John:
I did just what you suggested, for one set of readings.
I took the TS590, connected it to the TW1, and then to the dummy load, and
still got the reduced power.
73 from Tom Behler: KB8TYJ
----- Original Message -----
From: "John Miller" <[log in to unmask]>
To: <[log in to unmask]>
Sent: Thursday, December 29, 2011 7:55 AM
Subject: Re: Reduced power output for TS590
> I'd physically take everything but the tw-1, and dummy load out of line
> and
> try it that way first just in case. I have heard though the 590 and 480
> are
> just that voltage sensitive though that even that half a volt can cut
> power
> back quite a bit. Not having one or having any plans of getting one, I
> can't
> say for sure but I have been told it doesn't take much with those and some
> other newer radios.
> ----- 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
>
|
