Yep, I haven't used it much in the last five years though. It is my backup
HF rig. But, now that I'm upgrading to the 590, it is surplus.
----- Original Message -----
From: "Steve Dresser" <[log in to unmask]>
To: <[log in to unmask]>
Sent: Thursday, December 29, 2011 2:26 PM
Subject: Re: Reduced power output for TS590
> Steve,
>
> That 751A is old technology, but it's one of the truly great radios. I
> had
> one for 20 years, and have many fond memories of using it.
>
> Steve
>
> ----- Original Message -----
> From: "Steve" <[log in to unmask]>
> To: <[log in to unmask]>
> Sent: Thursday, December 29, 2011 14:20
> Subject: Re: Reduced power output for TS590
>
>
>> Tom,
>>
>> I doubt that the half volt difference is the problem.
>>
>> Have you made certain that you have the power level still set at maximum?
>>
>> Also, you are probably stressing over something that, although it might
>> be
>> interesting to know for certain was different, may not be since you
>> didn't
>> know what your reading was before you updated the firmware. Also, no
>> body
>> will know the difference in terms of signal level.
>>
>> By the way, I should have my 590 here next week. I'll be unloading my
>> Icom
>> IC-751A with voice synthesizer, external keypad, and 250Hz CW filter.
>>
>> Steve, K8SP
>> ----- Original Message -----
>> From: "Tom Behler" <[log in to unmask]>
>> To: <[log in to unmask]>
>> Sent: Thursday, December 29, 2011 7:15 AM
>> Subject: Reduced power output for TS590
>>
>>
>>> Hi, all.
>>>
>>> Last night, I was working with my TS590, and I found that it only
>>> seems to put out a maximum of about 65 or 70 watts when I connect it to
>>> a
>>> dummy
>>> load, or when I key the rig on a resonant frequency for one of my
>>> antennas. These power readings were taken with my TW1.
>>>
>>> I have checked the integrity of all of my internal coax jumpers, so that
>>> shouldn't be a contributing factor.
>>>
>>> I took DC voltage readings from my Astron RS35 power supply with my
>>> Omega
>>> talking multi-meter, and found that
>>> the supply voltage is 13.350. This voltage is lower than the 13.8 volts
>>> I
>>> would expect, which is causing me to wonder whether the supply is
>>> starting
>>> to fail. Low voltage is what could cause the rig to fold
>>> back, so I'm wondering if that is what is happening.
>>>
>>> Another thought I had was whether the problem might somehow be related
>>> to
>>> the firmware upgrade I
>>> just did?Specifically, I upgraded from firmware version 1.04 to 1.06
>>> this
>>> past Monday. I can't absolutely swear to higher output power readings
>>> before the firmware update, but I do believe they were higher--i.e.
>>> closer
>>> to 90 watts or so before the update.
>>>
>>> Is there a service menu adjustment for power output that I might check?
>>> I
>>> could probably get sighted assistance to help me with that if I had
>>> some
>>> detailed
>>> instructions as to how to get there.
>>>
>>> Just for the record, I took all power readings with the auto tuner off,
>>> and
>>> the tentech
>>> manual tuner in the bypass position. I took the readings in both RTTY
>>> mode and by pressing the "send" button on the rig's front panel.
>>>
>>>
>>> 73 from Tom Behler: KB8TYJ
>>
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