For messages which must get through, a
portable HF transceiver that combines
Chirrpcomm® spread-spectrum communications
with superior fixed-frequency communications
based on Chirpsounder® frequency management.
Built-in Chirpcomm transmitter and
receiver for highreliability
40-character emergency or orderwire
(circuit coordination)
communications.
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Automaticaily receives and
stores up to 24
Chirpcomm messages without
operator action.
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2-30 MHz bandwidth Chirpcomm
spread-spectrum modulation
ensures reiliability under all
propagation conditions.
Optimum fixed-frequency
communication management provided by
Chirpsounder transmitter and
receiver combined with spectrum
occupancy receiver.
Automatic frequency ranking of any
selected frequency list from 24
lists stored in non-voiatile memory,
eliminating operator frequency
selection tasks.
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Multi-function 25-watt HF
transceiver provides simplex or
half-duplex USB voice, data, or CW
communications.
2-30 MHz full spectrum coverage
synthesized in 10-Hz steps.
2400 channels stored in 24 lists of
100 frequencies.
Menu-driven controls with extensive
prompting for ease of operation.
Low DC power consumption provides up
to 30 hours of operation from one
rechargeable battery pack.
Compatible with BR 7120 or 7057
Automatic Antenna Tuners, 5150
100-watt RFPA, and 6110 AC Line
Power Supply. |
For the first time, all of the field-proven
features that virtualiy guarantee quality HF
communications are incorporated into a
single, battery-powered, portable HF
transceiver. The BR 4280 Tactical Chirpcomm
Transceiver is a Chirpcomm transceiver, a
high-performance 25-watt fixed-frequency
transceiver, and a Chirpsounder-based
frequency management processor all in one
unit. The 4280 eliminates the trial and
error methods of HF radio communications by
providing ultra reliable orderwire and
emergency message communications via
Chirpcomm. In addition, superior
fixed-frequency communications result from
Chirpsounding - the most wideiy used
real-time HF frequency management tool in
use today.
For short message or orderwire traffic,
nothing is easier or more reliabie than
Chirpcomm. Automatically send and receive
40-character messages without the burden of
frequency selection or link establishment
tasks. Simply enter the message to be sent,
and the rest is automatic.
The 4280 is available with a variety of
optional accessories for the best fit to any
application. Accessories include automatic
tracking antenna tuners, a 100-watt RFPA,
and an AC line power supply. |
