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on4aa

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8 Questions

Votes Activity Newest Views

1

10

votes

2

answers

95

views

Where on the web can I find a calendar of upcoming contests?

contest internet

Dec 1 '14 at 23:58 Amber 2,439

1

8

votes

2

answers

362

views

Have hams ever used (clusters of) geostationary satellites as passive microwave reflectors?

satellites microwave

Jan 27 '14 at 19:55 Community♦ 1

2

6

votes

2

answers

781

views

Is there a digital multimeter that is more interesting for a ham than a run-of-the-mill model? [closed]

voltage

Dec 2 '14 at 0:21 Kevin Reid AG6YO♦ 21.3k

4

votes

2

answers

1k

views

Which HF transceivers feature a built-in Ethernet port for remote operation? [closed]

hf transceiver internet remote-control

Nov 28 '13 at 21:31 on4aa 1,218

1

3

votes

4

answers

496

views

Plastic predator bird props — Are they effective? How to mount them?

antenna-construction

Jan 30 '19 at 17:49 Mike Waters♦ 6,851

1

3

votes

2

answers

348

views

Do electronic ballasts for fluorescent tube lamps cause HF interference?

hf rfi

Dec 6 '14 at 21:04 jcoppens 667

1

2

votes

2

answers

3k

views

How to eliminate alternator whine?

mobile rfi capacitance

Jul 17 '17 at 14:01 on4aa 1,218

1

0

votes

2

answers

172

views

How can I find out if a particular LED light bulb model is known to cause RFI before buying?

rfi

May 3 '16 at 7:38 Edwin van Mierlo 1,946

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