Category Archives: Uncategorized

Rumlog 7300 Scope Feature Demo

If you have an Apple Mac and an Icom IC-7300, you may want to take a look at DL2RUM’s Rumlog NG software. Aside from being a very nice logging software package it offers a resize-able spectrum / waterfall scope that can fill your entire PC screen if you wish. This is a nice improvement over Icom’s RSBA-1 software that limits the display of the spectrum / waterfall when connected to an Icom IC-7300 to a fairly small area. The scope drawing performance is pretty similar to RSBA-1 due to the rather slow serial communication rate of 115200 baud. To get this working, you must download and install the Scilab VCP driver on your Mac and under Rumlog’s preference use the following settings for TX1:

Rumlog Settings







On the Icom IC-7300 got to Menu/Set/Connectors/CI-V/CI-V USB Port/ and set Unlink from [Remote]. While there set the CI-V Baud Rate to 115200. On Rumlog’s IC7300 control screen you should see a Show Scope button. If everything is working ok, you should have a the IC-7300 scope shown on your Mac’s screen.  There are several tweaks you can experiment with relating to the scope on the scope screen …

Best Holiday Gifts for the Radio Hobbyist for 2012

Well, it’s that time of year again where we pick the top radio related gifts for 2012. This year offered up some pretty interesting technologies related to the radio monitoring hobby and ham radio.  If you are looking for something this year to give yourself, ham radio friend or radio monitoring enthusiast here are a few suggestions. Ham Radio Science has used or reviewed most of these products and found them to be pretty darn cool. The other great thing is that most of these items are fairly inexpensive, which is a nice  for a change. Here are our top picks for the 2012 Holiday Season.…

A word about SDR Sharp

SDR Sharp has been a nice little SDR program for use with the RTL-2832U Dongles. However due to some concerns about licensing and “unofficial” modified versions of the software floating around it is now a bit more difficult to get going with your RTL-2832U dongle. The RTL drivers are no longer in place by default, you have to install them manually. So, basically if you download the SDR# Dev versions, it will not work out of the box. You will need to go to the SDR Sharp webpage and install according to the directions provided there or just go here.…

New Alinco DJ-X11 Firmware Update Out

One of our readers gave me a heads up (Thanks Mark!) that version 2.60 firmware update is now out for the Alinco DJ-X11 is now out. As far as what it does is pretty cryptic. The descriptions says “Three minor bugs fixed. (Squelch level changes after Flash-tune, Programmed-scanning / band-transition parameter relation and a small inconvenience in display)” Maybe someone will know what those issues were. I tried to update my DJ-X11 and had very little success. The problem is that when I start the firmware update program, I get an error message that says something to the effect that MSCOMCTL.OCX is not registered. This is very similar to the problem that we ran into with the control software problem that was mentioned in an earlier article here. Apparently, Alincos software must be developed on a Windows 98 platform.  If you are running anything newer  than 98, you may very well run into this issue. If anyone has any luck with it, let us know!

The firmware can be found at Alincos Website.

Discuss on Alinco DJ-X11 Forum