11
gateway (145.75 MHz, just across the street at Hughes). Set the IC-7100’s frequency.
3
In
the Winlink Express session window, the connection type should be “Direct” (in other
words, we are not using digipeaters to reach the gateway since these gateways are within
simplex range of the hospital). Type the callsign into the connection box, and click
Start.
After a few seconds, the radio should begin transmitting and establish a connection with
the Gateway. You are off to the races!
You can also try these other stations:
Call Sign
Frequency
Location
WA3SWJ-10
145.750
Potomac, MD (Bruce may be able to point
a beam antenna at the hospital upon
request)
WA3YOO-9
145.75
Ashton, MD
WA3YOO-10 145.75
Germantown, MD
W3LRC-10
145.750
Laurel, MD
W3PGC-10
145.750
Landover Hills, MD
W3AAC-10
145.010
Millersville, MD (AA Co)
N2LEE-10
145.730
Herndon, VA
4
Unfortunately, the hospital is surrounded by substantial ridges in virtually all directions.
This makes simplex VHF/UHF communications a bit of a challenge. You may or may not
be successful in reaching the stations listed above, except for WA3YOO-10, which is
literally across the street from the hospital.
In a pinch, you should be able to establish a packet peer-to-peer (PTP) connection with
another local station to relay any critical message traffic. It is also possible to make a
Winlink connection over any of the RMS Gateway stations listed above, or even over a
conventional FM repeater. (You may need to increase the TxDelay setting to several
hundred milliseconds when operating over a voice repeater.) In an emergency, when the
MCACS station at the Montgomery County EOC is activated, you can contact WA3YOO
to request assistance in relaying Winlink messages.
Version
Date
Description
1.0
4/11/2015
First draft
1.1
4/11/2015
Corrected channel assignments chart and added instructions for programming
a memory
2.0
11/28/2015 Information added on Winlink operation
3.0
12/29/2017 Updated Winlink information
4.0
??
??
5.0
10/1/2018
Updated RMS gateway list
5.1
4/4/2019
Minor edits to Winlink and memory programming sections.
3
Note that the Winlink Express program does not tune the radio when you switch to a different gateway
station. This must be done manually.
4
If you cannot connect to N2LEE-10 directly, try digipeating through the RESTON digipeater.
