[1000mp] Question about FT1000MP RF output rising during FT-8

Ed Hughes kg4w at comcast.net
Sun Aug 23 09:50:17 EDT 2020


Jason, have you tried this into a dummy load to see if it behaves the same ?

Ed
KG4W


On 8/23/2020 9:12 AM, James wrote:
> May well be normal for low, continuous output power to change as radio 
> warms up.  On the "200 watt" rig I run 50 watts of a digital signal 
> and have not seen the output power change significantly as radio gets 
> warm and fan comes on.  What you are seeing is probably not a 
> problem.  Mac   N8TT
>
> ------ Original Message ------
> From: "J Bowen" <sydbowen at gmail.com>
> To: 1000mp at mailman.qth.net
> Sent: 8/22/2020 6:31:30 PM
> Subject: Re: [1000mp] Question about FT1000MP RF output rising during 
> FT-8
>
>> Kinda like I'm sitting here right now, just sat down and started a JT-9
>> transmission. The first one showed 15 watts. The next one showed 20 
>> watts.
>>
>> Jason Bowen, KB5VXX
>>
>> On Mon, Aug 17, 2020, 22:45 J Bowen <sydbowen at gmail.com> wrote:
>>
>>>  So everyone, I have a question. I have noticed that my FT1000MP RF 
>>> output
>>>  starts out a bit low and rises as I transmit on FT-8. I have it 
>>> setup to
>>>  transmit 25 watts with the remember power settings set on the WSJT
>>>  software. Well the next day when starting to transmit the RF output is
>>>  close to 20/22 watts, and as I transmit the output rises to a bit 
>>> over 25
>>>  watts with me not touching any of the previous day's settings. If I 
>>> crank
>>>  the transmit audio power slider up on the WSJT software to push it 
>>> up to 25
>>>  watts, then I wind up having to pull it back down just a tad to 
>>> keep it at
>>>  25 watts. I also have to bump the audio level slider up a few db on
>>>  10meters. It seems like I'm getting increasing gain somewhere as the
>>>  transmit section warms up. Any idea what I have going on, or if 
>>> something
>>>  bad is fixing to happen to my radio? Thanks all. 73!
>>>
>>>  Jason Bowen, KB5VXX
>>>
>> ______________________________________________________________
>> 1000mp mailing list
>> Home: http://mailman.qth.net/mailman/listinfo/1000mp
>> Help: http://mailman.qth.net/mmfaq.htm
>> Post: mailto:1000mp at mailman.qth.net
>>
>> This list hosted by: http://www.qsl.net
>> Please help support this email list: http://www.qsl.net/donate.html
>
> ______________________________________________________________
> 1000mp mailing list
> Home: http://mailman.qth.net/mailman/listinfo/1000mp
> Help: http://mailman.qth.net/mmfaq.htm
> Post: mailto:1000mp at mailman.qth.net
>
> This list hosted by: http://www.qsl.net
> Please help support this email list: http://www.qsl.net/donate.html



More information about the 1000mp mailing list