A 10-dB Directional Coupler manufactured by Narda, model number 3000-10, is on offer. The frequency range is 225 MHz to 460 MHz.  The average mainline insertion loss is 1.39 dB. The average coupling is 10.59 dB.The average directivity is 46.00 dB.

Measurements were made with cared-for, but ultimately uncalibrated, hobby-grade equipment so interpret the data presented here accordingly.

The unit has an F-N connector on each end. From the datasheet:
    Frequency Range: 225 - 460 MHz
    Insertion Loss, Coupled Power Excluded: 0.20 dB
    Maximum Deviation from Nominal: +/- 1.2 dB
    Average Power: 200 W
    Peak Power: 10 kW
    Connectors: F-N

This is a 50 Ohm device, tested in a 50 Ohm environment. It is used and in working condition, with signs of normal use and wear. The Narda 3000-10 unit, shown in the photos, is the only item included in this listing. The photos were taken on a 1 cm grid. Returns accepted only when the serial number matches the original item purchased. I will combine multiple items together to reduce shipping costs and will mail one or two business days after receiving cleared payment. 

Questions are welcome. Thanks for stopping by!