According to the manual the HX needs 41 amps.  This can be either2 
supplies capable of 20.5 amps each, or a single 41 amp supply.   If you 
go the 2 supply route, they need to be adjusted  to something like a 
half volt of each other.

Neither one comes with a built in supply.   The radios are really pretty 
small and very popular for mobile use.    The controls are on a remote 
unit  that connects to the  main unit via cable.
If it were me, I would just go with the 100 watt unit (TS-480 SAT).

For pc connection, just a 9 pin straight through serial cable (not a 
null modem cable).   There is free software on the kenwood site  for pc 
control.
73, Steve  KW3A




On 2/13/2013 9:39 PM, Don Risavy, Jr.; NR4DR wrote:
> Ok well wouldn't any 35 amp power supply run either as have two different
> models of power supplies that can use on either as guess neither one comes
> with a supply?
> Well have used the ts440 for years only on 100 watts and works great for
> what need to use it for i.e. traffic handling and occasional qso and dx.
> So would the extra 100 watts really make much difference?
> That way would get the tuner to use when needed like if had to use it out at
> field day or any shelters for emergency communications.
> So would I need any special computer interface cable to use the rig through
> the computer if can do that?
> Thanks.
>
>
> -----Original Message-----
> From: For blind ham radio operators [mailto:[log in to unmask]]
> On Behalf Of Steve Forst
> Sent: Wednesday, February 13, 2013 5:17 PM
> To: [log in to unmask]
> Subject: Re: Kenwood H.F Transceivers
>
> Don,
>
> The HX is 200 watts and has no tuner.  The SAT is 100 watts and has internal
> auto tuner.  you would need a larger power supply to get 200 watts from the
> HX.
>
> The VGS-1 speech board is optional on both.  A 9 pin  serial connection
> is standard.  There are slots for up to 2 optional filters.   Filters
> need to be soldered in.
>
> 73, Good luck, Steve KW3A
>
> On 2/13/2013 6:07 PM, Don Risavy, Jr.; NR4DR wrote:
>> Hello all,
>>
>> I'm fixing to purchase a new Kenwood H.f transceiver for the first
>> time since 1988 and needed to know which of the Kenwood TS480's would
>> be the best as know HRO and may be others have one of them on sale
>> right now according to their web site when checked last night or
>> yesterday; but, don't recall the model.
>>
>> So needed to know which one would be the best or better to purchase as
>> know there's at least two different models and what about accessories
>> like speech, computer interface and filtering as didn't know if those
>> radio's come with any filters pre-installed.
>>
>> Also won't need a tuner since have one of the LDG external automatic
> tuners.
>>
>> So if can let me know ASAP or immediate would appreciate this very
>> much  so can check around for prices.
>>
>> Tnx cul 73 nr4dr
>>
>>
>>
>>
>>
>>
>>
>>
>>
>
>
>