Re: [Elecraft] K3, K3/0 Mini, P3, XV144, more for sale
The K3/0 Mini is sold. K3/100 sale pending. Still have the P3 and some other items left. Mike K7MDL CN88sf -Original Message- From: Mike Lewis Sent: Wednesday, November 16, 2022 22:52 To: elecraft@mailman.qth.net Subject: K3, K3/0 Mini, P3, XV144, more for sale Continuing to clear out redundant equipment from recent home sale. For sale are: Sale Pending - Elecraft K3/100 SN 6031 - original owner, fully loaded. $2600 4 filters - 13KHz FM/AM, 2.7KHz (5-pole), 2.1KHz InRad, 400Hz Inrad filters in Main RX KPA3A 100W PA KAT3 ATU (tuner for 2 Antennas) High stability TXCO option K3SYN PLL KXV3 Xvtr interface KIO3 IO interface KBPF3 General coverage band pass filter Has the 2nd RX options KRX3 SubRX module for dual RX K3SYN PLL 4 filters - 13KHz FM/AM, 2.7KHz (5-pole), 2.1KHz InRad, 400Hz Inrad filters in Sub RX (must match Main RX filter set) Manuals Elecraft P3 Panadapter. SN 1750 $650 SOLD - Elecraft K3/0 Mini Remote control head. No Cables. $650 Elecraft XV144 2M External Xvtr. Modified for ext LO, easily converted back to the xtal with oven, manual. $375 DEMI 1296 Xvtr. 144IF (-20dBm to 10W configurable input power range). 3W output. Modified for external LO but can be converted back to Xtal if desired. $275 DEMI 1296 18W PA module in die cast box, N connectors, with heat sink. $75 Kenwood TS-930S - Antenna tuner, Mem backup batteries removed. PA fan switch not working, fan is good. Otherwise nice looking rig in good working condition, 100W out. SN 5060143. $250 Kenwood SP-930 External Speaker, A/B switch, 3 tone filter buttons. $100 Kenwood SP-940 External Speaker, A/B switch, 3 tone filter buttons. $100 Mike K7MDL CN88sf __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to arch...@mail-archive.com
[Elecraft] K3, K3/0 Mini, P3, XV144, more for sale
Continuing to clear out redundant equipment from recent home sale. For sale are: Elecraft K3/100 SN 6031 - original owner, fully loaded. $2600 4 filters - 13KHz FM/AM, 2.7KHz (5-pole), 2.1KHz InRad, 400Hz Inrad filters in Main RX KPA3A 100W PA KAT3 ATU (tuner for 2 Antennas) High stability TXCO option K3SYN PLL KXV3 Xvtr interface KIO3 IO interface KBPF3 General coverage band pass filter Has the 2nd RX options KRX3 SubRX module for dual RX K3SYN PLL 4 filters - 13KHz FM/AM, 2.7KHz (5-pole), 2.1KHz InRad, 400Hz Inrad filters in Sub RX (must match Main RX filter set) Manuals Elecraft P3 Panadapter. SN 1750 $650 Elecraft K3/0 Mini Remote control head. No Cables. $650 Elecraft XV144 2M External Xvtr. Modified for ext LO, easily converted back to the xtal with oven, manual. $375 DEMI 1296 Xvtr. 144IF (-20dBm to 10W configurable input power range). 3W output. Modified for external LO but can be converted back to Xtal if desired. $275 DEMI 1296 18W PA module in die cast box, N connectors, with heat sink. $75 Kenwood TS-930S - Antenna tuner, Mem backup batteries removed. PA fan switch not working, fan is good. Otherwise nice looking rig in good working condition, 100W out. SN 5060143. $250 Kenwood SP-930 External Speaker, A/B switch, 3 tone filter buttons. $100 Kenwood SP-940 External Speaker, A/B switch, 3 tone filter buttons. $100 Mike K7MDL CN88sf __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to arch...@mail-archive.com
Re: [Elecraft] K3/0-Mini, XV432, RemoteRig and more for Sale
Updated previous list and added other items, making room in the new shack. For sale now: DEMI 902/3 Xvtr, 10W 144 IF. $275. DEMI 1296 Xvtr, 3W, 144 IF. $275. All Xvtrs above are modified to use a DigiLo PLL via a SMA but can be easily flipped back to the crystal if desired. Elecraft K3/0-Mini-F remote control head. $700. Adding These: Tektronix 475A Oscope - $200 Make offer on these! - The heavy items I am not likely to ship. TS-930S HF rig, 100W TS-700A All mode 2M rig, 10W 2.5KW water cooled Bird dummy load 50uA Bird wattmeter in steel case (regular Bird 43 is 30uA and smaller meter face). Maybe works with dummy load 60Mhz network analyzer, connects to PC Sola Basic RF wattmeter - White metal case, clone of a Bird 43, uses same slugs. Tektronix 1401 Spectrum analyzer Module. 12V operation, uses an oscope for display. Mike K7MDL CN88sf __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to arch...@mail-archive.com
[Elecraft] K3/0-Mini, XV432, RemoteRig and more for Sale
Moved out of 2nd home with full VHF+ station so no longer need remote access and redundant transverters, radios, and amps. For sale now: 1. XV432 refitted with a quiet Noctua fan and xtal oven option for $375. 2. DEMI 902/3 Xvtr, 10W 144 IF. $275. 3. DEMI 1296 Xvtr, 3W, 144 IF. $275. All Xvtrs above are modified to use a DigiLo PLL via a SMA but can be easily flipped back to the crystal if desired. 4. K7MDL design Multiband LO box. Band Decode input to select 1 of 6 LO slots. Each slot has programmable DigiLo frequency and programmable step attenuated level covering +22dBm to -28dBm I think. Internal 12-24V DC-DC converter for powering a remote coax switch. Band decode output for ant switch or transverter/amp selection. LCD with encoder for config menu system. 10MHz OCXO, can use external 10M or internal DigiLO clock. Also has GPS serial input for Grid square and time readout. $250 5. RemoteRig RRC-1258 MkIIs V7 radio Unit #1 with K3 cable set (Dual RX) $250 6. RemoteRig RRC-1258 MkIIs V7 radio Unit #2 with K3 cable set (Dual RX) $250 7. RemoteRig RRC-1258 MkIIs V7 Control Unit (Dual RX) with WiFi option and K3/0 Mini cable set. $300 8. Elecraft K3/0-Mini-F remote control head. $700. - Mike K7MDL Mike K7MDL EL87sm & CN88sf __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to arch...@mail-archive.com
Re: [Elecraft] For Sale: Elecraft Transverters for 144, 222, 432 (Jan 2022)
Update: The Microwave Modules 2M and XV432 are now spoken for. - Mike -Original Message- From: Mike Lewis Sent: Friday, January 28, 2022 02:09 To: elecraft@mailman.qth.net Subject: For Sale: Elecraft Transverters for 144, 222, 432 (Jan 2022) I have decided to part with a few of my stack of idle transverters. Among them are: XV144 XV222 XV432 All 3 have the crystal oven option and in perfect working order and cosmetically very good. Also have several printed manuals. All 3 are modified to run on an external LO source. The LO mod is easily reversible to use the original crystal and oven. Only a few parts and jumpers need to be repositioned. There is a SMA jack on the back panel for the external LO, you would need a suitable LO source with output up to maybe 14dBm, each is different. I used my Multiband LO box (DigiLo PLL based programmable frequency and level out with band decoder) published in Jan 2020 QEX. Looking for $350ea or $950 for all 3 (+shipping). Also have a Microwave Modules 144-28 with 10W out, offers considered. 73, Mike Lewis K7MDL CN88sf and EL87sm __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to arch...@mail-archive.com
[Elecraft] For Sale: Elecraft Transverters for 144, 222, 432 (Jan 2022)
I have decided to part with a few of my stack of idle transverters. Among them are: XV144 XV222 XV432 All 3 have the crystal oven option and in perfect working order and cosmetically very good. Also have several printed manuals. All 3 are modified to run on an external LO source. The LO mod is easily reversible to use the original crystal and oven. Only a few parts and jumpers need to be repositioned. There is a SMA jack on the back panel for the external LO, you would need a suitable LO source with output up to maybe 14dBm, each is different. I used my Multiband LO box (DigiLo PLL based programmable frequency and level out with band decoder) published in Jan 2020 QEX. Looking for $350ea or $950 for all 3 (+shipping). Also have a Microwave Modules 144-28 with 10W out, offers considered. 73, Mike Lewis K7MDL CN88sf and EL87sm __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to arch...@mail-archive.com
Re: [Elecraft] XV432 LO changed to DigiLo Synthesizer
Little typo with big impact The line I recently integrated a DigiLo 6GHz PLL synthesizer with a 10Mhz double oven OCXO into my 10GHz system and it is no rock solid. Should be Should be I recently integrated a DigiLo 6GHz PLL synthesizer with a 10Mhz double oven OCXO into my 10GHz system and it is NOW rock solid. It works well… From: Mike Lewis Sent: Saturday, March 2, 2019 19:35 To: 'elecraft@mailman.qth.net' Subject: XV432 LO changed to DigiLo Synthesizer A few days ago I tried FT-8 on 432 and discovered that my LO was not stable, hopping around several Hz plus drifting up to 40Hz . The 9V LO power was flat in both TX an RX, oven working. pushed, prodded, re-soldered, tuned, detuned, no change. I recently integrated a DigiLo 6GHz PLL synthesizer with a 10Mhz double oven OCXO into my 10GHz system and it is no rock solid. It has 255 preprogrammed frequencies, 404MHz being #2. So today I removed C82 (coupling cap to L5 filter section) and U2 (the LO 78L09 regulator). Drilled a hole near the power connector for a small SMA bulkhead connector. RG316 run from that to the C80 side of C82 PCB pad, soldered the shield to the L3 can. Set LO power jumper block to 1-2 so only on when the XV432 is selected. Nothing to warm up inside the XV432 any longer. The oven still powers up, but the rest of the LO is powered down so no matter. I wanted to keep all the parts inside and this can be backed out easily. I soldered the 78L09 to the nearby ground test clip loop so it could be found easily someday. The Digilo is around +2dBm output and the XV432 mixer wants closer to 17dBm. Fortunately there is a MMIC amp between the LO filter and mixer (fed from the LO power jumper blocks). Feeding the Digilo at C80 runs it through L5 filter section and TP1 is at 3.1VDC. Good enough. Happy to say it is working great, super weak beacons I was hearing before are now spot on, 0 drift, and the K3 offset correction (XVx OFS) is set to 0. Next up is to package the DigiLo and OCXO into a standalone metal case, add logic (CPU or 8-3bit encoder) to read the band decoder to auto set the correct LO frequency for different transverters. I am using my KRC2 -> TTL SP4T coax relay control lines for that. Will also add a manual programming switch. Then will convert the XV22 and my DEMI 902 an 1296 transverters, and of course the 10GHz system. I previously changed the PA module from the Toshiba to the Mitsubishi module. Retuned the front end, it is ready for FT-8 and other digital modes now. Mike, K7MDL __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
[Elecraft] XV432 LO changed to DigiLo Synthesizer
A few days ago I tried FT-8 on 432 and discovered that my LO was not stable, hopping around several Hz plus drifting up to 40Hz . The 9V LO power was flat in both TX an RX, oven working. pushed, prodded, re-soldered, tuned, detuned, no change. I recently integrated a DigiLo 6GHz PLL synthesizer with a 10Mhz double oven OCXO into my 10GHz system and it is no rock solid. It has 255 preprogrammed frequencies, 404MHz being #2. So today I removed C82 (coupling cap to L5 filter section) and U2 (the LO 78L09 regulator). Drilled a hole near the power connector for a small SMA bulkhead connector. RG316 run from that to the C80 side of C82 PCB pad, soldered the shield to the L3 can. Set LO power jumper block to 1-2 so only on when the XV432 is selected. Nothing to warm up inside the XV432 any longer. The oven still powers up, but the rest of the LO is powered down so no matter. I wanted to keep all the parts inside and this can be backed out easily. I soldered the 78L09 to the nearby ground test clip loop so it could be found easily someday. The Digilo is around +2dBm output and the XV432 mixer wants closer to 17dBm. Fortunately there is a MMIC amp between the LO filter and mixer (fed from the LO power jumper blocks). Feeding the Digilo at C80 runs it through L5 filter section and TP1 is at 3.1VDC. Good enough. Happy to say it is working great, super weak beacons I was hearing before are now spot on, 0 drift, and the K3 offset correction (XVx OFS) is set to 0. Next up is to package the DigiLo and OCXO into a standalone metal case, add logic (CPU or 8-3bit encoder) to read the band decoder to auto set the correct LO frequency for different transverters. I am using my KRC2 -> TTL SP4T coax relay control lines for that. Will also add a manual programming switch. Then will convert the XV22 and my DEMI 902 an 1296 transverters, and of course the 10GHz system. I previously changed the PA module from the Toshiba to the Mitsubishi module. Retuned the front end, it is ready for FT-8 and other digital modes now. Mike, K7MDL __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
[Elecraft] Ouch - An Update
So brought the K3 in to work this morning to our lab area where we have static benches, blowers, wrist straps etc. and opened it up. Sure enough, the T4 transformer was pretty crispy looking. My boss who is also an avid ham (dream job setup :) ) then sprang into action. He removed the transformer, counted the turns, removed the old wire, found some new magnet wire of the proper gauge, rewound the toroid, and replaced both it and the straight through portion (which had gotten pretty hot from the proximity to the core.) Prior to stripping the burned turns off of T4 we looked at it under a microscope and saw that the windings had burned open in one place, effectively acting as a fuse of sorts. There didn't seem tpo be any other parts, connectors, or board traces that looked to have been stressed. I brought the radio home and hooked it up to a dummy load and a reasonably accurate external wattmeter. It seems to be fine, both on receive and transmit. I was hoping there was a built in SWR bridge cal procedure, but I didn't see anything like that in the manual. The SWR values reported though seem to match the LP-100A I am using externally pretty closely. I did try to follow the Wattmeter calibration and ran into some confusion on the procedure as written in the manual. I think I was able to puzzle it all out except for one item - how do you change the config menu item from CONFIG:WTMR LP to CONFIG:WTMR HP? It doesn't seem to change just by having the tune power changed to 50 watts, so I am at a loss on how to change it. So perhaps my K3 is now alright again, although I would appreciate any other comments on other things to check or calibrate. And thanks to all on the list who helped me out. After this the next project is to fuse the DC supply cables to my DC blocks with some rationally small value of fast blow fuse :) de Mike/KE0MF __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to arch...@mail-archive.com
[Elecraft] Ouch
So about 20 minutes prior to starting another successful Field Day with my trusty K3 I powered it up for the first time after connecting everything had just started some tests when my buddy starting yelling that I was letting some of the magic smoke out of the radio. Sure enough, there was smoke coming out of the back of the radio. I dived over and pulled the power. To make a long story short, I was running an S9 31' vertical antenna base tuned with an SG-231 autotuner, with the auto tuner powered over the coax using DC blocks. The exact same config as I ran with last year with wonderful results. Unfortunately this year in my excitement I carelessly installed the DC block at the radio end BACKWARDS, sending the 13.8v from my 30 switched supply right into the antenna jack. After the incident I powered back up with my finger on the off switch to try to assess the level of damage. The radio puts out some power, but the SWR is infinite even into a dummy load. I am not sure of the status of the receiver input chain as I didn't want to put it back onto a real antenna. So I am just wondering before I open it up what kind of damage I might find and what kind of options I might have for repair. Has anyone heard of this sort of a bonehead mistake? Any ideas on what I might have fried? Given this is a mechanical assembly only kit is there any chance any of the parts are going to be user serviceable? I love the radio and I'm hoping it is at least salvageable. Thanks for any insights, Mike/KE0MF __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to arch...@mail-archive.com
Re: [Elecraft] Elecraft Digest, Vol 85, Issue 53
Ratelco is a name I have not heard in a long time. Ratelco had a couple businesses that split over time. Radio site management still exists in Seattle area, radio installation and repair including Motorola depot repair, I think this was acquired in the recent past, and a telco power systems division. I happen to have worked for the power systems division as one of the few engineers there for 3 years in 1987-1989. In the early nineties the Power Systems Division was acquired by CD Technologies. I doubt you will find any transformer info online as they were designed and built inhouse before the internet age, assuming this unit is from that era. So you might try contacting CD Technologies for info. Mike Lewis K7MDL Grid Locator CN87xt Member of Pacific Northwest VHF Society #C96 (www.pnwvhfs.org) Visit the K7MDL Amateur Radio Pages web site at http://www.K7MDL.NET Elecraft K2 #2633 --Forwarded Message Attachment-- From: r...@cobi.biz To: ro...@accima.com; elecraft@mailman.qth.net Date: Sun, 29 May 2011 08:34:25 -0700 Subject: Re: [Elecraft] OT - Help Ratelco P/N Bob, you might try calling Ratelco at (520) 295-4300 (Tucson, Az). Ron AC7AC -Original Message- Morning - Sorry for the OT request but maybe someone can help. I'm collecting parts for a K3 analog power supply and have come upon two large unknown Ratelco, Inc transformers. I've tried and about given up searching the net for information. Ratelco, Inc. part number 2045 and is a transformer with several windings. One set very heavy current. Ratelco, Inc. part number 2590G and is a large choke of some current capacity. Any information, especially current ratings, would be appreciated. Thanks 73 Bob W7AVK K2/100 s/n 4365 __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
[Elecraft] [XV144] Local Oscillator Power Control
My answers inline ... How do you manage the 'Local Oscillator Power Control'? I configure to remain on at all times. And do you have the XVOVN (crystal oven)? Yes Of the 3 power control options, which do you use (JP9, 1-2, 2-3, 4-5)? JP9 pins 4-5. My K2+transverters are mostly dedicated to VHF+ work, and is always turned on monitoring local SSB activity and weekly 2M and 1296 SSB/CW nets. The power draw is so low it is not worth turning off. I assigned the squelch to the PF1 button to keep things quite and listen for random local stations. Pins 2-3 might better suit you if you only occasionally use your K2. Do you have the oven? Yes Does anyone find they need to leave the oven on all the time to achieve best stability? Yes, mostly for reduced startup drift. The unit will create heat when you start transmitting and get some drift. Especially important for digital modes operation. If the XV144 is not used that often, would it be better to turn the crystal and the oven off when the XV144 is not in use? I do not see any advantage to turning it off. My has stayed on its whole life (had mine since they were first released, a couple years now). I use it for rover portable in VHF and Microwave contests also - temperature swings are signifiicant in this usage. It doubles as a IF for my microwave transverters with help from the KRC2 band decoder. There is a paper on my web site for how I set up my portable contest station built around the K2. It lists all the jumper positions and mods I used. TIA 73 de M0XDF / FISTS #12575, K3 # 174 73, Mike Lewis K7MDL Grid Locator CN87xt Member of Pacific Northwest VHF Society #C96 (www.pnwvhfs.org) Member of Microsoft Amateur Radio Club (www.microhams.com) Visit the K7MDL Amateur Radio Pages web site at http://mysite.verizon.net/michael_d_lewis/index.html Elecraft K2 #2633 ___ 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: Fwd: [Elecraft] Transverter inquiry
I will add that I just added the XV432 to my stack, and I adjusted it for a maximum of 1mw output to suit an external amplifier by choosing the right combination of input attentuation in the transverter. Additionally with the K2 as an IF rig, and some other rigs, you can set the per band power output to further limit drive power. There is a huge range of adjustment in the transverer attenuator. I run most of my xverters at 2-10watts to suit my amplifiers. Mike Lewis K7MDL Grid Locator CN87xt Member of Pacific Northwest VHF Society #C96 (www.pnwvhfs.org) Member of Microsoft Amateur Radio Club (www.microhams.com) Visit the K7MDL Amateur Radio Pages web site at http://mysite.verizon.net/michael_d_lewis/index.html Elecraft K2 #2633 From: Eric Swartz - WA6HHQ, Elecraft [EMAIL PROTECTED] To: [EMAIL PROTECTED] CC: Wayne Burdick [EMAIL PROTECTED], [EMAIL PROTECTED],Elecraft List elecraft@mailman.qth.net Subject: Re: Fwd: [Elecraft] Transverter inquiry Date: Mon, 17 Apr 2006 10:56:14 -0700 Hi Web, I also use all of the XVs in my shack and they do not have a heat problem. The only restriction we place on them is for continuous duty FM use, where we recommend that they run at 5W. I believe this is where some customers felt they were hot when they didn't follow this recommendation and tried to run FM at 20W for long transmissions. For SSB and CW use I've used them in contests with zero heat issues. Also, for your requirement where they are run at 10W or less they will have even more margin. 1W for the 432 will be cool regardless of what your duty cycle is. :-) I don't see a problem. The XVs are linear transverters and can have their input driving power range set by their internal jumpers and power range potentiometer. You can easily set them up so that they only put out 1W or 10W max for a given amount of drive. (This assumes you are driving them with low level inputs in the -20 dBm to +10 dBm ranges and can control your max drive power.) Please feel free to email me if you have any further questions. Another good person to talk to is Mike, K7MDL, [EMAIL PROTECTED] ,who has all of our XVs in his mobile VHF/UHF contesting rover set up. He has a web page describing this set up at: http://mysite.verizon.net/michael_d_lewis/Portable_HF_VHF_Station.htm 73, Eric WA6HHQ http://www.elecraft.com ___ From: Web Williams [EMAIL PROTECTED] Date: April 17, 2006 9:29:28 AM PDT To: Elecraft List elecraft@mailman.qth.net Subject: [Elecraft] Transverter inquiry Question 1: I'm thinking about buying all the transverter kits, and remember that some folks said something about a heat problem. Has Elecraft made any modifications to make them run cooler? Question 2: All my amps require 10 watts input- 20~25 watts would probably damage them. My 432 amp only wants one watt input, I think. Is it possible to turn the RF out down when building the transverters so that it would be impossible to exceed 10 watts (or one watt, in the case of the 432 transverter)? Thanks, -Web in Myrtle Beach, SC --- ___ 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] RE: K2 Transverter TRN3 and TRN6 setup problems
Update - after several experiments with Ben, I have reproduced the problem on TRN6 100% of the time, but not on TRN3, which I have been using for a long time now. I am using TRN1-4. I turned on and played with TRN5 also, and tried different ADDR values on both TRN 5 and 6, but TRN 5 works fine, and TRN 6 always locks up when the VFO dial is moved. Ben still has the problem on TRN3 for some reason. Maybe some firmware differences? A mystery to be solved. After setting up the TRN3 and/or TRN6 parameters in the K2 and returning to normal operation, as soon as VFO knob turned the frequency on the display go to what seems to a randome one, AND VFO input is ignored (?) as dispaly is locked. Other TRN bands (TRN1, 2, 4, 5) work OK. I have not seen this problem quite as described, and am running the latest firmware in the QRP configuration with internal tuner. One thing that might be happening is the initial displayed frequency might be uninitialized so is randomly set out of band. Try to use the direct frequency input method to set the expected frequency. (Band- and + together, enter digits). 73, Mike, K7MDL ___ 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 Transverter TRN3 and TRN6 setup problems
Hi Ben, After setting up the TRN3 and/or TRN6 parameters in the K2 and returning to normal operation, as soon as VFO knob turned the frequency on the display go to what seems to a randome one, AND VFO input is ignored (?) as dispaly is locked. Other TRN bands (TRN1, 2, 4, 5) work OK. I have not seen this problem quite as described, and am running the latest firmware in the QRP configuration with internal tuner. One thing that might be happening is the initial displayed frequency might be uninitialized so is randomly set out of band. Try to use the direct frequency input method to set the expected frequency. (Band- and + together, enter digits). 73, Mike Lewis K7MDL Grid Locator CN87xt Member of Pacific Northwest VHF Society #C96 (www.pnwvhfs.org) Member of Microsoft Amateur Radio Club (www.microhams.com) Visit the K7MDL Amateur Radio Pages web site at http://mysite.verizon.net/michael_d_lewis/index.html Elecraft K2 #2633 ___ 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] Re: Using the old, original RJ45 Rigblaster with the K2
Hi Les, So, does anyone on the reflector know how to wire up this older (5 years) Rigblaster? Where did I go wrong? I have used the original Rigblaster with the K2 and MH2 mic no problem. One tip, I had the 4 pin mic connector on the front, but the PC board is the same, and I had removed the 4-pin connector, and soldered in a PC mounted 8 pin modular jack for my IC706MkIIG. Later when I moved it to the K2, I took that out and soldering in a 8pin jack into the holes right behind the modular jack. This was easy since my case was for the round connector to start with. You might have to open up the square hole some. Then you do not have to play adapter games with your mic. I also put the 5.6K resistor in the mic cable connector, not the radio, so I can use the radio with dynamic mics (like the Pro Set) and move the mics around between rigs. I cannot find any special notes and it looks like mine was wired straight through, but you have to make sure you are intercepting the PTT line in the RIGBlaster jumper header correctly, this should not pass though, as the PTT needs to go into the RIGBlaster first. 73, Mike Lewis K7MDL Grid Locator CN87xt Member of Pacific Northwest VHF Society #C96 (www.pnwvhfs.org) Member of Microsoft Amateur Radio Club (www.microhams.com) Visit the K7MDL Amateur Radio Pages web site at http://mysite.verizon.net/michael_d_lewis/index.html Elecraft K2 #2633 ___ 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] RE: KRC-2 6 TRN band Info needed
Dave Asked: I would like to have some way to control more than the three bands available now. Hi Dave. If you are using any Elecraft transverters then the KRC-2 is not needed, saving some of the KRC-2 positions for the other transverters. In your case, I think you are connecting to 903 and up though so you need all non-Elecraft transverters in all TRN positions - TRN1 through TRN 6 to control external gear. For this, the 3 KRC-2 transverter outputs can be placed in to a binary output mode supplying 0-7. This will require you wire up a 3 to 8 line decoder (like a 74HC138) and probably an octal driver (I like ULN2803 myself) if the loads are not TTL/CMOS logic. The same configuration option is available for the ACC outputs to if I recall.There is enough space inside the KRC2 that I was able to put a small board inside the case. There is also a new configuration utility posted that may allow some other options, but I have not looked into it yet since my existng setup is serving my needs as is still. 73, Mike Lewis K7MDL Grid Locator CN87xt Member of Pacific Northwest VHF Society #C96 (www.pnwvhfs.org) Member of Microsoft Amateur Radio Club (www.microhams.com) Visit the K7MDL Amateur Radio Pages web site at http://mysite.verizon.net/michael_d_lewis/index.html Elecraft K2 #2633 - ___ 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] RE: K2/rigblaster/heil proset
Hi Slater, I use the original Rigblaster interface with my K2 and Heil Pro-Set Plus. I chose the Elecraft K2 wiring standard. Since I change between dynamic and electret condenser microphones (MH-2 and Pro-Set) I install my resistors now in the mic plug shell, not in the radio, and +5V is on pin 6 only. On the MH-2 the resistor connects +5V on Pin 6 to Audio on Pin 1. Pin 6 is left unconnected on the Pro-Set plug connector. I have made other unrelated mods to my RigBlaster such as put a 1/8 audio 3 circuit jack in the front panel, which inside the box, I built on a small perfboard a MAX232 based level converter for Icom CI-V comms, or in the case of the Elecraft, I pass straight through the Serial port pins 2 and 3 (Tx and RX data lines) since the K2 does it's own level conversion. This way only a single com port is required versus 2 for PTT and Rig CAT control. Even though the K2 supports some CAT based keying which for CW is good, the RigBlaster audio interface requires PTT to disonnect the microphone and pass through computer audio into the mic circuit on the radio. You might also notice the PCB supports a board mounted 8 pin modular receptacle. My RigBlaster case had a round hole for the 4 pin round mic connector, and I changed it to a modular jack for my IC-706mkIIG and later FT-100, then finally to an 8 pin round mic connector for the Elecraft standard wiring. 73, Mike Lewis K7MDL Grid Locator CN87xt Member of Pacific Northwest VHF Society #C96 (www.pnwvhfs.org) Member of Microsoft Amateur Radio Club (www.microhams.com) Visit the K7MDL Amateur Radio Pages web site at http://mysite.verizon.net/michael_d_lewis/index.html Elecraft K2 #2633 _ Date: Sat, 29 Jan 2005 08:08:56 -0700 From: Slater Tubman [EMAIL PROTECTED] Subject: [Elecraft] K2/rigblaster/heil proset To: 'Elecraft' elecraft@mailman.qth.net Does anyone use a Rigblaster interface with a Mac - K2 - Heil Proset K2 combination? If so, which set of jumper settings in the Rigblaster did you use? The one shown for Alinco, Kenwood, SGC, Elecraft 8 pin screw on or the one for Yaesu mics. with common PTT audio grounds 8 pin screw on Older hand mics, desk mics and Heil mics.? The two jumper configurations are very different. Oh, if only there was one for Elecraft with Heil mic! tnx Slater VE5OA ___ 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
