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jmcauliffe

Joined: Thu, Aug 4th 2022, 14:46 Roles: N/A Moderates: N/A

Latest Posts

Topic Author Posted On
SWR on homebuilt Yagi rdallen56@charter.net 3 days, 1 hour ago
What Coax are you using? If you are using RG-58 or something similar it will cause the high SWR condition. You want something like LMR400. Also in the future please submit questions to tis@arrl.org or call using our phone number.

John
Digital RF Engineer
ARRL Lab
excessive noise problem rlstolp@yahoo.com 3 days, 1 hour ago
Follow the procedures here and if the problem persists submit a ticket to our RFI program. https://www.arrl.org/radio-frequency-interference-rfi

John
Digital RF Engineer
ARRL Lab
Broken ARRL account NC1VR on 16/4/24
Hello Vlad

I looked up your records and you still show up correctly on our membership search with all of your credentials, unless this has already been resolved on your account I am not sure what the issue is. I can forward your issue to our IT department if you like.

John
Digital RF Engineer
ARRL
IC-M700PRO What are my options? rajens on 5/4/24
A directional antenna may help a bit with the noise though I would first try to evaluate if the noise is coming from a specific source such as a powerline. What does it sound like? I don't think you need a new radio.
Distance between antenna and tower K4DJW on 5/4/24
Common consensus is half wave separation, though we recently modelled this with Eznec and the performance isn't too different at 1/4 wave if you can't manage 1/2 wave.

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