[Elecraft] KPA1500 HIGH DISS and GAIN LOW

[Jorge Diez - CX6VM]

hello

I am in the station right now. Connected a Dummy Load to ANT1 KPA1500 and
tested each band, driving with 25 watts

160 mts: on KPA1500 display: FAULT: PWR DISS 2973 watts - on K3 display:
FAULT 11
80 mts: on KPA1500 display: FAULT: PWR DISS 2776 watts - on K3 display:
FAULT 11
60 mts: on KPA1500 display: FAULT: PWR DISS 2919 watts - on K3 display:
FAULT 11
40 mts: on KPA1500 display: FAULT: LOW GAIN RATIO 2 - on K3 display: FAULT 6
30 mts: IS OK.  on KPA1500 display: 10 Mhz 53A 20C PWR 1482W 1.0:1
20 mts: IS OK, but a little lower power.  on KPA1500 display: 14 Mhz 47A
22C PWR 1268W 1.0:1
17 mts: on KPA1500 display: FAULT: PWR DISS 2647 watts - on K3 display:
FAULT 11
15 mts: on KPA1500 display: FAULT: LOW GAIN RATIO 0 - on K3 display: FAULT 6
12 mts: too much lower power, only 240 watts. on KPA1500 display: 24 Mhz
24A 22C PWR 240W 1.0:1
10 mts: too much lower power, only 558 watts. on KPA1500 display: 28 Mhz
50A 25C PWR 558W 1.0:1
6 mts: on KPA1500 display: FAULT: PWR DISS 2295 watts - on K3 display:
FAULT 11

So it seems my KPA1500 is very bad, hope I can fix it locally!

73,
Jorge
CX6VM/CW5W


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El lun, 15 may 2023 a las 11:43, Jorge Diez - CX6VM (<cx6vm.jorge at gmail.com>)
escribió:

> Hello Pete
>
> thanks for the reply
>
> last weekend I disconnected the K3/0 Mini at home (I use it remotely with
> my antennas farm in the contest site
>
> When I connected it again i notice that on 6 mts band the audio was very
> low, i need to full increase LINE on my Tascam audio box and also the AF on
> the K3/0 mini
>
> Now I notice that when I increase power on the K3/0 mini, does
> not increase on the station, KPA1500 show me 25 watts for example, but I
> increased the K3/0 mini power to 90 watts
>
> So I think I will need to go to the station to see if there´s something
> wrong there
>
> All my monobands antennas are 1:1, and a warc tribander is under 2:1 and
> KPA1500 tuner adjust the t3 warc bands with no problem to 1:1 or 1.3:1
>
> 73,
> Jorge
> CX6VM/CW5W
>
>
>
> El lun, 15 may 2023 a las 10:24, Pete Smith N4ZR (<pete.n4zr at gmail.com>)
> escribió:
>
>> Jorge, do you have a dummy load?  If so, Can you try your amp on it
>> instead of an antenna.  Also, try turning your transceiver down so that it
>> is only putting out half of normal when driving the amp, and see if the
>> amp's tuner works better then.  Does your tuner EVER reach a low SWR on any
>> band, any antenna?
>>
>> 73, Pete N4ZR
>>
>> On 5/15/2023 7:05 AM, Jorge Diez - CX6VM wrote:
>>
>> hello
>>
>> this weekend I have two new messages on KPA1500
>>
>> HIGH DISS and GAIN LOW
>>
>> I was trying to TUNE again my antennas on different bands and appears HIGH
>> DISS
>>
>> Any idea what´s wrong?
>>
>>
>
> --
> 73,
> Jorge
> CX6VM/CW5W
>


-- 
73,
Jorge
CX6VM/CW5W