Hi Roger! Well done! You are booming into Biggleswade! You used to be in the -20db and below zone now its -11 and better. Uber QRO and you make me look very QRPp!! My problem is down to lack of verti
Hi John I'll have a look see. I've noticed on strong sigs from me (few and far between!) I get multiple decodes +50 and -50. I'm not aware of any obvious mains hum if I monitor my outgoing sigs and a
LF Sidebands are back! I think its caused by my TX getting hot and bothered by struggling at 500. From cold it txs 50 watts but this soon drops back to around 35, and the sidebands appear. My sigs ar
Hi Mal 137 is my next project though I am not really Dx from you. If I get a Tx set up I’ll let you know for a CW QSO or two With best regards Jim Subject: LF: 137 DX LF GRP Is there enought ac
Hi Pete The Rig only gets overly hot on powers over abt 20 watt output and 20%+ duty cycle (not to be unexpected given the operation at or beyond the limits of design). When I run it around 10 to 15
Dear LF At a stroke, side bands gone, 25watts found, sigs increased! I’d like to say I planned it that way but sister Serendipity was on my side! I just moved the impedance matching transformer
Hi Rik That's exactly what mine are. I think it's a mixture of stretching the Pa on the IC735 so its at the edge of its envelope (the radio equivalent of a stick shaker or stall horn on a plane!) and
May have spoken too soon, was fiddling with input levels on last tx and got a few extras. May be partly also due to overdrive. Will turn wick down on next set With best regards Jim Dr. James Cowburn
Dear LF At a stroke, side bands gone, 25watts found, sigs increased! I’d like to say I planned it that way but sister Serendipity was on my side! I just moved the impedance matching transformer
Hi Andy I suspect its my drifty IC735! Poor old girl! With best regards Jim --Original Message-- From: [email protected] [mailto:[email protected]] On Behalf Of Andy
The soundcard leads are via an opto-isolator interface and the leads from the interface to laptop are wound on ferrite cores, approx 8 turns each for tx and rx. I will check the mains psu for the del
Hi Roger/LF The discussion at the RSGB meeting noted the ARRL’s position that essentially if two stations make WSPR reports with each other and this is confirmed by QSL or sme other approved me
How do you know they are unattended? Jim --Original Message-- From: [email protected] [mailto:[email protected]] On Behalf Of mal hamilton Sent: 21 November 2009 14:
Hi All, The vertical 5m section of my inverted L runs up into the branches of a silver birch tree. The wire goes over a large bough at 5m or so and then comes out of the branches for some 22m down to
Well done Chris!! With best regards Jim Dr. James Cowburn From: [email protected] [mailto:[email protected]] On Behalf Of Chris Osborn Sent: 08 November 2009 18:03 T
Hi Dennis I did not realize I was causing you QRM. A quick e-mail would have alerted me to it, rather than me being a “pain”. I’m happy to work out a compromise where we operate at
Hi Alan Thanks for the pointers here. Very useful. As it transpires, the laptop psu is now interfering on Rx so a loop has opened up somewhere. I'm going to dismantle the whole set up and re-wire/rer
Hi Dennis Not offended at all, more alarmed and disappointed that I have been causing you problems and grief. As the “new boy to the band” I did not realize I was operating on top of your
