88 lines
1.7 KiB
Markdown
Executable file
88 lines
1.7 KiB
Markdown
Executable file
---
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draft: true
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---
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# you're telling me a Ham Fisted this Metaphor?
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- hamstudy.org
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- FRN: 0036253789
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- callsign format
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- standard 2x3
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- KA4\*\*\*
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- vanity 1x3
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K4\*\*\*
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- potential callsigns?
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- KM1RA\*
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- K4RIM
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- KM4IRA
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- KA4RIM
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- W4RIM
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- N4RIM
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- N4YAN
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- N4YAA
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- W4HYY
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- N4NII
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- K4PPA
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- W4STE
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- K4FKA
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- N4BLA
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- W4RPS
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- W4RNS
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- W4RDS
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- W4RES
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# Section 1
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# T0
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- Bonding ground rods is a good idea so that you can parallelize grounding
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- allowable RF density scales inversely to duty cycle
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# T1
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- ARS can only transmit music if it's from a space station
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- you can never intentionally transmit music
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- if a non-licensed person is talking to a foreign station, the US needs to have an agreement with that country
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- For stuff above HF, max power is 1500W
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# T2
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- CQ is a call to any station (`@anyone`)
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- `CQ CQ CQ <callsign>` on Lower HF bands
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- `CQ <callsign>` on VHF/UHF/Repeater
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- QSY is change frequency
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- +/- 5MHz is a common freq offset for repeaters in 70cm band
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# T4
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- Electronic Keyer helps with morse code
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- Tuning an FM receiver off frequency causes distortion
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# T3
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- UHF Signals are not propagated by ionosphere
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- Only way to identify amateur bands is wavelength
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- Sporadic E is weird refraction of signals through layer E of ionosphere
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# T6
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- Single pole means one set of contacts
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- Single Throw means one choice per set of contacts
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# T7
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- Make sure circuit is off when using ohmmeter
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# T8
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- DMR (Digital Mobile Radio) uses TDM to put two signals on same repeater
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- CW is morse code, needs very little bandwidth
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# T9
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- A 5/8 wavelength antenna has more gain than a 1/4 wavelength
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- bigger fraction means lower angle and higher gain
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- lower angle always better
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