Description: Item Description: For sale today is one board with a new old stock 10MHz Double Oven OCXO and a four output isolated distribution amplifier. The OCXO on this board takes about 15 to 20 minutes to reach temperature. A precision reference and 25 turn pot are used to fine tune (+/-3Hz) the OCXO. The OCXO will be adjusted to match a GPSDO after a one hour warmup. The OCXO adjustment should be repeated after about 30-60 days of operation for best results. The BNC connectors are from AMP/TYCO not the cheap Chinese stuff. Nuts and washers for the BNC connectors are included. See my other listings for a 4 channel expansion board (not included) that will work with this board. Condition: This is a new (for now hand assembled) board that has a new old stock double oven 10MHz OCXO with four 50 ohm isolated outputs. Max output (adjustable) is about 15dBm into 50 ohms. The spectrum analyzer screen shot is at about +2dBm output with a 10dB attenuator between the output and the spectrum analyzer input. Power required is 12VDC at 550mA at startup and about 300mA with the oven at temperature. The power supply is not included. The op-amps are rated for 12.5V max, so a well regulated 12V supply should be used. A diode is used to drop the input to about 11.3V for the op-amps. All noise and harmonics are down more than 60dB from the output at 0dBm and about 55 dB down at +15dBm out. The board is approximately 3.725" by 3.9" (BNC side). The BNCs are located on one inch centers and are centered on the board. The board will fit in a Hammond Engineering 1455N1202 enclosure available at Mouser or Digi Key either stand alone or with the expansion board that is in another listing. Unlike other units that share a common driver between outputs, this board has individual drivers for each output. This prevents one output from affecting the others. PayPal Confirmed Address: PayPal address must be confirmed and must be the same as the shipping address. Returns: Returns accepted within 30 days. Feedback: Feedback is important to me, please email or contact me with any concerns, issues or problems before leaving feedback and give me the opportunity to work things out if needed. I always leave positive feedback after receiving feedback from the buyer, that way I know the buyer is happy and the transaction is complete. Shipping: Shipping is to USA only as this board is not RoHS compliant at this time.
Price: 155 USD
Location: New Hartford, Connecticut
End Time: 2024-03-23T23:57:42.000Z
Shipping Cost: N/A USD
Product Images
Item Specifics
Return shipping will be paid by: Buyer
All returns accepted: Returns Accepted
Item must be returned within: 30 Days
Refund will be given as: Money Back
Brand: Unbranded
Model: OCXO and Distribution Amplifier
MPN: Does Not Apply
Country/Region of Manufacture: United States
Modified Item: No
