5
example, if you are operating on 40 meters at 7.030.200 MHz on VFO A in narrow band CW and
change bands to 14.258.500 MHz on VFO B to listen to SSB, then go back to VFO-A on 40
meters, the previous 40-meter frequency, mode, and VFO settings will be restored because
they were remembered in the short-term RAM - you will be right back on 40 meters where you
left it the last time. All of the information for each of the bands will be remembered as you
move between bands. Once power is removed, however, this information is lost, except for the
band and the VFO (A or B) that were active when power was removed. When power is restored,
the TR-45L will switch to the last used band and VFO but will default to the frequency and mode
that is stored in the EEPROM for that VFO.
This EEPROM information may be rewritten at any time by holding the VFO A/B switch down
until the display backlight goes off. If upon power-up, you want the TR-45L to return to the
operating frequency and mode it was set to when powered down, simply save the current
frequency and mode in the EEPROM memory before turning the power off. To do this, simply
hold down the VFO selection switch for about 2 seconds until the backlight goes out and
release the switch. Then turn off the power switch. When you power back up, you will be right
where you were when power was last turned off.
Opposite Sideband Selection
The TR-45L defaults to the standard convention of lower sideband use below 10 MHz and
upper sideband above this frequency. Operation on the opposite sideband is offered for utility
purposes only and is not recommended for normal use because receiver image rejection
suffers, and additional spurs could be encountered.
To select the opposite sideband, toggle up and hold the RIT switch for a few seconds. The
sideband selection in the display can be observed to change. A second longer actuation of the
RIT switch will return the receiver operation to the normal sideband.
9/22/23022
Instructions are not complete. Keep checking the WA3RNC.COM web site for updates to the
instructions.
