[ICOM] IC 775 clicks

[Maciej Wieczorek]

Hi,

Thank's for all info. I posted the subject also on Topband list and must 
admit some people say they have never experienced clicks from their 775, 
others say it's a common problem with this equipment, but no mod 
available...

I have my IC 775 (DXII) since 2006, of course I know about the proper 
settings of DRIVE control vs. ALC meter, etc. As I mentioned before - there 
are clicks regardless of PA, even on 40-50watts pwr out, directely from TRX. 
Also, no difference on full BK / semi BK.

I'm aware there might be a problem with this particular unit and the radio 
needs a repair, no mod. We will check the D37 diode that OK1CF suggested and 
also will look for other possible reason in RF Unit. I we find sth 
interesting I'will post it here.

73's
Mac SP2XF

----- Original Message ----- 
From: "Vladimir Sidarau" <vs.lists at gmail.com>
To: "ICOM Reflector" <icom at mailman.qth.net>
Sent: Tuesday, January 24, 2012 12:13 AM
Subject: Re: [ICOM] IC 775 clicks


> Hi Dwayne,
>
> You are perfectly right about the Drive control. It should be the first
> thing to check. Too high Drive may cause distortions in SSB, as well as
> produce artefacts on CW.
>
> IC-775 may produce a momentary but serious power spike at a start of
> transmission. Therefore it may cause problems to tube amps. However, the
> "native" solid state Icom's IC-PW1 handles this spike easily. I run such a
> combo since end 1990-ies with no problem. Not sure about other solid state
> PAs due to lack of experience, but it should not be a problem for them, as
> well.
>
> 73,
> Vladimir VE3IAE
>
> ---
>
>
>
>
>
>
> ----- Original Message ----- 
> From: "Dwayne" <863 at telus.net>
> To: "ICOM Reflector" <icom at mailman.qth.net>
> Sent: Monday, January 23, 2012 5:52 PM
> Subject: Re: [ICOM] IC 775 clicks
>
>
>> Hi
>>   Name is Dwayne (ve6qx).. I think you have to set drive controll
>> properly... Turn Drive fully clockwise.. Set pwr control for  what ever
>> power out you want, then turn the drive down to that point on pwr out..
>> You
>> can see the drive start to decrease the pwr out when you get to that
>> level..
>> Drive and power go hand in hand...
>>   I was told this radio can't be used to drive amp. becuz of overshoot 
>> and
>> that was true if I didn't have pwr and drive control set properly..  Hope
>> this helps
>>
>>    Pse. let me know how this works for you..
>>
>>  Dwayne   Ve6qx
>>
>>
>>
>>
>>
>> ----- Original Message ----- 
>> From: "Maciej Wieczorek" <sp2xf at wp.pl>
>> To: "ICOM Reflector" <icom at mailman.qth.net>
>> Sent: Monday, January 23, 2012 2:33 PM
>> Subject: [ICOM] IC 775 clicks
>>
>>
>>> GM/GE,
>>>
>>> Has anyone ever seen any mod for IC 775 DSP, for getting rid of CW
>>> clicks?
>>> I
>>> mean, kind of solution that they have for FT 1000 mark V..?
>>>
>>> BTW, maybe I have a problem with my radio, with the signal S 9+30db on
>>> 160m
>>> (no amplifier) a friend located 30kms away was hearing my clicks for
>>> almost
>>> 1,5khz up/dwn, with 400hz filter....
>>>
>>> I'm preparing for CQWW 160m contest, so yesterday we made several tests
>>> and
>>> after puting the same power from IC 765 the difference is huge, almost 
>>> no
>>> clicks and nothing detected if we go  +/-  0,5 khz  from the TX
>>> frequency...
>>>
>>> 73's
>>> Mac SP2XF
>>>
>>> ----
>>> Your Moderator: Dick Flanagan K7VC: icom-owner at mailman.qth.net
>>> Icom Users Net: Sundays, 1700Z, 14.316 MHz
>>> Icom FAQ: http://www.qsl.net/icom/
>>> To support QSL/QTH.net: http://www.qsl.net/donate.html
>>>
>>
>> ----
>> Your Moderator: Dick Flanagan K7VC: icom-owner at mailman.qth.net
>> Icom Users Net: Sundays, 1700Z, 14.316 MHz
>> Icom FAQ: http://www.qsl.net/icom/
>> To support QSL/QTH.net: http://www.qsl.net/donate.html
>
> ----
> Your Moderator: Dick Flanagan K7VC: icom-owner at mailman.qth.net
> Icom Users Net: Sundays, 1700Z, 14.316 MHz
> Icom FAQ: http://www.qsl.net/icom/
> To support QSL/QTH.net: http://www.qsl.net/donate.html
>