K3 6m pre-amp
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Anyone have any new information on the 6m pre-amp for the K3. I'm aware that it was being tested back
in January - just wondering when its likely to become available. Hopefully it will be in kit form. 73 to all Trevor G0KTN _______________________________________________ Elecraft mailing list Post to: [hidden email] You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com |
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Haven't really had time to use my K3 on 50MHz, but when I tried it
the sensitivity seemed quite a bit down on my K2/KXV50 combination. Unfortunately I have sold the KXV50, so I can't do an A/B comparison. Is this what the preamp is meant to address ? 73 Stewart G3RXQ On Sun, 23 Mar 2008 19:51 +0000 (GMT Standard Time), Trevor Smithers wrote: > Anyone have any new information on the 6m pre-amp for the K3. I'm aware that it was > being tested back > in January - just wondering when its likely to become available. > > Hopefully it will be in kit form. > > 73 to all > Trevor G0KTN > _______________________________________________ > Elecraft mailing list > Post to: [hidden email] > You must be a subscriber to post to the list. > Subscriber Info (Addr. Change, sub, unsub etc.): > http://mailman.qth.net/mailman/listinfo/elecraft > > Help: http://mailman.qth.net/subscribers.htm > Elecraft web page: http://www.elecraft.com _______________________________________________ Elecraft mailing list Post to: [hidden email] You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com |
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>Is this what the preamp is meant to address
Have a look at the K3 Test from Bavaria pdf half way down page 11 - note from Wayne. http://www.bavarian-contest-club.de/projects/K3_english.pdf 73 to all Trevor G0KTN _______________________________________________ Elecraft mailing list Post to: [hidden email] You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com |
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Yes, wondering how that will affect connection of a XV144?
-- 73 de M0XDF / K3 #174 On 24 Mar 2008, at 10:25, Trevor Smithers wrote: >> Is this what the preamp is meant to address > > Have a look at the K3 Test from Bavaria pdf half way down page 11 - > note from Wayne. > http://www.bavarian-contest-club.de/projects/K3_english.pdf > > 73 to all > Trevor G0KTN > _______________________________________________ > Elecraft mailing list > Post to: [hidden email] > You must be a subscriber to post to the list. > Subscriber Info (Addr. Change, sub, unsub etc.): > http://mailman.qth.net/mailman/listinfo/elecraft > > Help: http://mailman.qth.net/subscribers.htm > Elecraft web page: http://www.elecraft.com _______________________________________________ Elecraft mailing list Post to: [hidden email] You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com |
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In reply to this post by Trevor Smithers
"It attaches directly to the RX ANT IN and OUT jacks". Does that mean you need to have the KXV3 module to use this preamp, or does it mean the preamp uses the internal connections that the KXV3 would use? I wouldn't have expected to need the KXV3 module unless I actually wanted to use external transverters to work bands above 6m.
Julian, G4ILO. K2 #392 K3 #222 KX3 #110
* G4ILO's Shack - http://www.g4ilo.com * KComm - http://www.g4ilo.com/kcomm.html * KTune - http://www.g4ilo.com/ktune.html |
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In reply to this post by Trevor Smithers
Thanks Trevor,
I can't see any comment made by the BCC re the 6m sensitivity, only Wayne's response. I have checked my K3 on all other bands, and it is spot on the money. Unfortunately I have no accurate signal sources for 50Mhz. Now my friend is back from a holiday in Australia I can make a comparison with his Japanese Black Box. At the moment, based on my memory of a local beacon received on the K2/KXV50 is 3-4 S points down on my K3 . 73 Stewart G3RXQ On Mon, 24 Mar 2008 10:25 +0000 (GMT Standard Time), Trevor Smithers wrote: >> Is this what the preamp is meant to address >> > Have a look at the K3 Test from Bavaria pdf half way down page 11 - note from Wayne. > http://www.bavarian-contest-club.de/projects/K3_english.pdf > > 73 to all > Trevor G0KTN > _______________________________________________ > Elecraft mailing list > Post to: [hidden email] > You must be a subscriber to post to the list. > Subscriber Info (Addr. Change, sub, unsub etc.): > http://mailman.qth.net/mailman/listinfo/elecraft > > Help: http://mailman.qth.net/subscribers.htm > Elecraft web page: http://www.elecraft.com _______________________________________________ Elecraft mailing list Post to: [hidden email] You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com |
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In reply to this post by Trevor Smithers
My 6m setup is not the greatest. I have a beam in the garage, but
to put that up means moving the HF antenna, so it will have to wait for the better weather. Yes, I had just tried the ant vs dummy load comparison. The noise level increases with the antenna connected, but whether that is due to band or local electrical noise I can't be sure. It is probably that I have got used to seeing a significant noise reading on the S meter on the bands below 30MHz ! 73 Stewart G3RXQ On Mon, 24 Mar 2008 12:19:46 +0000, Brendan Minish wrote: > In my quiet rural location with a 7 element long yagi fed with feeder > totalling about 0.5dB of feeder loss, I find that the K3 is sensitive > enough (just) to hear to the band noise floor. > My Icom 7800 was more sensitive on 6m (& a superb 6m radio in general) > but since the K3 is sensitive enough to hear to the band noise floor I > suspect that adding a premap in my case is not going to help. > Eavesdropping on EME QSO's ( i have yet to do EME on 6m with the K3) > seems to indicate that the in my setup adding a preamp is going to make > little or no difference. > > A simple test is to compare the noise level of a Dummy load with the > noise level received on an antenna. If you hear more nose on the antenna > than you do on the Dummy load then it its unlikely that adding a preamp > will help in your situation. > > 73 > Brendan EI6IZ > > > On Mon, 2008-03-24 at 08:01 +0000, Stewart Baker wrote: >> Haven't really had time to use my K3 on 50MHz, but when I tried it >> the sensitivity seemed quite a bit down on my K2/KXV50 >> combination. Unfortunately I have sold the KXV50, so I can't do an >> A/B comparison. >> >> Is this what the preamp is meant to address ? >> >> 73 >> Stewart G3RXQ >> On Sun, 23 Mar 2008 19:51 +0000 (GMT Standard Time), Trevor >> Smithers wrote: >>> Anyone have any new information on the 6m pre-amp for the K3. >> I'm aware that it was >>> being tested back >>> in January - just wondering when its likely to become >>> >>> Hopefully it will be in kit form. >>> >>> 73 to all >>> Trevor G0KTN >>> _______________________________________________ >>> Elecraft mailing list >>> Post to: [hidden email] >>> You must be a subscriber to post to the list. >>> Subscriber Info (Addr. Change, sub, unsub etc.): >>> http://mailman.qth.net/mailman/listinfo/elecraft >>> >>> Help: http://mailman.qth.net/subscribers.htm >>> Elecraft web page: http://www.elecraft.com >>> >> >> _______________________________________________ >> Elecraft mailing list >> Post to: [hidden email] >> You must be a subscriber to post to the list. >> Subscriber Info (Addr. Change, sub, unsub etc.): >> http://mailman.qth.net/mailman/listinfo/elecraft >> >> Help: http://mailman.qth.net/subscribers.htm >> Elecraft web page: http://www.elecraft.com _______________________________________________ Elecraft mailing list Post to: [hidden email] You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com |
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In reply to this post by Stewart Baker
In my quiet rural location with a 7 element long yagi fed with feeder
totalling about 0.5dB of feeder loss, I find that the K3 is sensitive enough (just) to hear to the band noise floor. My Icom 7800 was more sensitive on 6m (& a superb 6m radio in general) but since the K3 is sensitive enough to hear to the band noise floor I suspect that adding a premap in my case is not going to help. Eavesdropping on EME QSO's ( i have yet to do EME on 6m with the K3) seems to indicate that the in my setup adding a preamp is going to make little or no difference. A simple test is to compare the noise level of a Dummy load with the noise level received on an antenna. If you hear more nose on the antenna than you do on the Dummy load then it its unlikely that adding a preamp will help in your situation. 73 Brendan EI6IZ On Mon, 2008-03-24 at 08:01 +0000, Stewart Baker wrote: > Haven't really had time to use my K3 on 50MHz, but when I tried it > the sensitivity seemed quite a bit down on my K2/KXV50 > combination. Unfortunately I have sold the KXV50, so I can't do an > A/B comparison. > > Is this what the preamp is meant to address ? > > 73 > Stewart G3RXQ > On Sun, 23 Mar 2008 19:51 +0000 (GMT Standard Time), Trevor > Smithers wrote: > > Anyone have any new information on the 6m pre-amp for the K3. > I'm aware that it was > > being tested back > > in January - just wondering when its likely to become available. > > > > Hopefully it will be in kit form. > > > > 73 to all > > Trevor G0KTN > > _______________________________________________ > > Elecraft mailing list > > Post to: [hidden email] > > You must be a subscriber to post to the list. > > Subscriber Info (Addr. Change, sub, unsub etc.): > > http://mailman.qth.net/mailman/listinfo/elecraft > > > > Help: http://mailman.qth.net/subscribers.htm > > Elecraft web page: http://www.elecraft.com > > > _______________________________________________ > Elecraft mailing list > Post to: [hidden email] > You must be a subscriber to post to the list. > Subscriber Info (Addr. Change, sub, unsub etc.): > http://mailman.qth.net/mailman/listinfo/elecraft > > Help: http://mailman.qth.net/subscribers.htm > Elecraft web page: http://www.elecraft.com Brendan Minish, Westnet, Technology House, Castlebar, Co Mayo. 1850 930305 Registered in Ireland, Company no. 399770 Western Broadband Networks Limited, T/A WestNet -- Don‘t complain. Nobody will understand. Or care. And certainly don‘t try to fix the situation yourself. It‘s dangerous. Leave it to a highly untrained, unqualified, expendable professional. _______________________________________________ Elecraft mailing list Post to: [hidden email] You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com |
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In reply to this post by Julian, G4ILO
> ...I wouldn't have
> expected to need the KXV3 module unless I actually wanted to use external > transverters to work bands above 6m. Note that the KXV3 provides five BNC connectors. Two (XVTR IN and XVTR OUT) are dedicated for transverter use, or other applications for which you need a nominal 1 mW signal. One (IF OUT) is dedicated for tapping the *.215 Mhz IF, for such things as a panadaptor. Two are dedicated for modifying the receive signal path (RX ANT IN and RX ANT OUT). This can accommodate a receive only antenna (such as a beverage for MF work), "filed day filters" for multi-multi contest stations, or a 6M preamp, among other things. Thus, the KXV3 is not just for transverters, but for significantly added flexibility to the basic K3 for a variety of purposes. 73, Lyle KK7P _______________________________________________ Elecraft mailing list Post to: [hidden email] You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com |
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In reply to this post by Stewart Baker
> Haven't really had time to use my K3 on 50MHz, but when I tried it
> the sensitivity seemed quite a bit down on my K2/KXV50 > combination. Unfortunately I have sold the KXV50, so I can't do an > A/B comparison. > > Is this what the preamp is meant to address ? The 6m preamp, when available, is meant to help in those cases where a lower noise figure at the receiver input (or lower receiver temperature if you prefer to think of it that way) coupled with the required additional front end gain to provide that lower noise figure, would be expected to provide improved receive performance as determined by the station system design. Your 6m receiving system may or may not benefit from this. It depends entirely on your station's design and where the K3 as a component fits into that design. 73, Lyle KK7P _______________________________________________ Elecraft mailing list Post to: [hidden email] You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com |
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In reply to this post by M0XDF
> Yes, wondering how that will affect connection of a XV144?
No impact. The XV144 attaches to different BNC connectors on the KXV3. YOU can have an XV144, XV22 and XV432 attached to the K3 and still connect (or not connect) the 6m preamp as you desire. 73, Lyle KK7P _______________________________________________ Elecraft mailing list Post to: [hidden email] You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com |
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In reply to this post by KK7P
OK. The "XV" nomenclature is a bit confusing. I could have said that I would not have expected to need a KXV3 to use 6m when the K3 is supposed to support it already. But judging by the last couple of comments on sensitivity perhaps a preamp isn't really needed anyway.
Julian, G4ILO. K2 #392 K3 #222 KX3 #110
* G4ILO's Shack - http://www.g4ilo.com * KComm - http://www.g4ilo.com/kcomm.html * KTune - http://www.g4ilo.com/ktune.html |
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In reply to this post by KK7P
On Mon, 24 Mar 2008 07:05:53 -0700, Lyle Johnson wrote:
>> Haven't really had time to use my K3 on 50MHz, but when I tried it >> the sensitivity seemed quite a bit down on my K2/KXV50 >> combination. Unfortunately I have sold the KXV50, so I can't do an >> A/B comparison. >> >> Is this what the preamp is meant to address ? >> > The 6m preamp, when available, is meant to help in those cases where a > lower noise figure at the receiver input (or lower receiver temperature > if you prefer to think of it that way) coupled with the required > additional front end gain to provide that lower noise figure, would be > expected to provide improved receive performance as determined by the > station system design. > > Your 6m receiving system may or may not benefit from this. It depends > entirely on your station's design and where the K3 as a component fits > into that design. > > 73, > > Lyle KK7P QSL Lyle, I think what it all goes to prove is what a good front end the XV50 (not KXV50 as in my previous) has. The only problem I see here with having a pre-amp connected to the KXV3 is that I also use the RX ant input for a HF receive antenna. I suspect that I would need to implement some external relay switching for that.. 73 Stewart G3RXQ > _______________________________________________ > Elecraft mailing list > Post to: [hidden email] > You must be a subscriber to post to the list. > Subscriber Info (Addr. Change, sub, unsub etc.): > http://mailman.qth.net/mailman/listinfo/elecraft > > Help: http://mailman.qth.net/subscribers.htm > Elecraft web page: http://www.elecraft.com _______________________________________________ Elecraft mailing list Post to: [hidden email] You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com |
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In reply to this post by Stewart Baker
Hallo,
> I can't see any comment made by the BCC re the 6m sensitivity, > only Wayne's response. I am working on the translation of a much delayed update of the BCC report. In the mean time we have done MDS measurements for various bands: ----------------------------------------- Band w Preamp w/o Preamp 160m -129dBm -137dBm 80m -133dBm -138dBm 40m -133dBm -138dBm 20m -134dBm -138dBm 15m -132dBm -137dBm 10m -130dBm -137dBm 6m -129dBm -134dBm Table 2: MDS of the K3 at 400Hz ----------------------------------------- vy 73 de toby -- DD5FZ (ex 4n6fz, dj7mgq, dg5mgq, dd5fz) K2 #885 K2/100 #3248 K3/100 #67 _______________________________________________ Elecraft mailing list Post to: [hidden email] You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com |
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Toby:
Is your data reversed? Gregg -----Original Message----- From: [hidden email] [mailto:[hidden email]] On Behalf Of Toby Deinhardt Sent: Monday, March 24, 2008 10:41 AM To: Stewart Baker Cc: [hidden email] Subject: Re: [Elecraft] K3 6m pre-amp Hallo, > I can't see any comment made by the BCC re the 6m sensitivity, > only Wayne's response. I am working on the translation of a much delayed update of the BCC report. In the mean time we have done MDS measurements for various bands: ----------------------------------------- Band w Preamp w/o Preamp 160m -129dBm -137dBm 80m -133dBm -138dBm 40m -133dBm -138dBm 20m -134dBm -138dBm 15m -132dBm -137dBm 10m -130dBm -137dBm 6m -129dBm -134dBm Table 2: MDS of the K3 at 400Hz ----------------------------------------- vy 73 de toby -- DD5FZ (ex 4n6fz, dj7mgq, dg5mgq, dd5fz) K2 #885 K2/100 #3248 K3/100 #67 _______________________________________________ Elecraft mailing list Post to: [hidden email] You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com _______________________________________________ Elecraft mailing list Post to: [hidden email] You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com |
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I would certainly say so. :-)
Of course, he could be using the famous Larson E. Rapp Magic Band Preamp, which is so sensitive that its MDS actually reflects off of the Absolute Zero Noise Floor (see previous art on this subject) and becomes inverted. Truly, uh, incredible. :-) Bill W5WVO Gregg W6IZT wrote: > Toby: > > Is your data reversed? > > Gregg > > -----Original Message----- > From: [hidden email] > [mailto:[hidden email]] On Behalf Of Toby Deinhardt > Sent: Monday, March 24, 2008 10:41 AM > To: Stewart Baker > Cc: [hidden email] > Subject: Re: [Elecraft] K3 6m pre-amp > > Hallo, > >> I can't see any comment made by the BCC re the 6m sensitivity, >> only Wayne's response. > > I am working on the translation of a much delayed update of the BCC > report. In the mean time we have done MDS measurements for various > bands: > > ----------------------------------------- > Band w Preamp w/o Preamp > 160m -129dBm -137dBm > 80m -133dBm -138dBm > 40m -133dBm -138dBm > 20m -134dBm -138dBm > 15m -132dBm -137dBm > 10m -130dBm -137dBm > 6m -129dBm -134dBm > > Table 2: MDS of the K3 at 400Hz > ----------------------------------------- > > vy 73 de toby _______________________________________________ Elecraft mailing list Post to: [hidden email] You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com |
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In reply to this post by Stewart Baker
If I interpret you correctly, Stewart, perhaps the external switching
wouldn't be necessary of the Elecraft preamp had remotely selected bypass implemented. Bruce, NM5B > QSL Lyle, > I think what it all goes to prove is what a good front end the > XV50 (not KXV50 as in my previous) has. > > The only problem I see here with having a pre-amp connected to the > KXV3 is that I also use the RX ant input for a HF receive antenna. > I suspect that I would need to implement some external relay > switching for that.. > > 73 > Stewart G3RXQ _______________________________________________ Elecraft mailing list Post to: [hidden email] You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com |
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In reply to this post by KK7P
yes, thanks, I'd forgot it had 5 connectors as per your other post.
I think this is just another example of Elecraft being future proof. now for the flames saying the 6m performance should have been better in the first place :-) -- 73 de M0XDF / K3 #174 On 24 Mar 2008, at 14:09, Lyle Johnson wrote: >> Yes, wondering how that will affect connection of a XV144? > > No impact. > > The XV144 attaches to different BNC connectors on the KXV3. YOU can > have an XV144, XV22 and XV432 attached to the K3 and still connect > (or not connect) the 6m preamp as you desire. > > 73, > > Lyle KK7P Elecraft mailing list Post to: [hidden email] You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com |
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In reply to this post by Trevor Smithers
Upps - Thanks for catching that! Yes they are swapped!
vy 73 de toby Stewart Baker wrote: > Thanks Toby, > It shows that the K3 has a worse (not even equal) MDS at 50MHz > than on the lower bands. Are the column headings swapped ? > > 73 > Stewart G3RXQ > On Mon, 24 Mar 2008 15:41:24 +0100, Toby Deinhardt wrote: >> Hallo, >> >>> I can't see any comment made by the BCC re the 6m sensitivity, >>> only Wayne's response. >>> >> I am working on the translation of a much delayed update of the > BCC >> report. In the mean time we have done MDS measurements for > various bands: >> ----------------------------------------- >> Band w Preamp w/o Preamp >> 160m -129dBm -137dBm >> 80m -133dBm -138dBm >> 40m -133dBm -138dBm >> 20m -134dBm -138dBm >> 15m -132dBm -137dBm >> 10m -130dBm -137dBm >> 6m -129dBm -134dBm >> >> Table 2: MDS of the K3 at 400Hz >> ----------------------------------------- >> >> vy 73 de toby > > > > Elecraft mailing list Post to: [hidden email] You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com |
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In reply to this post by dj7mgq
Hi Bob,
> It looks like you may have gotten your column headings reveresed :-) Yep - mea culpa... > I read the K3 comparison the BCC group did earlier. You mentioned > you would be trying out the K3 in the 160m contests. Yes we have and we have also used it in several other contests. > Did you ever write up a report on that? I'm very curious to see your > experiences on 160m with the K3. Not really, but to give you a feel for the general opinion of the BCC members who have used it: The K3 is a very capable contest rig. During the Russian DX contest, DL8OBD said he was not always happy with the AGC. He was working mainly CW and I did the SSB parts. I have not had a chance to talk with him after the contest yet, to find exactly what he did not like. All others, e.g. DL2MLU, DL6RAI, DK4YJ, DG7RO, DK3YD, etc., have been happy with the default values for and action of the AGC in CW and/or SSB. One wierd comment was that one OM did not like the way some of the knobs, e.g. PWR/CMP, feel. He said they feel wobbly to him. This has never bothered me. I can not remember any other negative comments, apart from the SSB modulation, which is well on its way to being solved in the last couple versions of the firmware. I hope the SSB power level offset will solved soon as well. What else can I say... During CQ 160m CW the K3 was used as a secondary RX. I did not partake in this contest but was told that everything which could be heard with the K3 could also be heard with a TS-850 and vice-versa. And during the 160m SSB contest, the highlight was DL6RAI and DG7RO working Ducie Island about 20 minutes or so after our local sunrise! We could hear them working stations in the south western part of the USA, and that they heard us says a lot about the rigs (K3s), antennas and operators at both ends. Without having a direct A/B comparison, during a 2-meter contest I really had the strong impression I could still read SSB signals, which I would not have been able to read with a TS-850 as the backend. The transverter at our club station is a bit on the old side, but still quite good. The 2m contest was otherwise a bit of a disappointment, because the TX/RX switch of the 144MHz 500W PA malfunctioned. I was also very happy with the K3 in the RTTY WPX. I could get very close to a very strong local station and still dig out weak signals. The 400Hz roofing filter performed well in this role from our local club station, where we have a large contest station less than a mile away. I did not miss having a smaller roofing bandwidth. The dual passband RTTY DSP filter was not as useful as I had expected. It was nice to have, but I don't think I ever really needed it. vy 73 de toby -- DD5FZ (ex 4n6fz, dj7mgq, dg5mgq, dd5fz) K2 #885 K2/100 #3248 K3/100 #67 _______________________________________________ Elecraft mailing list Post to: [hidden email] You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com |
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