April 17th, 2010
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73 from Marshall, N1FN
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April 17th, 2010
Can a single lever paddle be used as a sideswiper or cootie key? And if so, how would you wire it? Read the rest of this entry »
Posted in Amateur Radio, Keying Devices | Comments Off
April 16th, 2010
My digital multimeter has a continuity test, but my new analog VOM does not. Can I check continuity with my VOM, and if so, how?
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Posted in Amateur Radio, Soldering | Comments Off
August 25th, 2009
Which one would you choose?
Whoa, what a question! I mean, what is the REASON that I can have
only one? Is it because all the key makers have gone out of business, so I get to buy one, at any cost and then never any more? Or is it because I’m moving into an apartment and only have room on the desk for one key? Or is it because I can only afford a few dollars for one key? And do I get to keep my paddles and bugs? [g]
Read the rest of this entry »
Posted in Amateur Radio, Keying Devices | Comments Off
June 17th, 2009
What were Morse code requirements in Amateur Radio, before the 2001 changes and the complete abolition of code testing in 2005? And what were the testing procedures? Read the rest of this entry »
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May 17th, 2007
Some of the other names for a cootie key might be more familiar– sideswiper, double-speed key, and slap key. The simplest definition is a double-sided straight key, operated horizontally. Read the rest of this entry »
Posted in Keying Devices, Uncategorized | Comments Off
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? Read the rest of this entry »
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April 27th, 2007
Beacon mode, a feature of many electronic keyers, is the continuous repetition of a message until the operator intervenes. Read the rest of this entry »
Posted in Electronic Keyers, Keying Devices | Comments Off
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?
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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 www.aade.com.
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