Archive for April, 2007

How should I maintain my soldering iron tips?

Friday, April 27th, 2007

I am having trouble with my soldering tips. It seems that I have to use a tip tinner way to often. If I let the iron sit for any small amount of time even while I place another component for soldering I have to clean the oxidation off it before it will even melt solder. My question is….I use regular tap water on my sponge could this be the problem with my tip oxidizing so quickly? If I used Distilled or Deionized water will it help in keeping my tip clean? If so which is best to use Distilled or Deionized? (more…)

What is meant by “Beacon Mode”

Friday, April 27th, 2007

Beacon mode, a feature of many electronic keyers, is the continuous repetition of a message until the operator intervenes. (more…)

Why does my key have a switch on it?

Wednesday, April 4th, 2007

My Ameco K-4 key has a thing like a switch on it. It’s a thin metal piece with a small plastic knob and it can be rotated in underneath a flange on the lower contact. What exactly is it for?


Will the OHR DD-1 Digital Dial work with my radio?

Wednesday, April 4th, 2007

We do not directly support the OHR DD-1 as a digital dial for radios other than OHR, but in practice it can be used with many. The manual includes block diagrams of several basic receiver types with indications of where you would look for a connection point. If your radio does not have a countable frequency available at a jack (e.g. an “accessory jack”) you will need to have some understanding of the electronics involved, and an ability to read the schematic diagram for your receiver.
But of course the DD-1 is also set up for use as a stand-alone counter. So if you can find a relevant frequency to count, you can use the DD-1, and often you can program the “digital dial side” of the device to show your operating frequency. The usual problem is that some receiver designs use different LO frequencies for different bands or groups of bands. One solution to that problem is to set up different offsets in the five memories of the DD-1, and selecting them is simply a matter of pressing a front- panel button.

The connection parameters are essentially identical to the AADE DFD1 (which we also sell). Neil provides detailed notes for a number of radios on his web site at