K3: 461 - 469 and 471 - 478 KHz

[Edward R Cole]

Now that provisional use has been granted experimental licensee's to
use 461 - 469 and 471 - 478 KHz, I am curious if the K3 will be
capable of operating there (like it is currently >490-KHz) using TEST mode.


73, Ed - KL7UW, WD2XSH/45
======================================
BP40IQ   500 KHz - 10-GHz   www.kl7uw.com
EME: 144-1.4kw, 432-100w, 1296-testing*, 3400-winter?
DUBUS Magazine USA Rep [hidden email]
======================================
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[wayne burdick]

The synth won't usually tune that low without a modification, and the  
modification would make the synth not function correctly on the other  
bands. So the answer is probably no. But you could use an external low-
frequency transverter.

73,
Wayne
N6KR


On Mar 17, 2011, at 10:47 AM, Edward R. Cole wrote:

> Now that provisional use has been granted experimental licensee's to  
> use 461 - 469 and 471 - 478 KHz, I am curious if the K3 will be  
> capable of operating there (like it is currently >490-KHz) using  
> TEST mode.
>
> 73, Ed - KL7UW, WD2XSH/45
> ======================================
> BP40IQ   500 KHz - 10-GHz   www.kl7uw.com
> EME: 144-1.4kw, 432-100w, 1296-testing*, 3400-winter?
> DUBUS Magazine USA Rep [hidden email]
> ======================================
>

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[Edward R Cole]

Wayne,

I anticipated that so have built a simple low-power transmit converter:
http://www.kl7uw.com/600m_XVTR.jpg

Since I already use a SDR-IQ, that receives down to 500-Hz, it did
not make it transceive.  10mw is adequate to drive my surplus 100w
NDB Beacon transmitter (replaces xtal osc.).

We will continue to be licensed at 495-510 KHz for another year or
until the WRC meets to decide on ham radio privileges on 600 meter
band.  I am using the K3 as transceiver, running in the TEST
mode.  To drive the new converter, the K3 will be tuned 10.461-10.478
MHz in the TEST mode.  I have a station 10-MHz OCXO reference that
will serve as LO.  The circuit is followed by a three-pole toroid LP
filter, plus the NDB input has a tunable BP filter.

thanks,
73, Ed - KL7UW

At 10:09 AM 3/17/2011, you wrote:

>The synth won't usually tune that low without a modification, and the
>modification would make the synth not function correctly on the other
>bands. So the answer is probably no. But you could use an external
>low- frequency transverter.
>
>73,
>Wayne
>N6KR
>
>
>On Mar 17, 2011, at 10:47 AM, Edward R. Cole wrote:
>
>>Now that provisional use has been granted experimental licensee's to
>>use 461 - 469 and 471 - 478 KHz, I am curious if the K3 will be
>>capable of operating there (like it is currently >490-KHz) using
>>TEST mode.
>>
>>73, Ed - KL7UW, WD2XSH/45
>>======================================
>>BP40IQ   500 KHz - 10-GHz   www.kl7uw.com
>>EME: 144-1.4kw, 432-100w, 1296-testing*, 3400-winter?
>>DUBUS Magazine USA Rep [hidden email]
>>======================================

73, Ed - KL7UW, WD2XSH/45
======================================
BP40IQ   500 KHz - 10-GHz   www.kl7uw.com
EME: 144-1.4kw, 432-100w, 1296-testing*, 3400-winter?
DUBUS Magazine USA Rep [hidden email]
======================================
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