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Last modified 2022-02-05

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Ham International Jumbo 3

A picture of Ham International Jumbo 3


Type:Citizen band / "Freeband" / Export transceiver
Frequency range: 26.065-28.305 MHz 10 KHz in five bands:
-80:   26.065-26.505 MHz
-40:   26.515-26.955 MHz
40:   26.965-27.405 MHz
80:   27.415-27.855 MHz
120:   27.865-28.305 MHz
Channels / tuning steps:227 (5*40 + alpha channels)
Mode:AM / FM / SSB / CW
Frequency control:PLL (PLL02A)
Frequency stability:?%
Clarifier or Delta tune:Tune (TX/RX): 5 KHz
Clarifier (RX): 800 Hz
Power supply:Mains: 220 VAC (Fixed power cord)
or 13.8 VDC (2-pin connector)
Current drain / power consumption:RX: ? VA
TX: ? VA
Antenna impedance / connector:50 ohm / Two SO-239
Dimensions (W*H*D):405*150*300 mm (15.95*5.9*11.81"), without rack mounting handles
Weight:8.5 Kg (18.74 lb)
Other features: ANL/NB. Roger beep. Attenuator (20 dB). 10 KHz switch.
AWI. SWR-meter. External selcall option.

Receiver system: Single conversion superheterodyne (SSB)
IF: 10.695 MHz
Double conversion superheterodyne (AM/FM)
1st IF: 10.695 MHz
2nd IF: 455 KHz
Sensitivity: AM: 0.2 uV (10 dB S/N)
FM: 0.2 uV (20 dB S/N)
SSB: 0.14 uV (10 dB S/N)
Selectivity: AM/FM: 6 KHz (-6 dB)
SSB: 2 KHz (-6 dB)
Image rejection:
AF output power / speaker:2.5 W at ?% distortion / 8 ohm
External speaker connector:3.5 mm, 8 ohm

RF output power:

AM:6 W4 W500 mW
FM:6 W4 W500 mW
SSB (PEP):13 W10 W4 W
CW:6 W4 W500 mW
Modulation system:
FM deviation (Factory set):1.5 KHz
Spurious emissions:Better than -? dB
Microphone impedance / connector:? ohm / 4-pin (Metal locking ring connector)
Microphone input level:? mV

Manufactured:Japan, 198x-199x (Discontinued)
Main PCB:PTBM133A4X by Cybernet Electronics Corporation
Sub PCBs: PTLD095AOX - LED channel display and indicators board
PTPW007COX - PSU/AVR board
PTSR023AOX - SWR/AWI and antenna A/B relay board
PTSW151AOX - Channel selector board
PTSW152AOX - Lever switches board
Additional info:New price 1989 in Sweden: SEK 4700:-
Related documents:PLL: PLL02A
Sams Photofact #:None
Modifications and fixes:
Options / Accessories:
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