K3 on 10

[WA9VEE]

It seems to me the K3 receive could use more punch on 10M. I had fun on 10M
CW last weekend during the contest and it reminded me that I used to use a
CB set to check for skip on 11 meters, thus probably an opening on 10M.

That got me to listen on 27MHz with the K3 and the receive sounded low
compared to the CB set I was using via an antenna switch. Exactly like it
could use a preamp. Which come to think of it is how SSB 10M on the K3
sounds to me also.

I haven't tried 6M yet, but perhaps if that preamp could be made to cover
28MHz also, it would be a good combination.
______________________________________________________________
Elecraft mailing list
Home: http://mailman.qth.net/mailman/listinfo/elecraft
Help: http://mailman.qth.net/mmfaq.htm
Post: mailto:[hidden email]

This list hosted by: http://www.qsl.net
Please help support this email list: http://www.qsl.net/donate.html

[Barry N1EU]

WA9VEE wrote

It seems to me the K3 receive could use more punch on 10M.

Yes, I've similarly found that overall rf/if gain seems a bit low on 10M.  I'd hope that this could be addressed with dsp gain rather than external hardware.

73,
Barry N1EU

[Bill W4ZV]

Barry N1EU wrote

WA9VEE wrote

It seems to me the K3 receive could use more punch on 10M.

Yes, I've similarly found that overall rf/if gain seems a bit low on 10M.  I'd hope that this could be addressed with dsp gain rather than external hardware.

 

But external 10m hardware is more fun!  :-)

http://users.vnet.net/btippett/images/W4zv1.jpg

Now we wait for the sunspots to make 10 fun again.

73,  Bill

[Jan Erik Holm]

Even with a 6/6/6 stack on 10 and a RX with MDS
of 135 dB (I think it is) you will benefit with
a low NF preamp.
However, antenna gain is NOT everything on 10m,
we are getting close to VHF  and I rather would
be interested in antenna noise temperature but
maybe you just will tell us that your antennas
are optimized for just that.

/ Jim SM2EKM
-----------------
Bill W4ZV wrote:

>
>
> Barry N1EU wrote:
>>
>>
>> WA9VEE wrote:
>>> It seems to me the K3 receive could use more punch on 10M.
>>>
>> Yes, I've similarly found that overall rf/if gain seems a bit low on 10M.
>> I'd hope that this could be addressed with dsp gain rather than external
>> hardware.
>>  
>
> But external 10m hardware is more fun!  :-)
>
> http://users.vnet.net/btippett/images/W4zv1.jpg
>
> Now we wait for the sunspots to make 10 fun again.
>
> 73,  Bill
>
>

______________________________________________________________
Elecraft mailing list
Home: http://mailman.qth.net/mailman/listinfo/elecraft
Help: http://mailman.qth.net/mmfaq.htm
Post: mailto:[hidden email]

This list hosted by: http://www.qsl.net
Please help support this email list: http://www.qsl.net/donate.html

[Barry N1EU]

Barry N1EU wrote

I'd hope that this could be addressed with dsp gain rather than external hardware.

The reason I said this is that I cranked up the FL GN setting in the config menu to +8dB as a temporary measure during the 10M contest and this gave me the extra gain I needed on 10M.  So it would be easy for the K3 dsp firmware to embed extra gain for 10M.

73,
Barry N1EU

[-.-. --.-N3TU -.-. --.-]

I didn't notice a drop on 10/11 meters on the RX. I pulled out two 11 meter radios out of the attic and did a comparison. The RX was the same. I've even tried to get the weakest signal I could find on 11 meters and compare it to the RX and all three heard them. I also compared the RX to close stations on 10 meters and their HF rigs are pulling in the same signals with the same signal strength. What I am having problem is when you tune each band from bottom to top, there are quite a few birdies or very narrow weak transmissions. I tested this with no antennas hooked up to the K3.

WA9VEE wrote

It seems to me the K3 receive could use more punch on 10M. I had fun on 10M
CW last weekend during the contest and it reminded me that I used to use a
CB set to check for skip on 11 meters, thus probably an opening on 10M.

That got me to listen on 27MHz with the K3 and the receive sounded low
compared to the CB set I was using via an antenna switch. Exactly like it
could use a preamp. Which come to think of it is how SSB 10M on the K3
sounds to me also.

I haven't tried 6M yet, but perhaps if that preamp could be made to cover
28MHz also, it would be a good combination.
______________________________________________________________
Elecraft mailing list
Home: http://mailman.qth.net/mailman/listinfo/elecraft
Help: http://mailman.qth.net/mmfaq.htm
Post: mailto:[e-mail]

This list hosted by: http://www.qsl.net
Please help support this email list: http://www.qsl.net/donate.html