[Elecraft] [KPA500] Peculiar behavior : possible solution
Gary Gregory
garyvk4fd at gmail.com
Sat Oct 27 15:26:04 EDT 2012
*Jack,
That has been my suspicion since the KPA500FT arrived. I wait till the
banner has cleared AND the kpa500 has been acknowledged by the K3.
In the early days of testing I noticed this anomaly quite often but since I
started to 'wait' for the K-Line to complete 'turn on' the issue has not
returned.
Gary
*
On 28 October 2012 03:31, Jack Berry <we5st at yahoo.com> wrote:
> My theory on the "Peculiar behavior" issue:
> I have seen this problem several times before and finally decided it's an
> issue of interrupted "handshaking" between the K3 and KPA500. Seems that
> all communicating digital devices go through and introduction to confirm
> communication before they get down to business.
> My solution is to power on the K3,
> -wait till the banner has cleared and then hit the KPA500 front panel ON
> button.
> -Wait till the "KPA500 On" banner has cleared and then switch from Standby
> to Operate.
>
> When I have taken the few extra seconds to all the handshaking to
> complete, I don't recall ever seeing a failure of the KPA500 to deliver
> full power.
>
> God Bless & 73!Jack - WE5ST
>
>
> ________________________________
> From: W5RDW <rwhitetexas at verizon.net>
> To: elecraft at mailman.qth.net
> Sent: Saturday, October 27, 2012 12:06 PM
> Subject: Re: [Elecraft] [KPA500] Peculiar behavior : no power output on
> Operate
>
> Update........
>
> I just turned on the K3/KPA500/P3 as usual (KPA500 is OPER, not Standby)
> and
> listened to the band for awhile. I heard a strong station calling on 12
> meters SSB from Scotland and gave him a call and noticed only the K3 was
> putting out power (probably 20 or so watts, the low drive I usually use to
> drive the KPA500). He answered me and I then came back to him on the OVER,
> but now, the K3/KPA500 was putting out 400-450 watts as normal
> --
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--
*Gary*
*Start the day off slow, then taper off.........*
K3 #679
KPA500FT #18
KAT500FT 007
P3 #1629
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