STANDARD SSB MODES (Subjective Descriptions) | BANDWIDTH | FREQUENCY RESPONSE @ -6dB Points | ITU DESIGNATOR (Technical Descriptions) |
Standard SSB (Narrow) | 2 kHz | 400 Hz ~ 2.4 kHz | 2K00J3E |
Standard SSB (Medium) | 2.4 kHz | 300 Hz ~ 2.7 kHz | 2K40J3E |
Standard SSB (Wide-1) | 2.7 kHz | 200 Hz ~ 2.9 kHz | 2K70J3E |
Standard SSB (Wide-2) | 2.9 kHz | 100 Hz ~ 3.0 kHz | 2K90J3E |
EXTENDED SSB MODES (Subjective Descriptions) | BANDWIDTH | FREQUENCY RESPONSE @ -6dB Points | ITU DESIGNATOR (Technical Descriptions) |
eSSB (Narrow-1) | 3 kHz | 100 Hz ~ 3.1 kHz | 3K00J3E |
eSSB (Narrow-2) | 3.5 kHz | 80 Hz ~ 3.58 kHz | 3K50J3E |
eSSB (Medium-1) | 4 kHz | 50 Hz ~ 4.05 kHz | 4K00J3E |
eSSB (Medium-2) | 4.5 kHz | 50 Hz ~ 4.55 kHz | 4K50J3E |
eSSB (Wide-1) | 5 kHz | 50 Hz ~ 5.05 kHz | 5K00J3E |
eSSB (Wide-2) | 6 kHz | 50 Hz ~ 6.05 kHz | 6K00J3E |
Copyright © 2003 |
Logically, all sound/audio equipment have humming..& how to cut this humming from going to the transceiver while TX..in this case, i have made one box, we called 'iBox'..all humming will be cut by some electronics inside the box..at the first i read at manual Equalizer, its will produce about +/-18db humming..& i was thinking how to make this noise not coming to my transceiver..have a very nice iBox done by W2IHY..it's so great ibox but i think another way how to homebrew it..with some idea given from somebody..i go to electronic shop to buy the thing..lucky they have it..i done the iBox about 1 hour..then i try..fuhhh!!! the is no humming/RF coming..this iBox cut about +/-23db..very happy & finally try to get 9M2ZAK to assist me to setting the audio..thanks ZAK for help..hehe..i will upload here some audio recorded done by ZAK soon..
Antenna farm
Hello! I am interested in building your copy of the iBox. Do you have a schematic please?
ReplyDeleteHi Ben, you can find at nu9n.com for the schematic design for iBox..
ReplyDeletenice web site ilike it hope u in good health all the best
ReplyDeletea61tt
ahmad
assalamualaikum bang...klu ibox utk vhf ada ke bang..maaf dgn pertanyaan sy yg masih br berminat..
ReplyDelete