Re: [Elecraft] KPA-500 FCC docs

2011-03-16 Thread Jim Wiley
And has anyone noticed that the front panel indicators on the Alpha amp shown in the recent ads seem to show 1500 watts out, with pretty close to 2500 volts and 0.6 amps on the meters. WOW! !500 watts RF out for 1500 watts DC in. 100% efficiency!! There's a good mark for Wayne and Eric to

Re: [Elecraft] KPA-500 FCC docs

2011-03-16 Thread Bob Naumann
-Original Message- From: elecraft-boun...@mailman.qth.net [mailto:elecraft-boun...@mailman.qth.net] On Behalf Of Tim Tucker Sent: Tuesday, March 15, 2011 5:52 PM To: Bruce Beford Cc: elecraft@mailman.qth.net Subject: Re: [Elecraft] KPA-500 FCC docs The amount of power required is a function

Re: [Elecraft] KPA-500 FCC docs

2011-03-16 Thread Mike
The difference being that, with enough determination, the brick is edible.. 73 Mike NF4L On 3/16/2011 12:47 AM, Leigh L. Klotz Jr WA5ZNU wrote: Did anyone else notice the Alpha ad in QST over Christmas showed a fruitcake on the key instead of a brick? Leigh/WA5ZNU

Re: [Elecraft] KPA-500 FCC docs

2011-03-16 Thread Brendan Minish
On 16/03/2011 05:26, Gary Gregory wrote: *We have lots of fruitcakes in VK - some have an amateur license !!! But not many have KPA500's yet ;-) -- 73 Brendan EI6IZ __ Elecraft mailing list Home:

Re: [Elecraft] KPA-500 FCC docs

2011-03-16 Thread Guy Olinger K2AV
Hey, take it easy on my favorite flavor of biscuit 73, Guy. On Wed, Mar 16, 2011 at 9:17 PM, Brendan Minish ei6iz.bren...@gmail.comwrote: On 16/03/2011 05:26, Gary Gregory wrote: *We have lots of fruitcakes in VK - some have an amateur license !!! But not many have KPA500's yet ;-)

[Elecraft] KPA-500 FCC docs

2011-03-15 Thread Bruce Beford
Copy and paste onto one line in your browser: https://apps.fcc.gov/oetcf/eas/reports/ViewExhibitReport.cfm?mode=ExhibitsR equestTimeout=500calledFromFrame=Napplication_id=290417fcc_id='UTR-KPA500 ' Or, Go here: https://apps.fcc.gov/oetcf/eas/reports/GenericSearch.cfm Enter Elecraft for

Re: [Elecraft] KPA-500 FCC docs

2011-03-15 Thread Peter Chamalian
Yep, that works!! Thanks Pete, W1RM -Original Message- From: Bruce Beford [mailto:bruce.bef...@myfairpoint.net] Sent: Tuesday, March 15, 2011 5:13 PM To: elecraft@mailman.qth.net Subject: [Elecraft] KPA-500 FCC docs Copy and paste onto one line in your browser: https://apps.fcc.gov

Re: [Elecraft] KPA-500 FCC docs

2011-03-15 Thread S Sacco
I'm not loving this part too much Duty Cycle at 500 Watts 10 minutes key down / 5 minutes off' __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post:

Re: [Elecraft] KPA-500 FCC docs

2011-03-15 Thread Gary Gregory
*Why? I cannot think of a way I operate that would exceed a 10 minute transmission. Other than a 'Fault' ? Gary * On 16 March 2011 07:50, S Sacco nn4x.st...@gmail.com wrote: I'm not loving this part too much Duty Cycle at 500 Watts 10 minutes key down / 5 minutes off'

Re: [Elecraft] KPA-500 FCC docs

2011-03-15 Thread Tim Tucker
I'm a licensed Navy MARS operator. It is not uncommon to have very long digital messages that need to be sent using digital modes that will take longer than 10 minutes to send. This limitation pretty much eliminates this amplifier from being able to be used in my shack for MARS purposes. Now

Re: [Elecraft] KPA-500 FCC docs

2011-03-15 Thread Bruce Beford
I'm a licensed Navy MARS operator. It is not uncommon to have very long digital messages that need to be sent using digital modes that will take longer than 10 minutes to send. This limitation pretty much eliminates this amplifier from being able to be used in my shack for MARS purposes.

Re: [Elecraft] KPA-500 FCC docs

2011-03-15 Thread Fred Jensen
10 min key down out of a total of 15 min is a duty cycle of 0.6667 which seems pretty good to me. I don't think I want to pay for a CCS rating when I'm really very ICAS. RTTY is my most demanding mode. I was a bit concerned about my K3 on RTTY so I wrote a little Perl script to go through a

Re: [Elecraft] KPA-500 FCC docs

2011-03-15 Thread Tim Tucker
The amount of power required is a function of propagation and intended recipient. I can't say in advance of an *event*, how much power will be required. If 100 watts isn't cutting it on the first delivery attempt (it usually does), I'm not fooling around with 250 watts...I'm going straight to

Re: [Elecraft] KPA-500 FCC docs

2011-03-15 Thread Lyle Johnson
Heat. 73, Lyle KK7P The real question is whether or not the 10 minute duty cycle is a function of heat or is it a timer / firmware controlled function? __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft

Re: [Elecraft] KPA-500 FCC docs

2011-03-15 Thread Jack Brindle
Lyle is correct (as usual). It is not a firmware function until things get too hot for the fan to handle. Jack B, W6FB On Mar 15, 2011, at 4:09 PM, Lyle Johnson wrote: Heat. 73, Lyle KK7P The real question is whether or not the 10 minute duty cycle is a function of heat or is it a

Re: [Elecraft] KPA-500 FCC docs

2011-03-15 Thread Guy Olinger K2AV
I can make you a very long list of amps and their finals which are destroyed by key down at full ham power for 10 minutes. I can make a long list of transceivers that will not run their rated power CCS. A K3 will do that by common experience, but Wayne ain't guaranteeing it. Typically we don't

Re: [Elecraft] KPA-500 FCC docs

2011-03-15 Thread Leigh L. Klotz Jr WA5ZNU
Guy, K2AV wrote: OR, you can buy a ham amp that specifies a brick on key rating (usually a derating). Alpha's have them, and some others. Did anyone else notice the Alpha ad in QST over Christmas showed a fruitcake on the key instead of a brick? Leigh/WA5ZNU -- View this message in

Re: [Elecraft] KPA-500 FCC docs

2011-03-15 Thread Gary Gregory
*We have lots of fruitcakes in VK - some have an amateur license !!! Grin Gary * On 16 March 2011 14:47, Leigh L. Klotz Jr WA5ZNU le...@wa5znu.org wrote: Guy, K2AV wrote: OR, you can buy a ham amp that specifies a brick on key rating (usually a derating). Alpha's have them, and