Ah Systems Inc. · Electronic Components
HFR-4
Antenna — Antennas and Waveguides
Part NumberHFR-4
ManufacturerAh Systems Inc.
AvailabilityAvailable to order — request a quote
Specifications
NSN5985-01-546-0598 (NSN)
Federal Item NameANTENNA
Federal Supply Class5985 — Antennas and Waveguides
Mounting Hole Quantity1
Characteristic Impedance In Ohms50.0 SINGLE ANTENNA ELEMENT
Electromagnetic Polarization TypeVERTICAL SINGLE ANTENNA ELEMENT
Mounting MethodBASE
Terminal TypeRECEPTACLE, COAXIAL SINGLE ANTENNA ELEMENT
Coaxial Connector Series DesignatiN SINGLE ANTENNA ELEMENT
Overall Length2.300 INCHES NOMINAL
Frequency Rating5.000 HERTZ MINIMUM SINGLE ANTENNA ELEMENT
Overall Height15.600 INCHES NOMINAL
ESD/EMICode A — ESD/EMI sensitive item
RH Electronics, Inc. — independent stocking distributor since 1982.
Every shipment inspected on receipt · ISO 9001:2015 · ANSI/ESD S20.20 · ERAI member since 1998 · GIDEP participant
Every shipment inspected on receipt · ISO 9001:2015 · ANSI/ESD S20.20 · ERAI member since 1998 · GIDEP participant
Frequently asked
Is HFR-4 available?
We can source HFR-4 even if it isn't in our active stock list. As an independent distributor we reach inventory outside the franchise channel — including hard-to-find and obsolete parts. Send us a quote request.
Is HFR-4 by Ah Systems Inc. obsolete or end-of-life?
We specialize in obsolete, end-of-life, and discontinued components. If HFR-4 has been discontinued, we can often source remaining stock or qualified alternates. Contact us with your quantity and target date.
How does RH Electronics verify parts like HFR-4?
Every incoming shipment is inspected under our ISO 9001:2015 quality system — documentation, markings, and construction checked against known-good references. For deeper analysis, we direct work through accredited independent labs. We've been an ERAI member since 1998 and a GIDEP participant.
Can you find a cross-reference or alternate for HFR-4?
Yes. Our team reads part numbers the way they were designed — decoding family, speed, temperature grade, package, and reliability level — to identify acceptable alternates when the exact part isn't available. Submit a quote request and we'll advise.