![background image](http://html.mh-extra.com/html/icom/ic-746/ic-746_faq_612277101.webp)
IC-746 FAQ
Page:53 Enter numbers via keypad, not tuning dial
While the diagram specifically highlights the numeric keypad on the radio; the "instructions"
fail to mention that numbers and the decimal point are entered via the keypad instead of the
tuning knob.
Page:56 Incorrect Page References
In the 1st paragraph, the reference "for programming scan edges" is p.56 but should be p.52.
Page:68 Unclear Voltage Specification
The box describing the ALC JACK lists an input voltage of "0-4 V". It should read "-4 to 0
Vdc".
Page:70 Overoptimistic SWR Specification
In the box labeled "ANTENNA SWR" the manual states (in part):
When the SWR is higher than approx. 2.0:1, the transceiver's power drops to protect the
final transistors.
Actually, power starts cutting back much earlier than that; somewhere between 1.7:1 and
1.3:1
Page:77 Unclear UT-102 Installation Instructions
The UT-102 Voice Synthesizer is installed in the "bottom" of the transceiver, not the "top".
Also, the "shield cover" is not involved.
Page:79 Incorrect SEND Relay Specifications
The "NOTE" for "CONNECTING A NON-ICOM AMPLIFIER", should read
NOTE:
The specifications for the SEND relay are 12 V DC at 20 ma (milli-
amps). If this level is exceeded, an external relay or switching transistor must be used.
The 746 SEND line is designed to interface to a solid-state amplifier trigger, like those used
in Icom's power amps. Many people have damaged their rigs by trying to switch amplifiers
with higher voltage/current requirements.
Page:84 Incorrect Bandwidth listing
Under Receiver Specifications, the USB/LSB/CW Selectivity is listed incorrectly as 2.1Khz.
The actual selectivity (bandwidth) is determined by the IF filter selections. By default, as
shipped, the selectivity (bandwidth) for those modes is 2.4 Khz.
Page 101 of 113
2003-02-08