Hi Gary The Si4734 is a very clever and complex chip at the digital and engineering level and has many facets. However the designers have been able to remove most of the complexity for the person

Thank you Scott for the very clear answer about the calculation. I will put that routine into my software on a small panel with a text box and a command button. When the button is pressed it will tune

 I just checked the Litz wire on the stock PL380coil. It has 15 strands. The micrometer reads one strand as between 2.5 and 3.0mils. From the wire table, #42 is 2.5, #41 is 2.8 and #40 3.1 mils.

I did the same PL380 stock loopstick rewind today.I'd previously failed to remove the loopstick, and was close to breaking it whenI stopped trying to pry it out. I tried again today, using a 1/4"

One new log at sunset tonight on the PL-310: 810 WPIN. Dublin VA, 1715 on 1-16, classic country, "I-81 Country, Real Country for the New River Valley, this is WPIN" mixing with WGY. A new one for

There are 5 more new DSP radios on ebay which look like they might be ULR's. DEGEN DE 15, DE 17, DE 1123, DE 1125. Kchibo KK-D202 Has anyone tried any of these?

Scott and Roy, Your discussion of the software commands to the Si4734 commands is veryimpressive, and I wish that I could follow what is being discussed.Unfortunately my Navy technical training in

Roy, The calculation I use is pretty straightforward. The idea is that I assume inductance L is constant across the band and measure the resonating capacitance at two frequencies. I end up with

Hi Steve, Great job on your "stealth modified" PL-380. I think we both agree that aslong as a great LW sensitivity boost is obtained, we'll be happy to DX withthe radio, even if the coil has a lower

Hi Scott Thank you for all your input, we are all privileged to have your knowledge and experience in this group. Are you able to share how your calculations work for calculating inductance from

Richard and Gary: When i lived in Oklahoma,i received a station in NASHWAUK ,MN on 650 at local noon one January.This was on a Super Radio 2.I believe this was a distance over 800 miles.Besides MN,i

hi Bruce, you just said the magic word "reset", i pulled the batteries out, let it set, put em back in and Shazaam. i've got 10 khz step rate back again. Thanks. byron

Hi Gary! I tried your recommendation of using the 2010 readout to allow orientation and peaking of the 27" monster ferrite, then bringing the 380 into proximity without altering 27"er rotational or

I had an M40W that reverted to 9kHz tuning in 1989. I couldn't find any way to reset it back other than putting the AA(?) batteries in backwards and turning the radio on for a second. It worked, but

Hi Gary and Alex Thank you for your generous comments regarding the dx report. Gary : Good to read about your reception of 1610 Caribbean Beacon. The station can get through quite regularly at

Gary, Thanks for sharing your many experimental results with us. The results that you and others in the group have reported are fascinating. I have some experiments of my own to share, but haven't

Hello All, As reported in a recent Ultralightdx post, a Tecsun PL-380 model received aserious AM sensitivity boost by replacing the Chinese Litz wire on the stockferrite bar with high-quality 40/44

Hi Scott, Thanks again for your observations, and I certainly concur that theloopstick experimentation with the Si4734 models is fascinating. Your expertcomments are certainly appreciated, as well

Lee, how do you support those loops? AFAIK, no one in the States, UK or anywhere else is importing the newer Tecsuns or re-branding them, as with the G8. 73, Jim, KR1S http://qrp.kearman.com/

Lee, Sorry, but as yet, the PL-380 is only available from sources in China,mostly Joyce at Anon-co. Those loops that you made sound VERY interesting. How 'bout shooting afew pictures for us....