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Last modified 2022-05-05

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President Jackson (Mk2)

A picture of President Jackson (Mk2)


Type:Citizen band / "Freeband" / Export transceiver
Frequency range: 25.615-28.315 MHz in six bands:
A:   25.615-26.055 MHz
B:   26.065-26.505 MHz
C:   26.515-26.955 MHz
D:   26.965-27.405 MHz
E:   27.415-27.855 MHz
F:   27.865-28.305 MHz +10 KHz
Channels / tuning steps:271 (Including +10 KHz channels)
Mode:AM / FM / SSB
Frequency control:PLL (MC145106)
Frequency stability:?%
Clarifier or Delta tune:Coarse (RX/TX): 5 KHz
Fine (RX): 1.25 KHz
Power supply:11.7-15.9 VDC (3-pin connector)
Current drain / power consumption:RX: 0.5-1.3 A
TX: Less than 4.5 A
Antenna impedance / connector:50 ohm / SO-239
Dimensions (W*H*D):200*60*260 mm (7.9*2.4*10.24")
Weight:2.2 Kg (5 lb)
Other features:PA (Non ASC only). +10 KHz switch. ANL/NB. Roger beep.

Receiver system: Single conversion superheterodyne (AM/SSB)
IF: 10.695 MHz
Double conversion superheterodyne (FM)
1st IF: 10.695 MHz
2nd IF: 455 KHz
Sensitivity: AM: 0.5 uV (10 dB S+N/N)
FM: 0.5 uV (20 dB S+N/N)
SSB: 0.15 uV (10 dB S+N/N)
Selectivity: AM/SSB: 4.2 KHz (-6 dB), 7.5 KHz (-60 dB)
FM: 7 KHz (-6 dB), 15 KHz (-60 dB)
Image rejection:60 dB
AF output power / speaker:2.5 W at 10% distortion / 8 ohm
External speaker connector:3.5 mm, 8 ohm

RF output power: AM: 10 W
FM: 10 W
SSB: 21 W
Modulation system:
FM deviation (Factory set):1.5 KHz
Spurious emissions:Better than -50 dB
Microphone impedance / connector:600 ohm / 6-pin (Metal locking ring connector)
Microphone input level:? mV

Manufactured:Philippines (Early) and China (Later), 199x-20xx (Discontinued)
Main PCB:PB-042AE by Uniden
Sub PCBs:
Additional info: It appears that the early Mk2 did not feature ASC, while later Mk2
had an ASC module botched in along with a proper ASC faceplate.
Related documents: PLL: MC145106
RF final: MRF477
Sams Photofact #:None
Modifications and fixes:
Options / Accessories:
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