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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