Basic guide to Radio speak.. ULF= Ultra Low Frequency. From 3 to 30hz. VLF= Very Low Frequency. 30hz to 30khz. Low Frequency= includes the broadcast band Long Wave. 30khz to 300khz. Medium Frequency= Medium Wave broadcast plus more. 300khz to 3MHz. HF = High Frequency or Short Wave. 3 Mhz to 30MHz. VHF = Very High Frequency. 30 to 300 MHz. Includes, airband, marine band & the broadcast VHF band among other things. UHF = Ultra High Frequency. 300 to 3,000 MHz Includes Military Air & 446 licence free. MHz= 1000 khz GHZ = 1000 Mhz. QTH = Location. The Q code can be used in a variety of ways. What is your QTH. My registered QTH (QTHR) is..etc etc. QSB = Fade QRM = Man made interference. ie. electrical noise, someone else using your frequency. QRN = Natural interference. ie. natural noises. QSL= A postcard like card exchanged to prove someone has heard you/you have heard, spoken directly with them. But could also mean I understand. QSO = a two way conversation. 73 = Best Wishes..Note it is already plural. This is taken from the Western Union 1859 Radio Telegraphers 92 code. SWL = Short Wave Listener. DX = Distant. Skip= what carries the radio signal. Propagation = What produces the conditions to carry a signal. Lift= Good propagation. That is conditions that make a radio signal travel further than it would normally & often much much further.
Last edited by m0lsx on Mon Apr 18, 2016 10:00 pm, edited 1 time in total.
Signal reports.. For a repeater, a signal is rated by it's strength into the repeater. Is it fully quietening?? That is does it bring any static hiss in with it??
For a two way signal or to rate the repeaters signal to us we use part of the old telegraphers RST code. R = readability S= Strength. & T = Tone. But as we are not using morse, tone is immaterial. So we just use the other two. R = READABILITY 1 -- Unreadable 2 -- Barely readable, occasional words distinguishable 3 -- Readable with considerable difficulty 4 -- Readable with practically no difficulty 5 -- Perfectly readable
S = SIGNAL STRENGTH 1 -- Faint signals, barely perceptible 2 -- Very weak signals 3 -- Weak signals 4 -- Fair signals 5 -- Fairly good signals 6 -- Good signals 7 -- Moderately strong signals 8 -- Strong signals 9 -- Extremely strong signals.