Re: [Elecraft] K2 alignment problem at 10/12m

2010-07-31 Thread Don Wilhelm
> ...any ideas anyone? > > Thanks again, > > Andy > G7UHN > > ---------- > From: "Don Wilhelm" > Sent: Monday, July 05, 2010 11:13 PM > To: "Andy Webster" > Cc: > Subject: Re: [Elecraft] K2 alignment pr

Re: [Elecraft] K2 alignment problem at 10/12m

2010-07-31 Thread Alexey Kats
You should hear relay clicks because they are switching trimming capacitors in and out when you switch between 10m and 12m. Out of curiosity, could it be a faulty relay somewhere in the band pass filter area? If it cannot connect both trimming capacitors to the filter when you switch to 12m it migh

Re: [Elecraft] K2 alignment problem at 10/12m

2010-07-31 Thread Andy Webster
: "Andy Webster" Cc: Subject: Re: [Elecraft] K2 alignment problem at 10/12m > Andy, > > Are you peaking the inductors for 10 meters before you peak the trimmers > on 12 meters? That is the required order for the bandpass filters - of > the band pairs, the inductors

Re: [Elecraft] K2 alignment problem at 10/12m

2010-07-05 Thread Don Wilhelm
Andy, Are you peaking the inductors for 10 meters before you peak the trimmers on 12 meters? That is the required order for the bandpass filters - of the band pairs, the inductors must be peaked first and then the capacitors. On your 10 meter problem, check all the components in the Low Pass

[Elecraft] K2 alignment problem at 10/12m

2010-07-05 Thread Andy Webster
Hello all, First up I'd like to say what a superb kit the K2 is, I've really enjoyed the time spent quietly soldering away and the instructions are first class with some great finishing touches (all the resistors in sequence on a custom strip - what will they think of next!). It's a shame it's

[Elecraft] K2 alignment problem

2009-12-15 Thread af4lb
I have recently completed phase III build of my K2 and started the alignment process. > A couple of problems developed during the alignment so I went back > and started re-checking phases I and II resistance and voltage checks. > During the initial construction of these two phases all of t

Re: [Elecraft] K2 alignment problem 20m and 17m

2009-06-14 Thread Don Wilhelm
Guido, I would first look at the bandpass filter - on 20 meters, capacitors C28 and C29 and trimmers C21 and C23. The symptoms sound like a bad solder connection. For the 17 meter problem, check trimmer capacitors C32 and C34. If that does not produce results, then check the VFO frequency whe

[Elecraft] K2 alignment problem 20m and 17m

2009-06-13 Thread DM1GP - Dr. Guido Pelz
Dear K2 specialists, I recently finished my K2 with (more or less) no problems. Everything is fine, expect the transmitter alignment for 17m and 20m. Here are the symptoms found while doing the alignment with 2W output in tune mode: 1. On 20m, the output power is rapidly changing between 0.1 an

[Elecraft] K2 Alignment Problem Still Unsolved...

2008-05-09 Thread Jay
Still trying to align the filters on my K2, but was getting no indication the Frequency Counter Probe Assembly was working. So I ordered a new and and still nothing (when touching the side of C22, when doing Cal Fctr or Cal Fil). Removed the DSP filter, AF filter and Control Board. Cleaned a

[Elecraft] K2 Alignment problem

2008-04-29 Thread Jay
Still trying to adjust my SSB Filters. First it was INFO 230. I plugged in the probe and it worked the first attempt. Then when I the next day to continue git'r done I keep getting INFO 230 on CAL FIL, CAL FCTR, and it will not read anything touching the side of C22. I took the probe apart a