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ID-31A

UHF Transceiver

specifications

Specifications

General
Frequency coverage and Mode:(Unit: MHz)
Version Transmit Receiver

EUR

430–440 430–440
UK 430–440 430–479*1
ITR 430–434, 435–438 430–434, 435–438
USA 420–450*2 400–479*2

EXP

400–479*1 400–479*1
EXP-01 430–440 400–479*1
AUS 420–450*1 400–479*1
KOR 430–440 430–440

*1 Guaranteed range, 430–440MHz.

*2 Guaranteed range, 440–450MHz.

 

Type of emission

F2D, F3E, F7W

Mode

DV, FM, FM-N

No. of memory channels  1252 channels (including 500 regular channels, 700 D-STAR repeater memories, 50 program scan edges and 2 call).
Frequency resolution 5, 6.25, 10, 12.5, 15, 20, 25, 30, 50, 100, 125 and 200kHz
Operating temp. range

–20°C to +60°C;

–4°F to +140°F;

Frequency stability

±2.5ppm (–20°C to +60°C on the basis of 25°C)

Power supply requirement:
External DC Power
Alkaline cells

7.4V CD (with BP-271)
10–16V DC
5.5V (with BP-273)
Current drain (at 7.4V DC):
Tx High
Rx Internal SP (16 Ω)

Rx External (8 Ω)


Less than 2.5A
Less than 450mA (DV)
Less than 1350mA (FM, FM-N)
Less than 300mA (DV)
Less than 200mA (FM, FM-N)
Antenna impedance 50Ω (SMA)
Dimensions(W × H × D)
(projections not included)
58 × 95 × 25.4 mm
2.258 x 3.74 x 1 in
Weight (approx.) 140g; 7.94oz (with BP-271 & antenna)
Transmitter
Modulation system
DV
FM, FM-N

GMSK reactance modulation
FM reactance modulation
Output Power
(at 7.4V DC)
5W, 2.5W, 0.5W, 0.1W
(High, Mid, Low, S-low)
Spurious emissions Less than –60dBc (High, Mid)
Less than –13dBm (Low, S-low)
Max. freq. deviation ±5.0/2.5 kHz (FM/FM-N)
Ext. Mic impedance 2.2kΩ
Receiver
Intermediate frequency  

46.35MHz, 450kHz (1st, 2nd)

Sensitivity

DV (at 1% BER, 4.8ibps)

FM (at 12dB SINAD, 35kHz DEV)

FM-N (at 12dB SINAD, 1.75kHz DEV)


Less than 0.28μ

Less than 0.18μ

Less than 0.18μ

Selectivity

DV

FM

FM-N

 

More than 50dB

More than 55dB

More than 50dB

Spurious rejection

 More than 60dB

Audio Input Power
(at 7.4V DC, 10% distorion)

Internal SP (16Ω load)

External SP (8Ω load)



More than 400mW

More than 200mW

AF output impedance

Internal SP

External SP


16Ω load

8Ω load

All stated specifications are subject to change without notice or obligation.

 

 

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