Re: [Elecraft] For Sale: KX3 + extras and AlexLoop / Buddipole Antennas

2014-05-12 Thread VaibhaV Sharma
The KX3 and Alex Loop have been sold. On May 12, 2014, at 1:52 PM, VaibhaV Sharma wrote: > The Alex Loop has been sold (and shipped). > > Just realized that I made a major typo in the ad. The KX3 and all extras are > $1350 shipped to CONUS - > > KX3 Serial# 4981 - Purchased August 2013 (less

[Elecraft] KX-3 4092

2014-05-12 Thread paulb
Hi Folks Owned a KX3 for a while but never used portable until recently. Antenna is a 40m dipole, coax fed. Nothing exotic. For some reason the KX3 tuner has a problem getting a good match. It settles on something like 1.8/1 which is not big deal except other transcievers show near perfect match

Re: [Elecraft] Dayton hotels/motels

2014-05-12 Thread Jim Brown
On 5/12/2014 10:57 AM, Slava Baytalskiy wrote: Any other hotel suggestions are welcome as I'm totally unfamiliar with that area. Glad you found your rooms. Some of my Chicago buddies stay in Miamisburg, about 10 miies S of Dayton, where I worked for Drake in the 60's. K3LR, who runs Contes

[Elecraft] Power problem

2014-05-12 Thread Bill Turner
My K3 has developed a power problem. I first noticed it on 20 meters. It would not reach 100 watts, but was stuck around 60 watts even using a dummy load, and the power would "pump" up and down about ten watts. I then went through the power calibration procedure and it failed at 5 watts with

Re: [Elecraft] [K3] Roofing filters are misunderstood

2014-05-12 Thread Bill Turner
ORIGINAL MESSAGE: (may be snipped) On 5/12/2014 4:15 PM, David Gilbert wrote: So would you prefer to call it a "window?" REPLY: I like that! Much more accurate. A roof keeps everything out while a window lets only certain things such as the desired signal in. Much more self-expla

Re: [Elecraft] [K2] K2 Always full power out

2014-05-12 Thread Don Wilhelm
Dave, The KAT100 power output is not sent back to the K2 unless the KAT100 is operated without the KPA100 in-line. With the KPA100 present, the KAT100 Vf and Vr values are only used to compute the SWR due to the result of the tuning algorithm. If the KPA100 is taken out of the equation (by

Re: [Elecraft] K3 low Power

2014-05-12 Thread Dick
Martin, I had the same problem on this end, and I can guarantee your problem is on the LPF board (bad MOS FET). If you key up with no power out, and any of the three on the LPR board are cool, they are bad. One is the driver, and the two are the finals to drive the 100W amp. Hopefully, the two

Re: [Elecraft] [K2] K2 Always full power out

2014-05-12 Thread Dave Mueller
Thanks, Don. I've never had a problem with static before, but always felt I was pushing my luck. I also use the KAT100 external tuner, and leave both antennas connected all the time. Does the Vf and Vr inside the KAT100 get sent back to the K2, and what do you think the chances are of the 1n57

Re: [Elecraft] FW: [cwops] merger of Alpha and Ten Tec

2014-05-12 Thread Ignacy
No problems with the Corvette. The Stingray has impressive reviews. Many Corvette owners seem to drive 5 miles below the limit and accelerate from 0 to 60 in 30 seconds. It seems to be a status symbol. Also if it breaks down often (reliability much worse than average in CR), it is still a great

Re: [Elecraft] [K2] K2 Always full power out

2014-05-12 Thread Don Wilhelm
Dave, The KPA100 diodes D16 and D17 in the wattmeter have likely been damaged. Those diodes are right on the output of the KPA100 and are intended to measure power output - which is not happening with your KPA100 (because they are damaged). There are other components in the KPA100 that can ca

[Elecraft] [K2] K2 Always full power out

2014-05-12 Thread Dave Mueller
My K2/100 has been working fine for a few years. Last weekend, I was greeted by a HI CUR alarm when I first keyed down. After some troubleshooting, here's what I've found: If I remove the KPA100, the power control changes output power as expected, and the power bar graph works to full scale. Wi

[Elecraft] OT: Dayton parking

2014-05-12 Thread Ken G Kopp
A common ploy is to rent a flea market space and park in it. Even gets you in the gate early. Discovered this when invited to ride from motel to arena with Bernard Getz (SP) and his bodyguard. (;-) 73 Ken Kopp - K0PP On May 12, 2014 6:19 PM, "Don Wilhelm" wrote: > Phil, > > My choice for par

Re: [Elecraft] Dayton hotels/motels

2014-05-12 Thread Michael Walker
Wow... $10/day is high? Come to Toronto. You can easily pay that per hour in the core of the city. Mike va3mw On Mon, May 12, 2014 at 8:19 PM, Don Wilhelm wrote: > Phil, > > My choice for parking at Dayton is to park at Salem Mall (free) and take > the bus to Hara arena - bus tickets for th

Re: [Elecraft] Dayton hotels/motels

2014-05-12 Thread Don Wilhelm
Phil, My choice for parking at Dayton is to park at Salem Mall (free) and take the bus to Hara arena - bus tickets for the entire event are $8 per person and can be purchased at the parking lot. There is parking near Hara arena for those who would not mind paying a higher price. I recall th

Re: [Elecraft] Dayton hotels/motels

2014-05-12 Thread Phil Kane
On 5/12/2014 4:39 PM, K8JHR wrote: > You may have a 15-20 minute drive to the Arena, but that does not seem > too far to me, most guys commute longer than that to work in many > cases. I never make a reservation, just go. It is another story if > you want to stay within a block of Hara Arena.

Re: [Elecraft] [K3] Roofing

2014-05-12 Thread gdaught6
OK, apologies in advance for killing this thread, but I can't resist! > There are several fairly intuitive possibilities, none of which are > worth getting confused about in the first place. A fellow and his dog walk into a bar. The fellow asks the bartender "If my talking dog answers a quest

Re: [Elecraft] K3 low Power

2014-05-12 Thread Martin
Don, no i didn't install the jumper block. I'm not even sure if i still have it. I transmitted only for very short periods touching all 3 transistors. I felt only one of them getting warm. So i need to find the jumper block first before i proceed the testing. Thank you for the reply. Am 13

[Elecraft] Roofing filters

2014-05-12 Thread Wayne Burdick
David Gilbert wrote: > Actually, a roofing filter does exactly what it says. It protects against > ... i.e., does not allow to pass ... out-of-passband signals from affecting > the ADC or hardware AGC. It's a "roof" against unwanted energy and a window > for desired signals. So would you

Re: [Elecraft] Dayton hotels/motels

2014-05-12 Thread K8JHR
It depends on how far out you are willing to stay. Go to Centerville, Kettering, Beavercreek, or Troy, and you can find rooms with no reservation. You may have a 15-20 minute drive to the Arena, but that does not seem too far to me, most guys commute longer than that to work in many cases.

Re: [Elecraft] K3 low Power

2014-05-12 Thread Don Wilhelm
Martin, I have to ask since you did not mention it -- did you install the PA jumper block after removing the KPA3? If not, you need to do that. As for operating the transistors in the Low Power PA getting warm - one should *never* operate the K3 in transmit with that bottom cover removed.

Re: [Elecraft] [K3] Roofing filters are misunderstood

2014-05-12 Thread David Gilbert
Actually, a roofing filter does exactly what it says. It protects against ... i.e., does not allow to pass ... out-of-passband signals from affecting the ADC or hardware AGC. It's a "roof" against unwanted energy and a window for desired signals. So would you prefer to call it a "window?

Re: [Elecraft] FW: [cwops] merger of Alpha and Ten Tec

2014-05-12 Thread Wes (N7WS)
Disclaimer: The first and last Corvette I owned was a 1956. (Don't I wish I had that back?) That said, what's your issue with Corvette owners? The new Sting Ray will blow the doors off exotics costing many times what it costs and get better fuel mileage than some "economy" cars while doing i

Re: [Elecraft] [K3] Roofing filters are misunderstood

2014-05-12 Thread Nr4c
Think of your roof blocking the rain so the ceiling doesn't have to work so hard. It's not used for band-pass, it's to let the DSP work less. Sent from my iPhone ...nr4c. bill > On May 12, 2014, at 3:01 PM, Bill Turner wrote: > > ORIGINAL MESSAGE: (may be snipped) > >> On 5/12/20

Re: [Elecraft] [K3] Roofing filters are misunderstood

2014-05-12 Thread Dennis Griffin via Elecraft
Wasn't the chicken little sky is falling thing popular back when "roofing filter" originated? We may be luckier than we know that it became known as a roofing filter. 73 de Dennis KD7CAC Scottsdale, AZ On May 12, 2014, at 3:04 PM, David Gilbert wrote: > > Roof->upper ... higher ... o

Re: [Elecraft] [K3] Roofing filters are misunderstood

2014-05-12 Thread Bill Turner
ORIGINAL MESSAGE: (may be snipped) On 5/12/2014 12:38 PM, Josh Fiden wrote: "The term “roofing” stems from the fact that it protects the rest of the radio following it from out of the passband signals." REPLY: A roof keeps what falls on it (rain, snow) out. It doesn't pass it throug

Re: [Elecraft] [K3] Roofing filters are misunderstood

2014-05-12 Thread David Gilbert
Roof->upper ... higher ... overhead ... protective ... There are several fairly intuitive possibilities, none of which are worth getting confused about in the first place. Dave AB7E On 5/12/2014 12:01 PM, Bill Turner wrote: I still don't get it. What does the word "roof" have

[Elecraft] K3 low Power

2014-05-12 Thread Martin
Elecrafters, a little while ago i had an issue with loss of rf-power. I thought i had found the problem. I hadn't. Symptom now: Power out only about 3 Watts. I removed the 100W-PA, changed the Menue to 'not inst'. With TUN PWR set to 12W i can achieve about 2.5W . Only 1 of the 3 Transistors o

Re: [Elecraft] Roofing Filters - An Empirical Test

2014-05-12 Thread Vic Rosenthal K2VCO
My K3 was originally set up this way, 400 Hz in the main and 2.8 kHz in the sub. When working DX pileups with the main on the DX and the sub on the pileup, I definitely noticed the 'pumping' effect on the sub only. It was sometimes annoying when the DX was working a weak caller and the usual

Re: [Elecraft] [K3] Roofing filters are misunderstood

2014-05-12 Thread Jsodus
There you go! Well said. 73 Jerry KM3K KX3#6088 Sent from my NOOK Don Wilhelm wrote: Bill, Like a roof protects the contents of a building, a roofing filter protects the electronics that follow it from overload. 73, Don W3FPR On 5/12/2014 3:01 PM, Bill Turner wrote: > > > I still don't get

Re: [Elecraft] KPA500 ser. no.1066 factory built, Loose diode 1N5408

2014-05-12 Thread Vic Rosenthal K2VCO
The diode is probably not defective (although the soldering is). Unless your DVM measures the forward voltage drop of the diode, resistance readings in the forward direction are probably unreliable. I would just resolder it and see if it works! On 5/12/2014 10:58 AM, Poul Erik Karlshøj (PKA) wr

Re: [Elecraft] [K3] Roofing filters are misunderstood

2014-05-12 Thread Don Wilhelm
Bill, Like a roof protects the contents of a building, a roofing filter protects the electronics that follow it from overload. 73, Don W3FPR On 5/12/2014 3:01 PM, Bill Turner wrote: I still don't get it. What does the word "roof" have to do with bandpass? That's where the confusion comes

Re: [Elecraft] FW: [cwops] merger of Alpha and Ten Tec

2014-05-12 Thread Ignacy
" SPE has succeeded in designing the 2K-FA solid-state amplifier that has nearly a 5 out of 5 eham rating" W8JI found that 5 out of 5 on eham does not mean much. SPE 2k owners are like in a Corvette club: they bought it mostly because they have money and they want the most expensive stuff. Mos

Re: [Elecraft] [K3] Roofing filters are misunderstood

2014-05-12 Thread Peter Torry
Bill, Originally the superhet receivers converted from the signal frequency to a lower fixed intermediate frequency in order to obtain sufficient selectivity. IFs went as low as 85kHz until crystal filters became more widespread. As designs changed ( changed not improved) it became usual to

Re: [Elecraft] For Sale: KX3 + extras and AlexLoop / Buddipole Antennas

2014-05-12 Thread VaibhaV Sharma
The Alex Loop has been sold (and shipped). Just realized that I made a major typo in the ad. The KX3 and all extras are $1350 shipped to CONUS - KX3 Serial# 4981 - Purchased August 2013 (less than a year old). No scratches or dents. No functional issues. Includes - KXAT3 - Internal antenna tuner

Re: [Elecraft] FW: [cwops] merger of Alpha and Ten Tec

2014-05-12 Thread Gerald Manthey
If elecraft made a full legal power amp like the Kpa500. I would be all over it. Right now I use a Alpha 76PA. When I have to, only voice. Every thing else is around 10 to 25 watts. Gerald On May 12, 2014 2:27 PM, "Scott Manthe" wrote: > $6-$7K is a boatload of money, but I guess if you're a seri

Re: [Elecraft] Roofing Filters - An Empirical Test

2014-05-12 Thread Wayne Burdick
I should have pointed out that this effect is most noticeable with CW or narrow data modes, where there's a large difference in bandwidth between "wide" and "narrow" filters. In SSB mode, a somewhat narrower filter (say 1.8 kHz) will provide additional margin on an active band with strong signal

Re: [Elecraft] Roofing Filters - An Empirical Test

2014-05-12 Thread Wayne Burdick
It's quite simple. If you have a very strong interfering signal that falls inside the SSB filter passband (2.7 or 2.8 kHz), but outside an installed narrow filter, the hardware AGC will not get "pumped". Lacking such a filter, a strong enough signal (typically S9+20 or higher) *will* activate h

Re: [Elecraft] [K3] Roofing filters are misunderstood

2014-05-12 Thread Fred Jensen
I have imperfect recollections that the source of the term "roofing filter" came from the idea that the filter put a "roof" over your receiver to prevent very strong, off-frequency signals from getting in. You'll need to crank up your imagination here ... similar to the roof of your house keep

Re: [Elecraft] Roofing Filters - An Empirical Test

2014-05-12 Thread Scott Manthe
The January 2009 QST has a table list the IMD numbers with various filters. Quite informative. There's is no easy way to cut/paste the data into an email, unfortunately. 73, Scott, N9AA On 5/12/14 3:54 PM, Dauer, Edward wrote: I would be interested in knowing if anyone has done an empirical

Re: [Elecraft] K3 - Accessory Jack - How Many Wye Cables?

2014-05-12 Thread Oliver Dröse
I have up to 5 devices fed in parallel with the same BCD sigs from my K3 (my KPA500, a 5B4AGN TXBPF, my 10x2 homebrew antenna switch, a homebrew sequencer that also splits PTT between HF & VHF based on BCD and sometimes an additional homebrew banddecoder, too). So no problem at all to paralle

[Elecraft] K3: PSK31 will not allow Split operation.

2014-05-12 Thread Bob Myers
K3 PSK31 will not allow Split operation. New kit K3 S/N 8156 basic setup, one 250 Hz filter option. No other options. In PSK-D mode, the K3 will not allow receiving on VFO A and transmitting on VFO B. The message SPL N/A comes up when holding the Split button. In FSK-D RTTY Split works fine. Ot

[Elecraft] Roofing Filters - An Empirical Test

2014-05-12 Thread Dauer, Edward
I would be interested in knowing if anyone has done an empirical test and observed the difference directly. Specifically, since the sub receiver is identical to the main receiver in every way, if someone has a K3 with, for example, a 400 Hz filter in the main but only a wider set in the sub, and t

Re: [Elecraft] [K3] Roofing filters are misunderstood

2014-05-12 Thread Josh Fiden
From an older Inrad writeup (and consistent with Wayne's): "The term “roofing” stems from the fact that it protects the rest of the radio following it from out of the passband signals." http://www.qth.com/inrad/roofing-filters.pdf I like the term "preselector" from my 75S-1, but that doesn't

Re: [Elecraft] FW: [cwops] merger of Alpha and Ten Tec

2014-05-12 Thread Scott Manthe
$6-$7K is a boatload of money, but I guess if you're a serious amateur, it's worth it. Personally, it's pretty hard for me to justify $7K on an amp. I might be able to swing $3.5K on a KPA1000, though... 73, Scott, N9AA On 5/12/14 3:17 PM, Richard Solomon wrote: Wait until the SPE 1.3K-FA co

Re: [Elecraft] FW: [cwops] merger of Alpha and Ten Tec

2014-05-12 Thread Milverton M. Swire via Elecraft
Steve, you sure have been doing a lot of " Thinking" You better be careful now!   :-) 73 Milverton. On Monday, May 12, 2014 2:16 PM, Don Wilhelm wrote: Steve, > >You are partly correct. >Elecraft did prototype both an 800 watt amp and a 1500 watt amp long ago. >They were both all s

Re: [Elecraft] FW: [cwops] merger of Alpha and Ten Tec

2014-05-12 Thread Richard Solomon
Wait until the SPE 1.3K-FA comes out, 16.5 lb's, built-in Antenna Tuner. If the price is right and it should be between the 1K and 2K, they should sell a boatload of them. 73, Dick, W1KSZ On 5/12/2014 11:25 AM, Stephen Bloom wrote: Hope it isn't bad etiquette to send this to two email lists

Re: [Elecraft] [K3] Roofing filters are misunderstood

2014-05-12 Thread Phil Wheeler
At least I do, Arie. Maybe those with fewer "local" signals do not. Dunno. Phil w7ox On 5/12/14, 9:23 AM, Arie Kleingeld PA3A wrote: Well, You defenitely need those filters in the K3. When signals are strong and the band is busy, signals coming through the roofing filter (line S9+20dB) is

Re: [Elecraft] FW: [cwops] merger of Alpha and Ten Tec

2014-05-12 Thread Don Wilhelm
Steve, You are partly correct. Elecraft did prototype both an 800 watt amp and a 1500 watt amp long ago. They were both all solid state - no tubes involved. The 1500 watt version used two of the power bricks of the 800 watt unit. 73, Don W3FPR On 5/12/2014 2:25 PM, Stephen Bloom wrote: Hope it

Re: [Elecraft] Dayton hotels/motels

2014-05-12 Thread Jim Stahl via Elecraft
Not necessarily. Several weeks ago a friend "found" a $100/night room at the Crowne Plaza via one of these online sites. Until he tried to book it, and it was not available. Good luck, Jim K8MR In a message dated 5/12/2014 2:28:35 P.M. Eastern Daylight Time, pin...@erols.com wr

Re: [Elecraft] [K3] Roofing filters are misunderstood

2014-05-12 Thread Bill Turner
ORIGINAL MESSAGE: (may be snipped) On 5/12/2014 9:33 AM, Jerome Sodus wrote: Hello Bill, The term "roofing-filter" made sense back in the 1980's when I designed roofing-filters at 70 MHz. Bandwidths would be in tens of KHz. The purpose then was to protect downstream circuitry by rejecti

Re: [Elecraft] KPA500 ser. no.1066 factory built, Loose diode 1N5408

2014-05-12 Thread Nr4c
Full schematics on website prob with manuals. Sent from my iPhone ...nr4c. bill > On May 12, 2014, at 1:58 PM, Poul Erik Karlshøj (PKA) > wrote: > > We have found a loose (de-soldered) diode 1N5408 in this factory assembled > KPA500. > The diode shows >10Mohm in one direction and 2-3 Mohm (

[Elecraft] FW: [cwops] merger of Alpha and Ten Tec

2014-05-12 Thread Stephen Bloom
Hope it isn't bad etiquette to send this to two email lists I've thought that ExpertAmps and Elecraft should consider some type of working agreement. I have a K3 and 2K-FA that play very well together .very nice for QSK, though I did buy the amp with the after market vacuum relay), pretty sim

Re: [Elecraft] Dayton hotels/motels

2014-05-12 Thread Scott Manthe
I must be doing something wrong, because my search didn't show there being plenty of rooms in the $50-$80 range: http://www.hotels.com/search/search.html?cd=05-15-14&children[0]=0&dd=05-18-14&numberOfRooms=1&pageName=HomePage&pn=1&rl=CITY%3A1482922%3APROVIDED%3APROVIDED&roomInfoList[0].numberOfA

Re: [Elecraft] Dayton hotels/motels

2014-05-12 Thread Slava Baytalskiy
Ok. Found a room. 3 blocks from the Crowne Plaza Hotel, where I'll be attending the Contest University thing. Worked out ok. Slava Baytalskiy sla...@nullserv.com W2RMS On May 12, 2014, at 2:13 PM, "Charlie T, K3ICH" wrote: > Try any of the online hotel bookers, Expedia, Hotels.com, Priceline

Re: [Elecraft] Dayton hotels/motels

2014-05-12 Thread Charlie T, K3ICH
Try any of the online hotel bookers, Expedia, Hotels.com, Priceline etc. There's plenty of rooms in Dayton in the $50 to $80 range. It's not like it was 30 years ago when they'd sell out in February. 73, Charlie k3ICH - Original Message - From: "Slava Baytalskiy" To: Sent: Monday

Re: [Elecraft] [K3] Roofing filters are misunderstood

2014-05-12 Thread Hank P
I have two big time dxers/contesters near me - on 160 , one is -8 to -9 dBm and the other is -10 to -11dBm . Folks , thats in the 50 to 100 mv area at the poor K3 .(S9+60 to 70 area) Just for fun of it , I can easily see both on my scope hung on my antenna. With the 250 hz 8 pole - I could

[Elecraft] KPA500 ser. no.1066 factory built, Loose diode 1N5408

2014-05-12 Thread PKA
We have found a loose (de-soldered) diode 1N5408 in this factory assembled KPA500. The diode shows >10Mohm in one direction and 2-3 Mohm (varying) in the other direction (DVM) Where is this diode located (if there are several, then where?), what is its function and is it replaceable by a skilled

[Elecraft] Dayton hotels/motels

2014-05-12 Thread Slava Baytalskiy
Hi everyone! Our camping idea fell apart at the last minute and we now have 3 adults looking for some sort of hotel/motel accommodations for the Dayton Hamvention. Just wondering if anyone has any cancellations or something. Please contact me off list. Any other hotel suggestions are welcome a

Re: [Elecraft] Parts in North Dakota

2014-05-12 Thread Kenneth A Christiansen
Gregory You are right Thief River Falls, MN is only 130 miles from me but minimum orders and shipping charges still apply and are high. Sometimes like my last project they will sell 10,000 for a cheap price but won't sell one at any price. As I said home brewing is expensive and frustrating.

[Elecraft] Parts in North Dakota

2014-05-12 Thread Gregory Beat
I hear this complaint often, from new residents of the north coast, but I have to laugh. Digi-Key in Thief River Falls, MN is not that far from Fargo. In fact, due to UPS and USPS routing changes in past few years --- ALL of those electronic parts shipments are routed through Fargo, ND !! Somet

Re: [Elecraft] K3 - Accessory Jack - How Many Wye Cables?

2014-05-12 Thread Don Wilhelm
Rich, Power up your planned band decoder standalone and measure the voltage at its band data inputs. If you see zero volts (or very close to that), then it will be OK as long as those inputs will not source too much current when the K3 band data lines are low. OTOH, if you measure a voltage

[Elecraft] Re; K2 Knob/shaft diameter

2014-05-12 Thread Mike
Iread somewhere on the list that the newer encoders for the K2 had larger diameter shafts then the older models. What is the shaft diameter of the newer encoders.  Want to replace the main knob with one of the newer solid steel/brass knobs. Mike KD8DVV H. Michael Pierce __

Re: [Elecraft] [K3] Roofing filters are misunderstood

2014-05-12 Thread Greg
No problem Jerry. Didn't seem to make much sense hashing out something that was already clarified by the designers. :) 73 Greg On Mon, May 12, 2014 at 9:59 AM, Jerome Sodus wrote: > Thank-you, Greg. > > Excellent. > > Jerry KM3K > > > -- > > *From:* Greg [mailt

Re: [Elecraft] [K3] Roofing filters are misunderstood

2014-05-12 Thread Jerome Sodus
Thank-you, Greg. Excellent. Jerry KM3K _ From: Greg [mailto:a...@cablespeed.com] Sent: Monday, May 12, 2014 12:52 PM To: Jack Brindle Cc: Jerome Sodus; elecraft@mailman.qth.net Subject: Re: [Elecraft] [K3] Roofing filters are misunderstood http://www.elecraft.com/K3/Roofing_Filt

Re: [Elecraft] [K3] Roofing filters are misunderstood

2014-05-12 Thread Don Wilhelm
Jerry, Yes, the term has become corrupted and misunderstood over the years. That *is* exactly what the K3 filters do (protect the downstream circuits from strong out of passband signals), but is done using a much more narrow bandwidth at the 1st IF. If the operator never encounters signal le

Re: [Elecraft] [K3] Roofing filters are misunderstood

2014-05-12 Thread Greg
http://www.elecraft.com/K3/Roofing_Filters.htm On Mon, May 12, 2014 at 9:45 AM, Jack Brindle wrote: > Jerry, > > Why do you say it has been corrupted? This is exactly the purpose for the > Roofing Filters in the K3. > > Jack B, W6FB > > > On May 12, 2014, at 9:33 AM, Jerome Sodus wrote: > >

Re: [Elecraft] [K3] Roofing filters are misunderstood

2014-05-12 Thread Jack Brindle
Jerry, Why do you say it has been corrupted? This is exactly the purpose for the Roofing Filters in the K3. Jack B, W6FB On May 12, 2014, at 9:33 AM, Jerome Sodus wrote: > Hello Bill, > The term "roofing-filter" made sense back in the 1980's when I designed > roofing-filters at 70 MHz. > Ban

Re: [Elecraft] K3 - Accessory Jack - How Many Wye Cables?

2014-05-12 Thread Richard Thorne
Thanks for all the replies, I plan on connecting a band decoder to the 2nd wye and it only receives/monitors the band data, it doesn't send anything back to the rig. So it looks like a 2nd wye should do the trick. Thanks Rich - N5ZC On 5/12/2014 6:48 AM, Richard Thorne wrote: Currently I h

Re: [Elecraft] [K3] Roofing filters are misunderstood

2014-05-12 Thread Jerome Sodus
Hello Bill, The term "roofing-filter" made sense back in the 1980's when I designed roofing-filters at 70 MHz. Bandwidths would be in tens of KHz. The purpose then was to protect downstream circuitry by rejecting very strong out-of-band signals that could cause overload; selectivity was not the pur

Re: [Elecraft] [K3] Roofing filters are misunderstood

2014-05-12 Thread Arie Kleingeld PA3A
Well, You defenitely need those filters in the K3. When signals are strong and the band is busy, signals coming through the roofing filter (line S9+20dB) is said to pump the hardware AGC, even if you have the DSP filtering set to a small BW. Anyway, you can certainly hear that. Try it on CW,

Re: [Elecraft] TIP, RING,RING, Sleeve plug

2014-05-12 Thread Nr4c
I bought an adapter from Amazon for my HP laptop. I'm just lazy. Sent from my iPhone ...nr4c. bill > On May 12, 2014, at 11:15 AM, "w...@i29.net" wrote: > > Hi to the group > > MY NEW 17 INCH HP LAPTOP AUDIO JACK > > TIP IS RIGHT CHANNEL SPKR > RING 1 IS LEFT CHANNEL SPKR > RING 2 IS GROUND

[Elecraft] HP Laptop Audio Jack layout

2014-05-12 Thread Kenneth A Christiansen
Hi to the group MY NEW 17 INCH HP LAPTOP AUDIO JACK TIP IS RIGHT CHANNEL SPKR RING 1 IS LEFT CHANNEL SPKR RING 2 IS GROUND SLEVE IS HOT MIC This has been a long week. Last week my 17 inch Toshiba lap top started random but serious failures. I reloaded it several times and even bought a new copy

Re: [Elecraft] K3 - Accessory Jack - How Many Wye Cables?

2014-05-12 Thread Jim Miller
I made a patch panel using adapters mounted on DIN rails from Winford Engineering. 73 Jim ab3cv On May 12, 2014, at 9:49 AM, W0MU Mike Fatchett wrote: This is an issue. If you have a band decoder, want to run the preamp, the amp, tuner, and say a Microham device. I have used multiple Y ad

Re: [Elecraft] TIP, RING,RING, Sleeve plug

2014-05-12 Thread w...@i29.net
Hi to the group MY NEW 17 INCH HP LAPTOP AUDIO JACK TIP IS RIGHT CHANNEL SPKR RING 1 IS LEFT CHANNEL SPKR RING 2 IS GROUND SLEVE IS HOT MIC This has been a long week. Last week my 17 inch Toshiba lap top started random but serious failures. I reloaded it several times and even bought a new copy

Re: [Elecraft] K3 - Accessory Jack - How Many Wye Cables?

2014-05-12 Thread Dick Dievendorff
I use two Ys. One side of the first Y goes from a K3 to a KAT500 and then the KAT500 goes to a KPA500. The other side of the K3 Y goes to a second Y that connects to a Top Ten Devices Band Aide and a US Interface Navigator. Occasionally with the K3 turned off my Top Ten Devices Band Aide rel

Re: [Elecraft] Cool your KX3

2014-05-12 Thread fredem
For those interested in the story of the Cooler KX, I put up a small webpage at: www.ve7fmn.ca There is contact and order information on the page. Please send your comments to me directly to save bandwidth. Reviews of the Cooler can be found here: http://www.eham.net/reviews/detail/11702?page=2 Ch

Re: [Elecraft] K3 and JT65 (JT9) power instability problem

2014-05-12 Thread Sam Morgan
the K3 is not like other rigs you must first set the K3's ALC to show 4 bars with the 5th bar flickering then set the pwr out to the power level you want to use On 5/12/2014 8:59 AM, OH9VD wrote: I have set the K3/100 output power to 10W. When I start to send in JT65-mode the power rises slowl

[Elecraft] K3 and JT65 (JT9) power instability problem

2014-05-12 Thread OH9VD
I have set the K3/100 output power to 10W. When I start to send in JT65-mode the power rises slowly from 2W to 10W after few send/receive periods. After reaching the 10W the power stabilizes. Everything seems to work properly except the power instability, anyway I can have qso's with JT65 and J

Re: [Elecraft] K3 - Accessory Jack - How Many Wye Cables?

2014-05-12 Thread W0MU Mike Fatchett
This is an issue. If you have a band decoder, want to run the preamp, the amp, tuner, and say a Microham device. I have used multiple Y adapters successfully. Mike W0MU On 5/12/2014 6:04 AM, Don Wilhelm wrote: Rich, I assume you also have a KPA500 in the mix. The problem is not with adding

[Elecraft] SSB/CW/PSK/RTTY Keying with N1MM

2014-05-12 Thread Doug Ellmore
I while back I figured out how to do macros in N1MM to key the K3 and KX3 internal keyer and DVR. I posted my summary macros here: http://ellmore.net/na1dx/?p=469 The only issue is cancelling the execution of a macro. You can not use the normal "ESC" key to cancel a TX like you might do with N1M

[Elecraft] PAE KX3 Heatsink

2014-05-12 Thread Howard Hoyt
Hi all, Some of you have ordered the PAE-Kx31 Heatsink, and the email addresses you gave are bouncing, so if you have not received an email from me in the last few days, please contact me off-list. All back-orders for the heatsink have now been filled and the heatsink is in stock. See you i

Re: [Elecraft] [K3] Roofing filters are misunderstood

2014-05-12 Thread Charlie T, K3ICH
Good point. A true roofing filter would be in the antenna line. Repeaters have "roofing" filters, typically in the form of an extremely high Q resonant cavity. Chas - Original Message - From: "David Cole" To: Sent: Monday, May 12, 2014 8:43 AM Subject: Re: [Elecraft] [K3] Roofing

Re: [Elecraft] [K3] Roofing filters are misunderstood

2014-05-12 Thread David Cole
On Sun, 2014-05-11 at 22:06 -0700, Bill Turner wrote: "I have always thought that "roofing" was a marketing ploy to imbue it with some kind of magical powers." Bill, "These aren't the filters you are looking for... Move along..." Sorry, I just had too inject that at this point in the discussio

Re: [Elecraft] K3 - Accessory Jack - How Many Wye Cables?

2014-05-12 Thread Don Wilhelm
Rich, I assume you also have a KPA500 in the mix. The problem is not with adding another "Y" cable, but the possibility that the other device will interfere with the band signalling to the KPA500. If that other device has pullup resistors, that can create problems, especially if the pullups are

Re: [Elecraft] K3 - Accessory Jack - How Many Wye Cables?

2014-05-12 Thread Peter Chamalian W1RM
Yes so long as you aren't trying to send the same data to two devices. If you are trying to send band data to two devices, I'm not sure if that would work or not. Currently I have one which provides my amp with band data and the other side to my 6m preamp. I wanted to add RTTY from my MicroKeyer

[Elecraft] K3 - Accessory Jack - How Many Wye Cables?

2014-05-12 Thread Richard Thorne
Currently I have a wye cable attached to the accessory jack on the back of my K3 which in turn is connected to a microham device and the KAT-500 tuner. I have a need to supply band data to another device, can I connect another wye to the current wye so I can connect 3 devices to the accessory

[Elecraft] For Sale: K2

2014-05-12 Thread Phillip Zminda
For sale: Elecraft K2- S/N 05719. 80 through 10 meter Transceiver. Completed in 2006. Used mostly for Field Day and vacations. Includes KSB2 SSB board, KNB2 noise blanker, KAT2 internal auto-tuner, KIO2 RS-232 adapter and cable, Icom hand mike, DC cord with APP connectors, assembly/operating man

Re: [Elecraft] [KX3] Case Doesn't Close Quite "Right"

2014-05-12 Thread Joel Black
I am sorry. In the following post, I should have stated that once I took out the Eneloops, the rocking is still there, but it has been greatly reduced. 73, Joel - W4JBB On 5/12/14, 5:20 AM, Joel Black wrote: I appreciate the replies. To answer a few questions: 1. Yes, I built it from a kit,

Re: [Elecraft] [KX3] Case Doesn't Close Quite "Right"

2014-05-12 Thread Joel Black
I appreciate the replies. To answer a few questions: 1. Yes, I built it from a kit, it is S/N 14xx. I measured each screw before installation, but it looks like I must have missed something. 2. On the left side (as you're looking at the display), the panel does not seat flush with the top pa