IF tap?
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Is there a good place to tap the IF stream for an output? I have a spectrum analyzer and was thinking of running an IF-out to the analyzer, it doesn't matter what frequency if its under a gig.
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Steve,
You did not say which transceiver you have, so we can't really answer except to say that the K3 does have an IF output if you install the KXV3 option. 73, Don W3FPR On 1/2/2012 1:51 PM, Steve KC8QVO wrote: > Is there a good place to tap the IF stream for an output? I have a spectrum > analyzer and was thinking of running an IF-out to the analyzer, it doesn't > matter what frequency if its under a gig. > ______________________________________________________________ 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 |
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In reply to this post by Steve KC8QVO
> Is there a good place to tap the IF stream for an output?
Are you asking this about a Wells-Gardner BC-348-R? For some reason, it always seems to help if the applicable radio is identified. :-) Mike / KK5F ______________________________________________________________ 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 |
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In reply to this post by Don Wilhelm-4
I figured the radio was implied since I posted in the K2 forum
 In any event, its a K2 SN 6950. I'm just looking for a constant frequency I can use post-VFO to run through my spectrum analyzer so I can see the band I'm on.
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Steve,
This Elecraft email reflector stopped being the K2 reflector as soon as the K1 was available, and now there are questions about the K3, K2, K1, KX1, now the KX3, KPA500, KRC2, mini-modules, and any other product that Elecraft has produced or has announced for the future. Clifton Labs Z10000-K2 buffer can be installed in the K2 to provide IFoutput for your spectrum analyzer. Look at http://www.cliftonlaboratories.com/z10000_buffer_amp.htm. 73, Don W3FPR On 1/2/2012 3:05 PM, Steve KC8QVO wrote: > I figured the radio was implied since I posted in the K2 forum In any event, > its a K2 SN 6950. I'm just looking for a constant frequency I can use > post-VFO to run through my spectrum analyzer so I can see the band I'm on. > > ______________________________________________________________ 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 |
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Or to your softrock for a panadaptor. Clifton Labs
has high quailty/easy to build IF ports. I put one together in my K2, it works excellent. Leroy AB7CE -----Original Message----- From: Don Wilhelm Sent: Monday, January 02, 2012 2:01 PM To: Steve KC8QVO Cc: [hidden email] Subject: Re: [Elecraft] IF tap? Steve, This Elecraft email reflector stopped being the K2 reflector as soon as the K1 was available, and now there are questions about the K3, K2, K1, KX1, now the KX3, KPA500, KRC2, mini-modules, and any other product that Elecraft has produced or has announced for the future. Clifton Labs Z10000-K2 buffer can be installed in the K2 to provide IFoutput for your spectrum analyzer. Look at http://www.cliftonlaboratories.com/z10000_buffer_amp.htm. 73, Don W3FPR On 1/2/2012 3:05 PM, Steve KC8QVO wrote: > I figured the radio was implied since I posted in the K2 forum In any > event, > its a K2 SN 6950. I'm just looking for a constant frequency I can use > post-VFO to run through my spectrum analyzer so I can see the band I'm on. > > ______________________________________________________________ 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 ______________________________________________________________ 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 |
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Dear OMs and Yls, I am considering along with K1VGF skipping Dayton this year and visiting the Visalia Hamfest but I am looking for some information. I understand that Elecraft is sponsoring the Contest University which is an event I would want to attend but I know little else about this event. So perhaps some of the W6 land crew might fill me in: 1)The Contest University is on the Friday. Is it April 20? 2)Does the Hamfest run on both Saturday and Sunday and how big an event is it? Crudely what is the size of this event in comparison to Dayton in percent terms? I doubt there are any dinners but perhaps this is not the case and if there are I would like to know about them. 3) Is Fresno the best airport to fly into? Are there any other nearby airports to consider? We would be flying from Connecticut and I understand that AA has flights from Hartford via Dallas. 4) Does the Hamfest take place in the Holiday Inn as I believe the Contest University does? Does anyone have contact details for this Hotel and yes I can search on line. Any information would be most welcome and you be the judge as to whether it should be sent off the reflector. I am not trying to annoy others but saw mention of this a few weeks back and started thinking. Now I can not find the original message. A quick search of the internet has so far not turned up very much regarding the 2012 event. 73 Doug EI2CN ______________________________________________________________ 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 |
Re: Elecraft [OT] Visalia Hamfest
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On 1/2/2012 1:51 PM, Doug Turnbull wrote:
> Dear OMs and Yls, > I am considering along with K1VGF skipping Dayton this year and > visiting the Visalia Hamfest but I am looking for some information. I > understand that Elecraft is sponsoring the Contest University which is an > event I would want to attend but I know little else about this event. So > perhaps some of the W6 land crew might fill me in: > > 1)The Contest University is on the Friday. Is it April 20? in the past, this event has been produced by our club, NCCC. See www.nccc.cc I've not seen plans for this year, but would expect the same. I think we call it Contest Academy, and there are usually two tracks, one for beginners and one more advanced. Some pretty good guys do the teaching in both tracks. > 2)Does the Hamfest run on both Saturday and Sunday Usually starts Friday afternoon, goes through Sunday noon. Search on Visalia DX Convention. > Crudely what is the size of this event in comparison to Dayton in > percent terms? Much smaller in attendance, programs, and exhibits. I'd guess 20% of Dayton. > I doubt there are any dinners but perhaps this is not the > case and if there are I would like to know about them. There are dinners for DX, Contesting, 160M, and IOTA, in addition to the Saturday night banquet.. And some of us go elsewhere for dinner in town and return in time for the banquet program -- it's a Holiday Inn in a not very big town, and the food is forgettable. > 3) Is Fresno the best airport to fly into? Are there any other nearby > airports to consider? We would be flying from Connecticut and I understand > that AA has flights from Hartford via Dallas. Visalia is roughly equidistant to San Francisco and Los Angeles, and most folks who fly in go through one of the airports around those cities. Oakland San Jose, and Sacramento are served by Southwest. Many who fly in also take time to see the sights in one of those cities, or along the way. There's a VOA antenna farm a few miles off the highway about 70 miles S of Visalia (no possibility of a tour, but it's easy to drive around it and look at it), and Visalia is pretty close to Yosemite and the Sierra. Although high elevation roads will still be closed by snow that time of year, there's still some pretty country to look at. And after a few meals in the hotel, you'll appreciate having the car to run into town for some very nice local restaurants. Some guys also get together around SF on Thursday to take in a ball game, then drive down to Visalia. I've driven some east coast visitors on tours to Alacatraz, and to a couple of vintage ship to shore transmitting sites along the coast. LAX has a bit of a jazz scene, though not nearly as much as in years past. Ditto for SF. You should also be able to hitch a ride from SF or LAX with one of the locals if you put out a timely request. From SF, the easy way to do this is to have an NCCC member post to our email reflector, and that's also a good way to find a room. You could also get some shack tours just by asking. . > 4) Does the Hamfest take place in the Holiday Inn as I believe the Contest > University does? Yes to both. > Does anyone have contact details for this Hotel and yes I > can search on line. It's fully booked the day after reservations are opened, and that was several months ago. There are more than enough good hotels nearby to hold attendees, including one just across the parking lot. The others you need to drive to. Rooms (or a bed in a 2-bed room) become available periodically as plans are changed by health, personal circumstance, and the XYL. I suggest that you contact DX or contesting friends if you want to stay in that hotel. Visalia is fun event, a lot smaller than Dayton. While it's officially a DX event (and sponsored by major clubs in SF and LAX), there are getting to be as many contesters involved in organizing it and attending it. And because it's a lot smaller than Dayton, it's easy to meet and hang out with those who do attend. 73, Jim K9YC ______________________________________________________________ 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 |
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In reply to this post by Don Wilhelm-4
In regards to the reflector/forum - I posted on the website under the K2 forum. There are also categories for the K1, KX1, K3, etc. I am not using the e-mail system to get the post in to the reflector. I forgot that the e-mail list does not "categorize" posts in the same regard that the website does for the reflector. Just playing around here - I dug out my manual and found the RX Mixer. I tapped the Post-Mixer Amp side of C159 and the ground side of R80 with a length of RG-174. Then I ran that back to the receive antenna connector on the 160 module (desoldered the wires to the 160 module). I figured this would give me a 4.915mHz reference from which to tap but it doesn't work too well. There's more to learn here for sure. I figured there would be a place in the circuit I could tap to bring out the IF to the analyzer. Would I not be correct in assuming that the spectrum analyzer can read the same signal(s) fed to the rest of the K2's receiver? |
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Steve,
One cannot usually use a spectrum analyzer "in situ" like you would an oscilloscope - the spectrum analyzer has a 50 ohm input and will load the "circuit under test" significantly. That is why you need the buffer amplifier. 73, Don W3FPR On 1/2/2012 5:35 PM, Steve KC8QVO wrote: > Just playing around here - I dug out my manual and found the RX Mixer. > I tapped the Post-Mixer Amp side of C159 and the ground side of R80 > with a length of RG-174. Then I ran that back to the receive antenna > connector on the 160 module (desoldered the wires to the 160 module). > I figured this would give me a 4.915mHz reference from which to tap > but it doesn't work too well. There's more to learn here for sure. I > figured there would be a place in the circuit I could tap to bring out > the IF to the analyzer. Would I not be correct in assuming that the > spectrum analyzer can read the same signal(s) fed to the rest of the > K2's receiver? 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 |
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In reply to this post by Jim Brown-10
I've been to Visalia many times because I used to live in Phoenix, and many
members of the Central Arizona DX Association went, making it more enjoyable. I've been twice, I think, since I moved to IL in 2006. The attendance is usually between 550 and 625. What's nice is that it all takes place at the convention hotel, the Holiday Inn. The Comfort Inn is just across the parking lot, as the Holiday Inn fills up quickly, so you could still try them for rooms, and they're probably cheaper. Both are much cheaper than the contest/DX hotel in Dayton, the Crowne Plaza. The website is http://dxconvention.org/ . You can also fly into Fresno, which is 45 minutes north of Visalia. I believe that there's a flight into Visalia (the airport is walking distance to the convention) from Ontario, but that what I remember from last year. I've flown into Fresno and Burbank, which is on the north side of Los Angeles. Several of us toured the VOA station west of Hwy. 99 in Delano many years ago, but I doubt that you can today. A few years ago I wanted to see the VOA station at Greenville, NC, but the best I could get, which I appreciated, was having a ham/engineer come outside the gate and describe the facility. He said the VOA closed the stations after 9/11/01. It's very different than Dayton. There's no swap meet, and the vendors' area is in one small room. The convention is focused on DXing and contesting. The Friday night dinners are nice; twice I've been to the Topband dinner that WB6RSE organizes, and I really enjoyed it. I've always attended the Saturday banquet and have enjoyed it. I think the food is OK, but the food isn't why I attend. 73, Jim N7US -----Original Message----- On 1/2/2012 1:51 PM, Doug Turnbull wrote: > Dear OMs and Yls, > I am considering along with K1VGF skipping Dayton this year and > visiting the Visalia Hamfest but I am looking for some information. I > understand that Elecraft is sponsoring the Contest University which is an > event I would want to attend but I know little else about this event. So > perhaps some of the W6 land crew might fill me in: > > 1)The Contest University is on the Friday. Is it April 20? in the past, this event has been produced by our club, NCCC. See www.nccc.cc I've not seen plans for this year, but would expect the same. I think we call it Contest Academy, and there are usually two tracks, one for beginners and one more advanced. Some pretty good guys do the teaching in both tracks. > 2)Does the Hamfest run on both Saturday and Sunday Usually starts Friday afternoon, goes through Sunday noon. Search on Visalia DX Convention. > Crudely what is the size of this event in comparison to Dayton in > percent terms? Much smaller in attendance, programs, and exhibits. I'd guess 20% of Dayton. > I doubt there are any dinners but perhaps this is not the case and > if there are I would like to know about them. There are dinners for DX, Contesting, 160M, and IOTA, in addition to the Saturday night banquet.. And some of us go elsewhere for dinner in town and return in time for the banquet program -- it's a Holiday Inn in a not very big town, and the food is forgettable. > 3) Is Fresno the best airport to fly into? Are there any other nearby > airports to consider? We would be flying from Connecticut and I understand > that AA has flights from Hartford via Dallas. Visalia is roughly equidistant to San Francisco and Los Angeles, and most folks who fly in go through one of the airports around those cities. Oakland San Jose, and Sacramento are served by Southwest. Many who fly in also take time to see the sights in one of those cities, or along the way. There's a VOA antenna farm a few miles off the highway about 70 miles S of Visalia (no possibility of a tour, but it's easy to drive around it and look at it), and Visalia is pretty close to Yosemite and the Sierra. Although high elevation roads will still be closed by snow that time of year, there's still some pretty country to look at. And after a few meals in the hotel, you'll appreciate having the car to run into town for some very nice local restaurants. Some guys also get together around SF on Thursday to take in a ball game, then drive down to Visalia. I've driven some east coast visitors on tours to Alacatraz, and to a couple of vintage ship to shore transmitting sites along the coast. LAX has a bit of a jazz scene, though not nearly as much as in years past. Ditto for SF. You should also be able to hitch a ride from SF or LAX with one of the locals if you put out a timely request. From SF, the easy way to do this is to have an NCCC member post to our email reflector, and that's also a good way to find a room. You could also get some shack tours just by asking. . > 4) Does the Hamfest take place in the Holiday Inn as I believe the > Contest University does? Yes to both. > Does anyone have contact details for this Hotel and yes I can > search on line. It's fully booked the day after reservations are opened, and that was several months ago. There are more than enough good hotels nearby to hold attendees, including one just across the parking lot. The others you need to drive to. Rooms (or a bed in a 2-bed room) become available periodically as plans are changed by health, personal circumstance, and the XYL. I suggest that you contact DX or contesting friends if you want to stay in that hotel. Visalia is fun event, a lot smaller than Dayton. While it's officially a DX event (and sponsored by major clubs in SF and LAX), there are getting to be as many contesters involved in organizing it and attending it. And because it's a lot smaller than Dayton, it's easy to meet and hang out with those who do attend. 73, Jim K9YC ______________________________________________________________ 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 |
Re: Elecraft [OT] Visalia Hamfest
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In reply to this post by Jim Brown-10
Hi Jim,
DX University at Visalia this year is not the same as contest university. Its a similar program focused on DXing. It going to be a great program. Different sponsoring groups too. See http://www.dxuniversity.com/ 73, Eric www.elecraft.com _..._ On Jan 2, 2012, at 2:26 PM, Jim Brown <[hidden email]> wrote: > On 1/2/2012 1:51 PM, Doug Turnbull wrote: >> Dear OMs and Yls, >> I am considering along with K1VGF skipping Dayton this year and >> visiting the Visalia Hamfest but I am looking for some information. I >> understand that Elecraft is sponsoring the Contest University which is an >> event I would want to attend but I know little else about this event. So >> perhaps some of the W6 land crew might fill me in: >> >> 1)The Contest University is on the Friday. Is it April 20? > > in the past, this event has been produced by our club, NCCC. See > www.nccc.cc I've not seen plans for this year, but would expect the > same. I think we call it Contest Academy, and there are usually two > tracks, one for beginners and one more advanced. Some pretty good guys > do the teaching in both tracks. 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 |
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In reply to this post by Steve KC8QVO
Steve,
Installing a buffer amp such as the Clifton Labs Z10000 - K2 is the "cleanest" solution, but there is an alternative if you are just playing :-) Depending on the level of the natural noise floor of your Spectrum Analyzer and the interconnecting coax's capacitance, the IF signal at the emitter of the post-mixer amp Q22 might be strong enough to drive the Spectrum Analyzer. To avoid "upsetting" the post-mixer amp, you would have to connect your Analyzer's "hot" input to Q22's emitter via a R and C in series. I suggest that the value of the added capacitor be 10nF, and that the value of the added R be not less than 470 ohms. The function of the added capacitor is only to prevent any DC from the K2 reaching your Spectrum Analyzer. The shield of the coax at the post-mixer amp end should be grounded using the same pad (if possible) which is used to ground one side of C162. Have fun! 73, Geoff LX2AO ----- Original Message ----- From: "Steve KC8QVO" <[hidden email]> To: <[hidden email]> Sent: Monday, January 02, 2012 11:35 PM Subject: Re: [Elecraft] IF tap? > > Don Wilhelm-4 wrote >> >> Steve, >> >> This Elecraft email reflector stopped being the K2 reflector as soon as >> the K1 was available, and now there are questions about the K3, K2, K1, >> KX1, now the KX3, KPA500, KRC2, mini-modules, and any other product that >> Elecraft has produced or has announced for the future. >> >> Clifton Labs Z10000-K2 buffer can be installed in the K2 to provide >> IFoutput for your spectrum analyzer. Look at >> http://www.cliftonlaboratories.com/z10000_buffer_amp.htm. >> >> 73, >> Don W3FPR >> > > In regards to the reflector/forum - I posted on the website under the K2 > forum. There are also categories for the K1, KX1, K3, etc. I am not using > the e-mail system to get the post in to the reflector. I forgot that the > e-mail list does not "categorize" posts in the same regard that the > website > does for the reflector. > > Just playing around here - I dug out my manual and found the RX Mixer. I > tapped the Post-Mixer Amp side of C159 and the ground side of R80 with a > length of RG-174. Then I ran that back to the receive antenna connector on > the 160 module (desoldered the wires to the 160 module). I figured this > would give me a 4.915mHz reference from which to tap but it doesn't work > too > well. There's more to learn here for sure. > > I figured there would be a place in the circuit I could tap to bring out > the > IF to the analyzer. Would I not be correct in assuming that the spectrum > analyzer can read the same signal(s) fed to the rest of the K2's receiver? > > > -- > View this message in context: > http://elecraft.365791.n2.nabble.com/IF-tap-tp7144523p7145046.html > Sent from the Elecraft mailing list archive at Nabble.com. > ______________________________________________________________ > 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 ______________________________________________________________ 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 |
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