[ICOM] Turning up SSB power on 756PRO

[Adam Farson]

Hi Guillermo,

Even 120W is a bit high. To prolong the life pf the PA output devices and
keep IMD to an acceptable level, power output should not exceed 100W.

Cheers for now, 73,
Adam VA7OJ/AB4OJ
 

-----Original Message-----
From: icom-bounces at mailman.qth.net [mailto:icom-bounces at mailman.qth.net] On
Behalf Of GGLL
Sent: 04 March 2006 11:35
To: ICOM Reflector
Subject: Re: [ICOM] Turning up SSB power on 756PRO

	Another approach is to feed a 1 KHz audio tone at the mic input,
adjusting mic level and tone oscillator audio output to the point where ALC
meter just begins to show the smallest indication. Here you read the
wattmeter indication. Past this point, where ALC begins to work you will
obtain a only few more watts, but power output will tend to stay at a fixed
level, which in my opinion, to be acceptable should be no more than 120
watts.

Best regards
Guillermo - LU8EYW.

John Geiger escribió:
> Yes, I have tried that and a sustained whistle shows around 85-90 
> watts on the 756PRO meter.
> 
> 73s JohnNE0P
> 
> ----- Original Message -----
> From: "GGLL" <nagato at arnet.com.ar>
> To: "ICOM Reflector" <icom at mailman.qth.net>
> Sent: Saturday, March 04, 2006 4:13 PM
> Subject: Re: [ICOM] Turning up SSB power on 756PRO
> 
> 
> 
>>What about a sustained whistle in SSB?. Which level of output power 
>>does
> 
> it
> 
>>achieve?.
>>I think if CW is abt 100 watts out, the SSB should be the same.
>>
>>Best regards
>>Guillermo - LU8EYW.
>>
>>John Geiger escribió:
>>
>>>I got my Icom 756PRO and while it is a great radio, it is only 
>>>hitting
> 
> about 70 watts on voice peaks on SSB, and this is according to the 
> meter on the 756PRO as well.  The 756 original I had would do the full 
> 100 out on SSB according to its meters (had 2 of them, they both did it).
> 
>>>I remember reading on the Icom reflector that the SSB was set at the
> 
> factory for 70 watts so it would match the PW1 without any adjustments 
> being necessary.  That message also said that you could turn up the 
> power to 100 watts internally.  I have briefly looked in the service 
> manual and didn't find exactly how to do this.
> 
>>> Does anyone here know how to get the SSB power up to 100 watts?  It 
>>> is
> 
> doing the full 100W on CW and FM.
> 
>>>73s John NE0P
>>>----
>>>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/
>>>
>>
>>----
>>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/
>>
> 
> 
> ----
> 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/
> 
----
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/



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