[Elecraft] K3 External Reference input
Is there interest among the group for the necessary parts to input a disciplined 10MHz signal to control frequency? We all know there is a place holder on the back panel, but Gary just told me there were no plans. In April Wayne said it was coming but the price hadn't been set. Just wondering if anyone else out there has an interest like I do. 73, Phil K3(352)TUF ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net 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
RE: [Elecraft] K3 External Reference input
I am too. Back in April Wayne said: On Apr 29, 2007, at 3:20 AM, Bryan wrote: Hi Wayne, If you use the external 10Mhz signal, does this mean that you don't need the TCXO ? Even the standard K3 comes with a TCXO, so you'll always have one. The external reference option, when plugged in, will work with the TCXO. Note that the external reference module is not completed and may not be available at time of first shipments. But it'll be easy to install yourself once it arrives. Pricing hasn't been set. 73, Wayne N6KR Now that I have the K3 I'd like to connect it to my GPS Spectracom. 73, Phil K3(352)TUF -Original Message- From: Paul Christensen [mailto:[EMAIL PROTECTED] Sent: Friday, February 22, 2008 8:24 PM To: Philip Theis; elecraft@mailman.qth.net Subject: Re: [Elecraft] K3 External Reference input Is there interest among the group for the necessary parts to input a disciplined 10MHz signal to control frequency? We all know there is a place holder on the back panel, but Gary just told me there were no plans. I'm really hoping for this option. I use a Hewlett-Packard 58540A GPSDO for use with my IC-7800. Long-term accuracy when GPS-locked is typically 1E-12. That's essentially the same accuracy as the atomic cesium beam standards used on board the GPS satellites. Most GPSDOs are not known for their ultra-high phase noise performance. Still, the SC-cut OCXOs as used in the HP Z3801A, HP Z3816A, and HP 58540A units are typically -145 dBc/Hz @ 1kHz offset. On the used market, expect to pay USD $300-$800. However, there is one relatively new, compact GPSDO from Jackson Labs that has hit the market and offers excellent phase noise performance for a GPSDO.: http://www.jackson-labs.com/docs/Fury_Flyer.pdf Even better phase noise performance (e.g., -165 dBc/Hz @ 1 kHz) can be had through the use of non-GPS-disciplined OCXOs. For example, Wenzel makes highly accurate OCXOs with phase noise specs that are typically 0-15 dB better than the GPSDO types. http://www.wenzel.com/pdffiles1/Oscillators/Comp.pdf With either of these types, one simply connects the output of the OCXO to the 10MHz reference input on the transceiver with one cable. The OCXO is powered from a low-voltage DC power source. Although the K3 may not be capable of resolving to 1E-12 accuracy, you can be rest assured that when using either of these oscillator types that your signal will be the new frequency standard on the bands. Paul, W9AC ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net 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
RE: [Elecraft] K3 Transverter
Greg, You hit the nail on the head. Thanks, Phil -Original Message- From: Greg [mailto:[EMAIL PROTECTED] Sent: Friday, February 08, 2008 11:14 PM To: Philip Theis; elecraft@mailman.qth.net Subject: RE: [Elecraft] K3 Transverter Hi Phil, I'm not a transverter user, but seems like you have the XVn PWR setting to Hxx instead of Lxx. The L setting activates the Xverter IN/OUT and the H settings uses ANT 1/2. Its recommended you use the L setting to avoid transmitting high power into the transverter. From pg. 36 XVn PWR sets the K3 power output range to be used with this transverter band. L0.01- L1.27 specifies a power level in milliwatts, which requires the KXV3 option (use the XVTR IN and OUT jacks). H00.0-H12.0 specifies power in watts, and selects the K3's main antenna jack(s) for output. 73 Greg AB7R -Original Message- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] Behalf Of Philip Theis Sent: Friday, February 08, 2008 7:54 PM To: elecraft@mailman.qth.net Subject: [Elecraft] K3 Transverter I am unable to get the XVTR port to work on receive (haven't gotten to transmit yet) I have the menu items set up for transverter use, and I can get input to the radio just fine into the antenna or the RX IN port, but nothing on the XVTR IN port. I'm sure it's a setup issue, any thoughts? Thanks Phil K3(352)TUF ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net 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: Elecraft@mailman.qth.net 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] K3 Transverter
I am unable to get the XVTR port to work on receive (haven't gotten to transmit yet) I have the menu items set up for transverter use, and I can get input to the radio just fine into the antenna or the RX IN port, but nothing on the XVTR IN port. I'm sure it's a setup issue, any thoughts? Thanks Phil K3(352)TUF ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net 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] K2 FS
K3's on it's way so it's time to sell my K2. This is SN 1309 and has been used in many successful VHF/UHF contests. Consists of: K2 KSB2 K160RX K60XV KNB2 KDSP2 KAT2 KIO2 KBT2 Email off list to discuss. Thanks, Phil K3TUF ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net 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] FS: K2 Complete
Making way for K3 Available: K2 1309 w/firmware upgrade KSB2 K160RX KNB2 KDSP2 KAF2 (still a kit) KIO2 KAT2 KBT2 Additional Cover KRC2 DEMI Transverter interface module All working fine, check 2007 January VHF Contest Results. New unbuilt cost total is over 1600 Offering everything for 1200 to the list for a week, then it goes on ebay. Thanks, Phil K3TUF ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net 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] IF feed for spectrum display
Eric put out a discussion of using an extra high impedance input buffer stage taking its signal from the output of the 2N5109 to properly isolate the external IF device. Does anyone have a simple circuit already worked out for this? If so, will they share it? I was contemplating a 2N5179 but would happily use something that is already engineered. I have one of the new SDR-IQ's and it is perfect to put behind the K2, gives 190KHz of bandwidth readout. See RFSPACE.COM Thanks Phil K3TUF ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net 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] CAL FIL question
Don, I just upgraded my firmware from 2.01 to 2.04 (along with the accompanying io upgrade) on my K2 sn 1309. I didn't do a good job of saving my settings, so I'm out of cal. I've gone through all possible (I think) kinds of calibration methods. What is the correct method? My main concern is SSB. I believe my CW cal is good as I've tracked and verified it with the spectrum analyzer. I have four methods of cal that I've saved from the past. They seem to all be different. Which is correct? The one that seems to give the best on air results is the one on the SSB adapter instructions. Is that one correct? The result sounds good to me (but I'm listening to myself) but on air reports say that it sounds constricted (I'm wondering if it's the heil hc4 cartridge). One other thing, is it possible that the firmware upgrade would have affected the carrier null? It seems that it did. I believe I have that under control. All of my use is through transverters on VHF and UHF frequencies. Will you be on for the upcoming VHF Sweepstakes? Thanks, Phil ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net 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] KAF2 K2 Audio Filter and RTC for sale
Hi, I have an un-built KAF2 for sale. Please make offer via email, Thanks, Phil ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net 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
