[Elecraft] Fw: Don't have a 50W dummy load

[Matt VK2RQ]

For the calibration procedure, you need the load to be a known 50 ohm resistive impedance. Using a 100W light bulb will not provide the required impedance, and will produce inaccurate results and possible damage the transceiver.

73, Matt VK2RQ

> On 26 Mar 2015, at 5:25 am, Bob Gibson via Elecraft <elecraft at mailman.qth.net> wrote:
> 
>  HOW ABOUT A LAMP WITH 100 WATT BLUB, THATS ALL US OLD GUYS HAD!   73s Bob W5RG
> 
>    ----- Forwarded Message -----
>  From: Warren Merkel <hullspeed21 at gmail.com>
> To: elecraft at mailman.qth.net 
> Sent: Wednesday, March 25, 2015 1:17 PM
> Subject: Re: [Elecraft] Don't have a 50W dummy load
> 
> That kit from OHR looks nicely done.  I wonder if the pcb was immersed in a gallon can of mineral oil instead of the included case, how much more power could it withstand then?  5x-10x maybe?  I could use the enclosure for something else. Otherwise I'd get a full paint can kit off ebay for about the same $.
> 
> Warren KD4Z
> 
>> On March 24, 2015 5:39:04 PM EDT, Brian <kb9bvn at gmail.com> wrote:
>> Excellent advice Don.  I bought a 100w dummy load kit from OHR. It's 
>> called the RFL-100 and it's about $40, comes in a very nice cabinet,
>> and 
>> takes less than an hour to build.  It has come in handy more times than
>> 
>> I can count.
>> 
>> http://www.ohr.com/rfl100.htm
>> 
>> Oak Hills has some good goods.
>> 
>> 73 de KB9BVN
>> Brian Murrey
> 
> 
> -- 
> Sent from my Android device with K-9 Mail. Please excuse my brevity.
> 
> 
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