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Last modified 2025-08-11

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President Madison (Version 2, Euro 80)

A picture of President Madison (Version 2, Euro 80)

SPECIFICATIONS

GENERAL
Type:Citizen band / "Freeband" / Export transceiver
Frequency range: 26.965-27.855 MHz in two bands:
Low:   26.965-27.405 MHz
Hi:   27.415-27.855 MHz
Channels / tuning steps:80
Mode:AM / FM / 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: 220 VAC (Fixed power cord)
or 13.8 VDC (Male 3-pin jack)
Current drain / power consumption:RX: 1 A @ 13.8 VDC (Squelched) or 45 W @ mains (Squelched)
TX: Max 3 A @ 13.8 VDC or 100 W @ mains
Antenna impedance / connector:52 ohm / SO-239
Dimensions (W*H*D):Transceiver: 378*119*287 mm (14.88*4.69*11.31")
Speaker: 146*119*287 mm (5.75*4.69*11.31")
Weight:Transceiver: 6.58 Kg (14.5 lb)
Speaker: 1.59 Kg (3.5 lb)
Other features: PA. SWR-meter. AWI. Rotary alarm clock with sleep timer.




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)
FM: ? uV (12 dB SINAD)
SSB: 0.25 uV (10 dB S+N/N)
Squelch sensitivity:Less than 0.5 uV (Threshold)
Selectivity: AM/SSB:
2.2 KHz (-6 dB)
7.5 KHz (-60 dB)

NB! This is according to the original manual. It's normal
for SSB, but very narrow for AM. Is this a typo?
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
FM: 4 W?
SSB: 12 W (PEP)
Modulation system:
Max FM deviation (Factory set):±? KHz
Spurious emissions:Better than -? dB
Microphone impedance / connector:? ohm / 5-pin (Male locking ring jack)
Microphone input level:? mV




MISCELLANEOUS
Manufactured:Taiwan, 197x-198x (Discontinued)
Main PCB:PC-411AD by Uniden
Sub PCBs: PC-006EB - PSU board
and others...
Additional info: Same as version 2 in the US, but apparently factory modified for the European market.
Modifications include:
New mains transformer for 220 VAC.
FM board added. The normal mode switch now indicates AM/FM in the leftmost
position, and the former NB/ANL switch is now used to select AM or FM. The
former channel 9 LED now indicates FM mode instead.
80 channels instead of the normal 40. Selectable with the former channel 9 switch.

Does anyone know how many modified Madisons were actually sold in Europe?
Related documents:
Market(s) / Approval(s): Europe
No known approvals
Sams Photofact #:
Modifications and fixes:
Reviews:
Options / Accessories:
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A rear picture of President Madison (Version 2, Euro 80)