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Circuit Board Construction Question Mar 23rd 2012, 13:10 4 3,021 on 15/9/13
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Latest Posts

Topic Author Posted On another confirmation process K4WY on 22/2/17
Why don't you call the ARRL and ask them?
De-activation of "" In Process AA1PR on 7/2/17
Thank you!

Your post has been forwarded to our IT Department

Bob Allison
ARRL LAB Logbook K9SLQ on 3/2/17
To what?

If it is to the ARRL Logbook of the World, call the LoTW help desk:
860-594-0314. They are friendly and patient.

Bob Allison

Who controls the freq use on simplex 2 meters with these relay links kz4usa on 3/2/17
You may be experiencing the effects of Third Order Intermodulation Distortion. That happens when two strong, evenly spaced signals are picked up on your antenna system and mix in the front end of your receiver. It can appear out of no where and sound like data, beeping, or as a voice transmission. Example, you are tuned to 146.520. Two strong signals are present at 151.520 and 156.520 MHz, which create a phantom signal at 146.520 MHz.

You can get rid of 3 IMD by using a transceiver that has a higher 3 IMD DR than the one you are currently using, or use an antenna with less gain.

As far as who controls the frequencies; they are usually coordinated by a volunteer frequency coordinator, but each licensed Radio Amateur has the right to transmit on frequencies for which he or she is licensed to, with the hope that they will use good judgement.

Bob Allison
Band plan KM4OPN on 16/12/16
Broadcasting, No.

Broadcasting (one way transmissions, excluding remote control) is not permitted on any Amateur band. Two way Amateur transmissions are permitted on the entire 6 meter band for all Radio Amateurs, including techs. Keep in mind that 50 to 50.1 MHz is CW only.

Have Fun!

Bob Allison

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