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Re: [TenTec] eagle

To: Discussion of Ten-Tec Equipment <tentec@contesting.com>
Subject: Re: [TenTec] eagle
From: mike bryce <prosolar@sssnet.com>
Reply-to: Discussion of Ten-Tec Equipment <tentec@contesting.com>
Date: Sat, 2 Apr 2011 21:31:58 -0400
List-post: <tentec@contesting.com">mailto:tentec@contesting.com>
yes, calibrated  dummy load
HP calibrated voltmeter
comm analyzer rated for HF use


Mike, WB8VGE
SunLight Energy Systems
The Heathkit Shop
http://www.theheathkitshop.com/
J e e p
o|||||||o 

A man with one clock knows what time it is. A man with two clocks is never 
sure. 




On Apr 2, 2011, at 8:21 PM, Don Jones wrote:

> Power dB = 10LOG*(P1/P2).
> 
> Question #1, do you have a calibrated volt meter? Might be useful to check 
> your input voltage.
> Question #2, is your "50 ohm load" calibrated?
> Question #3, I am not familiar with the Motorola Comm Analyzer... Is it rated 
> for HF freq's? It is my impression that the Motorola stuff is mostly VHF/UHF 
> rated equipment. 
> 
> Peace, 
> 
> Don Jones ko7i
> Arlington, WA
> 
> 
> -----Original Message-----
> From: Mike Bryce [mailto:prosolar@sssnet.com] 
> Sent: Friday, April 01, 2011 6:37 PM
> To: Discussion of Ten-Tec Equipment
> Subject: Re: [TenTec] eagle
> 
> I have access to a very expensive motorla comm analyzer. $50k, calibrated to 
> traceable standards. 
> 
> My personal coaxial dynamic watt meter and if course a 50 ohm dummy load.  
> 
> So, I am not using an old radio shack CB watt meter, but calibrated RF test 
> equipment. 
> 
> Mike 
> 
> Sent from my iPhone
> 
> On Apr 1, 2011, at 8:59 PM, Richards <jruing@ameritech.net> wrote:
> 
>> Hi Mike ---  I fully sympathize with your point in your position.  I 
>> agree the rig should be as advertised.
>> 
>> As I wrestle with the issue, myself – considering the tolerance issues 
>> and the fact that meters don't really show full power necessarily, ... 
>> I'm wondering how do you  (i.e., we)  know you (we) are only getting 85 
>> W out when it is set for 100 W out ?     If our meters are not fully 
>> accurate, how do we know we are not getting something like 95 – 100 W 
>> out when our meters say 85 – 90 W with a 10% accuracy swing?
>> 
>> I'm not picking a fight and I'm not doubting you – I'm only wondering 
>> how you reached the conclusion you are not getting 100 W as advertised. 
>> How did you test your rig to demonstrate you are not really getting 
>> the full output?
>> 
>> ------------------
>> Happy Trails.
>> =======================  Richards / K8JHR  =========================
>> 
>> On 4/1/2011 8:02 PM, Mike Bryce wrote:
>>> I'll keep this short as two thumb typing is hard to do.
>>> 
>>> I understand the electronic aspect of it as well as the tolerance and 
>>> logarithm of real power in the real world.
>>> 
>>> Please, please, please understand I KNOW that no one on the other end will 
>>> know the difference.
>>> 
>>> But, I paid almost $3000 for a radio that displays on the front panel 100 
>>> watts output when the real power into a dummy load @13.9 volts @ the radio 
>>> power connection I have 76 watts on 20 meters out of the box brand spanking 
>>> new.
>>> 
>>> This is NOT a 'simple adjustment-- no one will notice' problem.
>>> 
>>> No one, not me, not you, should pay three grand and then need to  crack the 
>>> case open to adjust anything.
>>> 
>>> This is not a 'no one can tell the difference problem,' this is a quality 
>>> control problem.
>>> 
>>> If the display on my brand new $3k  Omni 7 says 100 watts, then by god the 
>>> power output should be "close."
>>> 
>>> 85 watts is fine, but the display should reflect the rf output of 85 watts 
>>> (not lab gear, I know)
>>> 
>>> 
>>> With sore thumbs,
>>> 
>>> Mike
>>> 
>>> Sent from my iPhone
>>>> 
>>>> 
>>> _______________________________________________
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>>> TenTec@contesting.com
>>> http://lists.contesting.com/mailman/listinfo/tentec
>>> 
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> 
> 
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