Description
Description
The Andrew 277SEM is a straight, fixed-tuned brass connector designed for Andrew HELIAX EW77 elliptical waveguide, including compatible premium EWP77 variants.
It transitions elliptical waveguide to a PDR70 rectangular waveguide flange, allowing connection to compatible microwave antennas, radio equipment, and other waveguide components.
The connector operates between 7.125 and 8.5 GHz and supports pressurized waveguide systems. It can be installed using tab-flare or tool-flare attachment methods.
Typical applications include point-to-point microwave links, telecommunications towers, and microwave backhaul installations.
Technical Specifications
|
Specification |
Description |
|---|---|
|
Manufacturer |
Andrew / Amphenol |
|
Former Brand |
CommScope |
|
Part Number |
277SEM |
|
Product Type |
Elliptical Waveguide Connector |
|
Compatible Waveguide |
EW77 / compatible EWP77 variants |
|
Frequency Range |
7.125–8.5 GHz |
|
Flange Interface |
PDR70 |
|
Rectangular Waveguide Size |
WR137 / WG14 / R70 |
|
Connector Style |
Straight, Fixed-Tuned |
|
Attachment Method |
Tab-Flare / Tool-Flare |
|
Material |
Brass |
|
Plating |
Unplated |
|
Pressurizable |
Yes |
|
Typical Insertion Loss |
0.01 dB |
|
Maximum Peak Power |
92 kW at 6.0 GHz (manufacturer's stated reference point) |
|
Width |
3.48 inches |
|
Length |
4.43 inches |
|
Transition Length |
2.97 inches |
|
Net Weight |
2.866 lbs |
|
Operating Temperature |
-55°C to +85°C |
