Comments for ei6iz.com http://ei6iz.com Brendan's Radio Blog Sun, 08 Mar 2009 17:19:10 +0000 http://wordpress.org/?v=2.9.2 hourly 1 Comment on KRX3 the elecraft K3 Sub Receiver by ei6iz http://ei6iz.com/?p=12&cpage=1#comment-432 ei6iz Sun, 08 Mar 2009 17:19:10 +0000 http://ei6iz.com/?p=12#comment-432 Band independence is not in the release firmware yet, look for it in the 3.0 Beta that will be out soon. Band independence is not in the release firmware yet, look for it in the 3.0 Beta that will be out soon.

]]> Comment on KRX3 the elecraft K3 Sub Receiver by pierino de nardo http://ei6iz.com/?p=12&cpage=1#comment-408 pierino de nardo Sat, 28 Feb 2009 17:06:26 +0000 http://ei6iz.com/?p=12#comment-408 A: support@elecraft.com Oggetto: Problem on the K3 sub receiver band independence After to have installed the sub receiver module in my K3 rx-tx, and as from the owner’s manual (on pag. 37), I try to set the sub receiver to a different band from main, using “BSET” and “BAND” buttons. So this set don’t work, and on the display I read “MAIN”. Before I set in the CONFIG KRX3, the aux rf source on ANT-BNC. Then in the CONFIG I try to set to YES, the VFO IND: and again this set don’t work properly, and on the display I read “UNAVAIL”. The MCU firmware uploaded is REV. 2.67 ( the latest regular release). So where is the problem and how can I solve it ?. Many thanks and 73 de IV3YYK Pierino de nardo. A: support@elecraft.com

Oggetto: Problem on the K3 sub receiver band independence

After to
have installed the sub receiver module in my K3 rx-tx, and as from the
owner’s manual
(on pag. 37), I try to set the sub receiver to a
different band from main, using “BSET” and
“BAND” buttons. So this set
don’t work, and on the display I read “MAIN”.
Before I set in the
CONFIG KRX3, the aux rf source on ANT-BNC.
Then in the CONFIG I try to
set to YES, the VFO IND: and again this set don’t work properly,
and on
the display I read “UNAVAIL”.
The MCU firmware uploaded is REV. 2.67 (
the latest regular release).
So where is the problem and how can I
solve it ?.

Many thanks and 73 de IV3YYK Pierino de nardo.

]]> Comment on K3 Line output plots by pierino de nardo http://ei6iz.com/?p=22&cpage=1#comment-407 pierino de nardo Sat, 28 Feb 2009 17:02:36 +0000 http://ei6iz.com/?p=22#comment-407 --- A: support@elecraft.com Oggetto: Problem on the K3 sub receiver band independence After to have installed the sub receiver module in my K3 rx-tx, and as from the owner's manual (on pag. 37), I try to set the sub receiver to a different band from main, using "BSET" and "BAND" buttons. So this set don't work, and on the display I read "MAIN". Before I set in the CONFIG KRX3, the aux rf source on ANT-BNC. Then in the CONFIG I try to set to YES, the VFO IND: and again this set don't work properly, and on the display I read "UNAVAIL". The MCU firmware uploaded is REV. 2.67 ( the latest regular release). So where is the problem and how can I solve it ?. Many thanks and 73 de IV3YYK Pierino de nardo. —
A: support@elecraft.com

Oggetto: Problem on the K3 sub receiver band independence

After to
have installed the sub receiver module in my K3 rx-tx, and as from the
owner’s manual
(on pag. 37), I try to set the sub receiver to a
different band from main, using “BSET” and
“BAND” buttons. So this set
don’t work, and on the display I read “MAIN”.
Before I set in the
CONFIG KRX3, the aux rf source on ANT-BNC.
Then in the CONFIG I try to
set to YES, the VFO IND: and again this set don’t work properly,
and on
the display I read “UNAVAIL”.
The MCU firmware uploaded is REV. 2.67 (
the latest regular release).
So where is the problem and how can I
solve it ?.

Many thanks and 73 de IV3YYK Pierino de nardo.

]]> Comment on KRX3 the elecraft K3 Sub Receiver by ei6iz http://ei6iz.com/?p=12&cpage=1#comment-203 ei6iz Sat, 06 Dec 2008 23:33:01 +0000 http://ei6iz.com/?p=12#comment-203 Using 2 receivers tracked via software is not the same as diversity. Each K3 uses it's own internal frequency reference and as a result the two radios will always have at least a small frequency offset relative to each other. This offset destroys the stereo 'image' and renders diversity very much less effective. The Icom IC-7800 has an offset between the main and Sub RX (due to DDS decimation errors I think?) and this renders the 7800 nearly useless for diversity reception Using 2 receivers tracked via software is not the same as diversity.
Each K3 uses it’s own internal frequency reference and as a result the two radios will always have at least a small frequency offset relative to each other. This offset destroys the stereo ‘image’ and renders diversity very much less effective.
The Icom IC-7800 has an offset between the main and Sub RX (due to DDS decimation errors I think?) and this renders the 7800 nearly useless for diversity reception

]]> Comment on KRX3 the elecraft K3 Sub Receiver by W4UK http://ei6iz.com/?p=12&cpage=1#comment-200 W4UK Thu, 04 Dec 2008 15:58:25 +0000 http://ei6iz.com/?p=12#comment-200 Those who bought two K3s for SO2R contesting can link the two together to provide diversity reception. I have briefly described my setup on the elecraft list and the LP-Pan list. Google {w4uk k3 diversity} for info. Those who bought two K3s for SO2R contesting can link the two together to provide diversity reception. I have briefly described my setup on the elecraft list and the LP-Pan list. Google {w4uk k3 diversity} for info.

]]> Comment on KRX3 the elecraft K3 Sub Receiver by Arie PA3A http://ei6iz.com/?p=12&cpage=1#comment-146 Arie PA3A Sat, 15 Nov 2008 08:50:05 +0000 http://ei6iz.com/?p=12#comment-146 Absolutely wonderful recording. Thanks for putting it on your website. Amazing what that does to a pile up. My KRX3 is on its way. I just cannot wait to try this. 73, Arie PA3A Absolutely wonderful recording. Thanks for putting it on your website.

Amazing what that does to a pile up. My KRX3 is on its way. I just cannot wait to try this.

73,
Arie PA3A

]]> Comment on K3 Line output plots by ei6iz http://ei6iz.com/?p=22&cpage=1#comment-29 ei6iz Wed, 03 Sep 2008 12:42:26 +0000 http://ei6iz.com/?p=22#comment-29 My plots would suggest that you should run the LIN out settings on the K3 as high as you require to drive your soundcard correctly. The amount of distortion present on the lin out does not seem to increase as the output level is turned up on my K3, it actually decreases. Ghosts on the waterfall should be dealt with by choosing an appropriate filter and filter centre frequency as well as setting the dynamic range of your waterfall appropriately. Your mileage may vary and each setup is different. My plots would suggest that you should run the LIN out settings on the K3 as high as you require to drive your soundcard correctly. The amount of distortion present on the lin out does not seem to increase as the output level is turned up on my K3, it actually decreases.

Ghosts on the waterfall should be dealt with by choosing an appropriate filter and filter centre frequency as well as setting the dynamic range of your waterfall appropriately.

Your mileage may vary and each setup is different.

]]> Comment on K3 Line output plots by stephen arnold (kb9avs) http://ei6iz.com/?p=22&cpage=1#comment-28 stephen arnold (kb9avs) Wed, 03 Sep 2008 12:13:40 +0000 http://ei6iz.com/?p=22#comment-28 tell us non-technical folks what your plots suggest. Thanks. tell us non-technical folks what your plots suggest. Thanks.

]]> Comment on KRX3 the elecraft K3 Sub Receiver by ei6iz http://ei6iz.com/?p=12&cpage=1#comment-14 ei6iz Wed, 23 Jul 2008 00:27:33 +0000 http://ei6iz.com/?p=12#comment-14 The Left side is a log periodic yagi (M2 7-10-30) the right side is a 220m long beverage antenna aimed about 60 degrees. Someday all radios will work like this.. The Left side is a log periodic yagi (M2 7-10-30) the right side is a 220m long beverage antenna aimed about 60 degrees. Someday all radios will work like this..

]]> Comment on KRX3 the elecraft K3 Sub Receiver by Barry N1EU http://ei6iz.com/?p=12&cpage=1#comment-13 Barry N1EU Tue, 22 Jul 2008 17:13:17 +0000 http://ei6iz.com/?p=12#comment-13 Brendan, what are the two antennas being used on the 20M ssb clip? Nice job! 73, Barry N1EU Brendan, what are the two antennas being used on the 20M ssb clip?

Nice job!

73,
Barry N1EU

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