Hi all and many thanks for the search tips and K2 audio suggestions.
Now I've had a good look in the archives, it seems to be a matter that comes up
from time to time.
I have aligned my K2 (without any accessories) following Don Wilhelm's
instructions extracted from the K2 manual, all in one place and very handy -
thanks Don.
My K2 does not sound 'insensitive', just slightly lacking in audio volume.
I have looked in the archives for comparative measurements but not found any,
so I made some myself.
To test audio amp performance:
With sidetone pitch set to 500 Hz I measured the following peak-to-peak
voltages across the speaker on a 'scope:
Sidetone level 10 = 70mV pp; 20 = 140mV pp; 50 = 350 mV pp; 80 = 540 mV pp; 100
= 700 mV pp; 225 (max) = 1.7v pp (Note: the volume control is inactive on
sidetone)
Antenna disconnected; volume turned to max, 7MHz internal spurious, FL2
selected (peaked at about 7,000.25 kHz and at or below S1) approx 220 mV pp
across speaker
Volume turned to max, S9 signal from signal generator on 7050 kHz gave about
5.5 V pp and S2-3 about 2.5-3V pp.
I must admit that the S9 and even S3 signal level tests did seem to give
adequate volume, so maybe I'm just used to other equipment.
Nevertheless, I hope these measurements are helpful, especially to those who
think their K2 volume may be a bit low.
Thanks and regards,
Ian, G4JQT
______________________________________________________________
Elecraft mailing list
Home: http://mailman.qth.net/mailman/listinfo/elecraft
Help: http://mailman.qth.net/mmfaq.htm
Post: mailto:[email protected]
This list hosted by: http://www.qsl.net
Please help support this email list: http://www.qsl.net/donate.html
