basic land mobile radio comms - 30 minute video

https://youtu.be/1WjBilqyTxU

1992 by Motorola

we just added an index

by Dan Clark

posted to You Tube in 1992 - 29,000 views since then

basic communications systems configurations


rtrtrt55


0000 Field Assist Service Training 0000 Basic Communications System
Configurations with Dan Clark 0030 single frequency simplex systems T1
= transmit on frequency 1 R1 = receive on frequency 1 T2 = transit on
frequency 2 R2 = receive on frequency 2 0700 full duplex - (such as
the med channels at 463.00 mhz) (also duplex mobile telephones at 152
mhz and 454 mhz in USA) 0820 repeaters 1020 control station (FX1 - usa
/ fcc designation) 1300 multi repeaters 1400 private line / dpl /
ctcss 1511 - dtmf 1710 lockup problem 1730 community repeaters (FB4
FB6 FB8 - fcc usa designations) 2000 RA / repeater automatic (aka
'remote base') 2400 relay station / multi hop 2615 - dont shoot /
repeater keyup delays 2700 backbone system 2810 - PAC RT / VRS / MO3 -
150 mhz / 450 mhz - 250 milliwatt portables 3100 MO3 timing scheme
mentioned 3151 1992 by Motorola Inc