You can set the sort order of messages? Just click on the link in the date column. Your preferences will be remembered, so you don't have to do it again when you return.
OK the kit is completed and works OK on receive so far. However the display doesn't. The display shows two lines of blocks when contrast is turned up but...
I cannot get any audio although the initial voltage checks are as spec and since fitting the display anyway I have set it up ok but still no audio obviously. ...
... I am assuming that you have wound contrast pot thru full range? ... The only issue I have had it the past (with PICs) that presented symptoms like yours is...
... When you say no audio - do you mean: You cannot hear any signals with an antenna connected ( or sig gen etc) or The audio stage itself has no output? i.e....
Paul, Yes I swung the pot thru its range and am able to dim the blocks. I only said this to illustrate that two lines were available on the display. I assumed...
Pleased to have got my first QSO with the little rig last night... I spent most of yesterday squeezing in an 80 meter dipole which took some time. It's not...
... Can't offer any suggestion other than the broken track didn't perhaps go back right.. One thing I can do is having just changed my display to a back lit...
Hi Rob, I guess the problem is related to the drilling of the vias but like you I have previously repaired these with single strands of wire through the PCB. ...
I assumed this was because the enable line was activated, else I thought it defaulted to one line. ... Ok, well I would suggest that you look with your CRO at...
I_m nearly done with the build up and everything seems to be ok -so far. voltages look ok. But, the display shows frequency "000,000 12,3V U " No matter...
Im not sure what you mean by "No matter how often i turn the regulators". It looks as the micro is not getting the VFO signal, if you can reveive stations...
Hi Steve, Yes, I built the kit as standard and have yet to attach the varactor mod etc. I finally broke the pads completely off the board removing a header...
Hi Paul, This is now not necessary, I unfortunately broke the pads removing a plug from the header. So now the leads are directly soldered to the ic socket...
Thanks for the offer Philip. I also have a backlit blue display waiting to be used when I finally have things fully working and I'm about to box up. Rob...
Rob, If you have a repetitive wave form on the display / micro pins it sounds as though the micro is waiting for the display to be ready for the next byte of...
I agree with Pauls test method - put your finger under the pins of the LM386, do you get audio? IE hissing, pops or squeals? If not check the voltages on all...
Steve, Somewhat messed up now! In an attempt to double check the pic I repaired my programmer and progged a couple of 16f84s. They worked and checked out OK...
Can someone PLEASE send me a good link tfor the MKARS80 Varactor tuning mod with the 10 turn pot? Thanks. (SRI to ask this way, I am trying to recover lost ...
OK, from that then we work out the PIC is at fault? Do you want another, but it won't get to you till Monday / Tuesday? If so please send me your address by...
I used the info on that link to mod mine a couple of days ago Works very well an makes the tuning a dream... I used an MVAM109 varicap on my mod...works...
Thanks for the tips Gents. It's late here, I don't have my MKARS schematic in front of me. But I just briefly went to the PA0RCL site. WOW, lots of spiffy...
Hi Steve, Looking thru the specs for the 818 it appears its my programmer. 818 can do mclr as either adcin or output and mclr needs raising after vpp to set...
Had a couple of reports that my signal would be more readable if the mic had less bass and more treble... It's a cheap electret insert from Maplin.. Any ideas...
Philip, Before you look for an audio cure its wise to check your BFO frequency is 10MHz. How does it sound on receive? When the BFO is adjusted correctly the...
Hi Steve.... Hadn't thought about that. Received signals sound OK but I will be sure to double check that. To be honest, out of the few QSO's I've had so far,...
Steve I've tweaked the BFO to exactly 10Mhz by loose coupling it to my SDR receiver which has been calibrated zero beat to a time signal. It was out by a...
