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OC-12D 12 Ports Passive Combiner 5-1000 MHz by Blonder Tongue

OC-12D 12 Ports Passive Combiner 5-1000 MHz by Blonder Tongue

OC-12D 12 Ports Passive Combiner 5-1000 MHz by Blonder Tongue

  • $277.50
  • Brand
    Blonder Tongue
  • SKU
  • Weight
    7.00 lbs
  • Warranty
    1 Year
  • Condition
  • Status
Product Questions? Ask Our Experts!
In stock (50 items available)
The OC Series are professional quality, passive output combiners. These units are designed for use in headends to combine the outputs of multiple modulators and processors. The OC Series employs radiation-proof passive components that provide ...
  • Brand
    Blonder Tongue
  • SKU
  • Weight
    7.00 lbs
  • Warranty
    1 Year
  • Condition
  • Status
Questions? Ask our experts!

  • $277.50

The Blonder Tongue OC-12d is a 5 - 1000 MHz passive output combiner with twelve broadband input ports. It is used in headends to combine up to twelve modulators and/or processors. The OC-12d features high isolation between ports and a low net combining loss from each of the twelve inputs. A -20 dB test jack on the front panel permits testing without removing the unit from the headend. Headend output levels may be conveniently adjusted without disconnecting any equipment. Two or more units may be used to provide more than twelve channels in larger systems (i.e. 36, 48, and 60). The OC-12d is a compact, 1.75” high unit designed for mounting in a standard 19" EIA rack.


  • High Isolation Between Ports
  • Built-in Output Test Jack Permits Testing with Uninterrupted Service
  • May Be Used in Larger Systems


  • Frequency Response: 5-1000 MHz
  • Insertion Loss
    • 5-40 MHz: 17.6 dB
    • 40-1000 MHz: 18.2 dB
  • Input Return Loss
    • 5-40 MHz: 26 dB
    • 40-1000 MHz: 20 dB
  • Output Return Loss
    • 5-40 MHz: 9 dB
    • 40-1000 MHz: 16 dB
  • Isolation Between Ports:
    • (1 & 2 or 3 & 4 or 5 & 6 or 7 & 8)
    • 5 to 40 MHz: 38 dB
    • 40 to 1000 MHz: 38 dB
  • Isolation Between any Combination of:
    • (1-2 & 3-4, 5-6 & 7-8, 9-10 & 11-12)
    • 5 to 40 MHz: 55 dB
    • 40 to 1000 MHz: 65 dB
  • Flatness: ±0.2 dB relative to slope
  • Slope (5-1000 MHz): -1.5dB
  • Test Jack: -20 dB
  • Impedance: 75 Ohm


  • Dimensions (W x H x D): 19 x 1.75 x 15.25 in.
  • Shipping Weight: 7.0 lbs.
  • Connections "F" Type
    • Input: 12
    • Output: 1
    • Test: 1 (Front Panel)
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We Offer A 30-Day Money Back Guarantee: 
Our main goal is to ensure your complete satisfaction with our service and products. If, for any reason, you are not 100% satisfied with your purchase, you can return it within 30 days of the purchase date for a full refund. Our 30-day money back guarantee applies to all of the products we sell, except for: TVs and monitors 20" and larger, Special Order merchandise, or any item indicated as non-returnable. Shipping is not refundable. Prior to returning your purchase, a Return Merchandise Authorization (RMA) number will be provided to you.

Refunds on returned items will be issued in the same payment form as received from the customer at the time of purchase. Once we receive the product and it passes inspection, we will credit your account. Please allow 3 - 6 business days for a credit to appear on your account.

If the item was sent back to us for an exchange, please allow 3 - 5 business days for the replacement to be processed.

No Returns/Exchanges on the following:

TVs and monitors 20" and larger
Special Order merchandise
Any item indicated on the website as non-returnable

For more information see our official Return Policy

  • Shipping Info
    We offer free ground shipping on every purchase of $300 and more for US and US territory. We deliver worldwide.
  • Payment Methods

  • Return Policy
    We Offer a 30-Day Money Back Guarantee