119
Cannot hear stereo audio in diversity mode: If you're using dual
external speakers, set MENU: Speakers, External to 2. If using
headphones, set MENU: Speaker + Phones to OFF.
"+60" S-meter label changes to "OVF": This indicates that the received
signal level being presented to the K4's A-to-D converter may be
excessive. It could be due to extremely strong signals occurring
anywhere within the range of the band-pass filter, which may be
outside the range you can see on the panadapter or hear in received
audio. If you're using a basic K4 with the receivers set to two different
bands, the band-pass filters will be bypassed, exposing the receiver to a
wider frequency range. (This does not occur on a K4D or K4HD, since
these models have two full sets of band-pass filters.)
If the excess-signal indication happens frequently, use a lower preamp
gain setting and/or turn on the attenuator (3 to 21 dB steps). The K4
can also insert an appropriate amount of attenuation automatically;
see RX Auto Attenuation.
Note: The RF gain control sets digital gain within the DSP; it does not
affect front-end gain. To reduce front-end gain (ahead of the ADC), you
must change preamp and/or attenuator settings.
"COR" indication seen on S-meter, or relay heard switching during
receive: Each of the K4's receivers has a Carrier Operated Relay (COR)
to provide protection from nearby transmitters. When the "COR"
indication is present, receive gain will be greatly reduced. To eliminate
the problem, reorient or move your antenna (or that of the
transmitting station), or reduce power level.
Can't select different ATU antennas for the main and sub receivers:
Only one ATU antenna at a time can be designated as a receive-only
antenna. See RX Antennas.
To Next Page
Loading...
