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Last modified 2025-11-10

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President Ronald (Later version) and Ronald 10/12 m (Early version), TXPR500

A picture of President Ronald (Later version), TXPR500

SPECIFICATIONS

GENERAL
Type:Citizen band / "Freeband" / Export transceiver
Frequency range: Export mode
24.715-30.105 MHz
10/12 m mode (Early version)
24.890-24.990 / 28.000-29.700 MHz
10 m mode (Later version)
28.000-29.700 MHz
Channels / tuning steps: Export mode: 480
VFO: 100 / 10 / 1 KHz and 100 Hz
Mode:AM / FM
Frequency control:PLL
Frequency stability:?%
Clarifier or Delta tune:No
Power supply:13.8 VDC (Fixed power cord)
Current drain / power consumption:RX: Max 500 mA
TX: Max 7 A
Antenna impedance / connector:50 ohm / SO-239
Dimensions (W*H*D):125*45*175 mm (4.92*1.77*6.89")
Weight:900 g (1.98 lb)
Other features: PA. ANL/NB. SWR meter. Tone hi-cut. 7 selectable display
colors. Dual watch. Roger beep. ASC. Talkback. Echo. Scanning.
Programmable emergency button. Channel and frequency display.




RECEIVER SECTION
Receiver system: Double conversion superheterodyne
1st IF: 10.695 MHz
2nd IF: 455 KHz - Ceramic filter: LT455HT
Sensitivity: AM: 0.7 uV (20 dB SINAD)
FM: 0.35 uV (20 dB SINAD)
Squelch sensitivity:Less than 0.2 uV (Threshold)
1 mV (Tight)
Selectivity:60 dB (Adjacent channel)
Image rejection:60 dB
AF output power / speaker:3 W at ?% distortion / ? ohm
External speaker connector:TS "Minijack" (3.5 mm)




TRANSMITTER SECTION
RF output power: AM: 13 W carrier/dead key (50 W PEP)
FM: 35 W
The output power is adjustable
Modulation system:
Max FM deviation (Factory set):±? KHz
Spurious emissions:Better than -? dB
Microphone impedance / connector:? ohm / 6-pin (Male locking ring jack)
Microphone input level:3 mV




MISCELLANEOUS
Manufactured:China (Early), 2018-2019 (Discontinued)
China (Later), 2020-202x
Main PCB: PP802_1/4 by ?
Double sided with mostly SMD components
Sub PCBs: PP802_2/4 - Front panel board
PP802_3/4 - ? board
PP802_4/4 - ? board
Additional info:
Related documents: User manual (2.2 MB, Multilanguage)
RF driver: IRF520
RF finals: Two IRF520
Known markets and approvals: No known approvals for CB use
Sams Photofact #:None
Modifications and fixes:
Reviews:
Options / Accessories:
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A picture of President Ronald (Early version), TXPR500