Dummy load?
2018-01-19 15:19
Hi ALL, I was recording some messages for the BeNeLux contest and wished to test them for the appropriate levels.
Unfortunately there does not appear to be an easy way to match what you record to the levels that you get when you transmit.
In the end I just found a quiet part of ten meters where there was no propagation at that time and tried several settings to get the "right" ones.
Maybe a Dummy load of some sort, or an echo function, as is available on HS3, would be a useful addition to HS4!
This may give people a general way of trying microphones and settings before using them on the "air."
It is possible that this might lead to better signal quality overall.
Setting the microphone up on HS3 and then using it with similar settings on HS4 does not seem to produce good results.
Kindest regards,
Brian. 30hs7103.
Re: Dummy load?
2018-01-19 21:43
Hi Brian,

mhm, I think that makes no sense on a virtual system. A Dummy Load is good to check a power-stage or modulation on a scope without transmitting, but I think it's difficult to "simulate".

Keep the ALC in the green area and maximum around 1,5, so your modulation should be very well. HS 4 and 3 are not simular, you can't transfer values to the other system.
And your signal you can see on beacons, if you start a short "clean" transmission on a clear frequency on this band.
In the DX-MON you see the value that you can expect from this area(s). With a Dummy Load it would be impossible to get such results.

73 and good DX from Jörg :-)
JO31ok
Bochum / Germany
Re: Dummy load rethink!
2018-01-26 16:39
O.K. I have had a great many problems getting my audio to respond to the various programs that I have on the computer!
Every time you change one level or re-adjust it affects some other parameter.
I have come to the conclusion that the set-up for audio for Hamsphere 3 and 4 is back to front.
The way I have finally done it is to set the microphone gain to maximum and then set the actual system levels in the computer to just give me two leds on transmit, whilst playing a radio (at good average level, on a talk channel)! (Do this on a band that is not in use, using the smallest possible antenna!)
In this way it is virtually impossible to over-modulate, even if you get excited and shout into the microphone.
By having the absolute maximum for the program at the maximum on the mike control, just seems to make better sense.
This adjustment is quite quick and can be easily done again if you change the microphone!
Can anyone see anything wrong with doing it this way?
Brian 30hs7103
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