DIY599.com RF linear power amplifier with build-in antenna tuner (ATU) PA500 INSTRUCTION MANUAL operating frequency range between 3.5MHz-30MHz The device requires an amateur radio transceiver to operate.
connectors............................................................................................................................................... 3 getting started ........................................................................................................................................ 4 powering up ............................................................................................................................................ 4 LEDs and Button functions ....................
connectors left side there is no reverse polarity protection, incorrect wiring will destroy the device.
getting started Before using the PA500, you’ll need to connect a power source with a sufficient power. We recommend to use a power source (a battery or an AC/DC power supply) which can provide 12 to 16V and up to 10A of continuous current. there is no reverse polarity protection, incorrect wiring will destroy the device. The PA500 need to be connected to a transceiver. In the simplest case, a connection of the PTT signal from the transceiver is sufficient to control the PA.
LEDs and Button functions left side The correct Band must be selected, otherwise the PA will not transmit right side 5
device configuration good to know about BYPASS Mode - - if the PA is operated in the interface Mode 0 (simple PTT controlled) AND the PA is in the BYPASS Mode, Band-Filters are off, no LED indication for Filter status. if the PA is operated in the interface Mode 1-8 AND the PA is in the BYPASS Mode, Band-Filter LED shows the status of the selected Filter-Bank, but Band-Filters will switch off when the PTT is pressed. If the PA is in the BYPASS Mode, the Antenna Tuner is bypassed too.
manual band selection The PA500 has 4 Band selector settings 80m, 40m, 20m and 10m. Other Frequencies between these Bands can also be used. The table describes the selection that must be made for a specific Band to use.
compatible transceivers Transceiver model Interface type Interface# All devices* Manual mode* 0* All transceivers with PTT out Signal Yaesu FT817/FT818 CAT*** 1 Yaesu FT817/FT818 band voltage (PTT line is needed) 2 Elecraft KX2/KX3 CAT*** 3 ICOM IC-705 with WiFi/BT Dongle BT CAT/CAT 4 band voltage (PTT line is needed) 5 Xiegu G90/X5105 Band voltage (PTT line is needed) 6 Lab599 TX-500**** CAT*** 7 Kenwood**** ICOM (e.g.
operating modes and drive power operating mode SSB max. drive power PEP 3W**** peak drive power PEP 5W max. PEP RF power* 40W***** transmit duty cycle @ max. RF power periodic SSB max. 3min. continues carrier*** duty cycle 50/50 for 6min. *** ** AM 3W@12V/2W@16V 30W max. 3min. continues carrier*** duty cycle 50/50 for 6min. *** FM 3W@12V/2W@16V 30W** max. 3min. continues carrier*** duty cycle 50/50 for 6min. *** DIG 3W@12V/2W@16V 30W** max. 3min. continues carrier*** duty cycle 50/50 for 6min.
safety operating area SOA RF output power vs. RF input power RF output power in Watt @ 16V 80 70 60 50 40 30 20 10 0 temperature protection: RF output power reduction @ 75°C case temp. safe operation area RF output power vs. operating voltage input RF output power in Watt @5W RF Input 80 70 60 50 temperature protection: RF output power reduction @ 75°C case temp. 40 30 20 10 0 safe operation area Overdriving the PA leads to the harmonic distortion exceeding the permitted limits.
special transceiver characteristics some transceivers have specific characteristics associated with the operation of peripheral devices. Known characteristics in connection with the operation of the PA500 are listed here. Yaesu FT817/818 If the Yaesu FT817/818 is used with a CAT interface cable, the transceiver will not turn on if the PA500 has already been turned on. Therefore, make sure that the transceiver is always switched on first and then the PA500.
ELECRAFT KX3 12
available transceiver connection cable Yaesu FT-817/818 cable (for automatic Band selection) Lab599 TX-500 cable (for manual Band selection) Elecraft KX2 cable (for manual Band selection) Elecraft KX3 cable (for manual Band selection) Xiegu G90/X5105 (for automatic Band selection) ICOM IC-705 cable (for manual Band selection) 13
safety instructions The device can get very hot. It must be operated in such a way that there are no heat-sensitive objects near the device. Please ensure that the device is always well-ventilated during operation. Please be aware that the device is still hot for a while after use. Please keep the device away from children, the device develops a temperature level which can cause burns to the skin.
power considerations on the go The "Buddipole POWERmini USB" is a pocket-sized 12 VDC portable DC power management system with built in solar controller that is particularly suitable for portable operations. This device can deliver up to 32A at 12V. this makes it a suitable device for supplying your transceiver and the PA500 with power on the go. device specifications PA500 Amateur Radio Bands max. PEP RF output power (FM/AM(SSB/CW) RF power gain RF amplifier operation class Input impedance max.
GENERAL TROUBLESHOOTING fault description Unable to turn on your PA500 Antenna tuning function does not work / tuner does not tune Possible reasons power cord is not properly connected /or no power from the source power source is not capable to deliver the power internal fuse is open circuit solution Connect power source correctly to the device No antenna connected Connect a proper antenna usable for the operating frequencies of the PA500 Set it to auto-mode Or trigger a manual tuning event Set the dev
Device LABEL and ID location WARRANTY LIMITATIONS Any of the following will void the warranty applicable to the product and its accessories: A. Modification-, removal-, or maintenance of the internal circuitry, without permission and authorization; B. Unauthorized change of product’s embedded software; C. Immersion in liquid or signs of external damage; D. Warranty period expired; E. Product’s serial number is missing, torn or blurred so we cannot determine if the radio is under warranty; F.
Note Amateur Radio Operation DIY599.com is obligated as a manufacturer of amplifier devices to draw attention to the following legal provisions: The following restrictive conditions apply: This device is intended for use by radio amateurs within the meaning of the law on amateur radio in the valid amended. During operation of the device, the amateur radio law and supplementary laws and regulations must be observed.
