March 19, 1998 |
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| New Mirex Filter project arrives on
Mir |
The Progress 38 cargo
rocket delivered the new Mirex-DCI antenna filter
to the Russian Mir space station this week.
The filter will be used to prevent interference to the 2-meter
PMS Amateur Radio Station.
It is important to note, that the Amateur radio station does not
cause interference, it is receiving interference.
One of the commonly used commercial radios on Mir is using a
channel very close to the 2-meter 145.985 frequency.
When the commercial radio is transmitting, the Amateur Radio
station is unable to receive weak signals from hams on earth.
The Mirex-DCI filer is a custom designed antenna cavity filter
which will block the offending signal with a combination of pass
band and knotch filters.
The filter system is tentatively planned for installation in the
April/May time frame.
The Mirex team would like to thank all of the supporters of the
filter project.
It proves again that working together, we can make it happen.
Special Thanks to:
DCI Digital Communications Inc.
SAFEX
SAREX Working Group
February
1998
Moscow has received all of the required paper work for the new
DCI filter.
Mirex and Sarex teams provide documentation, Filters, and flight
quality cables to RKK.
The filter and cables were designed to match the cable connectors
in the Mir Core module.
The RKK engineers deiced to add an extra adapter cable to the
project to allow the filter to also be used in other modules.
The entire project will weigh approximately 3 kilos.
The tentative plan is to launch the Filter on the March
Progress cargo rocket. (of course, RKK reserves the
right to bump the project for other higher priority experiments)
When the filter is installed, the 2-meter PMS radio station will
be able to operate at the same time the other VHF commercial
radio is transmitting.
CONNECTED to R0MIR-1 [30-Jul-97 03:45:58]
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Msg # Stat Date Time To From @ BBS Subject
158 P 07/30/97 10:37 WF1F R0MIR filter
CMD(B/H/J/K/KM/L/M/R/S/SR/V/?)>
Stat : PR
Posted : 07/30/97 10:37
To : WF1F
From : R0MIR
@ BBS :
BID :
Subject: filter
Miles, you are doing great work for the project. I hope you enjoyed your
vacation. The filter will get here eventually. Mike.
CMD(B/H/J/K/KM/L/M/R/S/SR/V/?)>
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