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QST
August 2023 43
Table 2
Icom IC-T10, serial number 32001613, FCC ID# AFJ432800
Main Firmware – VAB-99-1311, Display – VA1-14, SDR – VA1-06
Manufacturer’s Specifi cations
Measured in the ARRL Lab
Operating modes: FM/FM-N, FM broadcast
As specifi ed.
band (WFM).
Power requirements: 7.2 V dc with
As specifi ed.
supplied Icom battery pack, 10 – 16 V dc
with AD-149H external supply.
Current drain (at 7.2 V dc): Transmit
Measured with fully charged battery at
(at 5 W): <2.5 A.
8.3 V dc; 146 and 440 MHz: high,
1.8 A; med, 1.3 A; low, 0.6 A; current
drain from battery not measured
.
Receive (max audio output, 8 Ω load):
Measured with fully charged battery;
FM/FM-N, <600 mA.
146 MHz and 440 MHz; no signal,
lights on, 0.09 A; no signal, lights off,
0.06 A.
Receiver
Frequency coverage
*
A band: 136 – 174 MHz;
As specifi ed.
B band: 400 – 479 MHz;
As specifi ed.
FM broadcast band: 88-108 MHz.
As specifi ed.
Sensitivity: band FM/FM-N, 12 dB SINAD:
100 MHz: FM, –107 dBm (0.99 μV),
<0.18 μV / <–15 dB μV.
(–0.1 dBμV); 146 MHz: FM, –124 dBm
(0.14 μV), (–17 dBμV); 146 MHz: FM-N,
–126 dBm (0.11 μV), (–19.2 dBμV);
162.4 MHz: FM, –124 dBm (0. 14 μV),
(–17 dBμV); 440 MHz: FM, –125 dBm
(0.13 μV), (–18 dBμV); 440 MHz: FM-N,
–127 dBm (0. 10 μV), (–20 dBμV).
Adjacent-channel rejection: FM: >55 dB;
FM, 20 kHz offset:
†
146 MHz, 75 dB;
FM-N: >50 dB.
440 MHz, 74 dB; FM-N, 15 kHz offset:
146 MHz, 75 dB, 440 MHz, 75 dB.
FM two-tone, third-order IMD dynamic
20 kHz offset: 146 MHz: FM, 64 dB;
range: Not specifi ed.
FM-N, 71 dB; 440 MHz: FM, 62 dB;
FM-N, 71 dB; 10-MHz offset: 146 MHz:
FM, 66 dB; FM-N, 66 dB; 440 MHz:
FM, 67 dB; FM-N, 71 dB.
FM two-tone, second-order IMD dynamic
FM: 146 MHz: 55.2/90.82 MHz test
range: Not specifi ed.
tones, 72 dB; 446 MHz: 146/300MHz
test tones, 95 dB.
Squelch sensitivity: <–15 dBμV.
A and B band: 146 MHz, 0.25 μV (min),
(–12 dBμV); 0.64 μV (max), (–4 dBμV);
440 MHz, 0.28 μV (min), (–11 dBμV),
0.70 μV (max), (–3 dBμV).
S-meter sensitivity: Not specifi ed.
A band, 10-bar indication: 146 MHz, 1 μV;
440 MHz, 1 μV.
Audio output into 8 Ω:
internal speaker: 1.5 W at 10% THD;
Not measured;
external speaker: 0.45 W at 10% THD
0.49 W at 10% THD; 0.40 W at 1% THD.
Transmitter
Power output at 7.2 V dc: high, 5 W;
Battery fully charged at 8.3 V dc:
††
146 MHz:
mid, 2.5 W; low, 0.5 W.
high, 4.3 W; med, 2.15 W; low, 0.42 W;
440 MHz: high, 4.2 W; med, 2.0 W; low,
0.43 W.
Spurious-signal and harmonic suppression: Meets FCC requirements
.
<–60 dBc (high/mid);
146 MHz: < –66 dBc;
<–13 dBm (low)
440 MHz: –70 dBc.
Transmit-receive turnaround time (PTT
Squelch on, S-9 signal: 144 MHz: 110 ms;
(release to 50% of full audio output):
440 MHz: 112 ms.
Not specifi ed.
Receive-transmit turnaround time (TX delay): 146 MHz: 40 ms; 440 MHz: 40 ms.
(TX delay): Not specifi ed.
Size (height, width, depth): 4.4 × 2.1 × 1.2 inches (excluding protrusions).
Weight: 9.8 ounces.
Antenna length: 7 inches.
*
A and B band frequency coverage and specifi cations guaranteed only between
144 – 148 MHz and 430 – 450 MHz.
†
Measurements phase-noise limited at values shown.
††
Power output did not vary signifi cantly with external voltage from 10 to 16 V dc, or with
use of a slightly discharged internal battery.
KEY:
* Internal speaker not measured.
Bars off the graph indicate values over scale.
QS2308-PR166
Snd
800
100
Audio Output (mW)
490*
ChRej
50
90
Adjacent Channel Rejection (dB)
70 cm
74
2 m
75
I
3
RX
40
70
Receiver Third-Order Dynamic Range (dB)
(20 kHz offset)
70 cm
62
2 m
64
I
3
RX
60
90
Receiver Third-Order Dynamic Range (dB)
(10 MHz offset)
70 cm
67
2 m
66
SINAD
0.25
0.1
Receiver Sensitivity (12 dB SINAD,
μ
V)
70 cm
0.13
2 m
0.14
Icom IC-T10
Key Measurements Summary
Programming
Memory Channels
Programming memory channels is
straightforward. The radio has room
for 210 memory channels — 200
six-character alphanumeric memo-
ries, two call channels, three pairs of
scan edge memories, and two home
channels. To program a memory
channel, go in VFO mode and select
the frequency, the tone function if
needed, and the offset if not auto-
matically set. Then, push and hold
down the
S.MW
button until you hear
two short beeps sound, and then
MR
and the channel number will blink on
the screen. Rotate the dial to scroll to
the desired memory channel number,
and then push and hold down the
S.MW
key until two more short beeps
sound and the memory is stored.
Reprinted with permission; copyright ARRL.