Re: [IRCA] QRRe: A idea for future DX Tests.....

["Bob Foxworth" <rfoxwor1@xxxxxxxxxxxxxxx>]

> 
> Also, Brandon and Les keep referring to a TXCO reveiver - I ( and I
> presume others ) have no idea what that is, which suggests none of us
> may have such.

A typo, it is actually TCXO (Temp. Controlled Xtal Oscillator). Just
a small part of the receiver. The crystal is put into an oven which
might run about 90 degrees or such, thermostat controlled.
The crystal is cut to work at that freq and the thermostat will
eliminate variable drift rates which would happen if the xtal
is left to run at ambient temp.

Remember when BC stations would be 300 Hz off freq
because the xtal oven heaters were off? Back then the xtal
can, with all its thermal packing, was the size of a large
soup can.

I think the idea of verrrrrry slloooow code might not pass the
sanity check of GMs and PDs with all that lengthy tone
irritating listeners. One or two call letter reps is tolerable.

I'd sure like to know listener reaction to the sweep tones!

I'd readily second Craig's suggestion (which has been made
before by some of us) of using 5000 Hz tone, and detecting
as CW at +/- 5 kHz of nominal. Then the speed nearly would
not matter.

But it surely is not AM mode. It's good for a propagation validator.

- Bob who snored soundly this AM to make an 0500 wakeup.
I did not consider trying, fearing LA QRM with WSM.


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