User manual
Mailing: PO Box 3526, Bellevue, WA. 98009
Shipping: 13737 SE 26
th
St. Bellevue, WA. 98005
Toll Free: 800-259-7331 * Phone: 425-746-6310 * Fax: 425-746-6384
www.sgcworld.com * Email: sgc@sgcworld.com
3
NOTICES
READING THIS MANUAL: The most important sections to
read in this manual are MAC-200 SETUP (section XX) and
MAC-200 OPERATION (section XX). All users should read
and understand this material. Other information such as
Theory of Operation is provided for those who want to
understand their new MAC-200 more completely.
ATTENTION: The MAC-200 RF Path is interrupted when
power is off in both receive and transmit modes. To prevent
damage to transceivers, do not operate with power off to this
device.
NOTE: For efficient operation of the MAC-200, apply 12
VDC from the same power supply as the transceiver.
Mailing: PO Box 3526, Bellevue, WA. 98009
Shipping: 13737 SE 26
th
St. Bellevue, WA. 98005
Toll Free: 800-259-7331 * Phone: 425-746-6310 * Fax: 425-746-6384
www.sgcworld.com * Email: sgc@sgcworld.com
4
Table of Contents
1
INTRODUCTION ...............................................................6
2 TECHNICAL SPECIFICATIONS ....................................8
3
MAC-200 SETUP ................................................................9
3.1 MECHANICAL DESIGN ..................................................9
3.1.1 Opening the MAC-200............................... 9
3.2 CONNECTIONS TO THE MAC-200 ................................12
3.2.1
12 VDC Power .........................................12
3.2.2
RF Input from your transceiver .................14
3.2.3
Chassis Ground .......................................14
3.2.4
Connecting Antennas to the MAC-200......15
3.3
A
NTENNAS AND THE
MAC-200..................................19
3.3.1
Optimum Coupling....................................19
3.3.2
Connecting Multiple Antennas ..................20
3.3.3
Balanced vs. Unbalanced Antennas .........21
3.3.4
Antennas with Feed Point Tuning .............22
3.3.5
Antenna Recommendations .....................22
3.3.6 Tips & Tricks ............................................32
3.3.7 References on Antennas ..........................33
3.4
THE GOLDEN RULES OF HF INSTALLATION................34
4 MAC-200 OPERATION ...................................................36
4.1
P
OWERING ON THE
M
AC
200 .......................................36
4.1.1 Backlighting..............................................36
4.1.2
Keytones..................................................37










