[Amps] 3 dB mobile power increase

[PA3DUV]

Bill,

Thanks for the info.
Interesting setup with four 1200 watt amps. Are you operating on 13.8 VDC?

Concerning the SG500: I found that the are  somewhat forgiving to short SWR 
changes, but will trip quickly on undervoltage. So a stiff power supply is 
mandatory.

I've heard that Henry has stopped the production of HF amplifiers, so I 
assume the SS1200 is not available anymore.

CCI does not reply to e-mail, they might be out of business too.

Cheers, Dick
PA3DUV



----- Original Message ----- 
From: "Dr. William J. Schmidt, II" <bill at wjschmidt.com>
To: "PA3DUV" <pa3duv at planet.nl>
Sent: Saturday, February 12, 2005 4:56 PM
Subject: Re: [Amps] 3 dB mobile power increase


> Yes the trouble is... they monitor too many things... and will trip 
> off-line.  When one trips, the other trips.  The CCI combiners are very 
> good quality... and are relatively cheap.  I currently use four 1200 watt 
> CB amplifiers combined together in the mobile... and let them loaf at 1500 
> watts output.
>
> The Henry SS1200 is another option.  I have a friend that has one.  They 
> work well.  You might check out the CCI kits too.  I think you can build 
> something just as good for les than half the price.
>
> Sincerely,
>
> Dr. William J. Schmidt, II  K9HZ
> Trustee of the North American QRO - Central Division Club - K9ZC
>
> Email: bill at wjschmidt.com
> WebPage: www.wjschmidt.com
>
> "If computers get too powerful, we can organize them into a committee; 
> that will do them in."  -- Bradley's Bromide
>
>
> ----- Original Message ----- 
> From: "PA3DUV" <pa3duv at planet.nl>
> To: <wmschmidt at charter.net>
> Sent: Friday, February 11, 2005 4:26 PM
> Subject: Re: [Amps] 3 dB mobile power increase
>
>
>> Thanx!
>> If the two SG500 units pose a problem I will sell them and get SS1200 
>> from Henry. I need to redo the DC system in the car anyway. I know they 
>> are sensible for SWR changes I use ine , but with appropriate splitter 
>> and combiner design that should work ok. I need to provide adequate T/R 
>> swithing though.
>>
>> Dick
>>
>> ----- Original Message ----- 
>> From: <wmschmidt at charter.net>
>> To: "Dick Knol" <dick.knol at planet.nl>
>> Sent: Friday, February 11, 2005 8:51 PM
>> Subject: Re: [Amps] 3 dB mobile power increase
>>
>>
>>> I've done this... Try Communication Concepts for the combiners.  The SGC 
>>> power cubes dont behave well when combined though...
>>>
>>>>
>>>> From: Dick Knol <dick.knol at planet.nl>
>>>> Date: 2005/02/10 Thu PM 07:02:26 GMT
>>>> To: Amps at contesting.com
>>>> Subject: [Amps] 3 dB mobile power increase
>>>>
>>>> Gentlemen,
>>>>
>>>> I just purchased another SG500 solid state HF amplifier.
>>>> The plan is to install this unit ajacent to the other SG500 amplifier 
>>>> in my car, and to combine both outputs in order to achieve a 3 dB power 
>>>> gain.
>>>> Both units will be powered from 2 dedicated 100 AH gell cell batteries.
>>>>
>>>> Does anyone have experience with high power splitters/combiners?
>>>>
>>>> Both SG500 units will be driven from the IC706MKII through a splitter, 
>>>> and the output combined and terminated in the HiQ 5-80 centerloaded 
>>>> vertical mounted on the trailer hitch.
>>>> What issues have to be taken into account in order to build a combiner 
>>>> according to sound engineering standards?
>>>>
>>>> Cheers, Dick Knol
>>>> PA3DUV
>>>> _______________________________________________
>>>> Amps mailing list
>>>> Amps at contesting.com
>>>> http://lists.contesting.com/mailman/listinfo/amps
>>>>
>>>
>>
>>
>
>