Product Overview
PolyPhaser IS-TT50HN-B UHF Surge Protector 380-430MHz 50 Ohm DC Block 750W
Condition
Single unit available. Used and in good condition — recovered from decommissioned equipment via government surplus channels. No damage or abnormalities observed. Evaluation: Visual inspection only. Function testing not performed. Note: the internal gas discharge tube condition cannot be confirmed without testing; verify suitability before installation in a surge-critical path.
Ships same business day from Idaho. Packed carefully.
Product Overview
PolyPhaser IS-TT50HN-B is a coaxial RF surge protector and UHF combiner rated for 380 to 430 MHz with 750W maximum power handling. It uses DC block technology to divert lightning energy and transient surges to ground while passing UHF signals inline. Engineered for telecommunications towers, two-way radio repeaters, and public safety communication infrastructure where equipment protection and uptime are non-negotiable.
Key Features
- Frequency range: 380-430 MHz (UHF)
- Power handling: 750W maximum
- Impedance: 50 ohms
- Technology: DC block surge arrestor — diverts transient energy to ground, blocks DC on center conductor
- Connector type: Type N — connector gender not confirmed; verify against your cable configuration before ordering
- Protects against lightning strikes, EMP, and transient power surges on antenna feedlines
- Rugged construction rated for telecom and broadcast environments
Applications
- Two-way radio and UHF repeater stations
- Public safety and emergency communications networks
- Telecommunications tower antenna feedline protection
- Land mobile radio (LMR) infrastructure
- Amateur radio UHF installations (440 MHz band)
Frequently Asked Questions
What connector type does this unit use?
Type N connectors. Connector gender (Female/Female or Male/Female) is not confirmed — inspect the unit on arrival or contact us before ordering if your installation requires a specific gender configuration.
Will this work outside the 380-430 MHz range?
No. This unit is optimized for 380-430 MHz. Use outside this band will cause high insertion loss and poor VSWR. For other frequency ranges, a different PolyPhaser model is required.
Has the internal gas discharge tube been spent?
Not confirmed. The unit shows no visible external damage, but internal GDT condition cannot be verified without testing. Evaluate accordingly before deploying in a surge-critical installation.
What impedance system does this fit?
50-ohm coaxial systems. It is not compatible with 75-ohm cable television or broadcast distribution networks.
What is included with the unit?
The IS-TT50HN-B unit only. No mounting hardware, documentation, or accessories are included.
Recovered from decommissioned government equipment and inspected by our team. A capable unit for any 380-430 MHz installation needing proven PolyPhaser surge protection.
