how to quieten the background noise ICOM IC-706 MK11G

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WARLOCK
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how to quieten the background noise ICOM IC-706 MK11G

Post by WARLOCK » 18 Mar 2018, 18:57

Is there any way or the best way to cut down on the background noise on my Icom 706 MK11G , I think there is a way ??? i am not very good with menv radios, George

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Buick Mackane
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Re: how to quieten the background noise ICOM IC-706 MK11G

Post by Buick Mackane » 18 Mar 2018, 19:05

Iv'e never owned a 706. But i presume like most modern HF radios it will have a switchable preamp, If its set to on turn it off, Preamps aren't needed on HF
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Re: how to quieten the background noise ICOM IC-706 MK11G

Post by G8YMW » 19 Mar 2018, 02:43

As Buick Makane has said, on HF, you can switch the pre-amp off and on 40 and 80 metres you can go further.
The pre-amp button cycles through "pre-amp on", "pre-amp off" and "attenuator on"

Another one (not cheap but very effective) is fit the FL223 narrow ssb filter.
If you also dabble on CW or RTTY, there is a second socket so you could fit a cw filter as well
If you listen on the cw end of an active band without a cw filter, you will find 3 or 4 signals in the passband

I'm not keen on the dsp noise reduction on the 706 as it puts "watery artefacts" on the signal
Other than that, I think it's a damn good radio

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Re: how to quieten the background noise ICOM IC-706 MK11G

Post by 108EH002 » 01 Apr 2018, 18:02

What antennas are you using,and how are they earthed Warlock ?
You can talk worldwide on CB radio aswell,
rsgb are too far up their own @rses to admit it,
many freebanders just happen to know otherwise.

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WARLOCK
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Re: how to quieten the background noise ICOM IC-706 MK11G

Post by WARLOCK » 01 Apr 2018, 18:34

At the present time i am using a sirio gainmaster which i do not have earthed , Iam going to put a doublet antenna up on a fibreglass 12mt spiderpole as soon as the weather gets better will i have to earth that antenna if so how ?? George

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Re: how to quieten the background noise ICOM IC-706 MK11G

Post by RadioPixie » 01 Apr 2018, 18:35

There's also the DSP "NR" function on the 706 that will reduce the background noise somewhat.
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