ptrs-local-net-test-001/README.md

3.9 KiB

PTRS Net Attempt 2022-08-27T20:00-04:00

Goal

Test out local network radio communications. Specifically, determine real-world frequency and power reach.

Schedule

For this example, N0CALL is an FCC Amateur Radio license callsign. In the real test, use real callsign.

For this example, John Three is a pseudonym.

  • Announce net start on Matrix/Telegram.
  • Call out on Pats Peak - K1BKE Repeater
    • Repeater output 146.895 MHz, CTCSS 100.0 Hz, FM (repeater input 146.295 MHz, CTCSS 100.0 Hz, FM)
    • using 60 watts
    • "This is November Zero Charlie Alpha Lima Lima monitoring on K 1 B K E for a couple minutes."
  • Call out on VHF Ham frequency
    • 146.550 MHz FM
    • using 60 watts
    • "This is November Zero Charlie Alpha Lima Lima monitoring on one four six decimal five five simplex for a couple minutes."
  • Call out on FRS 17 / GMRS 17
    • 462.60000 MHz FM
    • using ahem 2 watts (obviously not UV-5R 5 watts into roof mount antenna)
    • "This is John Three monitoring on F R S seventeen for a couple minutes."
  • Call out on CB 3
    • 26.985 MHz AM
    • using ahem 4 watts (obviously not IC-7300 25 watts)
    • "This is John Three monitoring on Channel Three for a couple minutes."
  • Call out on 80m Voice (SSB)
    • 3.990 MHz LSB
    • using 100 watts
    • "This is November Zero Charlie Alpha Lima Lima monitoring on eighty meters for a couple minutes."
  • Call out on 80m Digital
    • 3.990 MHz LSB
      • By convention, Ham digital is USB. Leaving as LSB from prior test.
    • using ~40 watts
    • Contestia 4-250, 1500 Hz on the waterfall
    • FlDigi with optional FlMsg, or for Android, AndFlmsg
    • Brief text "Hello Radio de N0CALL"
    • Brief blank form message with "Hello Radio de N0CALL"

Radio and Antenna Used

  • Icom IC-7300
    • 100 watt HF Ham radio
    • home made End-fed Half-wave (EFHW) 80m inverted-V sloping from ground to 40 feet
  • Cobra CXT385
    • FRS hand-held
    • Fixed Antenna
  • Baofeng UV-5RV2+
    • Ham radio hand-held
    • MFJ-1754 Dual-band 144/440 ground plane mounted above two-story roof peak
  • Cobra 19 ULTRA III
    • CB mobile radio
    • home made End-fed Half-wave (EFHW) 80m inverted-V sloping from ground to 40 feet
  • Kenwood TM-281
    • VHF Ham radio
    • MFJ-1754 Dual-band 144/440 ground plane mounted above two-story roof peak

Glossary

AM
Amplitude Modulation (Encode low-high sound by varying output power less or more)
CB
Citizen's Band ~27 MHz
CTCSS
continuous, tone-coded squelch system
FM
Frequency Modulation (Encode low-high sound by deviating the transmit frequency lower or higher)
FRS
Family Radio Service (Blister pack, Walmart, low power, camping UHF radios. Fixed antenna.)
GMRS
General Mobile Radio Service (FCC family license, high power, UHF radios. Repeaters allowed.)
HF
High Frequency 3 - 30 MHz
LSB
Lower Side Band (left half of AM signal with carrier suppressed. Used by Hams below 10 MHz.)
NVIS
Near Vertical Incidence Skywave
PL
Private Line (Motorola proprietary term for CTCSS, not "private")
PTRS
Pine Tree Radio Society
SSB
Single Sideband (half of an AM signal with the central carrier suppressed. Commonly Upper Sideband, except Ham voice below 10 MHz.)
SWL
Short Wave (Radio) Listening
UHF
Ultra High Frequency 300 - 3000 MHz
USB
Upper Side Band (right half of AM signal with carrier suppressed. Used by Hams above 10 MHz and everyone else everywhere, including digital.)
VHF
Very High Frequency 30 - 299 MHz
Watts
Measure of power named after Issac Watts, inventor of the steam engine. (Yes, watts convert to horsepower.)