Transverter.)

Link to -> On-line Model 1152-A Manual

Link to -> Model 1152-A Phase Noise Measurement Plot