So I’m just gonna say this: He’s Don the Mon (that’s Spanish for ‘man’)!
Thanks, Mike NJ2OM > On Jul 26, 2020, at 10:54 AM, Don Wilhelm <[email protected]> wrote: > > Mike, > > That is good news - it sounds like you are back in business with the K2/100. > > 73, > Don W3FPR > >> On 7/25/2020 12:19 PM, Mike Kopacki wrote: >> Well, Don, it looks like the problem were the finals. I’m getting over 100 >> watts on all bands except 10 meters where I’m getting 94. >> >> I can’t thank you enough for helping me. I wouldn’t have been able to track >> it down without your help! >> >> Maybe our paths will cross some day and I can buy you a beer! >> >> I will post a final update to the forum. >> >> Thanks, >> Mike NJ2OM >> >>>> On Jul 25, 2020, at 9:23 AM, Don Wilhelm <[email protected]> wrote: >>> >>> Mike, >>> >>> If your R50 is a half watt resistor, there should be no need to replace it. >>> >>> 73, >>> Don W3FPR >>> >>>> On 7/25/2020 8:07 AM, Mike Kopacki wrote: >>>> Good morning, Don. >>>> >>>> The PAkit includes a replacement for R50. Should I replace that? >>>> >>>> Thanks, >>>> Mike NJ2OM >>>> >>>>>> On Jul 21, 2020, at 5:56 PM, Don Wilhelm <[email protected]> wrote: >>>>> Mike, >>>>> >>>>> I am just trying to determine if the PA transistors are the original >>>>> Mitsubishi or the batch that Elecraft ordered after Mitsubishi stopped >>>>> making them. The originals did not have to be matched, and the batch >>>>> after that were initially not matched - I found that the Hfe varied >>>>> greatly resulting in many PA transistor failures, and after that finding, >>>>> they were matched by Elecraft. >>>>> >>>>> So if the PA transistors you took out were marked as Mitsubishi, they may >>>>> have been OK, but early 2000's says that they may have been the >>>>> mismatched transistor pair. I can't recall the year I discovered that >>>>> problem - it was likely 2008 or so. >>>>> >>>>> I suspect yours may be in the time after the Mitsubishi and were not >>>>> matched at the time. >>>>> >>>>> 73, >>>>> Don W3FPR >>>>> >>>>>> On 7/21/2020 5:33 PM, Mike Kopacki wrote: >>>>>> I probably built it in the early 2000’s. But I’ve been off the air for a >>>>>> good 15 years. >>>>>> >>>>>> What are you thinking? >>>>>> >>>>>> Thanks, >>>>>> Mike NJ2OM >>>>>> >>>>>>>> On Jul 21, 2020, at 4:01 PM, Don Wilhelm <[email protected]> >>>>>>>> wrote: >>>>>>> Mike, >>>>>>> >>>>>>> Good, but if the new PA transistors don't fix it, there is not much >>>>>>> more to check in the PA circuit. >>>>>>> How old is this K2? >>>>>>> >>>>>>> 73, >>>>>>> Don W3FPR >>>>>>> >>>>>>>> On 7/21/2020 3:57 PM, Mike Kopacki wrote: >>>>>>>> I got an email from Elecraft right after I sent you the voltages, >>>>>>>> saying the PAkit has been shipped. So I’m keeping my fingers crossed >>>>>>>> that a new set of transistors will fix it. >>>>>>>> >>>>>>>> Thanks, >>>>>>>> Mike NJ2OM >>>>>>>> >>>>>>>>>> On Jul 21, 2020, at 2:42 PM, Don Wilhelm <[email protected]> >>>>>>>>>> wrote: >>>>>>>>> Mike, >>>>>>>>> >>>>>>>>> That is good - right where it needs to be. >>>>>>>>> I would still replace Q7 and Q8. From all the measurements you made, >>>>>>>>> they appear to be weak at higher frequencies. >>>>>>>>> I sure don't know why that should be so, but it apparently is true. >>>>>>>>> >>>>>>>>> 73, >>>>>>>>> Don W3FPR >>>>>>>>> >>>>>>>>>> On 7/21/2020 2:33 PM, Mike Kopacki wrote: >>>>>>>>>> Haha, my bad again! It’s .625v! >>>>>>>>>> >>>>>>>>>> Thanks, >>>>>>>>>> Mike NJ2OM >>>>>>>>>> >>>>>>>>>>>> On Jul 21, 2020, at 12:29 PM, Don Wilhelm <[email protected]> >>>>>>>>>>>> wrote: >>>>>>>>>>> Mike, >>>>>>>>>>> >>>>>>>>>>> Did you misplace the decimal? It should be between 0.60 and 0.64 >>>>>>>>>>> volts. >>>>>>>>>>> If it really is over 6 volts, then you have a problem with Q11 and >>>>>>>>>>> Q13. >>>>>>>>>>> >>>>>>>>>>> There are few methods to reliably test those transistors at RF >>>>>>>>>>> levels. >>>>>>>>>>> >>>>>>>>>>> 73, >>>>>>>>>>> Don W3FPR >>>>>>>>>>> >>>>>>>>>>>> On 7/21/2020 11:41 AM, Mike Kopacki wrote: >>>>>>>>>>>> Q7 & Q8 removed. >>>>>>>>>>>> >>>>>>>>>>>> DC voltage, measured from the Base pads of both Q7 & Q8 during >>>>>>>>>>>> TUNE, is 6.25V for both. >>>>>>>>>>>> >>>>>>>>>>>> If you then believe Q7 and/or Q8 are bad, is there a way to check >>>>>>>>>>>> them when out of the circuit? >>>>>>>>>>>> >>>>>>>>>>>> Elecraft has not yet shipped the PAkit. >>>>>>>>>>>> >>>>>>>>>>>> Thanks, >>>>>>>>>>>> Mike NJ2OM >>>>>>>>>>>> >>>>>>>>>>>>>> On Jul 19, 2020, at 5:38 PM, Don Wilhelm >>>>>>>>>>>>>> <[email protected]> wrote: >>>>>>>>>>>>> Mike, >>>>>>>>>>>>> >>>>>>>>>>>>> If Q11 and Q13 are smack down on the board, to change them, crush >>>>>>>>>>>>> the transistor bodies Pliers, cutters, anything that works - >>>>>>>>>>>>> there should be enough lead left to pull it out of the hole. >>>>>>>>>>>>> >>>>>>>>>>>>> 73, >>>>>>>>>>>>> Don W3FPR >>>>>>>>>>>>> >>>>>>>>>>>>>> On 7/19/2020 5:32 PM, Mike Kopacki wrote: >>>>>>>>>>>>>> I will try to desolder them first, in case it’s Q11 & Q13 that’s >>>>>>>>>>>>>> bad. If I can’t I will sacrifice the PA transistors. >>>>>>>>>>>>>> >>>>>>>>>>>>>> Thanks, >>>>>>>>>>>>>> Mike NJ2OM >>>>>>>>>>>>>> >>>>>>>>>>>>>>>> On Jul 19, 2020, at 1:27 PM, Don Wilhelm >>>>>>>>>>>>>>>> <[email protected]> wrote: >>>>>>>>>>>>>>> Mike, >>>>>>>>>>>>>>> >>>>>>>>>>>>>>> If you do not have good desoldering tools, cut the leads off >>>>>>>>>>>>>>> near the transistor body and remove them one at a time. >>>>>>>>>>>>>>> Clean up with solder wick, and if solder is left in the holes, >>>>>>>>>>>>>>> heat the pad and push it out with a wooden toothpick. >>>>>>>>>>>>>>> >>>>>>>>>>>>>>> 73, >>>>>>>>>>>>>>> Don W3FPR >>>>>>>>>>>>>>> >>>>>>>>>>>>>>>> On 7/19/2020 1:20 PM, Mike Kopacki wrote: >>>>>>>>>>>>>>>> I ordered the K2PAKIT. Tomorrow I’m planning to remove Q7 & Q8 >>>>>>>>>>>>>>>> and recheck the bias voltages per your instructions. >>>>>>>>>>>>>>>> >>>>>>>>>>>>>>>> Thanks, >>>>>>>>>>>>>>>> Mike NJ2OM >>>>>>>>>>>>>>>> >>>>>>>>>>>>>>>>>> On Jul 18, 2020, at 3:20 PM, Don Wilhelm >>>>>>>>>>>>>>>>>> <[email protected]> wrote: >>>>>>>>>>>>>>>>> Mike, >>>>>>>>>>>>>>>>> >>>>>>>>>>>>>>>>> OK, yes there is a flat fiber washer, but it goes next the >>>>>>>>>>>>>>>>> board - the phenolic standoff goes over it. See the diagram >>>>>>>>>>>>>>>>> for PA transistor mounting in the manual. >>>>>>>>>>>>>>>>> >>>>>>>>>>>>>>>>> DO NOT OPERATE THE K2 IN TRANSMIT (or tune) WITH THE HEATSINK >>>>>>>>>>>>>>>>> REMOVED. >>>>>>>>>>>>>>>>> >>>>>>>>>>>>>>>>> Do check the bias voltage with your DMM again. >>>>>>>>>>>>>>>>> >>>>>>>>>>>>>>>>> Yes, Q11 and Q13 (and their circuits) set the bias voltage >>>>>>>>>>>>>>>>> for the PA transistors. >>>>>>>>>>>>>>>>> >>>>>>>>>>>>>>>>> It MAY be that the PA transistors are OK, but the low bias >>>>>>>>>>>>>>>>> voltage is what is causing low output on the high bands. >>>>>>>>>>>>>>>>> One thing that may cause the low base voltage is base to >>>>>>>>>>>>>>>>> emitter leakage in the PA transistors. >>>>>>>>>>>>>>>>> >>>>>>>>>>>>>>>>> The gain at the lower bands is greater, and may overcome the >>>>>>>>>>>>>>>>> low bias voltage. >>>>>>>>>>>>>>>>> Check the resistor values in the Q11 and Q13 circuit - see >>>>>>>>>>>>>>>>> the schematic to identify them and their values. >>>>>>>>>>>>>>>>> >>>>>>>>>>>>>>>>> The easiest way to check the bias voltage when the PA >>>>>>>>>>>>>>>>> transistors are suspect is to remove the PA transistors, then >>>>>>>>>>>>>>>>> do a TUNE while measuring the DC voltage on the PA base >>>>>>>>>>>>>>>>> solder pads. >>>>>>>>>>>>>>>>> If it is then OK, put in new PA transistors. >>>>>>>>>>>>>>>>> If still not OK, then look at the Q11 and Q13 circuits. If >>>>>>>>>>>>>>>>> you find all resistor values are correct, replace Q11 and Q13 >>>>>>>>>>>>>>>>> and retest. >>>>>>>>>>>>>>>>> Once the bias voltage is correct, put the PA transistors in. >>>>>>>>>>>>>>>>> >>>>>>>>>>>>>>>>> The K2PAKIT contains a matched pair of PA transistors and >>>>>>>>>>>>>>>>> replacements for Q11 and Q13 as well as some additional parts >>>>>>>>>>>>>>>>> such as PA mounting hardware. >>>>>>>>>>>>>>>>> >>>>>>>>>>>>>>>>> 73, >>>>>>>>>>>>>>>>> Don W3FPR >>>>>>>>>>>>>>>>> >>>>>>>>>>>>>>>>>> On 7/18/2020 1:15 PM, Mike Kopacki wrote: >>>>>>>>>>>>>>>>>> The black washer is not a Shoulder washer. The shoulder >>>>>>>>>>>>>>>>>> washers were both still in the holes. There’s a flat black >>>>>>>>>>>>>>>>>> fiber washer that sits on the top of the brown phenolic >>>>>>>>>>>>>>>>>> standoff. >>>>>>>>>>>>>>>>>> >>>>>>>>>>>>>>>>>> As far as Q7 & Q8 goes, is there a reason why both would be >>>>>>>>>>>>>>>>>> bad? Is it something that I may have caused? >>>>>>>>>>>>>>>>>> >>>>>>>>>>>>>>>>>> I can’t help but wonder if this problem has existed since I >>>>>>>>>>>>>>>>>> built the K2 but never noticed it, maybe because I didn't >>>>>>>>>>>>>>>>>> get on higher bands or just didn’t check the power out, and >>>>>>>>>>>>>>>>>> just assumed that it was the same as the requested power. >>>>>>>>>>>>>>>>>> >>>>>>>>>>>>>>>>>> If it existed since the beginning, then I only see 2 >>>>>>>>>>>>>>>>>> possible explanations- the transistors were both bad when >>>>>>>>>>>>>>>>>> delivered to me (unlikely) or I I caused the problem during >>>>>>>>>>>>>>>>>> assembly, which would be more likely. >>>>>>>>>>>>>>>>>> >>>>>>>>>>>>>>>>>> In that case, I just don’t want to make the same mistake >>>>>>>>>>>>>>>>>> again. >>>>>>>>>>>>>>>>>> >>>>>>>>>>>>>>>>>> Other questions: >>>>>>>>>>>>>>>>>> 1- are Q11 & Q13 the bias transistors? >>>>>>>>>>>>>>>>>> >>>>>>>>>>>>>>>>>> 2- I did not check Q 7 & Q8 in TUNE mode, since the top >>>>>>>>>>>>>>>>>> cover was removed. Instead, I keyed down with my paddles. >>>>>>>>>>>>>>>>>> Would that make a difference? >>>>>>>>>>>>>>>>>> >>>>>>>>>>>>>>>>>> 3- last, if both Q7 & Q8 are bad, why is the power out >>>>>>>>>>>>>>>>>> normal on 20m and below? >>>>>>>>>>>>>>>>>> >>>>>>>>>>>>>>>>>> Thanks, >>>>>>>>>>>>>>>>>> Mike NJ2OM >>>>>>>>>>>>>>>>>> >>>>>>>>>>>>>>>>>>>> On Jul 18, 2020, at 11:42 AM, Don Wilhelm >>>>>>>>>>>>>>>>>>>> <[email protected]> wrote: >>>>>>>>>>>>>>>>>>> That washer has a shoulder on it which fits the hole in >>>>>>>>>>>>>>>>>>> the PA transistor tab. >>>>>>>>>>>>>>>>>>> >>>>>>>>>>>>>>>>>>> 73, >>>>>>>>>>>>>>>>>>> Don W3FPR >>>>>>>>>>>>>>>>>>> >>>>>>>>>>>>>>>>>>>> On 7/18/2020 10:07 AM, Mike Kopacki wrote: >>>>>>>>>>>>>>>>>>>> Don, I forgot to mention that I am not aware of any >>>>>>>>>>>>>>>>>>>> special T-4 windings for 5w efficiency. The manual does >>>>>>>>>>>>>>>>>>>> not mention anything about that in the T-4 winding >>>>>>>>>>>>>>>>>>>> instructions. I did the windings according to the >>>>>>>>>>>>>>>>>>>> instructions 3-2-1-1. >>>>>>>>>>>>>>>>>>>> >>>>>>>>>>>>>>>>>>>> Also I see that the flat black washer goes on top of the >>>>>>>>>>>>>>>>>>>> spacers for Q 7 & 8. >>>>>>>>>>>>>>>>>>>> >>>>>>>>>>>>>>>>>>>> Thanks, >>>>>>>>>>>>>>>>>>>> Mike NJ2OM >>>>>>>>>>>>>>>>>>>> >>>>>>>>>>>>>>>>>>>>>> On Jul 17, 2020, at 5:15 PM, Don Wilhelm >>>>>>>>>>>>>>>>>>>>>> <[email protected]> wrote: >>>>>>>>>>>>>>>>>>>>> Mike, >>>>>>>>>>>>>>>>>>>>> >>>>>>>>>>>>>>>>>>>>> Sorry for the delayed response. >>>>>>>>>>>>>>>>>>>>> >>>>>>>>>>>>>>>>>>>>> Higher RF voltage at those points is not a problem. >>>>>>>>>>>>>>>>>>>>> >>>>>>>>>>>>>>>>>>>>> That is not good. Were the RF voltage values on the base >>>>>>>>>>>>>>>>>>>>> of Q7/Q8 OK? >>>>>>>>>>>>>>>>>>>>> If they were, try rewinding T4 following the instructions >>>>>>>>>>>>>>>>>>>>> in the manual. >>>>>>>>>>>>>>>>>>>>> Is there any chance you wound T4 for "best efficiency at >>>>>>>>>>>>>>>>>>>>> 5 watts"? If so restore the 2:3:1:1 ratio to keep the >>>>>>>>>>>>>>>>>>>>> power from becoming random above 5 watts - it should >>>>>>>>>>>>>>>>>>>>> never be used with the KSB2 or KPA100 installed. >>>>>>>>>>>>>>>>>>>>> >>>>>>>>>>>>>>>>>>>>> You could have bad PA transistors, or the bias is not >>>>>>>>>>>>>>>>>>>>> right. Measure the DC voltage at the base of Q7 or Q8 >>>>>>>>>>>>>>>>>>>>> during a TUNE. If it is not in the range of 0.60 to 0.64 >>>>>>>>>>>>>>>>>>>>> volts, change Q11 and Q13 and recheck. >>>>>>>>>>>>>>>>>>>>> >>>>>>>>>>>>>>>>>>>>> 73, >>>>>>>>>>>>>>>>>>>>> Don W3FPR >>>>>>>>>>>>>>>>>>>>> >>>>>>>>>>>>>>>>>>>>> >>>>>>>>>>>>>>>>>>>>> >>>>>>>>>>>>>>>>>>>>>> On 7/16/2020 6:55 PM, Mike Kopacki wrote: >>>>>>>>>>>>>>>>>>>>>> Sorry, Dan, my bad. >>>>>>>>>>>>>>>>>>>>>> >>>>>>>>>>>>>>>>>>>>>> I continued with the next section - Pre-driver, Driver, >>>>>>>>>>>>>>>>>>>>>> and PA. >>>>>>>>>>>>>>>>>>>>>> >>>>>>>>>>>>>>>>>>>>>> The first 5 steps checked higher than expected. >>>>>>>>>>>>>>>>>>>>>> >>>>>>>>>>>>>>>>>>>>>> The 6th step - RF Detector Input - measured 1.5v and the >>>>>>>>>>>>>>>>>>>>>> expected is 2.0. >>>>>>>>>>>>>>>>>>>>>> >>>>>>>>>>>>>>>>>>>>>> At first that didn’t seem like a big difference so I >>>>>>>>>>>>>>>>>>>>>> decided to repeat that test on all the bands. This is >>>>>>>>>>>>>>>>>>>>>> what I found: >>>>>>>>>>>>>>>>>>>>>> >>>>>>>>>>>>>>>>>>>>>> Band RF voltage >>>>>>>>>>>>>>>>>>>>>> 10 1.4 >>>>>>>>>>>>>>>>>>>>>> 12 1.4 >>>>>>>>>>>>>>>>>>>>>> 15 1.4 >>>>>>>>>>>>>>>>>>>>>> 17 1.8 >>>>>>>>>>>>>>>>>>>>>> 20 2.0 >>>>>>>>>>>>>>>>>>>>>> 30 2.0 >>>>>>>>>>>>>>>>>>>>>> 40 2.0 >>>>>>>>>>>>>>>>>>>>>> 80 2.1 >>>>>>>>>>>>>>>>>>>>>> 160 1.5 >>>>>>>>>>>>>>>>>>>>>> >>>>>>>>>>>>>>>>>>>>>> Thanks, >>>>>>>>>>>>>>>>>>>>>> Mike NJ2OM >>>>>>>>>>>>>>>>>>>>>> >>>>>>>>>>>>>>>>>>>>>>>> On Jul 16, 2020, at 4:21 PM, Don Wilhelm >>>>>>>>>>>>>>>>>>>>>>>> <[email protected]> wrote: >>>>>>>>>>>>>>>>>>>>>>> Mike, >>>>>>>>>>>>>>>>>>>>>>> >>>>>>>>>>>>>>>>>>>>>>> As I indicated, when measuring points prior to the >>>>>>>>>>>>>>>>>>>>>>> fault, you will find higher than expected values. >>>>>>>>>>>>>>>>>>>>>>> Keep going until you find one that is lower than >>>>>>>>>>>>>>>>>>>>>>> expected - that is the stage to look at. >>>>>>>>>>>>>>>>>>>>>>> >>>>>>>>>>>>>>>>>>>>>>> 73, >>>>>>>>>>>>>>>>>>>>>>> Don W3FPR >>>>>>>>>>>>>>>>>>>>>>> >>>>>>>>>>>>>>>>>>>>>>>> On 7/16/2020 3:35 PM, Mike Kopacki wrote: >>>>>>>>>>>>>>>>>>>>>>>> Don, I’ve done the first 5 steps on P. 14, middle of >>>>>>>>>>>>>>>>>>>>>>>> left hand column. >>>>>>>>>>>>>>>>>>>>>>>> >>>>>>>>>>>>>>>>>>>>>>>> Setup >>>>>>>>>>>>>>>>>>>>>>>> - Band 10m, freq 28200.00 >>>>>>>>>>>>>>>>>>>>>>>> - Power requested set to 5.0 >>>>>>>>>>>>>>>>>>>>>>>> - FCTR cable connected to TP2 >>>>>>>>>>>>>>>>>>>>>>>> - .001 mF capacitor across pins 7 & 12 of J11 >>>>>>>>>>>>>>>>>>>>>>>> - DMM - auto range >>>>>>>>>>>>>>>>>>>>>>>> >>>>>>>>>>>>>>>>>>>>>>>> Readings On 4 back to back measurements >>>>>>>>>>>>>>>>>>>>>>>> >>>>>>>>>>>>>>>>>>>>>>>> Step 2 - .110, .104, .070, .076 >>>>>>>>>>>>>>>>>>>>>>>> Step 3 - 1.4v, 1.4v, 1.4v, 1.4v >>>>>>>>>>>>>>>>>>>>>>>> Step 4 - .205, .201, .200, .197 >>>>>>>>>>>>>>>>>>>>>>>> Step 5 - .195, .194, .192, .192 >>>>>>>>>>>>>>>>>>>>>>>> >>>>>>>>>>>>>>>>>>>>>>>> These readings are so far off the expected that I >>>>>>>>>>>>>>>>>>>>>>>> don’t know what they mean. >>>>>>>>>>>>>>>>>>>>>>>> >>>>>>>>>>>>>>>>>>>>>>>> I will stop here until I hear back from you. >>>>>>>>>>>>>>>>>>>>>>>> >>>>>>>>>>>>>>>>>>>>>>>> Thanks, >>>>>>>>>>>>>>>>>>>>>>>> Mike NJ2OM >>>>>>>>>>>>>>>>>>>>>>>> >>>>>>>>>>>>>>>>>>>>>>>>>> On Jul 15, 2020, at 5:51 PM, Don Wilhelm >>>>>>>>>>>>>>>>>>>>>>>>>> <[email protected]> wrote: >>>>>>>>>>>>>>>>>>>>>>>>> Mike, >>>>>>>>>>>>>>>>>>>>>>>>> >>>>>>>>>>>>>>>>>>>>>>>>> OK, now that you have good RF voltage out of the BFO, >>>>>>>>>>>>>>>>>>>>>>>>> you can skip to the tests starting in the middle of >>>>>>>>>>>>>>>>>>>>>>>>> the left column on page 14. >>>>>>>>>>>>>>>>>>>>>>>>> >>>>>>>>>>>>>>>>>>>>>>>>> Use a band where the output is low. If you find RF >>>>>>>>>>>>>>>>>>>>>>>>> Voltage values that are greater than the expected, >>>>>>>>>>>>>>>>>>>>>>>>> ignore them. >>>>>>>>>>>>>>>>>>>>>>>>> You are searching for the stage where the RF voltage >>>>>>>>>>>>>>>>>>>>>>>>> is significantly less (10% or more) less than the >>>>>>>>>>>>>>>>>>>>>>>>> expected value. When you find that point, stop and >>>>>>>>>>>>>>>>>>>>>>>>> tell me where it is (I do not need a list of the good >>>>>>>>>>>>>>>>>>>>>>>>> values). >>>>>>>>>>>>>>>>>>>>>>>>> >>>>>>>>>>>>>>>>>>>>>>>>> 73, >>>>>>>>>>>>>>>>>>>>>>>>> Don W3FPR >>>>>>>>>>>>>>>>>>>>>>>>> >>>>>>>>>>>>>>>>>>>>>>>>>> On 7/15/2020 5:36 PM, Mike Kopacki wrote: >>>>>>>>>>>>>>>>>>>>>>>>>> Now that I’m recovered from yesterday....I think my >>>>>>>>>>>>>>>>>>>>>>>>>> head is clear...I didn’t fully understand your >>>>>>>>>>>>>>>>>>>>>>>>>> directions above. >>>>>>>>>>>>>>>>>>>>>>>>>> >>>>>>>>>>>>>>>>>>>>>>>>>> But I replaced the .001 capacitor across pins 7 & 12 >>>>>>>>>>>>>>>>>>>>>>>>>> of U4. The first capacitor may not have been making >>>>>>>>>>>>>>>>>>>>>>>>>> good contact because the leads may be too short. >>>>>>>>>>>>>>>>>>>>>>>>>> >>>>>>>>>>>>>>>>>>>>>>>>>> It’s Also possible that I had exited CAL FCTR before >>>>>>>>>>>>>>>>>>>>>>>>>> I did the first BFO Output check. >>>>>>>>>>>>>>>>>>>>>>>>>> >>>>>>>>>>>>>>>>>>>>>>>>>> So I redid the BFO Output check with CAL FCTR >>>>>>>>>>>>>>>>>>>>>>>>>> (0000.00 on the display, the FCTR cable was not >>>>>>>>>>>>>>>>>>>>>>>>>> connected at TP2) and got a value midrange - 51mV. >>>>>>>>>>>>>>>>>>>>>>>>>> So I think that check now passes. >>>>>>>>>>>>>>>>>>>>>>>>>> >>>>>>>>>>>>>>>>>>>>>>>>>> Now, to your last instructions... >>>>>>>>>>>>>>>>>>>>>>>>>> Are you saying to do DC voltage checks on Q24 with a >>>>>>>>>>>>>>>>>>>>>>>>>> DMM ..... or RF voltage checks with the RF probe? >>>>>>>>>>>>>>>>>>>>>>>>>> And should I also be in the CAL FCTR menu displaying >>>>>>>>>>>>>>>>>>>>>>>>>> the frequency as I described above while I am >>>>>>>>>>>>>>>>>>>>>>>>>> checking the Q24 voltages? >>>>>>>>>>>>>>>>>>>>>>>>>> >>>>>>>>>>>>>>>>>>>>>>>>>> Last, you said to then continue with the transmitter >>>>>>>>>>>>>>>>>>>>>>>>>> signal tracing on P. 11. But, as I said earlier, I >>>>>>>>>>>>>>>>>>>>>>>>>> already did the BFO checks on P. 11. That’s all the >>>>>>>>>>>>>>>>>>>>>>>>>> transmitter checks I thought you meant for me to do. >>>>>>>>>>>>>>>>>>>>>>>>>> Are you saying now to continue with all the checks >>>>>>>>>>>>>>>>>>>>>>>>>> AFTER the BFO checks. >>>>>>>>>>>>>>>>>>>>>>>>>> >>>>>>>>>>>>>>>>>>>>>>>>>> I apologize for the long email but I am anal about >>>>>>>>>>>>>>>>>>>>>>>>>> communication and need to be sure I’m doing what you >>>>>>>>>>>>>>>>>>>>>>>>>> intend for me to do. :) >>>>>>>>>>>>>>>>>>>>>>>>>> >>>>>>>>>>>>>>>>>>>>>>>>>> Thanks, >>>>>>>>>>>>>>>>>>>>>>>>>> Mike NJ2OM >>>>>>>>>>>>>>>>>>>>>>>>>> >>>>>>>>>>>>>>>>>>>>>>>>>>>> On Jul 14, 2020, at 4:08 PM, Don Wilhelm >>>>>>>>>>>>>>>>>>>>>>>>>>>> <[email protected]> wrote: >>>>>>>>>>>>>>>>>>>>>>>>>>> Mike, >>>>>>>>>>>>>>>>>>>>>>>>>>> >>>>>>>>>>>>>>>>>>>>>>>>>>> Do DC voltage checks on Q24. Make certain you were >>>>>>>>>>>>>>>>>>>>>>>>>>> in CAL FCTR while checking the RF voltage, >>>>>>>>>>>>>>>>>>>>>>>>>>> otherwise the Q24 drain voltage will be small. >>>>>>>>>>>>>>>>>>>>>>>>>>> Once you resolve that, you can skip to page 11 and >>>>>>>>>>>>>>>>>>>>>>>>>>> do the Transmit Signal >>>>>>>>>>>>>>>>>>>>>>>>>>> Tracing. Make certain you put a .001uF capacitor >>>>>>>>>>>>>>>>>>>>>>>>>>> between pins 7 and 12 of J11. >>>>>>>>>>>>>>>>>>>>>>>>>>> >>>>>>>>>>>>>>>>>>>>>>>>>>> 73, >>>>>>>>>>>>>>>>>>>>>>>>>>> Don W3FPR >>>>>>>>>>>>>>>>>>>>>>>>>>> >>>>>>>>>>>>>>>>>>>>>>>>>>>> On 7/14/2020 3:12 PM, Mike Kopacki wrote: >>>>>>>>>>>>>>>>>>>>>>>>>>>> Ok...... >>>>>>>>>>>>>>>>>>>>>>>>>>>> >>>>>>>>>>>>>>>>>>>>>>>>>>>> I did all the transmitter signal tracing steps, >>>>>>>>>>>>>>>>>>>>>>>>>>>> step 1 through 13. >>>>>>>>>>>>>>>>>>>>>>>>>>>> >>>>>>>>>>>>>>>>>>>>>>>>>>>> Step 5 sends you to the Receiver Signal Tracing >>>>>>>>>>>>>>>>>>>>>>>>>>>> procedure. >>>>>>>>>>>>>>>>>>>>>>>>>>>> >>>>>>>>>>>>>>>>>>>>>>>>>>>> I did all 10 steps of the Receiver preparation and >>>>>>>>>>>>>>>>>>>>>>>>>>>> all 5 steps of the PLL reference oscillator and >>>>>>>>>>>>>>>>>>>>>>>>>>>> VCO procedures. >>>>>>>>>>>>>>>>>>>>>>>>>>>> >>>>>>>>>>>>>>>>>>>>>>>>>>>> I then did the 4 steps of the BFO procedure. >>>>>>>>>>>>>>>>>>>>>>>>>>>> >>>>>>>>>>>>>>>>>>>>>>>>>>>> Of all the steps mentioned above, the only one >>>>>>>>>>>>>>>>>>>>>>>>>>>> that I could not get the expected value was step 3 >>>>>>>>>>>>>>>>>>>>>>>>>>>> of the BFO procedure - BFO Buffer Output. The >>>>>>>>>>>>>>>>>>>>>>>>>>>> expected value range is listed as 0.025-0.070 Vrms. >>>>>>>>>>>>>>>>>>>>>>>>>>>> >>>>>>>>>>>>>>>>>>>>>>>>>>>> That’s 25mV - 70mV. >>>>>>>>>>>>>>>>>>>>>>>>>>>> >>>>>>>>>>>>>>>>>>>>>>>>>>>> My reading was less than 1mV - .000-.001. >>>>>>>>>>>>>>>>>>>>>>>>>>>> >>>>>>>>>>>>>>>>>>>>>>>>>>>> I’m assuming that I checked it correctly. I had no >>>>>>>>>>>>>>>>>>>>>>>>>>>> problems checking all the steps, except for U4 >>>>>>>>>>>>>>>>>>>>>>>>>>>> pin1 which was very difficult to get to because of >>>>>>>>>>>>>>>>>>>>>>>>>>>> the two pc boards above U4 that are attached to >>>>>>>>>>>>>>>>>>>>>>>>>>>> the control board. >>>>>>>>>>>>>>>>>>>>>>>>>>>> >>>>>>>>>>>>>>>>>>>>>>>>>>>> Thanks, >>>>>>>>>>>>>>>>>>>>>>>>>>>> Mike NJ2OM >>>>>>>>>>>>>>>>>>>>>>>>>>>> >>>>>>>>>>>>>>>>>>>>>>>>>>>>>> On Jul 14, 2020, at 1:40 PM, Don Wilhelm >>>>>>>>>>>>>>>>>>>>>>>>>>>>>> <[email protected]> wrote: >>>>>>>>>>>>>>>>>>>>>>>>>>>>> Mike, >>>>>>>>>>>>>>>>>>>>>>>>>>>>> >>>>>>>>>>>>>>>>>>>>>>>>>>>>> You can skip most of the RX tracing, but do >>>>>>>>>>>>>>>>>>>>>>>>>>>>> verify that the VFO and BFO are working correctly. >>>>>>>>>>>>>>>>>>>>>>>>>>>>> The 5v and 8v regulators are on the control board >>>>>>>>>>>>>>>>>>>>>>>>>>>>> - lower right corner with the front of the K2 >>>>>>>>>>>>>>>>>>>>>>>>>>>>> facing you. >>>>>>>>>>>>>>>>>>>>>>>>>>>>> >>>>>>>>>>>>>>>>>>>>>>>>>>>>> 73, >>>>>>>>>>>>>>>>>>>>>>>>>>>>> Don W3FPR >>>>>>>>>>>>>>>>>>>>>>>>>>>>> >>>>>>>>>>>>>>>>>>>>>>>>>>>>>> On 7/14/2020 1:22 PM, Mike Kopacki wrote: >>>>>>>>>>>>>>>>>>>>>>>>>>>>>> Step 5 of the transmitter signal tracing process >>>>>>>>>>>>>>>>>>>>>>>>>>>>>> says to go back and do all the receiver signal >>>>>>>>>>>>>>>>>>>>>>>>>>>>>> tracing. >>>>>>>>>>>>>>>>>>>>>>>>>>>>>> >>>>>>>>>>>>>>>>>>>>>>>>>>>>>> Should I do all that? Step 2 of that process >>>>>>>>>>>>>>>>>>>>>>>>>>>>>> says to check the 5v and 8v regulator outputs. >>>>>>>>>>>>>>>>>>>>>>>>>>>>>> >>>>>>>>>>>>>>>>>>>>>>>>>>>>>> I don’t know what that refers to. >>>>>>>>>>>>>>>>>>>>>>>>>>>>>> >>>>>>>>>>>>>>>>>>>>>>>>>>>>>> Thanks, >>>>>>>>>>>>>>>>>>>>>>>>>>>>>> Mike NJ2OM >>>>>>>>>>>>>>>>>>>>>>>>>>>>>> >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> On Jul 14, 2020, at 11:08 AM, Don Wilhelm >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> <[email protected]> wrote: >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> Mike, >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> The jumpers can be bent wire - they go into >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> pins 1 and 3 - the outer pins of the header. >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> 73, >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> Don W3FPR >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> On 7/14/2020 8:57 AM, Mike Kopacki wrote: >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> The first step in signal tracing is to remove >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> the KSB2 board and install jumpers at J9 & J10. >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> What does that mean? They both have 3 pins. >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> Where do the jumpers go? >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> Thanks, >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> Mike NJ2OM >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> On Jul 13, 2020, at 5:37 PM, Don Wilhelm >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> <[email protected]> wrote: >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> Mike, >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> If you are seeing a .5 volt drop at the low >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> current for receive, check the connections to >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> the power supply. Make sure all connections >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> are tight - finger tight is not good enough. >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> I am sure there is much more drop in transmit >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> and a likely reason for the 160m HiCur. >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> The way the K2 controls power, if the voltage >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> is low, more current must be drawn to >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> maintain the proper power output. >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> Yes, do the steps in the Transmit Signal >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> Tracing. Do it first on 40 meters, like the >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> manual says (it will likely be OK), but then >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> repeat on one of the bands giving lower >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> output than the requested power setting. You >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> will have to set the power above the actual >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> power output, do it so you will be able to >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> see the failure point. >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> 73, >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> Don W3FPR >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> On 7/13/2020 4:44 PM, Mike Kopacki wrote: >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> CAL CUR has always been set to 3.5. >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> L1 and L2 on the 160m board have the correct >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> number of turns. >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> I checked RFC3, 11, 14 & 16. All have the >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> correct number of turns and continuity >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> (checked from the non-component side of the >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> board). >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> Supply voltage is 13.82. Voltage at the end >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> of the P/S cable Is 13.82. >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> K2 shows 13.3v in receive mode. Is this a >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> clue? >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> There is no change in power output on the >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> higher bands. >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> I found a procedure called “Preparation for >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> Transmitter Signal Tracing” in Appendix E. >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> I will start on that next. >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> Thanks, >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> Mike NJ2OM >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> On Jul 13, 2020, at 3:19 PM, Mike Kopacki >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> <[email protected]> wrote: >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> I touched up the solder on RFC3 although I >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> didn’t think that was the problem because I >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> measured 7.84v from the gate of Q2. >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> I have a new problem - when I removed the >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> bottom panel so I could resolver RFC3, a >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> 1/4” black washer fell out from somewhere. >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> I’ve been through the parts list several >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> times but don’t see it listed. >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> I want to put the bottom rear panel back on >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> but I’m hesitating because if the washer >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> issue. >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> Thanks, >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> Mike NJ2OM >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> On Jul 12, 2020, at 7:48 PM, Don Wilhelm >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> <[email protected]> wrote: >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> Mike, >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> That is great! >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> Set CAL CUR to 3.5 amps. It takes a bit >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> more than 2.5 amps on 160 meters, the >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> HiCur should go away. If it does not, >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> check the Low Pass Filter on the K160RX >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> board - count the toroid turns carefully. >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> The falloff of power output on bands 20 >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> meters and up is likely a fault in the T/R >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> switch - refer to the schematic and check >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> each of the RFCs for continuity. In >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> particular, check RFC3 (a toroid) for good >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> leads that are well soldered - you should >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> see a bit of tinned wire on the toroid >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> side of the board. >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> If you cannot find the problem, you will >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> have to do the Transmit Signal Tracing >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> listed in appendix E of the manual. Use 15 >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> meters instead of the 40 meters >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> recommended. >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> When you find the actual RF voltage is >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> substantially less than the Expected >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> value, you have found the failing stage. >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> Since the K2 cannot develop full power >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> output, you can ignore the RF voltages >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> that are greater than the Expected value. >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> The low power stages will increase the >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> drive to try to increase the output - that >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> is normal behavior. >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> 73, >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> Don W3FPR >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> On 7/11/2020 1:27 PM, Mike Kopacki wrote: >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> After a lot of realigning, I believe I’ve >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> gotten it back to where it was before I >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> started working on it. >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> With a requested power of 10.0, these are >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> the current Po readings according to the >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> K2’s internal wattmeter when read in the >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> TUNE mode: >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> Band Po >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> 10 2.7 >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> 12 3.3 >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> 15 4.3 >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> 17 5.3 >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> 20 8.3 >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> 30 10.0 >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> 40 10.0 >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> 80 10.5 >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> 160 HiCur >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> Thanks, >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> Mike NJ2OM >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> On Jul 11, 2020, at 11:35 AM, Mike >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> Kopacki <[email protected]> wrote: >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> I have disconnected the top cover of >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> the K2 and gone through the bandpass >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> filter alignments. >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> It’s a frustrating exercise because the >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> values never remain consistent. >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> For example, using 40 meters as an >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> example, I adjust L1 and the K2 >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> wattmeter shows a power out of 2.7. >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> Then I go to adjust L2, but when I enter >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> TUNE mode, the wattmeter reads now 2.1. >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> So I adjust L2 to it’s highest value, >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> say 2.4. >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> When I go back to adjust L1 again and >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> enter TUNE, it reads 2.0. >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> So I am constantly adjusting for Max >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> output, only to find the value that I >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> just reached to be different when I >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> adjust the next inductor (or capacitor). >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> Very frustrating. >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> Also, the power out drifts upwards as >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> long as it is in TUNE mode. So it might >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> be 2.1 when I start tuning, but 10 >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> seconds later it might be 2.7. >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> Which value is the correct one? >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> Thanks, >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> Mike NJ2OM >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> On Jul 10, 2020, at 6:04 PM, Don >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> Wilhelm <[email protected]> wrote: >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> Mike, >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> Sorry, but I thought you had the top >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> cover off the base K2 and all cables to >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> the top cover disconnected. >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> That is normally the best way to get to >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> the components on the RF board for >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> measurement. >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> What you describe is normal if you have >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> the KAT2 (or KPA100) installed. >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> Put it in that configuration for >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> troubleshooting, and the BNC connector >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> on the lower panel is the proper place >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> to connect the dummy load for testing. >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> Once the problem with the base K2 has >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> been resolved, you can go back to the >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> normal configuration. >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> 73, >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> Don W3FPR >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> On 7/10/2020 5:36 PM, Mike Kopacki >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> wrote: >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> Don I am back at it. You said to >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> connect the dummy to the BNC connector >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> on the back of the K2. >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> There are 3 BNC connectors- ant1, ant2 >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> and the 50 ohm ant. >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> I ask because I get what appears to be >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> normal wattmeter readings when I >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> connect to ant1 but the wattmeter pegs >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> at max range when connected to the 50 >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> ohm BNC connector. >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> Thanks, >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> Mike NJ2OM >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> On Jul 2, 2020, at 2:03 PM, Don >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> Wilhelm <[email protected]> >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> wrote: >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> Mike, >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> That indicates RFC3 is OK. >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> 73, >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> Don W3FPR >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> On 7/2/2020 1:51 PM, Mike Kopacki >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> wrote: >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> Q2’s gate measures 7.84V to ground. >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> Thanks, >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> Mike NJ2OM >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> On Jul 1, 2020, at 10:14 PM, Mike >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> Kopacki <[email protected]> >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> wrote: >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> No. My dummy load is not good, >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> I found out. I just ordered a new >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> one. >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> Thanks, >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> Mike NJ2OM >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> On Jul 1, 2020, at 9:56 PM, Don >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> Wilhelm <[email protected]> >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> wrote: >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> Mike, >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> Are you operating into a good 50 >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> ohm dummy load - connected to the >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> base K2 BNC jack with the KPA100 >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> physically removed? >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> If not, that may be the reason for >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> the HiCur messages. >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> 73, >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> Don W3FPR >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> On 7/1/2020 8:18 PM, Mike >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> Kopacki wrote: >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> Yep I know the HiCur means a >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> problem. But I didn’t have that >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> message before. I was able to >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> rotate the power knob all the way >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> and get 12.2 out. So I can’t >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> understand why the problem only >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> occurred after I start >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> realignment. >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> I followed the steps - in order - >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> from the manual. >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> I found RFC3 and Q2. Which pin is >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> referred to as the gate - >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> emitter, base or collector? >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> Thanks, >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> Mike NJ2OM >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> On Jul 1, 2020, at 7:32 PM, Don >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> Wilhelm >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> <[email protected]> wrote: >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> Mike, >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> The HiCur messages say that you >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> have some other problem in that >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> K2. >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> You should do all the tuning in >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> TUNE mode (which is CW >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> transmit). If you cannot see a >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> peak on the power output, use an >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> RF Probe placed at W6 and tune >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> for maximum RF voltage. For >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> that, you can set the power to >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> zero. >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> Did you do the bandpass filter >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> alignment only in transmit? If >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> you tried it in receive first, >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> that may have thrown you off - >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> use transmit, it is more obvious >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> when the peak occurs. >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> Align 40 meters first, then 80 >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> (and 160 if you have the K160RX >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> option - you may have to >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> compromise between the inductor >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> settings for the 2 bands). Then >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> align the inductors for 30 >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> meters, then the capacitor >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> trimmers for 20m. Then adjust >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> the inductors for 15 meters, and >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> the trimmer capacitors for 17 >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> meters. Lastly, align the >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> inductors for 10 meters, and >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> then the trimmer capacitors for >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> 12 meters. >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> Failure to follow that band >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> order (inductors first, then >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> trimmer capacitors) will result >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> in failure. >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> RFC3 is located quite near the >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> rear panel toward the right as >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> you look with the front panel >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> facing you. You can check for a >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> bad RFC3 by measuring the >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> voltage at the gate of Q2 during >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> receive - it should be near 8 >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> volts. >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> 73, >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> Don W3FPR >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> On 7/1/2020 5:34 PM, Mike >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> Kopacki wrote: >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> Don, it’s been a helluva >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> afternoon. I realigned the band >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> pass filters, following the K2 >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> manual. >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> I ended up losing max output on >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> all bands. >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> For example, prior to >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> realigning I was able to get >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> 12.2w out on 40 meters when I >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> adjusted the power knob to 15.2 >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> watts. Now, I can’t get past >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> 8.7 without getting a high >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> current message. >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> Also I couldn’t find RFC3. >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> It was a lot of years ago that >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> I built the K2 but I don’t >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> remember having this much >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> problem with the alignments. >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> Each time I adjust L1 or L2, >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> when I tune again the output is >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> different. It’s never where I >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> left it after the last >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> adjustment. >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> I’ve had enough for today. I’ll >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> pick it up tomorrow although I >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> don’t know what to do >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> differently. >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> Thanks, >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> Mike NJ2OM >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> On Jul 1, 2020, at 3:03 PM, >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> Don Wilhelm >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> <[email protected]> >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> wrote: >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> Mike, >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> I have seen a few K2s that >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> have power falloff at 20 >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> meters and above due to a >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> broken lead on RFC3. Check >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> yours to make certain both >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> leads have been well stripped >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> and soldered - you should see >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> a bit of tinned wire above the >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> board. >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> 73, >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> Don W3FPR >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> On 7/1/2020 1:19 PM, Mike >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> Kopacki wrote: >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> Don, I decided to check the >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> maximum power output before >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> making any changes to the >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> band pass filters. I got the >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> following results: >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> Band Po (watts) >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> 10m - 2.2 >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> 12m - 3.1 >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> 15m - 4.4 >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> 17m - 5.6 >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> 20m - 7.2 >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> 30m - 13.2 >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> 40m - 12.2 >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> 80m - 12.2 >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> Does this indicate that the >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> band pass filters for 10-20 >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> meters need to be realigned? >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> I will review the K2 manual >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> on how to do that while I >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> wait for your answer. >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> And if I haven’t said it yet, >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> I can’t thank you enough for >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> helping. It’s great to have >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> someone who’s “in the know” >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> when you need help! >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> Thanks, >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> Mike NJ2OM >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> On Jul 1, 2020, at 11:55 >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> AM, Mike Kopacki >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> <[email protected]> >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> wrote: >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> Don, it looks like you >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> replied only to me. I was >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> getting concerned about all >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> the other replies and really >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> only want to work with you >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> to resolve the issue. >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> If that’s ok, we’ll continue >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> with private emails. When >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> it’s all over, I will update >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> the group. >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> Thanks, >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> Mike NJ2OM >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> On Jul 1, 2020, at 11:31 >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> AM, Don Wilhelm >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> <[email protected]> >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> wrote: >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> Mike, >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> Methodical testing done >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> properly will reveal the >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> source of your problem. >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> Much better than guessing >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> and trying to do things out >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> of order. >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> Yes, completely remove the >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> KPA100. Unplug the cables >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> and set it aside. >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> Yes, the bandpass filters >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> are on the RF board. Do >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> check the alignment at 2 >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> watts output - be certain >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> to follow the band order >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> listed in the manual. >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> Then check to be sure the >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> maximum power is at least >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> 10 watts on all bands - if >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> not, find the problem. The >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> actual maximum power may go >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> as high as 15 watts - >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> record the power for each >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> band. >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> Then put the KPA100 back on >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> and with power applied to >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> the base K2 only, check the >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> power output from the >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> KPA100 ANT jack. It should >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> be almost the same as you >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> recorded with the base K2 >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> only. If not, you have a >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> problem in the KPA100 Low >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> Pass Filter. >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> If that is all good, the >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> base K2 should drive the >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> KPA100 to at least 100 >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> watts output (into a dummy >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> load) if your power supply >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> voltage is at least 12.6 >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> volts during transmit (as >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> displayed by the K2). >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> If you show less than 12.6 >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> volts on the K2 display, >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> then check your power >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> supply and the connecting >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> power cable at full >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> transmit power. >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> 73, >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> Don W3FPR >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> On 7/1/2020 8:34 AM, Mike >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> Kopacki wrote: >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> Don, this is what you sent >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> earlier: >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> “If the power supply >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> voltage is not the >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> problem, then remove the >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> KPA100 from the base K2 >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> and realign the bandpass >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> filters. Connect a dummy >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> load to the base K2 BNC >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> ANT jack. After that, >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> check the maximum power >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> from the base K2 - you >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> should have at least 10 >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> watts on each band. >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> Record the power for each >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> band.“ >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> To be clear, are you >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> saying to disconnect all 3 >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> connections between the K2 >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> and the KPA-100? If there >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> is 10+ watts out on each >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> band, do I need to realign >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> the band pass filters? >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> And I assume those would >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> be on the K2-RF board, >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> right? >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> Thanks, >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> Mike NJ2OM >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> > ______________________________________________________________ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:[email protected] This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to [email protected]
