1Starbrite's profile

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Sunday, November 23rd, 2025 12:33 PM

12 DB attenuator for Xfinity Enhanced Speed areas

My service area was recently upgraded to the enhanced speed tiers. Where can I acquire a 12 DB PAD (attenuator)? My concern is the UPLOAD & OFDMA.

Channel 1-32 Download channels: -1 to 1 DB.

OFDM is 1 DB for 611 MHZ

OFDM is 3 DB for 803 MHZ

UPLOAD 49-50 DB for 4 channels

OFDMA 57 DB 

Xfinity my modem has not been rebooting so that's good. 

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Expert

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114.6K Messages

15 hours ago

You don't need an attenuator ! The upstream power is already too high (out of spec on the upstream OFDMA channel) ! An overall attenuator pad will only make it higher / worse. You need to have the attenuation reduced / improve the connection quality. It's a problem just waiting to happen ! You may even need to use a drop amp with an active return to lower that upstream power.

(edited)

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