The Maycom BS-27 transceiver is marketed by Maycom of Korea as a very advanced all mode CB base station transceiver with VFO operation. It has two selectable antenna outputs, orange LCD readout, key board entry, ANL, Hi Cut, Roger beep, scanning, memories, digital readout S meter, mic and RF gain, clarifier and cal, cont. RF power VR, NB, TX Shift, DTMF, Volume and Squelch, page, step, up down buttons. A four step dimmer lamp function. Dual Watch Function. It has 25 watts variable out put on SSB and 1-10 watts on AM - 2SC2166 x 1, 2SC1969 x 2. Built in power supply. Microprocessor: LC72338.
It is marketed in Europe as the Stabo XF-9082 professional ans also elsewhere as the Superstar SS-4900, they are all the same radio.
So you may ask why the fuss over a glorified CB radio. Ahh, this is where you are wrong. I somehow beleive that the engineers at Maycom are hams and the rig can be changed for "full entire coverage" from 24MHz through to 30MHz!!!! Yes, you have a transceiver that covers 24MHz, 28 and 29MHz! Neat!
So how is this accomplished, easy push the EMG button whilst you turn the power on and presto you have full band coverage! It is a nice base station to have for 24 and 28MHz. I hope the people at Maycom are listening and reading this, it is time for you guys to design something for 50MHz! Or may be a combined all mode transceiver that covers 50MHz and 70MHz (6 meters and 4 meters).
It is marketed in Europe as the Stabo XF-9082 professional ans also elsewhere as the Superstar SS-4900, they are all the same radio.
So you may ask why the fuss over a glorified CB radio. Ahh, this is where you are wrong. I somehow beleive that the engineers at Maycom are hams and the rig can be changed for "full entire coverage" from 24MHz through to 30MHz!!!! Yes, you have a transceiver that covers 24MHz, 28 and 29MHz! Neat!
So how is this accomplished, easy push the EMG button whilst you turn the power on and presto you have full band coverage! It is a nice base station to have for 24 and 28MHz. I hope the people at Maycom are listening and reading this, it is time for you guys to design something for 50MHz! Or may be a combined all mode transceiver that covers 50MHz and 70MHz (6 meters and 4 meters).
1. GENERAL
FREQUENCY COVERAGE ......................... 26.965 TO 27.405 MHz
FREQUENCY GENERATION ...................... BY MEANS OF PLL SYNTHESIZER
FREQUENCY STABILITY ........................... +/- 0 . 0 0 1 %
OPERATING MPERATURE .........................-10℃ TO +55℃
POWER SOURCE REQUIREMENTS ........... AC 230V/60Hz or DC 16V
ANTENNA IMPEDANCE ............................ 50 ohm Unbalanced
MIC IMPEDANCE ..................................... 2000 ohm
2. RECEIVER SECTION
CIRCUIT TYPE .............................. DUAL CONVERSION SUPERHETERODYNE
IF FREQUENCY ............................ 1'st IF : 10.695MHz , 2'nd IF : 455KHz
SENSITIVITY ......FM:0.5uV FOR 20dB SINAD,With CCITT FILTER/ AM:0.7uV FOR 10dB NQ/ SSB:0.15uV FOR 10dB NQ
SPURIOUS & IMAGE REJECTION ................60dB Min
INTER MODULATION DISTORTION ..............54dB Min.
S / N RATIO .............................................40 dB
AUDIO OUTPUT @10%THD ........................2.0 W
3. TRANSMITTER SECTION (Published)
POWER OUTPUT ............................SSB(A3J):25Watts. AM(A3E):1-10Watts. FM(F3E):10Watts
MODULATION .................................FM :2KHZ, AM : 8 5 %
HARMONIC OUTPUT .......................More than 40Dbbelow peak power output
S / N RATIO ..................................40dB
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