website/content/posts/You're telling me a Ham Fisted this Metaphor.md

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you're telling me a Ham Fisted this Metaphor?

• hamstudy.org

• FRN: 0036253789

• callsign format

  • standard 2x3

    • KA4***

  • vanity 1x3 K4***

  • potential callsigns?

    • KM1RA*
    • K4RIM
    • KM4IRA
    • KA4RIM
    • W4RIM
    • N4RIM
    • N4YAN
    • N4YAA
    • W4HYY
    • N4NII
    • K4PPA
    • W4STE
    • K4FKA
    • N4BLA
    • W4RPS
    • W4RNS
    • W4RDS
    • W4RES

Section 1

T0

• Bonding ground rods is a good idea so that you can parallelize grounding
• allowable RF density scales inversely to duty cycle

T1

• ARS can only transmit music if it's from a space station
  • you can never intentionally transmit music
• if a non-licensed person is talking to a foreign station, the US needs to have an agreement with that country
• For stuff above HF, max power is 1500W

T2

• CQ is a call to any station (@anyone)
  • CQ CQ CQ <callsign> on Lower HF bands
  • CQ <callsign> on VHF/UHF/Repeater
• QSY is change frequency
• +/- 5MHz is a common freq offset for repeaters in 70cm band

T4

• Electronic Keyer helps with morse code
• Tuning an FM receiver off frequency causes distortion

T3

• UHF Signals are not propagated by ionosphere
• Only way to identify amateur bands is wavelength
• Sporadic E is weird refraction of signals through layer E of ionosphere

T6

• Single pole means one set of contacts
• Single Throw means one choice per set of contacts

T7

• Make sure circuit is off when using ohmmeter

T8

• DMR (Digital Mobile Radio) uses TDM to put two signals on same repeater
• CW is morse code, needs very little bandwidth

T9

• A 5/8 wavelength antenna has more gain than a 1/4 wavelength
  • bigger fraction means lower angle and higher gain
  • lower angle always better