AF6MQ TuesdayTechNet notes

2024.03.19

Wikipedia Voyager

2024.03.12

voyager radio: 23 watts. deep space net channel 18. tx 2.3ghz 8.4ghz, rx 2.1ghz Voyager homepage JPL

Approximately how long does it take for radio signals from Earth to reach the Voyager Probes?
A. 10 hours
B. 20 hours
C. 30 hours

How long will a 100Ah battery last if the radio draws 10Amps?
A. 1 hour
B. 10 hours
C. 100 hours

2024.03.05

Reeve antenna grounding paper

Mike Holt NEC 810

P = V * I
V = P / I
I = P / V
Approximately how many Amps will a 50 watt FM radio draw from a 12.0VDC battery transmitting at full power?
A. 2 Amps
B. 4 Amps
C. 8 Amps
D. 60 Amps

2024.02.27

coast QST mailing list

2024.02.20

8R7X DXpedition Guyana

NG3K DX entities

arrl dx entities list

GreyLine Maidenhead

Fourmilab Greyline

2024.02.13

Space Weather Bulletin

CC1101 datasheet

2024.02.06

GOES West channel 10

NCEP NA Surface

2024.01.23

Andreas Spiess LoRa Meshtastic

1w LoRa ham shield

2024.01.16

Norcal repeater coord

2024.01.09

Ionosphere map .au

2024.01.02

FCC 47 Part 97 Amateur Radio

47-97-20231229 PDF

FCC icense counts

AH6RH doppler shift

HOTARC dopper shift

KB1SF getting started w sats

2023.12.26

AMSAT status page

NASA SpotTheStation

issfanclub sstv

MMSSTV for windows

QSSTV github (in debian repo)

2023.12.19

af6mq AIS shipexplorer.com

MarineTraffic.com

The Valve Museum

2023.12.05

Signal Identification Wiki

SigIdWiki Digital

2023.11.28

af6mq opengd77 channels.csv

2023.11.14

inverted V antenna

mcarcs oct minutes

lightningmaps.org

2023.11.07

trusdr dl2man.de

dont buy chinese

2023.10.24

2023.10.17

MCAR general class day2

FtBragg ham exam 11/4

WholeEarthCatalog

2023.10.10

MCAR General class day1

2023.10.03

smarc nets list

2023.09.19

2023.09.12

General Class exam

2023.09.05

Western Placer ARC

wparc 20230916 swap meet flyer

SCRA 20230923 swap flyer

2023.08.22

W6MMM club page

Palomar EndFed baluns

HFKits endfed antenna

2023.08.15

Fisher Wireless

2023.08.08

cycle 25 timelapse

2023.08.01

superconductivity

2023.07.25

Grid Square map2

Autotransformer

2023.07.18

Maidenhead Locator System

Jul 17 pressure

WA6USL swap meet

Aluma Telescopic

2023.07.11

USGS Earthquake map

Radio Telescope Satellite interference

2023.06.13

Turnstile Antenna

2023.06.07

AMSAT sat status

NASA spot the station

Wikipedia ham sats

2023.05.30

BlitzOrtung lighting map

Lightning detection

NOAA ground current safety

google image radio tower grounding

2023.05.16

Broad Band Terminated Dipole

HF underground CB page

The World Radio Club 11m

2023.05.09

NATO/ICAO Phoentic Alphabet -wikipedia

Phonetic Alphabet Chart

Title47,I,D,part97

part 97 encourages

part 97 3 minutes

NOAA Space Weather Prediction Center

2023.05.02

BlitzOrtnung.org

USGS Earthquake map

NOAA Tsunami Warning Center

2023.04.25

Line of Sight Propogation

Skywave Propogation

propogation radius

Line of Sight Calculator

Distance in miles = (square root of antenna height) x 1.22

Antenna Sparky Award

2023.04.18

10meters on Wikipedia

ARRL Tech Privs

Ten Ten International

Mon-Sat 1800Z 28.380MHz

Stryker radio 10m page

CB radio supply 10m radios

Walcott radio 10m radios

2023.03.21

HamSCI WWV propogation test

2023.03.14

slim jim and jpole calculator

10 beacon list 2

2023.03.07

moxon for 28mhz

2023.02.28

NOAA SWPC ACE 7day

Australian SWFC

GOES image viewer

2023.02.21

Software Defined Radio

Si473X Receiver Chip

PU2CLR duino library github

RandL ATS-25max

ATS-20 front panel

2023.02.14

Battery Management System (BMS)

camera battery pack

zooms 100AH LiFePo4

EI8IC zone map page

2023.02.07

Magnetron innards