[time-nuts] 75Z vs 50Z for GPS receivers

[Dr Bruce Griffiths]

Didier

You can always build your own 100A avalanche transistor pulser using 
several Zetex FMMT413s.

Bruce

Brooke Clarke wrote:
> Hi Didier:
>
> Yes they are on eBay.  The tunnel diode models have a narrower pulse 
> than the later models that use something more rugged.  Probably for all 
> practical purposes one of the newer ones would work well and last 
> better.  I think the military bought boat loads of these and I've heard 
> from a number of people that use them and like them a lot.
>
> Have Fun,
>
> Brooke Clarke
>
> w/Java http://www.PRC68.com
> w/o Java http://www.pacificsites.com/~brooke/PRC68COM.shtml
> http://www.precisionclock.com
>
>
>
> Didier Juges wrote:
>
>   
>> Going over the spec for the 1502, it seems like a nice instrument. I am 
>> worried about the fragility of the tunnel diode though. When my neighbor 
>> AD4TK fires up his amplifier, I have measured up to 1W of his signal 
>> going down my feedline (on the 80m slopper antenna)...
>>
>> Are these things on eBay?
>>
>> Didier KO4BB
>>
>> Brooke Clarke wrote:
>>  
>>
>>     
>>> Hi Didier:
>>>
>>> The Tek 1502 is great for doing this, especially if you have the 
>>> optional strip chart recorder.  It's what it was made to do.
>>> http://www.pacificsites.com/~brooke/Tek1502.shtml
>>>
>>> Have Fun,
>>>
>>> Brooke Clarke
>>>  
>>>    
>>>
>>>       
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>>
>>     
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