Re: [Elecraft] KPA500 - Rx Attenuation

2013-02-10 Thread Dick Dievendorff
Make sure that the amp's PTT line is not pulled low when you expect to be receiving. 73 de Dick, K6KR -Original Message- From: elecraft-boun...@mailman.qth.net [mailto:elecraft-boun...@mailman.qth.net] On Behalf Of AG0N-3055 Sent: Saturday, February 09, 2013 8:24 PM To: John K3TN Cc:

Re: [Elecraft] [OT] I made a knob, a PigKnob.

2013-02-10 Thread Pete Smith N4ZR
Particularly if there could be a wrieless version, maybe using someof Roving Networks' bluetooth technology. Or is this in the works? There's a hint of that on Pignology's web site. 73, Pete N4ZR Check out the Reverse Beacon Network at http://reversebeacon.net, blog at

Re: [Elecraft] [OT] I made a knob, a PigKnob.

2013-02-10 Thread Greg
Something like this would probably work. http://gridconnect.com/industrial-wireless/bluetooth-serial/bluetooth-to-serial.html Greg On Feb 10, 2013 7:52 AM, Pete Smith N4ZR n...@contesting.com wrote: Particularly if there could be a wrieless version, maybe using someof Roving Networks'

[Elecraft] Elecraft USB interface.

2013-02-10 Thread Gil G.
Hello, I was going to buy a Signalink USB for my KX3, but after reading about the noise problems I am not so sure. I wish Elecraft would build a USB interface… It would undoubtedly be a hot seller and I am sure perform flawlessly… Anyone in support…? Gil. -- PGP Key:

Re: [Elecraft] Elecraft USB interface.

2013-02-10 Thread W4GRJ
Gil, What kind of noise problem are you referring to? I use a SL USB with my K3 with no issue. Jack W4GRJ On Feb 10, 2013, at 11:43, Gil G. g...@keskydee.com wrote: Hello, I was going to buy a Signalink USB for my KX3, but after reading about the noise problems I am not so sure. I wish

Re: [Elecraft] Elecraft USB interface.

2013-02-10 Thread Gil G.
This is what I found: http://www.frenning.dk/OZ1PIF_HOMEPAGE/SignaLinkUSB-mods.html http://www.frenning.dk/OZ1PIF_HOMEPAGE/images/Wireless%20Article%20-%20Signalink%20USB%20Mods%20v6.pdf http://www.k7sfn.com/projects/signalink.html Maybe not a big problem on HF, but I wonder.. I am not saying

Re: [Elecraft] Elecraft USB interface.

2013-02-10 Thread Joel Black
Gil, I have used a SLUSB for years. I have used it on everything from PSK31 to Olivia to JT65 (HF). It works. Could it be better? Perhaps. I am familiar with the pages you link below. In my opinion, the juice is not worth the squeeze. All that said, this is amateur radio. One of the

Re: [Elecraft] Elecraft USB interface.

2013-02-10 Thread W4GRJ
Gil, Interesting articles on the SL interface. All I know is, I use one all the time mainly on MARS MT-63 and Olivia with no issues. I also use a US Navigator which I think is the gold standard for digital interfaces http://www.navigator-interface.com/ Jack W4GRJ On Feb 10, 2013, at 12:06,

Re: [Elecraft] [OT] I made a knob, a PigKnob.

2013-02-10 Thread Nick Garner
Hi everyone, Going wireless, adding the transceivers, would increase the cost quite a bit and power has to be figured out. Some day, perhaps. I have received many suggestions from folks who have seen the video and a lot is going to change. Once the next prototype is built, I'll put up a new

Re: [Elecraft] Elecraft USB interface.

2013-02-10 Thread K4ia
Check the date on the article. He says they made mods to the later models. Craig Buck On Feb 10, 2013, at 12:06 PM, Gil G. g...@keskydee.com wrote: This is what I found: http://www.frenning.dk/OZ1PIF_HOMEPAGE/SignaLinkUSB-mods.html

Re: [Elecraft] Elecraft USB interface.

2013-02-10 Thread Phil LaMarche
I have a like new Signal Link USB that has a cable for the K3 and USB cable. Just didn't use it. 60.00 shipped if anyone has a need. Phil Philip LaMarche 727-944-3226 727-510-5038 Cell www.w9dvm.com WWW.FLAMGROUP.COM K3 # 1605 KPA500 # 029 P3 #1480 KAT500 #50 CCA 98-00827 CRA 1701

Re: [Elecraft] Elecraft USB interface. Signal Link

2013-02-10 Thread Phil LaMarche
The Signal Link is sold. Many thanks. Phil Philip LaMarche   727-944-3226 727-510-5038 Cell   www.w9dvm.com WWW.FLAMGROUP.COM K3 # 1605 KPA500 # 029 P3 #1480 KAT500 #50  CCA 98-00827 CRA 1701 W9DVM   -Original Message- From: elecraft-boun...@mailman.qth.net

Re: [Elecraft] KPA500 - Rx Attenuation

2013-02-10 Thread jpescatore
Disconnected PTT line from KPA500, still 15 db attenuation on RX. -Original Message- From: Dick Dievendorff die...@comcast.net To: mcduffie mcduf...@garymcduffie.com; 'John K3TN' jpescat...@aol.com Cc: 'elecraft' elecraft@mailman.qth.net Sent: Sun, Feb 10, 2013 5:58 am Subject: RE:

Re: [Elecraft] KPA500 - Rx Attenuation

2013-02-10 Thread iain macdonnell - N6ML
My bet is on a fried PIN diode (I think the T/R system gets bypassed when you switch to standby mode). Best to contact support 73, ~iain / N6ML On Sun, Feb 10, 2013 at 12:01 PM, jpescat...@aol.com wrote: Disconnected PTT line from KPA500, still 15 db attenuation on RX.

[Elecraft] Unusual P3 behavior ?

2013-02-10 Thread Phil Hystad
I have a K3/P3, actually, have KPA500 and KAT500 too but this question is about my P3. If I switch to 10-meters (and, there is activity on the band), the P3 shows the signals and the waterfall for about two seconds. After about two seconds, there is a change. The waterfall signal disappears

Re: [Elecraft] Elecraft USB interface.

2013-02-10 Thread Jeff Herr
If you want your panadapter to sample and display a properly I would think most folks would ASSUME some signal fidelity was in order. Most don't care about freq response.i guess they dont expect much when they use hrd or dm780 or nap3 etc.

Re: [Elecraft] Elecraft USB interface.

2013-02-10 Thread Walter Underwood
My single disappointment in the KX3 is that it has a forest of cables instead of a single USB port. I understand that the available USB chips create a lot of RF noise, but dang, we've had USB for fifteen years, and it just chafes me that we're fussing with the best A/D converter for a signal

Re: [Elecraft] Unusual P3 behavior ?

2013-02-10 Thread Don Wilhelm
Phil, That is not normal behavior. Check (by replacement) the BNC cable between the K3 IF output and the P3. In the past there were a few bad ones found. 73, Don W3FPR On 2/10/2013 4:14 PM, Phil Hystad wrote: I have a K3/P3, actually, have KPA500 and KAT500 too but this question is about

Re: [Elecraft] Elecraft USB interface.

2013-02-10 Thread Don Wilhelm
I believe the question was about using an interface box (with integral soundcard) for digital modes. That application does not need a great soundcard or a wide frequency response. Those wanting a panadapter display using the I and Q outputs from the KX3, then a good quality soundcard is a

Re: [Elecraft] Elecraft USB interface.

2013-02-10 Thread Joe Subich, W4TV
it just chafes me that we're fussing with the best A/D converter for a signal that was originally digital. Whoa! *Any* signal you receive with an antenna is *analog*. You may convert it to digital for detection but it is an analog signal. In addition, any voice (phone) signal started out

Re: [Elecraft] KPA500 - Rx Attenuation

2013-02-10 Thread AG0N-3055
On Sat, 09 Feb 2013 21:23:40 -0700, AG0N-3055 wrote: On Sat, 9 Feb 2013 19:51:09 -0800 (PST), John K3TN wrote: I thought 40M signals sounded kinda low, and the noise floor on the P3 was down - but then noticed when I turned the KP!500 from OPER to STBY, signals came about 15db. No fault

Re: [Elecraft] Elecraft USB interface.

2013-02-10 Thread Don Pomplun
Plus, I understand that the SL USB sound card is not stereo, and you need that to use the I/Q interface from the KX3 Don K2BIO At 02:10 PM 2/10/2013, you wrote: I believe the question was about using an interface box (with integral soundcard) for digital modes. That application does not

Re: [Elecraft] Elecraft USB interface.

2013-02-10 Thread Walter Underwood
On Feb 10, 2013, at 2:27 PM, Joe Subich, W4TV wrote: it just chafes me that we're fussing with the best A/D converter for a signal that was originally digital. Whoa! *Any* signal you receive with an antenna is *analog*. You may convert it to digital for detection but it is an analog

Re: [Elecraft] Unusual P3 behavior ?

2013-02-10 Thread Nate Bargmann
* On 2013 10 Feb 15:51 -0600, Don Wilhelm wrote: Phil, That is not normal behavior. Check (by replacement) the BNC cable between the K3 IF output and the P3. In the past there were a few bad ones found. My IF cable cable between the K3 and P3 can be flaky at times as well. I've found that

[Elecraft] K3EXREF Experience

2013-02-10 Thread Chad Wasinger
Hi Group, I wanted to post my experience with the addition of the K3EXREF in my K3. First off, took me around 30 minutes to install, everything went smooth. Very nice addition to my K3! I run a OCXO 10 MHz reference into the module and working just as I hoped it would. When turning the radio

Re: [Elecraft] KPA500 - Rx Attenuation

2013-02-10 Thread Eric Swartz WA6HHQ - Elecraft
Hi Gary, This is normal as the KPA500 is designed to attenuate signals the further you go below the 160M band in order to protect the T/R switching diodes from BC band overload. 73, Eric WA6HHQ elecraft.com _..._ On Feb 10, 2013, at 5:28 PM, AG0N-3055 mcduf...@ag0n.net wrote: The

[Elecraft] P3 generates noise on 144 MHz

2013-02-10 Thread Roger Crofts
I recently installed the K144XV 2meter converter in my K3. I could work strong stations on 2m with no problem, but weak stations were swamped by noise which was S9 over the entire band. My P3 was showing that the noise consisted of carriers every 19KHz with lots of buzzy noise in-between. I

Re: [Elecraft] KPA500 - Rx Attenuation

2013-02-10 Thread Rick Robinson
Isn't this basically what the Roofing Filter option in the KX3 does. Waiting on mine to arrive this Thursday...Rick On Sun, Feb 10, 2013 at 6:08 PM, Eric Swartz WA6HHQ - Elecraft e...@elecraft.com wrote: Hi Gary, This is normal as the KPA500 is designed to attenuate signals the further you

Re: [Elecraft] KPA500 - Rx Attenuation

2013-02-10 Thread Ron D'Eau Claire
If you are using a K3 with your KPA500, you can connect the antenna for lower frequency operation to the RX ANT IN port on the K3. That's works well for me on the AM broadcast band. 73 Ron AC7AC -Original Message- From: elecraft-boun...@mailman.qth.net

Re: [Elecraft] KPA500 - Rx Attenuation

2013-02-10 Thread AG0N-3055
On Sun, 10 Feb 2013 18:08:15 -0500, Eric Swartz WA6HHQ - Elecraft wrote: This is normal as the KPA500 is designed to attenuate signals the further you go below the 160M band in order to protect the T/R switching diodes from BC band overload. Thanks, Eric. Interesting. Is there a way to

Re: [Elecraft] KPA500 - Rx Attenuation

2013-02-10 Thread Don Wilhelm
Rick, The roofing filter option for the KX3 serves an entirely different function. It reduces the possibility of a strong adjacent channel signal overloading the KX3 at the product detector stage. The filters in the KPA500 (and the K3) that attenuate signals below 1600 kHz are in the front

Re: [Elecraft] P3 generates noise on 144 MHz

2013-02-10 Thread K7MDL
I took special care to ensure all case covers metal to metal connections were sanded free of paint. I also did my best to route internal coax cables near the K3 Synth unit modules in a way to prevent least problems. I also use a ferrite snap on cylinder with several wraps on the 12VDC P3 power

Re: [Elecraft] Unusual P3 behavior ?

2013-02-10 Thread K7MDL
I have noticed when changing to certain bands there is a delay in setting the new reference level. Several seconds in I hear a relay click in the P3 and the grass drops down. Does not always do this, or always on the same band, but often enough that I am accustomed to it and not worried, it is

Re: [Elecraft] KPA500 - Rx Attenuation

2013-02-10 Thread Rick Robinson
Oooop's. I saw somewhere about AM band reception. It is the ATU filters.Here is what I was thinking of The KXAT3 antenna wide range tuner plugs into existing connectors inside the KX3. The KXAT3 stores the settings found for the best match at multiple points across each band, allowing for

Re: [Elecraft] Elecraft USB interface.

2013-02-10 Thread Bill Frantz
On 2/10/13 at 1:47 PM, wun...@wunderwood.org (Walter Underwood) wrote: That D-A-D path just seems wrong. Amen! Bill, AE7JV --- Bill Frantz| Re: Computer reliability, performance, and security: 408-356-8506

Re: [Elecraft] Elecraft USB interface.

2013-02-10 Thread Don Wilhelm
Would you want to support a driver for all OS platforms on all versions in use by the ham community? I think not. 73, Don W3FPR On 2/10/2013 8:18 PM, Bill Frantz wrote: On 2/10/13 at 1:47 PM, wun...@wunderwood.org (Walter Underwood) wrote: That D-A-D path just seems wrong. Amen! Bill,

Re: [Elecraft] Elecraft USB interface.

2013-02-10 Thread Don Wilhelm
As an example of the difficulty of using a digital to digital path, I recently tried to load the drivers for the USB 'dongle' that was featured in a recent QST article - Cheap and Easy SDR. I found it not so easy, and so far have been ultimately unsuccessful. Give me a soundcard based

Re: [Elecraft] Elecraft USB interface.

2013-02-10 Thread Bill Frantz
I've thought about this kind of device for a while. Here is what I think it should do: * It should include a USB hub to it can appear as several devices to the computer. * One device should emulate a USB sound card. This emulation will allow standard drivers to be used. (They are included

Re: [Elecraft] Elecraft USB interface

2013-02-10 Thread Ray Sills
HI Walter: There's a thread going on over at the KX3 Yahoo group regarding using the USB connection for the KX3 utility. At least -some- single-cable operation is possible with the KX3. You can use the KX3 utility as a terminal for RTTY (and presumably PSK31) operation. There is a text

Re: [Elecraft] Unusual P3 behavior ?

2013-02-10 Thread Bill Hammond
I see (hear) the same thing, high noise then a a second or so click and my adjusted reference level. I just assumed that is the design, always works just a little delay. 73, Bill AK5X On Feb 10, 2013, at 6:47 PM, K7MDL wrote: I have noticed when changing to certain bands there is a delay

Re: [Elecraft] Unusual P3 behavior ?

2013-02-10 Thread Phil Hystad
Fred and Bill, Thanks for your answer -- I think that is probably the issue. I totally forgot about the ref lvl setting. Of course, that delayed behavior would have still confused me a bit. Thanks. 73, phil, K7PEH On Feb 10, 2013, at 5:54 PM, Fred Jensen k6...@foothill.net wrote: I

Re: [Elecraft] P3 generates noise on 144 MHz

2013-02-10 Thread David G4DMP
I had a similar problem, Roger, and cured it completely by putting a ferrite clamp-on on each end of the 12V power cable between the K3 and the P3. But YMMD 73 de David G4DMP In a recent message, Roger Crofts ro...@monitorsensors.com writes [snip] I could work strong stations on 2m with no

[Elecraft] [K3] Custom 700 Hz 8-Pole Filters

2013-02-10 Thread Gary W. Hvizdak
The next batch of 700 Hz filters is due to arrive this week! Ken and I are pleased to announce that -- for the first time -- these filters will be available from stock while supplies last. Depending on demand, they'll probably sell out sometime between Dayton and Field Day. We cannot yet say

Re: [Elecraft] P3 generates noise on 144 MHz

2013-02-10 Thread Tim Hague
I'd be interested to see the EMC Test Report on the P3, required for selling into the EU and I think Australia, the P3 should not radiate emissions at this level and pass EN55022 or similar standards. Perhaps Elecraft could comment please?. I was thinking of picking up a P3 at Dayton but may