[Elecraft] Convert KAT 100-2 back to KAT 100-1

2013-11-27 Thread Bob Whelan
Hi
I have obtained a KAT 100-2 , the version in an EC2, and would like to
convert it back to the low height version KAT100-1 . Anyone got a spare set
of panels or would like to swop panels ?

73 Bob G3PJT



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Re: [Elecraft] K3 no power out

2013-04-24 Thread Bob Whelan
5w and a dummy load

73 Bob



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[Elecraft] Sad News!!!

2010-09-25 Thread Bob Whelan
I'm writing this with tears in my eyes,my fam and I came down here to Kuala 
Lumpur,Malaysia for a short vacation unfortunately we were mugged at the park 
of the hotel where we stayed,all cash,credit card and cell were stolen off us 
but luckily for us we still have our passports with us.
 
We've been to the embassy and the Police here but they're not helping issues at 
all and our flight leaves in less than 3hrs from now but the hotel manager 
won't let us leave until we settle the bills.
 
Am freaked out at the moment.. 
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[Elecraft] Re Steppers

2005-03-31 Thread Bob Whelan

Hi

I have used these 4 coil steppers in a auto tuned amplifier.
The really simple way is to use a BASIC Stamp with a ULN2803A motor 
driver chip. Have a look at page 99 of the BASIC Stamp Programming 
Manual 1.9 .

I used steppers salvaged from a fax machine.
All the driver pulses are generated in software which can then be 
integrated with the rest of your control routines.


73

Bob G3PJT



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[Elecraft] Noisy polling

2005-02-18 Thread Bob Whelan
Chris
 
It is some sort of earth loop - I can't be more specific since it depends on 
your installation. I have heard the same when I put my headphone switcher in 
the same box as the controller I use for copying freq/mode between the two K2s 
here.
I found mine by systematically disconnecting the variious control and audio 
cables and earth lines.
 
161
 
Bob G3PJT
 
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[Elecraft] KIO2 not talking anymore - my findings

2005-01-17 Thread Bob Whelan
Hi
 
Following my recent post here is what I found.
 
There was no hardware problem - all checked out OK except for the TXD pin which 
was hi - this is not a fault as it toggles hi - lo with data and can be checked 
with a 'scope.
 
Thanks to Don for the very useful info that if you have a terminal programme 
(Hyperterm )  running on the KIO2 and you go to the 'PORT ON' menu and then 
press 'DISPLAY' , the K2 sends 'FAxxx' to the port (where x...xx - 11 
of them, is the freq info on VFO A) .
 
My problem was a software problem with the logging and control programmes I run 
on KIO2. It seems that it is possible to write to the KIO2/K2 in such a way (FA 
and IF commands) that the KIO2 does not appear to function, probably something 
to do with timing?. Initially I was not able to reset the KIO2 by merely 
turning the K2 off and on. But after I used the test above the K2 reset and the 
KIO2 worked perfectly.
 
So if you have this problem I would try the above first before  getting the 
screwdriver out.
 
I see today that someone else had the same problem - hope this helps
 
73 and thanks again to Don and Lyle for the suggestions
 
Bob G3PJT
 
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[Elecraft] KIO2 just stopped talking

2005-01-13 Thread Bob Whelan
Hi
 
My KIO2 has just stopped communicating.
Osc is OK, neg volts -10
 
Volt checks look OK except for
 
U1 Pin 5 which is 13 should be -8
U1 Pin 12 is 0 should be 5?
 
BUT U1 pin 5 goes to the TXD line and thence to the control boards U6 pin 25, 
which is shown in the Manual as being at 0 normally.
 
Any ideas appreciated
 
73 and thanks for reading this
 
Bob G3PJT
 
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