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Last modified 2024-11-26

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Uniden (President) Madison (Version 4)

A picture of Uniden (President) Madison (Version 4)

SPECIFICATIONS

GENERAL
Type:Citizen band transceiver
Frequency range:26.965-27.405 MHz
Channels / tuning steps:40
Mode:AM / SSB
Frequency control:PLL (MB8719)
Frequency stability:0.001% @ -20 to +50°C (-4 to +122°F)
Clarifier or Delta tune:±1.25 KHz
Power supply:Mains: 117 VAC ±5%
or 13.8 VDC
Current drain / power consumption:RX: 1-2 A @ 13.8 VDC
TX: Max 3 A @ 13.8 VDC
Antenna impedance / connector:50 ohm / SO-239
Dimensions (W*H*D):378*119*287 mm (14.88*4.69*11.31"), radio only
Weight:6.58 Kg (14.5 lb), radio only
Other features: PA. ANL/NB. Channel 9 button. Digital alarm clock. Dimmer.
AWI. SWR-meter.




RECEIVER SECTION
Receiver system: Single conversion superheterodyne
IF: 7.8 MHz (SSB) - 455 KHz (AM)
Sensitivity: AM: 0.5 uV (10 dB S+N/N)
SSB: 0.25 uV (10 dB S+N/N)
Squelch sensitivity:Less than 0.5 uV (Treshold)
Selectivity: AM:
?
SSB:
2.2 KHz (-6 dB)
7.5 KHz (-60 dB)
Image rejection:60 dB
AF output power / speaker:3 W at 10% distortion / External only
External speaker connector:Two TS "Minijacks" (3.5 mm), 8 ohm




TRANSMITTER SECTION
RF output power: AM: 4 W
SSB: 12 W (PEP)
Modulation system:
Max FM deviation (Factory set):No FM
Spurious emissions:Better than -? dB
Microphone impedance / connector:? ohm / 5-pin (Male locking ring jack)
Microphone input level:? mV




MISCELLANEOUS
Manufactured:Taiwan, 1983-198x (Discontinued)
Main PCB:PC-411AD by Uniden
Sub PCBs: PC-541AB - Clock board
PC-570AB - Power supply board
and others...
Additional info: Changes from version 3 is basically the move to a modern
digital alarm clock.
Related documents: User manual (421 KB)
PLL: MB8719
Market(s) / Approval(s): USA
FCC ID: 1010002
Sams Photofact #:None
Modifications and fixes:
Reviews:
Options / Accessories:
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