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How to use the FM Repeater Mode
How to use the FM Repeater Mode
How to use the FM Repeater Mode
How to use the
FM
Repeater Mode
System Dependencies
Minimum
PowerSDR
Version:
2.1.5
Applicable Hardware:
All FlexRadio Systems SDRs
Content provided by:
FlexRadio Systems Engineering
With the release of
PowerSDR
v2.1.5, a repeater operation feature or "repeater mode" has been added that enhances the
FM
mode of operation. When operating
FM
, you now have the ability to select
Simplex
mode, where the
RX
and
TX
frequencies are the same, or you may select a positive (+) or negative (-) frequency offset that automatically enables the Repeater Mode. These controls are available from the main console when
FM
mode has been selected. See the area outlined in red in
image
below.
PowerSDR
v2.1.3 Console in
FM
Mode
In the
image
above, you will notice in the
red
square the
FM
mode specific controls. The three buttons in a row labeled
[-] [
Simplex
] [+]
determines
if
the radio is operating in
FM
Repeater mode. The field above these controls,
RPTR Offset (
MHz
)
is where you enter the frequency offset for the particular band you are operating. In this example, the radio in in
FM
Repeater mode with a
positive
frequency offset of 0.600
MHz
.
When transmitting in Repeater Mode, you will see the actual transmit frequency displayed in
VFO
-A, giving you a visual reference to what frequency you are transmitting on.
In this mode of operation there is no need to set
SPLIT
.
If
you do set
SPLIT
to ON, then
PowerSDR
it taken out of Repeater Mode, the Repeater Mode Offset is no longer being recognized and
SPLIT
is active, transmitting on the frequency shown in
VFO
-B.
NOTE: The Repeater Offset is not set automatically based on the receive frequency, so you must determine the whether or not the offset is positive or negative and the frequency of the offset.
For most cases, the offset band plan in the US for 2 meters follows these guidelines. Please verify that this band plan is applicable for the repeaters that you plan to work
The offset is ±600
KHz
, the deviation is 5
KHz
At 145.000 through 146.999
MHz
, as shown on the Panadapter while receiving,the
transmit frequency
is 600
KHz
below
the receive frequency; this is a
negative
offset.
At 147.000
MHz
and above, as shown on the Panadapter while receiving, the transmit frequency is 600
KHz
above
the receive frequency; this is a
positive
offset.
This KB article may reference additional files that are available on the FlexRadio Systems web site Downloads page. Please use the URL(s) below to download the referenced materials.
An Adobe Acrobat Reader may be required to open the file.You can download Adobe Acrobat from here.
KB Source Document(s):
None Referenced
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Details
Last Modified:
Monday, July 18, 2011
Last Modified By:
Administrator
Type:
HOWTO
Rated 5 stars based on 1 vote
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