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Serving the Aviation Industry since 1973
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RPU 499A Plus Portable Radio
99 channels, 450-470 MHz UHF
(DAI Part# RPU499APLUS)
All RELM portable radios provide robust features, advanced functions, and practical advantages for users in the field:

Easy to hear, easy to use - small and lightweight, tough and rugged, meets rigid MIL-STD 810 specs
CDCSS/CTCSS functions tune out interfering calls and let you hear your group only
Built-in 2-tone decoder and encoder so you can choose either individual or group call signaling and operation
Multiple scan functions include priority channel and talkback scanning and deleting nuisance channels
Flex-Mode per-channel narrowband/wideband channel spacing
Flex-Mode per-channel narrowband/wideband channel spacing
Busy channel lockout to avoid interring with other users
Includes Rapid Rate Desktop Charger



SPECIFICATIONS
Frequency Range 450-470 MHz
Number of Channels 99
RF Power Output 4 Watts
Channel Spacing 25/12.5 kHz
Priority Scan Included
Home Scan Included
TalkBack Scan Included
Tone Code Guard (CTCSS) Included
Digital Code Guard (CDCSS) Included
Two-Tone Decode Included
Time Out Timer Included
Busy Channel Lockout Included
Windows Programmable Included
Battery Conditioning Charger Included
Operating Temperature -30 to 60°C
Operating Bandwidth - VHF/UHF 26MHz/20MHz
Channel Increments 2.5/6.25 kHz
Channel Spacing 25kHz/12.5kHz
Frequency Stability ±2.5 PPM
Standby Current 20 mA
Battery Life >10 hours
Dimensions - H x W x D 5.8" x 2.5" x 1.3"
Weight w/Battery 14 oz
Display LCD
Receiver Specifications Wide Narrow
Sensitivity: 12 dB SINAD 0.25 uV 0.28 uV
Selectivity <=70 dB <=60 dB
IMD 65 dB 65 dB
Spurious Response 60 dB 60 dB
Image Response 60 dB 60 dB
Squelch Opening 8 dB SINAD 8 dB SINAD
Audio Output @ 5% dist. 500 mW 500 mW
Transmitter Specifications Wide Narrow
Hum & Noise -35 dB -40 dB
Audio Distortion <5% <5%
Spurious & Harmonics -60 dB -60 dB
Modulation 16K0F3E 11k0F3E