Subj : Re: CB experiments To : Weatherman From : Ginger1 Date : Thu Feb 27 2025 20:49:15 At 12:44 AM on 15 Feb 25, Weatherman said to Ginger1: We> Generally the CBs here have one meter, it's referred to as an S/RF We> meter. When transmitting it shows the output signal strength as We> referenced against an internal standard and when receiving it shows the We> receive signal strength - again referenced against an internal standard. Right, so I think this is just the same as on my radio. It's a single meter - and I imagine the "signal" guage as I was referring to is the receive signal strength, whereas "power" is the transmit strength. We> When I refer to "internal" standard, I mean it. There is no industry We> standard I know of that defines exactly what an S9 received signal is or We> what a "5" output strength is. Too many variables to go into here to We> try to explain it. On your radio, with two meters, I can only guess We> that "signal" would indicate the strength of the received signal and We> "power" would indicate the transmitter output. Not knowing the model of We> the radio and then looking up the manual, this is just a guess. Sorry - I think my initial explanation wasn't very clear - just the one meter as above. But I now know what this is doing - thank you :) We> Tuning refers to altering the length of the driven element of the We> antenna. Making it shorter to try to match the desired operating We> frequency. Mine is a shop-bought one, so no tuning required then. Lovely. Gi> Do Squelch and RF Gain have a role (I have knobs for these on the Gi> radio). We> Squelch is used to raise the noise floor of the radio's receiver so that We> only signals above a given level will be heard. It's essentially used We> to adjust the receiver so that background static is not heard and so We> that signals stronger than the squelch setting will be heard. Ok, so the lower the squelch setting, the more chance I will have of hearing distant signals, but more background noise too. Makes sense. We> RF gain adjusts the receiver's sensitivity. Best use of the RF gain is We> when you are trying to hear a signal but a weaker signal on the same We> frequency is interfering. By adjusting the RF gain you can make the We> receiver less senstitive so that the weaker signal is attenuated to the We> point where it no longer interferes with the signal you're trying to We> listen to. Sounds like one I need to play with, in that circumstance. Fantastic. Thank you for all of this information. Gradually increasing my CB knowledge! Dial-Up Nights BBS: +44(0)1202 929659 (9 pm - 6 am UTC) * Q-Blue 2.4 * --- þ Synchronet þ >>> Magnum BBS <<< - magnumbbs.net .