Description
Beautiful Icom IC-7851 Flagship HF/6m transceiver. This is a one owner since new radio and never abused. No smoking and no pets. Transceiver was tested and operates as it should. Excellent receiver! (dual receivers actually).
Comes with factory supplied accessory pack, rack mount handles, front feet extenders, manual and original box as shipped from Icom.
From Icom::
HF/50MHz Transceiver – The Pinnacle of HF Perfection
Contesters and DXers are always looking for that competitive edge to magically pull out the weak signal that is either the rare country or multiplier they need to climb up the list. Larger antennas, higher gain pre-amps, and other devices in line are great. However, what happens inside the radio with all those signals coming down your feedline can defeat all your efforts.
With the design of the IC-7851, Icom’s engineers focused on a new Local Oscillator (LO) that drastically reduces the phase noise. As a result of this design, the purity of the LO achieves a Reciprocal Mixing Dynamic Range (RMDR) of 110dB. In addition to the incredibly clean LO allowing you to hear the weak signals, the new spectrum scope design enables you to see the weak ones! Faster processors, higher input gain, higher display resolution, and a cleaner signal from the receiver’s LO will give you a new window into the RF world. Adding this performance and functionality for both receivers gives you a dual-scope portal.
| U.S.A. Version | Europe Version | ||
|---|---|---|---|
| Frequency coverage*1 | Receiver | 0.030–60.000MHz*2 | 0.030–60.000MHz*2 |
| Transmit | 1.800–1.999MHz 3.500–3.999MHz 5.255–5.405MHz*2 7.000–7.300MHz 10.100–10.150MHz 14.000–14.350MHz 18.068–18.168MHz 21.000–21.450MHz 24.890–24.990MHz 28.000–29.700MHz 50.000–54.000MHz |
0.1357–0.1378MHz 1.810–1.999MHz 3.500–3.800MHz 7.000–7.200MHz 10.100–10.150MHz 14.000–14.350MHz 18.068–18.168MHz 21.000–21.450MHz 24.890–24.990MHz 28.000–29.700MHz 50.000–52.000MHz |
|
| Mode | USB, LSB, CW, RTTY, PSK31/63, AM, FM | ||
| No. of memory channels | 101 (99 regular, 2 scan edges) | ||
| Antenna connector | SO-239×4 and BNC×2 (50Ω unbalanced (Tuner off)) | ||
| Operating temp. range | 0°C to +50°C; +32°F to +122°F | ||
| Frequency stability | Less than ±0.05ppm (0°C to +50°C @ 54MHz, after warm up) | ||
| Frequency resolution | 1Hz (minimum) | ||
| Power supply requirement | 85–265V AC | ||
| Current drain | TX: 800VA (Max. power) RX: 130VA/120VA typ. (Max. audio/standby) |
||
| Dimensions (W×H×D, projections not included) |
425×149×435 mm; 16.73×5.87×17.13 in | ||
| Weight (approximate) | 23.5 kg; 51.8 lb | ||
*1 Varies according to version.
*2 Some frequency bands are not guaranteed.
Transmitter
| Output power | SSB/CW/FM/RTTY/PSK: 5–200W AM: 5–50W Transverter connector (CW): More than –20dBm |
|---|---|
| Modulation system | SSB : Digital P.S.N. modulation AM : Digital low power modulation FM : Digital phase modulation |
| Spurious emissions | HF bands: More than 60dB, 50MHz band: More than 70dB |
| Carrier suppression | More than 63dB |
| Unwanted sideband suppression |
More than 70dB |
| ⊿TX variable range Microphone impedance |
±9.999kHz |
| Microphone impedance | 600Ω (8-pin connector) |
Receiver
| Receive system | Double conversion super-heterodyne system |
|---|---|
| Intermediate frequencies | Main receiver: 64.455MHz/36kHz (1st/2nd) Sub receiver: 64.555MHz/36kHz (1st/2nd) |
| Sensitivity (typical) (HF: Pre-amp 1 ON, 50MHz: Pre-amp 2 ON) |
SSB, CW, RTTY, PSK (BW=2.4kHz, at 10dB S/N) 0.1MHz～1.7999MHz：0.5μV 1.8MHz～29.990MHz：0.16μV 50MHz～54MHz ：0.13μV AM (BW=6kHz, at 10dB S/N) FM (BW=15kHz, at 12dB SINAD) |
| Sensitivity for RED (Less than) Preamp ON SSB, AM, FM: at 12 dB SINAD (EURO Version) |
SSB (2.4 kHz): 1.8–2.999 MHz 10 dBμV emf 3.0–29.999 MHz 0 dBμV emf 50 MHz band –6 dBμV emf AM (4 kHz, 60% modulation): FM (7 kHz, 60% modulation): |
| Squelch sensitivity | SSB, CW, RTTY, PSK: Less than 5.6μV (Pre-amp: OFF) FM: Less than 1μV (Pre-amp: OFF) |
| Selectivity | SSB (BW=2.4kHz, sharp)：2.4kHz/-3dB 3.6kHz/-60dB CW/RTTY/PSK (BW=500Hz, sharp)：500Hz/-3dB 700Hz/-60dB AM(BW=6kHz)：6.0kHz/-3dB 15kHz/-60dB FM(BW=15kHz)：12kHz/-6dB 20kHz/-60dB |
| Spurious and image rejection ratio | More than 70dB |
| Audio output power | More than 2.6W (10% distortion, 8Ω load) |
| RIT variable range | ±9.999kHz |
Antenna Tuner
| Matching impedance range |
HF bands: 16.7Ω to 150Ω unbalanced (VSWR better than 3:1) 50MHz: 20Ω to 125Ω unbalanced (VSWR better than 2.5:1) |
|---|---|
| Minimum operating power |
HF bands: 8W, 50MHz band: 15W |
| Tuning accuracy | VSWR 1.5:1 or less |
| Insertion loss | Less than 1.0 dB (after tuning) |
Supplied Accessories
- Rack mount handles
- SD card
- AC power cable
- Spare fuses
- Plugs
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Please note any test instruments and meters used to show functionality in photos are not included.
What you see in the photos that forms part of the accessories of the specific unit is included, nothing more.
All these pieces comes from working ham shacks as well as storage units and sold as is.
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