----- Original Message -----
From: ""Heinz Bordé"" <[email protected]>
To: <[email protected]>
Sent: Sunday, July 13, 2003 4:07 PM
Subject: Re: LF: ICOM 746 cure
I tryed the proposal of Mal. It works. The carrier could be moved to abt.
See INSTRUCTION MANUAL IC 746, chapter 11-4 (ADJUSTMENTS-ADJUSTING
the LCD), bringing down LCD BACKLIGHT to 10%
By the way: the 746 is not that bad at 137 kHz: I could copy a G4 stn
calling cq without preamp. Ant is a T - one, 8 m vertical and 20 m tpo load.
I have a 746 and it compares with the TS 850 as regards sensitivity and with
a CW filter fitted it is very good on 137 k hz. You can also use the APF to
After the above adjustments to remove the inband carrier qrm on 137 khz this
makes a great RX for LF.
Glad you had success.
73 de Mal/G3KEV - the STATION FOR INFORMATION AND EDUCATION
73 to all, Heinz, DM2BHG
"hamilton mal" <[email protected]> schrieb:
Heinz/DM2BHG recently enquired about a cure for the inband carrier around
136 khz on his ICOM 746
To eliminate this carrier adjust the DISPLAY CONTRAST CTL to around 10%
and BACKLIGHT CTL the same 10%.
This will move the offending carrier up HF to about 143 khz. This
operation takes a couple of minutes
The IC 746 is a good sensitive LF RX on the 137 khz band with the
appropriate CW FILTER installed.
73 and gl