Amateur Radio Stack Exchange Community Digest

Top new questions this week:

How to connect a David Clark headset to a Yaesu FT-710

I have a question that I need a person a lot smarter than me (l’m a retired Firefighter not an electronic engineer).I found an article on how to hook up a David Clark H3340 headset to a Yaesu FT-100D ...

yaesumicrophone

asked byJIM Score of 2 answered byRyuji AB1WX Score of 0

Why Does Yaesu FT-891 Fail To Transmit On Certain Bands?

I have a new FT-891. Today, while becoming better acquainted with it, I noticed it was not transmitting on 30m. First there was an LDG Z100A and then an MFJ antenna tuner between the transceiver and ...

rf-powertransmitterantenna-tuneryaesuft-891

asked byoctopusgrabbus Score of 1 answered byRyuji AB1WX Score of 2

Greatest hits from previous weeks:

What is a waterfall display?

High-end transceivers apparently come equipped with a water-fall display - something to do with improved spectrum visibility. This is supposed to lead to potentially higher QSO count and rate.What ...

transceiverequipment

asked byVU2NHW Score of 10 answered byuser Score of 15

Adding and subtracting dB/dBm/dBi values

I've got a question and any clarification on that would be greatly appreciated.For calculating the pathloss in wireless communication we usually use the following formula:PL = pathloss (in dB) + ...

antennamath

asked bysusan Score of 4 answered byhobbs - KC2G Score of 9

How to convert a Morse Code Message/QSO from Mp3 file into text?

I tried to use both:Cwget CW decoderBut neither one worked. Can you recommend a tool or an alternative approach to decode a Morse message saved as an Mp3 file?

cw

asked byMedAli Score of 5 answered byAdam Davis Score of 3

Using a balun with a resonant dipole

I am preparing to construct a resonant, center-fed, horizontal dipole. I have seen people use baluns at the feedpoint of the antenna, and some people swear by them, but I have never gotten a ...

antennawire-antennabalun

asked byW5VO Score of 45 answered byPhil Frost - W8II Score of 49

What is a Gamma match in the context of the driven element of a Yagi antenna?

How (and why) does a Gamma match work, when used on the driven element of a Yagi antenna? As shown here:(source: http://www.iw5edi.com/ham-radio/?2-element-yagi-for-10-meters-band,49)The article ...

antennaantenna-theorydipoleimpedance-matchingyagi

asked byRon J. KD2EQS Score of 11 answered byon4aa Score of 15

Is packet radio possible on Baofeng UV-5R and similar HTs?

I am curious to know if it is possible to do packet radio on VHF/UHF using the UV-5R... I have seen some invasive hardware hacks, but without modifying the radio itself (firmware, hardware) it's my ...

vhfuhfpacketaudio-interface

asked byuser400344 Score of 18 answered byuser400344 Score of 3

Can a Baofeng UV-5R+ be used on FRS, GMRS, and MURS?

Is this secure if I was talking to another Baofeng UV-5R+?

united-stateslegalfrequencysecuritymurs

asked byWebhobo Score of 4 answered bySDsolar Score of 8