O P E R A T I N G F O R M S
C H A P T E R 5
Simple
The following selections are possible:
Receiver 1:
ANT1 (default), ANT2, ANT3 or RX1 IN
Receiver 2
(if installed): N/C (not connected), RX2 IN, RX1 TAP (default) or ANT1
Transmit:
ANT1 (default), ANT2 or ANT3
Use RX1 Out to RX1 In Loop:
If either ANT1, ANT2 or ANT3 is selected for Receiver 1, then
this option becomes available to enable the insertion of external signal enhancing devices such
as preamps, filters and preselectors, without requiring complicated switching mechanisms to
avoid transmitting through them. Check to
o
Direct the signal on the selected antenna port to RX1 OUT and connect Receiver 1 to
RX1 IN
1
Earlier versions of the FLEX-5000, with the HRFIO board Assembly Number (ASSY) 27 installed instead of the later HRFIO
board ASSY 34, do not have ANT1 available as an option for Receiver 2. You can check which board is installed in your
FLEX-5000 by opening the Setup Form – General Tab, Hardware Config Sub-Tab, in the section marked FLEX-5000 Config. The
Assembly Number is shown between brackets at the end of the line beginning with RFIO (see e.g. Figure 64 on page 81). Also
see the Knowledge Center articles
HRFIO Capabilities by Assembly Number
How to Identify the HRFIO Assembly Number
Antenna Selection Options for the RX2
HRFIO
http://kc.flex-radio.com/search.aspx
).
If you have the earlier HRFIO ASSY 27, you can upgrade to ASSY 34. See the
) for more information.
2
For the earlier RFIO board ASSY 27 (see above), the 6m transmit antenna port is fixed to ANT3 and cannot be changed. Only
the ANT3 port meets the -60dBc spurious output requirement at 6m. For the later HRFIO ASSY 34, this is not the case and the
6m transmit antenna port can be assigned to any of ANT1-3, just like any other band.
150
2003-2008 FlexRadio Systems
Figure 144: Antenna Selection Form - Simple
