![]() ![]() Tap Tone Control and then tap TX with your finger. Push the MENU button on the front of the Icom 7300. It is possible to set the transmission pass bandwidth of wide, mid, or narrow, by changing the lower and higher cutoff frequencies. Look at the Icom 7300 Full Manual on page 12-3. Icom 7300 Transmit Bandwidth TBW Customizable Values ![]() ![]() The full manual can be downloaded from here. Look at the Icom 7300 Full Manual on page 4-14. Tap TBW with your finger on the LCD and it will change from WIDE to MID and then NAR. Push the FUNCTION button and a menu pops up (pictured above). The transmit filter widths are set using the FUNCTION, “hard button”, on the front of the Icom 7300. These filter widths are adjustable also, but that’s another story. Tap the FIL with your finger and you will see it change from FIL to FIL2 and then FI元. The receive filter width (not pictured) on the Icom 7300 is set using the FIL “soft button” on the LCD screen. Another friend of mine, Andy, WB0OAF, reminded me that these are confused at times. Icom 7300 Transmit Bandwidth TBW – WIDE MID NARĭo not confuse transmit filter width with receive filter width. The comment: “I read that some say “for DX, use a narrow bandwidth” whereas another says “Narrow setting does not work well for DX”. Problem is, I can’t figure how to “set:” the bandwidth they’re talking about.” I had an excellent question posed to me in a comment and it got me thinking about TBW and the customizable values. ![]()
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