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   Home   Help Search  
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 51 
 on: Today at 09:34:39 AM 
Started by HG5AZR - Last post by DL8OV
Chemistry?

Maximum temperature?

ROHS compliant?

Date of Manufacture?

Batch number?

I would not worry too much unless you are using the device close to its maximum specification.

Peter DL8OV

 52 
 on: Today at 09:30:06 AM 
Started by N7RST - Last post by WY4J
I recently had a post for a WTB.  A K5 (locally more or less) responded that he had an item I might be interested in.  I responded back asking how much did he want for it.  Pfft.  Disappeared.

All of us in this hobby are all getting pretty long in the tooth. Maybe...Alzheimer, heart attack, broken hip, stroke, unconscious due to falling down the stairs, falling off the scooter, hit by a car, auto accident, hit over the head with a frying pan by the XYL for spending too much on that K3?

I'm happy just to be on the green side of the turf.

 53 
 on: Today at 09:26:17 AM 
Started by ON3KSB - Last post by DL8OV
This is a topic which is far too complicated for the Elmer section but I will attempt a solution, please test this before setting sail across the Atlantic  Smiley

1) The cable you have been supplied with should have a 15-pin D-Sub connector on it that is designed to connect to the K3 and not much else, it is therefore useless for this application apart from being able to use the connectors.

2) You don't say which model of Microham Digikeyer you have but your connections to the M710 are as follows:

ACC 1

1.     CW Key
2.     Ground
3.     PTT Line, Ground for Transmit
4.     Modulation Input to rig
5.     AF Detector Output from rig
6.     Scan (not used here)
7.     13,8V out, possibly to power your Digikey unit after fitting a fuse.
8.     ALC in (not used here)

So, audio from your Digikey goes to pin 4 and audio to your Digikey goes to pin 5. Please also note that there are TWO ways of sending FSK modes using this rig, the first method uses the oscillator inside the transceiver and a high/low on pin 1 (FSK Mode), the second method uses audio tones fed through the ACC 1 connector (J2B Mode) See page 10 of the manual.

Disclaimer:
I know nothing about the Icom IC-M710 or about Microham equipment apart from what I found out this evening using Google. Getting a Marine Inspector or an expert in marine electronics to check out your work would be a really good idea.

Peter DL8OV

 54 
 on: Today at 09:26:01 AM 
Started by KD8ZQY - Last post by KD8ZQY
Hey all,

Using the AE7Q database, I've found two callsigns that become available on the same day. I don't really have a preference for one over the other (just interested in getting a 2x1), so am I allowed to apply for both? I know the filing multiple apps for the SAME callsign is not allowed, but can I apply for multiple callsigns at the same time?

Thanks!

 55 
 on: Today at 09:19:07 AM 
Started by AJ7G - Last post by W2IRT
I had no choice but to send them via registered international mail, the card checker of choice was Bill K4CIA.

That's ridiculous. Are there no card checkers in countries other than the US, or maybe only none in VK at the present time?
Australia has two DXCC card checkers, but neither of them can do 160m cards. Here's the full worldwide list:
http://www.arrl.org/files/file/DXCC/2014%20Card%20Checker%20red160Dec2014%281%29.pdf. Glad to see they finally corrected my street address <g>.

 56 
 on: Today at 09:18:43 AM 
Started by W8RNO - Last post by KA5IPF
Have you read the OM and set it up by the book? The Slope tune High should be clockwise and the Low counterclockwise. Slow down when tuning across a signal.

 57 
 on: Today at 09:17:46 AM 
Started by KY6R - Last post by KY6R
And we have already filed several new Patents . . .


 58 
 on: Today at 09:07:03 AM 
Started by WA7SGS - Last post by KQ0C
And if you can make a single wire doublet of 22 feet in length on each side (or better yet 44ft) fed with ladder line you will have an even better antenna. The most stealthy way to put it up would be as an inverted V with the ladder line running up the side of the house or in a tree.

 59 
 on: Today at 09:04:51 AM 
Started by KB8BAB - Last post by KB8BAB

Does anyone use these at all?

I've been looking at these switchers (Dell DPS-600PB) that have a 12v 47A rating. Surely enough to power a rig. And yes they can be wired to vary the output voltage as well.

Purchase price is between 15-25, would seem to be a good alternative to what's offered by Astron, MFJ, etc...

73
Bart

 60 
 on: Today at 08:56:29 AM 
Started by KY6R - Last post by KJ4Z
... prepared a work space for making coax, ...

You guys are hard-core.

We are also building the radios by hand using only raw carbon, copper, and silicon.

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