K3 and satellite comms

[tom kenville]

I am wondering if the K3 might be suitable for satellite comms.

Differing UP and DOWN link.
Transverters.
Computer control..

Any thoughts on this ?

--
thanks and 73's
Tom Kenville  --  W6TJK

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[w0mu]

Out the door today!

 

Thanks!

 

"A slip of the foot you may soon recover, but a slip of the tongue you may never get over." Ben Franklin

 

---

From: [hidden email] [mailto:[hidden email]] On Behalf Of tom kenville
Sent: Thursday, February 19, 2009 4:56 PM
To: [hidden email]
Subject: [Elecraft] K3 and satellite comms

I am wondering if the K3 might be suitable for satellite comms.

Differing UP and DOWN link.
Transverters.
Computer control..

Any thoughts on this ?

--
thanks and 73's
Tom Kenville  --  W6TJK

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[Julian, G4ILO]

tom kenville wrote

I am wondering if the K3 might be suitable for satellite comms.

Differing UP and DOWN link.
Transverters.
Computer control..

Any thoughts on this ?

As far as 70cm is concerned you'd have the same issue discussed in an earlier thread about repeaters. The K3 can only tune 2MHz in an IF so you can only cover 432 to 434 MHz. If you were only interested in satellites you could presumably change the crystal in the transverter.

You would also need full duplex operation. I don't know if the second receiver allows this. Perhaps someone who has one can confirm or deny this.

[Don Wilhelm-4]

Tom,

Satellite comms usually require full duplex operation, and the K3 does
not do that, nor can the transmit frequency be changed while
transmitting at this time.

The year the K3 was first shown at Dayton, I overheard Wayne addressing
duplex operation, and he stated that it would *might* be possible when
using the transverter outputs, but definitely not from the high power
output.  The "might be possible" was qualified by Wayne stating that it
would require a lot of testing for interactions.

73,
Don W3FPR

tom kenville wrote:

> I am wondering if the K3 might be suitable for satellite comms.
>
> Differing UP and DOWN link.
> Transverters.
> Computer control..
>
> Any thoughts on this ?
>
> --
> thanks and 73's
> Tom Kenville  --  W6TJK
>

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[KK7P]

> Satellite comms usually require full duplex operation,

Full duplex is certainly preferred, though by no means required.

> and the K3 does not do that,

Correct, although it *may* become possible through the transverter port
in combination with the KRX3 second receiver.

> nor can the transmit frequency be changed while
> transmitting at this time.

Actually, the K3 transmitter *can* be tuned while transmitting.  This
was a design requirement from very early in the product design.

73,

Lyle KK7P
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[Don Wilhelm-4]

Good information Lyle.  Thanks for the updated information.

73,
Don W3FPR

Lyle Johnson wrote:

>> Satellite comms usually require full duplex operation,
>>    
>
> Full duplex is certainly preferred, though by no means required.
>
>  
>> and the K3 does not do that,
>>    
>
> Correct, although it *may* become possible through the transverter port
> in combination with the KRX3 second receiver.
>
>  
>> nor can the transmit frequency be changed while
>> transmitting at this time.
>>    
>
> Actually, the K3 transmitter *can* be tuned while transmitting.  This
> was a design requirement from very early in the product design.
>
> 73,
>
> Lyle KK7P
> ______________________________________________________________
> Elecraft mailing list
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