RF Solution

Palmer's Security Solutions (PSS) has partnered with Overly Door Co. to combine a globally recognized sound-rated solution with our TEMPEST expertise. The result is our patented, user-friendly, and dependable door system that provides sound attenuation and radio frequency protection.


PSS proudly announces that our PSS CT1 – CT2 STC/RF Door Systems have achieved the UL 752 Level 3 Ballistic Rating and the UL 10C 90-Minute Fire Rating. These achievements represent a significant milestone in our ongoing commitment to providing our customers with the highest levels of security and protection.

PSS STC/RF Openings


  • Standard STC rating of 52dB and RF attenuation rating of 40dB, 50dB, and 60dB
  • Split-Frame design provides easy installation and maintenance
  • Fully adjustable seals for sound and radio frequency
  • 10–12-week lead time
  • Expedited shipping options are available
  • Custom wood veneer/finish options
  • All tests performed with hardware to include an S&G 2890-T1, and an LCN 4040XP closer
  • Tests conducted to simulate a typical secure operational environment


  • Wide range of door sizes:
    • Single doors up to 5’ x 12’
    • Double doors up to 10’ x 12’
  • Standard 1 ¾” thick slab for all ratings
  • Compliant with ADA clearance requirements using standard 36” openings
  • Third-party laboratory testing conducted by Keystone Compliance to meet IEEE 299 V6 and MIL-STD-285 standards
  • Accredited by USG for SCIF/SAPF applications

Our PSS STC/RF doors are produced in-house and installed by our certified experts. We also provide specialized installation courses for vendors and new installers to enhance their skills, providing certification to install PSS doors. Explore our training offerings for more information.

Finish/Veneering Options Available:

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What are “Radio Frequencies” and what is the importance of RF energy?

Radio frequencies are electrical currents that pulse at different speeds, measured in Hz. The RF range spans from 3 kHz to 300 GHz, encompassing more than AM/FM radio frequencies (300 kHz to 300 MHz). Government regulations control specific uses at each frequency. As computer technology advances, more intentional and unintentional signals are generated. These vital RF energy signals emanated by standard workplace equipment can be easily interpreted, reconstructed, monitored, and can radiate as electromagnetic waves.

Internal and External

The US government recognizes the threat of RF energy from equipment in offices and facilities and is taking action to protect their resources. RF waves can carry information long distances, so security measures are crucial to prevent RF leaks. RF energy issues work multiple ways: external signals can interfere with sensitive equipment, directed energy can be used for eavesdropping, and high levels can harm humans. To mitigate risks, companies often survey potential locations before constructing facilities for sensitive information processing.

RF Testing on Facilities

RF tests are generally performed for two reasons: to assess a barrier’s ability to attenuate RF energy and to determine the ambient levels that exist in an area. The goal of the tests performed was to determine the attenuation or shielding effectiveness of this area or facility and to determine if the metallic penetrations and cable egress points are a source and pathway for unintended signals to exit/enter the area. These tests, conducted in the field, employ specialized equipment to generate and measure signals at specific frequencies and power levels, ensuring accurate observation and recording.

Main office

7973 Wellingford Drive
Manassas, VA 20109
VA-DCJS License #11-14882

Matthew Palmer

Sales / Estimating

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