Built 222 mHz.
Electric MASTR II Repeaters
220 Ham Band
GE MASTR II High-Band mobile converted to 222 mHz.
NOTE: Not available on
pairs 223T940/222R340 thru 224T060/222R460
Items supplied with basic repeater:
This is a conversion of a mobile radio to repeater. The lock
is removed and the receiver RF connection takes the place of it.
A length of heavy duty #10 siamese wire (red/black) is supplied for
the power cord. A variety of interface options (DB-9, plain old wire
tail, barrier terminal block) are available for connecting an outboard
controller. This repeater can also be build to include a NHRC internal
controller. The addition of a NHRC/M2 controller makes a really nice
package as everything is built internally and the repeater basically becomes
'plug-n'play'. No duplexer is supplied.
The repeater will require a 20 amp Linear Power supply or equivalent
just to run the repeater. If an add on RF Power Amp is going to be
used, please allow for the additional current consumption accordingly.
Astron's are good because of their over-voltage protection. We don't
recommend switching supplies on repeaters.
We use an IFR-1200 A Service Monitor and Cushman CE-15 Spectrum Analyzer
in verifying performance on our conversions. We have the manual on
the PLL MASTR II exciter, so we can supply the data on that transmitter.
We choose to use the Japanese power brick for the transmitter PA because
it is simply too hard to convert the high-band PA to 220 and have repeatable
performance, efficiency, and purity specifications. The 25 watt brick
is rated continuous duty at this power level.
The information in these sites would be used to convert the radio to
222, full duplex:
The Step-By-Step GE MASTR II Conversion
GE MASTR II Infosite.
220 conversion of the MASTR II.
Basic MASTR II Mobile radio converted to 220 repeater $750.00
All sales subject to the Terms
outlined on this page.
(If you don't see your option listed here, e-mail us for pricing and availability!)
We also convert user supplied radios.
PLL type exciter, add $100.00
Temperature Compensated channel ICOM's for TX and RX from Bomar, add $75.00
Link Comm RLC-MOT MICOR noise squelch board, installed and configured,
w/voice, installed, add $190.00
NHRC-4/M2 linking controller
installed, add $190.00
Additional controllers / controller connections available upon request
If CTCSS is desired, an optional Com Spec TS-64DS is available to be installed
and set up to filter the tone on repeat audio and encode on the repeater
transmitter, add $75.00
A TS-32 option is available for those who don't need Reverse Burst, add
We have had excellent results with the Ramsey preamp kits. These
will add an additional 5 to 6 dB of usable sensitivity. These can
be mounted inside the radio set. This option is available built,
installed, and tuned, add $45.00
You can deduct $50 from the stated price of the repeater as referenced
above if you ship your working radio (with ICOMS)
to us for conversion.
Thanks for your interest in our custom built repeaters. Let
us know if we can help you out.
Scott @ (814) 444-9460
(Weekdays during normal business hours)
or email Scott at:
Copyright © 2001-2008 W3KKC
Last updated: 2/27/08 MSZ