[FoxHunt] 80m Foxhunt Tx

[Kenneth E. Harker]

    That's only happened to me once (in 2007 in Lake Tahoe) and while I was within 10 meters, in my case it was helpful, as the flag was on the other side of a tree and I could have more easily walked past it. 

-WM5R

On Dec 4, 2011, at 10:00 AM, Marvin Johnston <marvin at west.net> wrote:

> I've heard a number of concerns over the years about being able to DF 
> the oscillators.
> 
> If someone is close enough to DF the oscillator signal, they are 
> probably close enough to see the flag. My experience is that rarely can 
> the oscillator be heard more than 30 feet or so from the transmitter.
> 
> Maybe a concern for championships events, but certainly not for practice.
> 
> Marvin
> 
> 
> On 2011-12-03 22:30, Dale Hunt wrote:
>> 
>> I'd be concerned with the backwave if the oscillator isn't shut off
>> between cycles.  We had this problem in 1999 when the oscillators
>> could be DFed when one got close even when the transmitter was off.
>> 
>> I've used this circuit with good results:
>> 
>> http://www.qsl.net/g3pto/pippin.html
>> 
>> simple to build from the junkbox, easy to key, no backwave, and the
>> entire final emitter circuit can be replaced by either a parallel
>> tuned circuit with a loaded Q of 1 ( 2uH and 1000pf) or a link winding
>> around the antenna loading coil.
>> 
>>    - Dale WB6BYU
>> 
>> 
>> ______________________________________________________________
>> FoxHunt mailing list
>> Home: http://mailman.qth.net/mailman/listinfo/foxhunt
>> Help: http://mailman.qth.net/mmfaq.htm
>> Post: mailto:FoxHunt at mailman.qth.net
>> 
>> This list hosted by: http://www.qsl.net
>> Please help support this email list: http://www.qsl.net/donate.html
>> 
> 
> ______________________________________________________________
> FoxHunt mailing list
> Home: http://mailman.qth.net/mailman/listinfo/foxhunt
> Help: http://mailman.qth.net/mmfaq.htm
> Post: mailto:FoxHunt at mailman.qth.net
> 
> This list hosted by: http://www.qsl.net
> Please help support this email list: http://www.qsl.net/donate.html