(Secondary and backup radio)
This Icom 706MKIIG was my original main radio before the 746PRO came to live with me. Now it sits on the side as a back-up radio, and second radio for monitoring 2 bands together.
As I said, this was my baby radio, and served me well for 5 years. Connected to the Icom AT-180 auto tuner, I made hundreds of contacts local and DX. I used to have a W2IHY 8-Band EQ that I ran my Heil PR-30 through to feed audio to the 706MKIIG. It never failed me once, and I always got great reports from every contact. Most of them were surprised to learn it was a little mobile.
The following info is from the Icom website.
The IC-706MKIIG carries on the '706' series tradition of base station performance and features in a mobile rig-sized package. Building on this legacy, frequency coverage is expanded to the 70 cm band and output power is increased for the 2 m band. A long list of enhancements, both to usability and performance, as well as added features and functions have produced the latest in the evolution of the '706' series.
Operating frequency range has been expanded to the 70 cm band. Of course, all mode operation (SSB, CW, RTTY, AM and FM) is possible and a full 100W of output power is available for HF and 6m operation; 50W for 2m and 20W for 70cm operation.
The two 70 watt "RD70HVF1" MOS-FET power amplifier transistors are employed at the PA unit for 100 watts of power on HF, and 6m. A third "RD70HVF1" is used for 50 watts on 2m and 20 watts on 70cm bands. And, a one piece aluminum, diecast chassis with a large cooling fan is employed. This combination provides stable, high quality output with low IMD and low spurious emissions even during full 100% duty cycle and extended operation.
Backlighting of keys and switches is a great help during nighttime operation.the intensity is even adjustable!
Tone squelch operation is available in FM mode for basic signalling and quiet standby. Tone frequencies can be set independently for tone squelch (Tx/Rx) and repeater tones, and a range of 50 frequencies is available. A tone scan function is available to search for a repeater's access tone quickly and easily.
DSP capabilities are included. These include noise reduction and auto notch functions. Superior receive quality in your shack, vehicle or during DX'peditions.
The IC-706MKIIG is very compact at 69/16(W)×29/32(H)×77/8(D) and weighs a mere 5.5 lb, making it ideal for DX'peditions, etc. A detachable front panel allows easy installation in your shack or in a wide variety of mobile applications. An optional separation cable is required.
Automatic repeater function
An automatic repeater function (Standard for USA version only) is available and repeater frequencies can be programmed via a special operation. This eliminates the need for repeater settings for 6m, 2m or 70cm repeater operation.
±0.5 ppm of high frequency stability is provided when an optional CR-282 HIGH STABILITY CRYSTAL UNIT is installed.
The individual band change key, a sub dial and quick band change capability provide simple operation. The individual band change key allows quick and easy QSY, the sub dial enhances mobile and memory operation, and the quick band change capability selects pre-set frequency bands with the last-used frequency and mode. Also, each band can store preamplifier/attenuator and tuner on/off settings.
This function sweeps ±14 steps from the displayed frequency and plots received signal strength on the function display. This function is useful not only for checking HF band conditions, but also seeking vacant frequencies during VHF or UHF FM operation.
For FM operation on the 10m or 2m bands (where narrow FM of 5KHz is required), the IC-706MKIIG has narrow FM capability that allows you to take advantage of this operating mode. The "Normal" FM position is 9.75KHz wide.
99 channels can memorize both transmit and receive frequencies separately; 6 channels are for programmed scan edges; and 2 channels are for call memory for the 2m and 70cm bands. And, up to 9-character alphanumeric names can be programmed into each memory channel.
|Mode||USB, LSB, CW, RTTY (FSK), AM, FM, and (WFM in Rx only)|
|No. of Memory Channels||107 (99 regular, 6 scan edges, 2 call channels)|
|Antenna Connector||SO-239x2 (for HF/50 MHz and 144/430 MHz)/50Ω|
|Frequency stability||Less than ± 7ppm from 1 min. to 60 min. after power ON. After that rate of stability less than ± 1 ppm/hr. at +25 °C (+77°F). Temperature fluctuations 0°C to +50°C (+32°F to +122°F) less than ±5 ppm.|
|Temperature Range||-10°C to 60°C;|
14°F to 140°F
(projections not included)
|167(W) X 58(H) X 200(D) mm;|
69/16(W) X 29/32(H) X 77/8(D) in
|Weight (approx.)||2.45 kg (5 lb 6 oz)|
|CI-V connector||2 conductor, 3.5 (d) mm (1/8")|
|ACC Connector||13 pin|
Low level modulation
Variable reactance modulation
Less than -60 dB
-50 to -60 dB
|Carrier Suppression||More than 40 dB|
|Unwanted Sideband||More than 50 dB|
|MIC Connector||8 pin modular jack (600Ω)|
|KEY connector||3-conductor 6.35 (d) mm (1⁄4″)|
|RTTY connector||3-conductor 3.5 (d) mm (1⁄8″)|
|Intermediate frequencies||(Unit: MHZ) |
|Receive sensitivity||(preamp on; except 4-4.5 and 8-9 MHz) |
Squelch Sensitivity (threshold)
SSB - Less than 5.6 µV
FM selectivity (Normal) - Less than 0.3 µV
SSB, CW, RTTY
More than 2.4 kHz/- 6 dB
Less than 4.8 kHz/ -60 dB
More than 8.0 kHz/-6 dB
Less than 30 kHz/-36 dB
More than 12 kHz/-6 dB
Less than 30 kHz/-60 dB
Spurious and Image Rejection
|Audio output power||More than 2.0 W (at 13.8 V DC)|
|RIT Variable Range||±9.99 kHz|
|PHONES connector||3-conductor, 3.5 (d) mm (1⁄8″)/8Ω|
|External SP Connector||2-conductor, 3.5 (d) mm (1⁄8″)/8Ω|
The IC-706MKIIG meets MIL-STD requirements and strict environmental standards for shock (MIL 810C, D, E), vibration (MIL 810C, D, E), and bandwidth requirements (MIL 810B).