CTX‐10

Specifications    Prices

HF transceiver for desktop and mobile QRP operations with a minimum number of user interface controls. Dual conversion, low–IF, receiver with 32-bit DSP. Power output 1/5/10 Watts, LDMOS push-pull, automatic antenna tuner, replaceable internal lithium‐ion batteries. Year of introduction 2018.

Reference market : amateur-radio

CTX‐10 specifications

General
Frequency coverage
Receive0.1500 ~ 30.0000 MHz [5]
Transmit3.5 / 5.3 / 7 / 10 / 14 / 18 / 21 / 24 / 28 MHz band
Mode
CW / LSB / USB / AM [1]
Tuning step
10 / 100 Hz / 1 / 5 [2] / 10 / 100 KHz / 1 MHz
Receiver
Sensitivity
SSB-110 dBm (1.8~30 MHz, 10dB S/N)
MDS (Minimum Detectable Signal) [3]
-115 dBm (0.15~1.8 MHz)
-135 dBm (1.8~30 MHz)
Selectivity
CW0.5 / 1/ 1.8 / 2.2 / 2.6 kHz
SSB1.8 / 2.2 / 2.6 kHz
AM5 / 7.5 / 15 kHz
ADC (Analog to Digital Conversion)
Resolution14 Bit
RF preamplifier
~8 dB
AGC (Automatic Gain Control)
OFF, Slow, Medium, Fast
Frequency stability
± 0.2ppm [4]
CW features
Morse code reader
Transmitter
Output power
CW / SSB1 / 5 / 10W
Spurious emission
Harmonics> -50dBc
Carrier suppression (SSB)
> 55dB
Unwanted sideband suppression (SSB)
> 55dB
CW features
5~50 WPM keyer
Features
Memory
8 channels in 8 groups
Display
64 x 128 pixel, 3.8cm OLED
10 Hz frequency resolution
Antenna
BNC 50Ω
Power supply
12~18VDC typ
5~20VDC min/max
Power consumption
2.5W RX typ
20W RX max
Audio power
800mW on 8Ω
40mW on 16Ω (headphone)
Audio output
Jack 3.5mm (headphone)
Jack 3.5mm (external speaker)
Connections
mini-USB 2.0 (I/Q data, remote control)
Jack 3.5mm (CW key)
8-pin RJ‐45 (microphone)
6-pin mini‐DIN (accessory)
Mechanical and environmental data
Operating temperature
from 0°C to +45°C
Dimensions
142 (W) x 39 (H) x 152 (D) mm, not including knobs and feets
Weight
0.99kg

  1. Only for receiver.
  2. AM mode.
  3. With 500Hz bandwidth.
  4. TCXO built-in.
  5. Performance is not guaranteed on 150-540 KHz range.
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CTX‐10 description :

The CommRadio CTX‐10 was designed to be rugged and user‐friendly, with a minimum number of user interface interactions to produce the desired system functional change. Built-in replaceable 3 x 18650 Lithium‐Ion batteries (4.2V @ 2.6Ah) provide power for a day's casual operation. The ability to provide operational power and simultaneously recharge the batteries from any min-5VDC to max-20VDC source provides low‐cost portable expansion capability and unlimited field operation. Features as wide‐range Automatic Antenna Tuner (ATU), CW keyer and CW reader provide everything amateur-radio operator need for full functionality in one lightweight, die‐cast aluminum package with no need for supplementary cooling solutions during high duty cycle operations.


Introduction video to the CommRadio CTX‐10 transceiver:
Optical tuning encoder, Mode changes, Save to memory, TX-RX turn-around time.

CTX‐10 features in short :

  • 9 ham-bands.
    80 / 60 / 40 / 30 / 20 / 17 / 15 / 12 / 10 meters, with 5 switched LPF (low pass filters).

  • Audio input/output.
    To interface with sound-card, for data-modes.

  • Microphone input.
    Built in compression and noise gate. Microphone not supplied.

  • ATU.
    Relay controlled with 6-switched series inductors and 8-switched shunt capacitors, with memory.

  • 7 receiver pre-selector filters.
    150-540 / 540-1710 kHz / 1.7-4 / 4-7.5 / 7.5-14.5 / 14.5-21 / 21-30 MHz.

  • ESD protection.
    On antenna, DC power, USB ports.

CTX‐10 battery endurance test :


25WPM CW internal-battery endurance of the CommRadio CTX‐10 transceiver.

CTX‐10 functional block diagram :


CommRadio CTX10 architecture

Block / Description
1T/R switch, TX low-pass filter and ATU
21/2 RF power amplifier
31/2 RF power amplifier
4RF driver amplifier
5TX active mixer
6DDS synthesizer
7TX direct quadrature modulator
8PLL clock generator
9TX audio CODEC
10TX microphone preamplifier and compressor
11RX RF tuner
12RX dual ADC
13RX DSP processor
14Microcontroller
15USB in/out port
16RX audio CODEC and speaker driver
17RX band-pass filter

CTX‐10 price

We have collected for your convenience the CommRadio CTX10 sale price (UK Pounds) and its trend over time. Useful to guarantee a cheaper purchase of this radio and to put it for sale in the second-hand market. Of course offers, accessories, warranty terms and conditions can lead to different figures.

Price Date Condition
GBP 581.50
(699USD)
2023-mar Refurbished

Refurbed at factory with new encoder and ROM update

GBP 729.00
(999USD)
2021-may Brand-new

CTX‐10 review

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