Icom IC-7300 HF/50MHz TRANSCEIVER
New technology is changing the way receivers are being designed and the Radio SSB Icom IC-7300 is an industry first as an RF, Direct Sampling System is being used in an entry level HF radio. The ability to digitize RF before various receiver stages reduces the inherent noise that is generated in the different IF stages of a radio. We feel the performance of the ‘7300 will far exceed your expectations for a radio considered entry level.
Output power: |
100W (25W AM) | |
RX Frequencies: |
0.030-74.800 | |
Receiver type: |
Direct sampling |
RF direct sampling system
The IC-7300 employs an RF direct sampling system, where RF signals are directly convert to digital data. Then processed in the FPGA (Field-Programmable Gate Array), making it possible to simplify the circuit construction as well as reduce noise that can mask weak signals.
The new “IP+” improves the 3rd order intercept point (IP3) performance improving the ability to copy a weak signal that is adjacent to either a strong interfering signal. In this process, A/D converter is optimized to reduce or eliminate signal distortion.
RMDR and phase noise characteristics
The IC-7300’s RMDR is about 97dB* (typical value) improving the Phase Noise characteristics by about 15dB (at 1 kHz frequency separation). The superior Phase Noise characteristics reduce noise components for both receive and transmit signals.
* At 1 kHz frequency separation (received frequency: 14.2MHz, MODE: CW, IF BW: 500Hz)
15 discrete band-pass filters
The RF Direct Sampling is protected by an array of bandpass filters. The signal passes through one of the fifteen bandpass filters, where signals outside the passband are rejected. To reduce the insertion loss, the IC-7300 utilizes High Q factor coils.
Large color touch screen Icom IC-7300
The large 4.3” color TFT touch LCD offers intuitive operation of functions, settings, and various operational visual aids such as the band scope, waterfall function, and audio scope.
Like on the high-end rigs, the waterfall shows a change of signal strength over a period of time and allows you to find weak signals that may not be apparent on the spectrum scope.
Use the audio scope function to observe various AF TX/RX characteristics such as microphone compressor level, filter width, notch filter width and keying waveform in the CW mode. Image below shows the Audio scope with the waterfall function and the oscilloscope.
Touch screen display
Waterfall function
Audio scope function
Real-Time spectrum scope
You no longer have to choose whether to listen to the audio or have the spectrum scope sweep for signals as the IC-7300’s real-time spectrum scope offers the simultaneous operations found in some of the more expensive rigs! This means you can use either the spectrum scope or the waterfall to quickly move to an intended signal while listening to the receiver audio. The ‘7300’s touch screen introduces a “Magnify” function. So, when you first touch the scope screen around the intended signal, the touched part is magnified. A second touch of the scope screen changes the operating frequency and allows you to accurately tune.
Spectrum scope specifications
| Scope system | FFT (Fast Fourier Transform) |
| Sweep speed | Max. 30 frames/second (approx.), selectable from slow, mid or fast |
| Span width | 5kHz-1000kHz |
| Resolution | 1 pixel minimum (approximately) |
| Waveform display area (vertical axis) | 80dB |
| Reference level adjustment | –20dB to +20dB |
| Peak level hold function (Max. hold) | ON/OFF/last 10 seconds |
| Other functions | Averaging indication Touch screen operation VBW (Video Band Width) adjustment |
Additional Features:
- Built-in automatic antenna tuner
- 101 channels (99 regular, 2 scan edges)
- SD memory card slot for saving data
- Cooling fan system
- Multi-function meter
- CW functions: full break-in, CW reverse, CW auto tuning
- SSB, CW, RTTY, AM, FM modes
Specifications Icom IC-7300
General |
|
|---|---|
| Frequency coverage RX TX |
0.030–74.800** 1.800–1.999, 3.500–3.999, 5.255–5.405*, 7.000–7.300, 10.100–10.150, 14.000–14.350, 18.068–18.168, 21.000–21.450, 24.890–24.990, 28.000–29.700, 50.000–54.000* Some frequency bands are not guaranteed. ** Guaranteed range: 0.500–29.999, 50.000–54.000MHz. |
| Mode | SSB, CW, RTTY, AM, FM |
| Number of channels | 101 (99 regular, 2 scan edges) |
| Antenna connector | SO-239 (50Ω) |
| Power supply requirement | 13.8V DC ±15% |
| Power Consumption | Tx: 21A (at 100W output) Rx: 0.9A typical (Standby), 1.25A (Maximum audio) |
| Operating temperature range | –10˚C to +60˚C; 14˚F to 140˚F |
| Frequency stability | Less than ±0.5ppm (–10˚C to +60˚C; 14˚F to 140˚F) |
| Frequency resolution | 1Hz |
| Dimensions | 240 × 94 × 238mm; 9.45 × 3.7 × 9.37in
(projections not included) |
| Weight (approximately) | 4.2kg; 9.26 lb |
Transmitter |
|
|---|---|
| Output power (HF/50MHz) | SSB/CW/FM/RTTY: 2–100W, AM: 1–25W |
| Modulation system SSB AM FM |
Digital P.S.N. Digital Low power Digital Reactance |
| Spurious emission | Less than –50dB (HF bands), Less than –63dB (50MHz band) |
| Carrier suppression | More than 50dB |
| Unwanted sideband | More than 50dB |
| Microphone impedance | 600Ω |
Receiver |
|
|---|---|
| Receiver system | Direct Sampling Superheterodyne |
| Intermediate frequency | 36kHz |
| Sensitivity* SSB/CW (at 10dB S/N) 0.5–1.8MHz 1.8–29.995MHz 28.0–29.7MHz 50MHz band AM (at 10dB S/N) 0.5–1.8MHz 1.8–29.995MHz 28.0–29.7MHz 50MHz band FM (at 12dB SINAD) 0.5–1.8MHz 1.8–29.995MHz 28.0–29.7MHz 50MHz band |
– 0.16μV – 0.13μV12.6μV 2.0μV – 1.0μV- – 0.5μV 0.25μV * HF: Preamp 1 ON, 50MHz: Preamp 2 ON |
| Squelch sensitivity* (Threshold) SSB: Less than 5.6μV, FM: |
< 0.3μV * HF: Preamp 1 ON, 50MHz: Preamp 2 ON |
| Selectivity (sharp filter shape) SSB (BW: 2.4KHz)CW (BW: 500Hz)RTTY (BW: 500Hz)AM (BW: 6kHz)FM (BW: 15kHz) |
More than 2.4kHz / -6dB Less than 3.4kHz / -40dB More than 500Hz / -6dB Less than 700Hz / -40dB More than 500Hz / -6dB Less than 800Hz / -40dB More than 6.0kHz / -6dB Less than 10kHz / -40dB More than 12.0kHz / -6dB Less than 22kHz / -40dB |
| Spurious and image rejection ratio | HF: > 70dB 50MHz: > 70dB (Except for ADC Aliasing) |
| Audio output power | More than 2.5W (at 10% distortion with an 8Ω load, 1kHz) |
Tuner |
|
|---|---|
| Frequency range | 1.9–50MHz bands |
| Matching impedance range | 16.7Ω–150Ω unbalanced (VSWR better than 1: 3) |
| Tuning accuracy | VSWR 1: 1.5 or less |
| Tuning time | 2–3 seconds (Maximum 15 seconds) |
OPTIONS
Amplifier
- PW1 1KW linear amp
Antennas
- AH-2B Antenna element/base (7-54MHz)
- AH-710 Folded dipole (1.9-30MHz)
- AH-740 Automatic tuning antenna
(2.5-30MHz) - AH-5NV NVIS kit to use with
AH-740 (2.2-30MHz)
Antenna tuners
- AH-4
Cables
- OPC-420 Control cable for AH-4, (10m)
- OPC-599 Cable adapter converts, 13-pin to 7/8-pin connectors
- OPC-2321 Control cable for AH-740 (6m)
Converter
- CT-17 CI-V level
External speakers
- SP-23
- SP-33
- SP-34
- SP-35
- SP-38
Microphones
- HM-219 Hand mic
- SM-30 Desk mic
- SM-50 Desk mic
Mounting hardware
- MB-118 Mobile mounting bracket
- MB-123 Carrying handle
Power supply
- PS-126
Software
- RS-BA1 IP remote control software
- RC-28 USB remote encoder
