PRESIDENT JACKSON - CB radio - Transceiver
Click the above photo to see a larger photo.
Click the above photo to see a larger photo.
AM/SSB ALAN A120/D LINEAR AMPLIFIER 26-30 MHz 90/120 W PRICE 100Euro
12 Volt TX Linear Amplifier
High-quality transmitter amplifier with MOSFET, automatic RX/TX switching,
on/off switch, mode selector (AM/FM - SSB/CW), and control LED.
Technical Specifications:
Frequency range: 26-30 MHz
Input power: 0.5-5 W (AM/FM), 2-10 W (SSB/CW)
Output power: max. 90 W (AM/FM), 120 W (SSB/CW)
Operating modes: AM/FM/SSB/CW
Power supply: 12-14 V / 8-11 A
Fuse: 16 A
Dimensions: 109 x 125 x 40 mm
Weight: 380 g
Including data sheet and circuit diagram
Attention - Important notice!
Transmitter amplifiers are intended exclusively for use by licensed radio amateurs on the designated amateur radio frequencies.
Depending on the installation, amplifier type, power,
etc., an additional harmonic filter may be required to prevent TVI
interference for proper operation according to ETS 300684.
These filters are also available here from MWF-Service.
Before commissioning, please be sure to check the correct SWR ratio of the
antenna system you are using using a suitable SWR meter or a qualified
technician, and follow the instructions in the supplied documentation to
avoid damage to the amplifier, especially the transmitter output stage!
The antenna cable must not be damaged, and the antenna connectors must be
correctly installed (check for continuity and short circuits).
Furthermore, it is important to avoid any
additional antenna tuner changing the antenna's SWR when transmitting at
high power, as this can temporarily result in poor SWR values, which can
also damage the transmitter's power amplifier.
This means that the antenna's SWR setting may only be adjusted at low
transmission power (transmitter amplifier switched off/in bypass mode).
The amplifier must not be driven with excessive power, even for a short
time.
You should not transmit continuously for too long to prevent the amplifier
from overheating (max. 1 minute, then allow to cool down).
The amplifier's supply voltage must not be
exceeded.
Compliance with or non-compliance with these instructions is your
responsibility, particularly with regard to liability for defects. See also
our Terms and Conditions.
Owner Rudolf Bošnjak - E71RB, Sarajevo, Bosnia and Herzegovina.
| Type: | Citizen band transceiver | ||||||||||||
| Frequency range: | 25.615-28.315 MHz
in six bands:
|
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| Channels: | 271 (Including +10 KHz channels) | ||||||||||||
| Mode: | AM/FM/SSB | ||||||||||||
| Frequency control: | PLL | ||||||||||||
| Power output: | 10W | ||||||||||||
| Sensitivity: | N/A | ||||||||||||
| Selectivity: | N/A | ||||||||||||
| Image rejection: | N/A | ||||||||||||
| Voltage: | 13.8 VDC | ||||||||||||
| Current drain: | RX: Max ? A TX: Max ? A |
||||||||||||
| Dimensions (W*H*D): | 174*52*211 mm | ||||||||||||
| Weight: | |||||||||||||
| Manufactured: | 19xx-19xx | ||||||||||||
| Other: | |||||||||||||
| Related documents: |
There are different restrictions as to which mode and power output to use. In most european countries, AM, FM and SSB were used until recently.
The so called "freeband" is just about everything between 27.410 and 28.000, plus a 40 channel segment below 26.965. In these segments, many unlicensed individuals do their DX-ing, mainly on SSB.
Of course the legal use of these segments is probably extremely low, and therefore all this "freebanding", or maybe it is the other way around? There are quite a number of CB radios manufactured with the possibility of extended frequency coverage.
HOW TO MODIFICATE PRESIDENT CB-RADIOS http://members.tripod.com/~Malzev/cb-radio/index.htm
MODIFICATION FOR PRESIDENT JFK http://members.tripod.com/~Malzev/cb-radio/jfk_.htm
WINScanner Software http://members.tripod.com/~Malzev/radiodoc/software.htm
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