Tom,

The power cables are not the same for the 570 and 590.

Howard #3

----- Original Message ----- 
From: "Tom Behler" <[log in to unmask]>
To: <[log in to unmask]>
Sent: Monday, December 10, 2012 9:21 PM
Subject: Re: TS590 Output Power again


> Steve:
>
> I checked all the usual suspects as you listed, but did not check the
> carrier level.
>
> I can't imagine how it might have changed, but you never know.
>
> Also, I can  swap out rig power cables between the TS590 and TS570, just 
> to
> see if that would make a difference, and will do that tomorrow night.
>
> Auto tuner was off during entire process, and manual tuner was in bypass
> mode.
>
> 73 from Tom Behler: KB8TYJ
>
> ----- Original Message ----- 
> From: "Steve Forst" <[log in to unmask]>
> To: <[log in to unmask]>
> Sent: Monday, December 10, 2012 9:56 PM
> Subject: Re: TS590 Output Power again
>
>
>> The 590 is rated at 100 watts FSK, as well as CW, so keying in one  mode
>> is no harder on the rig than the other .  Of course if you were doing
>> super long  RTTY transmissions, you might want to back it down a bit,
>> but the radio won't  fold back power just because you are in FSK mode.
>>
>> You need to check the usual suspects:  auto tuner off, external tuner
>> either out of circuit or in bypass mode, known good jumper between radio
>> and dummy load, known good power cable and good connections.
>>
>> Did this just happen?   Did you maybe change the carrier level by
>> mistake ?  Carrier level is  press and hold the mic gain key.  If set
>> too low, both FSK and CW power will be down.  Default is 50,  but you
>> probably need to get lower than 20 to see a real drop in power.
>>
>> 73, Steve KW3A
>>
>>
>>
>>
>> On 12/10/2012 9:45 PM, Phil ote:
>>> Tom,
>>>
>>> First, what's your reflected power.  Second, I don't own that radio but
>>> your
>>> rig my be auto tuning the power down because you are testing it in the
>>> RTTY
>>> mode which doesn't want to run at 100 watts continuous duty cycle.  That
>>> happens to me in the AM mode checking power out.  A CW carrier works the
>>> best.
>>>
>>> Phil.
>>>
>>>
>>>
>>> ----- Original Message -----
>>> From: "Tom Behler" <[log in to unmask]>
>>> To: <[log in to unmask]>
>>> Sent: Monday, December 10, 2012 6:56 PM
>>> Subject: TS590 Output Power again
>>>
>>>
>>>> Hi, all.
>>>>
>>>> I know this issue has come up several times already in different forms.
>>>> In
>>>> fact, I'm the one who brought it up once when I feared that my Astron
>>>> RS35
>>>> power supply was beginning to fail.  So please bare with me as I raise
>>>> the
>>>> question of TS590 output power again.
>>>>
>>>> It seems that my TS590 is intent on only putting out about 70 watts
>>>> output,
>>>> even when the power output control is set at 100 watts.  In fact,
>>>> interestingly, if I use the output power meter on the TS590, the output
>>>> power reading given when I go beyond the 50 watt setting constantly
>>>> sticks
>>>> at 75 watts, whether I'm at a 55 watt setting, or a 100-watt setting.
>>>> Readings are similar with my TW1.
>>>>
>>>> I've done this testing with two different power supplies, and with both
>>>> a
>>>> resonant antenna, and a dummy load.
>>>>
>>>> I'm taking my output power readings by setting the rig to RTTY mode, 
>>>> and
>>>> pushing the push-to-talk button on my Heil Gold Line mic.
>>>>
>>>> Am I doing something wrong here?
>>>>
>>>> Is there a better way to measure output power with the TS590?
>>>>
>>>> Thanks and 73 from Tom Behler: KB8TYJ
>>>>
>>>
>>>
>>>
>>