- August 5, 2017 at 7:01 pm #22533
Today I was responding to someones CQ…I am not sure if he was talking about me but what came back was: “Someone is trying to transmit and I don’t understand your modulation”.
According to the meter on the Radio I was not overmodulating but I’m wondering if it could be my (1) Mike (2) Antenna (which has an SWR of 1.16 on this band) or (3) Filter settings on my 7300? Could I have my mike gain set to high, I think its at 25 and compression was 5.
TonyAugust 5, 2017 at 11:38 pm #22639August 6, 2017 at 6:13 pm #22809
Thanks Fred…Yes definitely correct sideband and mode (the radio kind of figures that out and I don’t change it).
I did try using the old microphone (not the one with the Heil microphone). I am running the Heil with the cable without the cap because I believe the version of the Heil headset that I have doesn’t need it. It worked better without it anyway. I didn’t get any response from the person on the other end but at the point I think he was in a pileup so either ignoring the bad transmission or just not hearing it.
Any hints as to how I could help to further isolate where the problem might be?
AnthonyAugust 6, 2017 at 7:48 pm #22818
Would you like to do a contact with me one evening this week so we can figure out what is going on with your setup? Let me know a good time and a frequency on 40m or 80m that works for you and we’ll give it a try.August 7, 2017 at 2:13 pm #22974
Thanks that would be great. What day and time are good for you and I will make myself available?
Probably best to try 40m and once we get that working try out 80m. I will find the cable for the Heil with the capacitor in it, but pretty sure it was working better without the capacitor.
As far as frequency, maybe we can start out at something like 7.140 and if that frequency isn’t available or you can’t hear me just use our cell phones to figure out what to do next.
Thanks for your help on this,
TonyAugust 7, 2017 at 3:05 pm #22980August 7, 2017 at 3:13 pm #22982
ok, not sure i have your home phone number, just your cell I think…can you text me the home phone number and I will call at 8:00.
TonyAugust 7, 2017 at 3:31 pm #22986August 7, 2017 at 9:49 pm #22614
“I don’t understand your modulation” doesn’t make sense.
In electronics and telecommunications, <b>modulation</b> is the process of varying one or more properties of a periodic waveform, called the carrier signal, with a <b>modulating</b> signal that typically contains information to be transmitted.
If he’s trying to say that your signal is poorly modulated with regard to being understandable he’s making a ton of assumptions. How were your other responses to contacts? I suspect he had trouble receiving your signal and incorrectly blamed your modulation.
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