IC-7300 QSK Full-Break-In Test

Описание к видео IC-7300 QSK Full-Break-In Test

Here is a crude demo of the QSK capability of the IC-7300.
A carrier is transmitted from another source while sending dits on the tested rig. The highest cw speed that we can hear something from the breaking source reveals the QSK limitation. In this case 25 - 28 wpm would be tops. I've found it adequate for QSOs over 30 wpm. My camera seems to pick up the relay better than expected. It's not really that loud. Perhaps it was because the camera was just 6" from the radio. The fan is actually much louder than what we show here. For some reason the camera is immune to fan noise!
Another observation: The IC-7300 does truncate the dits when in F-BKIN mode. Switching to semi BKIN lengthens the characters slightly. This was observed when using the 7300's internal keyer. Personally, the dits while in semi-bkin mode seemed a bit too heavy but just right in F-BKIN. Whatever.....You can hear the difference and to compensate you would have to use an external keyer. The 7300 does have a Dot/Dash Ratio setting however it's not really a "weight control" rather it sets the ratio between dits and dahs which should normally be left at 1 to 3 anyway.

Reducing Relay Noise
   • Видео  

After this mod it is about like the average rig.

Комментарии

Информация по комментариям в разработке