102 ELECRAFT
Transverter Bands (TRN1/TRN2/TRN3)
Three user-definable bands are provided for use with transverters.
Once enabled individually using the T R N 1 - 3 menu entries, these
bands will appear in the band rotation following 10 meters.
Transverters themselves must be supplied by the builder, and can be
mounted internally or externally to the K2.
Transverter switching: If you have more than one transverter,
you can switch their power and RF connections manually. However,
the K60XV option (60 meter adapter and low-level transverter I/O)
can be used to do automatic selection of up to three transverters.
The K60XV has one logic output for each transverter band, which
can turn on a small relay or a relay drive transistor. Refer to the
K60XV manual for further details.
Transverter configuration: Several parameters can be set up on
each band using the T R N 1 - 3 menu entries. First, tap
M E N U , select
the secondary menu (S E C ) using
D I S P L A Y , and scroll to T R N 1 ,
2 , or 3 as desired. Next, hold
E D I T to highlight the first parameter.
You can then tap
D I S P L A Y to rotate through the parameters.
Finally, change the parameters as needed using the VFO knob or
B A N D + / B A N D - . Changes take effect when you exit EDIT mode.
O N / O F F Set to O N to have this transverter band
appear in the band list
R F Transverter operating frequency (0-999
MHz; GHz digits not used)
I F K2 band to use as the I.F. (7, 14, 21, or 28
MHz)
19
O F S Display offset (+/- 9.99 kHz); calibrate
based on transverter oscillator offset, if any
O U T Power output (set to P O T to use the
POWER pot, or set fixed level, 1 . 0 -1 5 . 0
watts).
19
When you first select a different I.F., the displayed A and B VFOs may
end up outside the intended RF band. To correct this, tune the VFO up or
down to the desired frequency, or use direct frequency entry.
Using transverter bands: When you switch to a transverter band
(using
B A N D + / B A N D - ), the message T R N 1 , 2 o r 3 is flashed.
The LCD shows up to 999 MHz by shifting one place to the right,
except with 10-Hz tuning. In the 10-Hz case, the hundreds of MHz
digit isn't shown.
Direct Frequency Entry on transverter bands is in-band only. For
bands over 99 MHz, the first digit is made part of the prompt. For
example, on a transverter band in the 430 MHz range, you'd see
- - - - 4 when you hold
B A N D + and B A N D - together to initiate
Direct Frequency Entry. To get to 432.100 MHz, you'd then enter
3 2 1 0 0 .
Controlling transverter relays: The 8R HOLD feature can
prevent excessive transverter relay switching in CW mode. To
change the 8R HOLD setting, locate the T - R menu entry (primary
menu), edit the parameter, and tap
D I S P L A Y to select 8 r h o l d .
(This is the default setting and is recommended for use in all
operating modes, whether or not transverters are used.)
Using the K60XV option with transverters: In addition to 60
meter coverage, the K60XV option provides a low-level, split
RX/TX path transverter interface
20
. This interface can be selected
on a per-transverter-band basis. The K60XV also provides a
buffered relay keying output, and individual logic outputs for each
of the three transverter bands. (Refer to the K60XV manual.)
ATU considerations: Use caution when connecting both a
transverter and an HF antenna to the KAT2: you could
accidentally transmit at high power into the transverter. For
example, suppose that you have T R N 1 set up for an I.F. of 14
MHz and a 1.0-watt power limit. If you switch the K2 to 14 MHz--
where there is no power limit--you must remember not to transmit
into the KAT2 antenna jack that is connected to the transverter.
20
Planned for December, 2002 or later. Check our web site for availability of
this option.
To Next Page
Loading...
