Albrecht AE-497W_25W User guide

User Manual

AE 497 W (25-30 W-Version)

10-Meter Amateur Radio Base Station

Legal notes and general information

This amateur radio base station complies to the minimum requirements of the EU directives 2004/108/EG (EMC), full fills the harmonized EU standards EN 301 783-2 (commercial available amateur radio products , EN 301 489-1 und-15 (EMC) und EN 60950-1:2006 (safety and LVD -directive 73/23/EWG) nad is marked with the CE logo.

Following conditions apply:

In all European countries this transceiver is subject to national amateur radio regulations. It may be used only by persons, who have obtained a valid amateur radio licence. Radio amateurs are only allowed to use this radio on assigned amateur radio frequencies within the 10 m band, even if this radio should be able to switch other adjacent frequencies. National regulations may exist for environmental RF protection and must be applied by the operator. It is not allowed to use this radio for any other purpose except amateur radio.

If this radio shall be used in a configuration with other accessory items or amplifiers, the radio amateur is responsible to keep the radiations within the legal limits of his licence class, especially he has to follow the rules and standards of the above mentioned EU directive and technical standards, especially EN 301 783-2. It may be necessary to add separate harmonics filters when combining to amplifiers or SWR meters or antenna switching devices.

This radio is not declared to be used in cars during motion, because we cannot declare that there is no possible influence on the electronic engine management. Please respect the automotive directive requirements, which request that such devices are not allowed to be connected to the car network as long as the car engine is running. These restrictions are only valid for passenger cars and trucks and do not apply to parking recreation vehicles, boats or other environments with 12 V power supply.

ALAN ELECTRONICS GMBH

The text of the English manual corresponds to international versions and is not in all parts equal to the German language user manual.

SPECIFICATIONS

GENERAL

Frequency Range …………………………………………………...28.000 to 29.699MHz Frequency Control ………………………………….Phase Lock Loop (PLL) synthesizer Frequency Stability………………………………………………………………… ± 300HZ Frequency Tolerance ………………………………………………………………0.0003% Emission Mode…………………………………………… A3E(AM), F3E(FM), J3E(SSB) Microphone ………………Electret type 6 pin plug, with PTT, up/down and coiled cord Input Voltage …………………………………13.8V DC nominal, 15,9V max. 12.0V min

230V AC Size (WDH)………………………………………………………………300 x 240 x 85mm Weight …………………………………………………………………………………..3,4Kg Antenna Connector…………………………………………. SO-239 50 ohm unbalanced Speaker……………………………………………………………………….8 ohm, 3 watts

TRANSMITTER

Power Output ……………………AM max. 7-8W, FM 25W-30 W, SSB 25W-30W PEP Spurious Emission …………………………………..……………….-36 dBm or – 60 dBc Current Drain No Modulation ……………………………………….FM/AM less than 4 A SSB …………………………………………………..…without modulation less than 1.0A Current Drain SSB with Modulation………………………………….SSB less than 4 A Modulation Frequency Response

(1 KHz, 0dB Reference)……………………….....Lower, at 450Hz, AM -6dB, SSB -6dB

Upper, at 2.5KHz, AM -6dB, SSB -6dB

Microphone Sensitivity …………………………………………..AM 2.mV for 60% mod

FM 1.8mV for 1.5 kHz deviation

Microphone Amplifier ………………….AM 50dB (between 89% and 80% modulation)

SSB 50dB (between 25 W PEP and 10W PEP)

RECEIVER Max Sensitivity for 6dB S/N………………………………… AM 0.5uV, FM/SSB 0.25uV Sensitivity for 10dB S/N ……………………………………..AM 0.5uV, FM/SSB 0.25uV Overload Audio Fidelity at 6dB Down ………………………………….450Hz ~ 2000 Hz Adjacent Channel Selectivity …………………..………………FM/AM 60dB, SSB 70dB Image Rejection (5.6MHz) ……………………………………Typically better than 90 dB IF Rejection …………………………………………………………………..70dB or better Max Audio Output Power …………………………………………..AM/FM/SSB 2.5 watts Squelch Range……………………………………………..Adjustable from 0.5Uv to 1mV Receiver Clarifier Range…………………………………………….…±1.25KHz Variable Dynamic Range………………………………………………………………… 65dB (SSB)

Overview: Knobs and Keyboard functions

4 5

10 11

1. POWER ON/OFF SWITCH

This switch turns the transceiver power on and off.

2. HEAD PHONE JACK

Connect head phone plug, Impedance > 32 Ohms, Mono

3. MICROPHONE INPUT

6 pin socket for Albrecht Standard Electret Hand Microphone

4. VOLUME CONTROL

Controls audio output level

5. SQUELCH CONTROL

Used to quiet the receiver during absence of receive signals Sensitivity to incoming signals is fully adjustable

6. POWER CONTROL Fine adjusting of the Transmit Output Power, down to 3 W FM/SSB or 0.5 Watt AM

7. CLARIFIER CONTROL

This control provides an adjustment for turning in stations which are slightly OFF frequency, to optimise the AM and SSB reception and transmission.

8. RF GAIN & MIC GAIN CONTROL

Control the receiver sensitivity by RF GAIN CONTROL (outer knob) to reduce interference. To decrease RF gain, turn the knob counter clockwise. For the maximum receiver sensitivity, the RF GAIN control must be rotated clockwise. MIC GAIN CONTROL (inner knob) This control provides the proper or desired modulation.

9. CHANNEL SELECTOR SWITCH

This Rotary switch selects the frequency steps. (Switch not active during transmission)

10. SWR CALIBRATION CONTROL

The calibration control provides (while keying transmitter) meter calibration adjustment enabling true standing wave ratio reference.

11. CAL/ SWR/ MOD SELECTION

This switch is used to select the scale to be read on the SWR/ Power Meter. The switch has three positions MOD (Modulation), CAL (Calibrate), SWR (Standing Wave Ratio)

KEYBOARD switches 12 - 19

Some of these switches have a double or even 3 way functions. Pressing the FUNCTION knob (17) before lets You select the second function of the key. In some cases the third function is selected automatically depending on Your logical actions before.

Primary function is indicated by “FUNCTION OFF:” This means no FUNC button shall be pressed

Second function is indicated with “ FUNCTION ON: “ This means that You must press the FUNC button shortly before using the desired button.

• Third function is always indicated in this way

12. MODE / LOW / MEMORY 5 SWITCH

Double function button: without pressing FUNCTION before:

MODE FUNCTION – select one of the operation modes FM / AM / USB / LSB

• Load channel in the memory 5 with MEM switch.

After pressing FUNCTION button before: LOW FUNCTON – This switch activates tone low (high cut) circuits.

• Save channel in the 5 with MEM switch.

13. MEMORY SWITCH

FUNCTION OFF: MEMORY LOAD FUNCTION – Load one of the 5 memory channels with 5 numeric key.

FUNCTION ON: MEMORY SAVE FUNCTION – Save one of the 5 memory channels with 5 numeric key.

14. LCR / MEMORY 4 SWITCH

FUNCTION OFF: LCR (Last Channel Recall) FUNCTION – Press LCR to return to the last channel that was used for longer than 3 seconds or was transmitted on.

• Load channel in the memory 4 with MEM switch

FUNCTION ON;

• Save channel in the memory 4 with MEM switch

15. CALL / MEMORY 2 SWITCH

FUNCTION OFF: CALL FUNCTION – This switch is used to access a reprogrammed frequency (memory 2)

• Load channel in the memory 2 with MEM switch

FUNCTION ON:

• Save channel in the memory 2 with MEM switch

16. DIM SWITCH

FUNCTION OFF: DIM FUNCTION – This switch is used to switch the instruments and keyboard illumination from bright to dimmer.

17. FUNC SWITCH

BRIEF PUSH: This switch activates as FUNCTION switch the secondary function of double function switches.

18. STEP / NB / MEMORY 1 SWITCH

FUNCTION OFF: STEP FUNCTION – This switch is used for select one of the frequency steps between: 1KHz / 10KHz / 100KHz

1KHz: Sets 1KHz digit of the desired operating frequency. 10KHz: Sets 10 KHz digit of the desired operating frequency. 100 KHz: Sets 100KHz digit of the desired operating frequency.

• Load channel in the memory 1 with MEM switch.

FUNCTION ON: NB FUNCTION – (Noise Blanker) If your reception is disturbed by interference from impulse type noise (ignition noise and other electrical noise press NB to reduce or eliminate the noise)

• Save channel in the memory 1 with MEM switch.

19. SCAN / SHIFT / MEMORY 3 SWITCH

FUNCTION OFF: SCAN FUNCTION – Set the scan mode on/off in RX mode.

• Load channel in the memory 3 with MEM switch.

FUNCTION ON: SHIFT FUNCTION for Repeater operation – Press the shift switch to select the direction: + SHIFT / -SHIFT. Press more than 3 seconds the SHIFT switch to select to off-set step: 0 ~ 990KHz. In most countries 100 kHz shift is usual. You can get more information by the local amateur radio clubs.

• Save channel in the memory 3 with MEM switch.

20. LCD DISPLAY

LCD indicates the frequency or channels if selected.

21. MOD / SWR ANALOG METER

This meter reflects SWR calibration and modulation, operated in TX mode.

22. S / RF ANALOG METER

In receive mode, this meter displays incoming signal strength. In the transmit mode this Meter displays RF power.

BEEP/TONE

Turning on power switch while keeping PTT key pressed sets beep mode on/off.

Display Panel Features: Illustrated below are all the VISUAL INDICATORS that appear on the display, and the corresponding feature function that they associate with.

Liquid Crystal Display Panel: The liquid crystal panel provides the user with a visual information on the operation and status of the AE 497 W.

CAUTION: Due to the physical behaviour of LCD’s, liquid crystal displays should not be subjected to extremes of temperature or humidity. If the unit is exposed to temperatures below -20°C (-5°F) or above + 60°C ( +140°F), the display may temporarily cease to function properly, and in some cases, could result in permanent

damage. Do not subject radio to extreme conditions, such as closed automobile in direct sunlight or continuous sub zero temperatures.

All liquid crystal displays have a preferred viewing angle when the display contrast is at a maximum. The best viewing point will vary by user, depending on such variables as temperature, humidity, battery condition, and the actual users eyesight.

• Function ( FUNC) Mode: Indicates that the “FUNC” button has been selected,

which allows for operation of many of the various features.

• AM: Indicates AM mode operation.

• FM: Indicates FM mode operation.

• USB: Indicates Upper Sideband mode operation.

• LSB: Indicates Lower Sideband mode operation.

• SCAN: Indicates that the radio is in the “scan” mode which works in

conjunction with all frequency and five memory locations.

• Frequency Readout: Displays the corresponding frequency associated with

the channel you are communicating with.

• LOW: Indicates that the Tone Low feature has been turned on.

• SHIFT: Indicates that the SHIFT (+ and -).

• NB: Indicates that the Noise Blanker features has been turned on.

• “L”: Indicates that the memory recall ( = Load) mode has been activated

• “S”: Indicates that the radio is in the “Memory Store” mode, ready to receive a

channel into one of the memory locations.

• TX: Indicates that the radio is in the “transmit” mode.

ANALOG INDICATOR METER:

A B

A S-TX METER: Indicates relative incoming signal strength and RF out put

power.

B Modulation / SWR Meter: Measures the percent modulation of the AM signal.

Note that the CAL/SWR/MOD switch must be in the “MOD” position for the meter to measure and read modulation.

SWR METER: Measures the ratios of standing wave ratio of the antenna system, which is critical in properly adjusting the length antenna and all related electrical connections. This meter will indicate if there are any major changes in these critical areas caused by such things as humidity, vibration, or corrosion, which will cause the SWR Meter to rise. A rising SWR indicates that a problem exists.

To Calibrate SWR:

a) Set the radio into the AM mode.

b) Switch the CAL/SWR/MOD knob to the SWR position

c) Transmit by pressing the PTT button on the microphone, and adjust the

SWR/CAL, control until the needle reaches the CAL position on the meter.

d) Put the CAL/SWR/MOD knob back to the SWR position, and read the SWR value.

INSTALLATION

LOCATION OF THE RADIO

Prior to beginning operation if the transceiver, a basic installation must be prepared. Installation of the transceiver itself is a rather simple procedure. In selecting the location for the unit, two basic factors must be considered:

A. Access to 230V, 50Hz or 13,8V DC power source.

B. The location must be convenient for running the antenna lead in cable if an

outside antenna installation is proposed.

BASE STATION ANTENNA

Since the maximum allowable power output of the transmitter may be limited by the Regulations or Licence classes, the antenna is the most important factor affecting transmission distance. Only a properly matched antenna will allow maximum power transfer from the 50 ohm transmission line to the radiating element. The recommended method of antenna turning is to use the built in SWR meter to adjust the antenna turning for maximum reflected power. The radio may be used with any type of 50 ohm base station antenna.

A ground plane vertical antenna will provide the most uniform horizontal coverage. This type of antenna is best suited for communication with a mobile unit. For point to point operation where both stations are fixed, a directional beam will usually increase communicating range since this beam antenna also allows the receiver to “listen” in only one direction, thus reducing interfering signals.

OPERATING PROCEDURES TO RECEIVE

1. Turn the radio ON by pressing the POWER switch.

2. Press the “Mode” selection button (labeled “5” on the button) continuously until

you find the mode of operation you desire to operate in (AM, FM, USB, LSB).

3. Adjust the VOLUME control until you reach your desired listening level.

4. Turn the frequency selector knob to the desired operating frequency.

5. Turn the RF GAIN control completely clockwise.

6. Adjust the “CLARIFIER” control to clarify the SSB signals (start from middle

position).

7. Listen to the background noise coming from the radio. Turn the squelch control

slowly until the noise just disappears. (No signal should now be present). Leave the control at this setting. The SQUELCH is now properly adjusted. The receiver will remain quiet until a signal is actually received. Do not advance the knob too far, as some of the weaker signals will not be heard.

OPERATING PRODEDURE TO TRANSMIT

1. Select the desired frequency of transmission.

2. Set the MIC GAIN control fully clockwise.

3. Activate the press to talk switch. The receiver and transmitter are controlled by

the press to talk switch on the microphone. Press the switch and the transmitter is activated. Release the switch to receiver.

4. Hold the microphone two inches from your mouth, speak in a clear normal voice.

5. The S-TX meter will indicate power output and the modulation meter will indicate

percentage of modulation as you speak into the microphone.

CAUTION: Be sure the antenna is properly connected to the radio before transmitting. Transmitting without an antenna or a poorly matched antenna could cause damage to the transmitter.

RESEIVING SSB SIGNALS

There are four types of signals presently used for communications in the Citizen Band: AM, FM, USB and LSB. When the MODE switch on your unit is placed in the AM position, only standard double sideband, fully carrier signals will be detected. An SSB signal may be recognized while in the AM mode to produce an intelligible output. The USB and LSB modes will detect upper sideband an lower sideband respectively, and standard AM signals.

SSB reception differ from standard AM reception in that SSB receiver does not require a carrier or opposite sideband to produce an intelligible signal. A single sideband transmitted signal consists only of the upper or the lower sideband and no carrier is transmitter. The eliminate of the carrier from the AM signal helps to eliminate the biggest cause of whistles and tones heard on channels which make even moderately strong AM signals unreadable. Also, SSB take only half of an AM mode therefore two SSB conversations will fit into each frequency, expanding the two time frequency. The reduction in channel space required also helps in the receiver because only half of the noise and interference can be received with 100% of the SSB signal.

An SSB signal may be received only when the listening receiver is functioning in the same mode. In other words, an Upper Sideband Signal (USB) may be made intelligible only if the receiver is functioning in the USB position.

If a Lower Sideband (LSB) signal is heard when the receiver is in the USB mode, no amount of turning will make the signal intelligible. The reason for this may be understood if you consider that when the modulation is applied to the transmitter`s microphone in the USB mode, the transmitter`s output frequency is increased whereas in the LSB mode the transmitter’s output frequency is decreased. The result in listening to the receiver is that when the MODE switch is in the proper position (either USB or LSB), a true reproduction of single tone of modulation will result, and if the tone is increased in frequency (such as a low pitched whistle or a high pitched whistle) you will hear the increase in the output tone of the receiver. If the incorrect mode is selected, an increase in tone of a whistle applied to the transmitter will cause a decrease in the resultant tone from the receiver.

Thus when a voice is used in place of a whistle or a tone, in the proper listening mode the voice will be translated backwards and cannot be made intelligible by the voice lock control. When listening to an AM transmission, a correct side band is heard in either mode since both upper and lower sideband are received. Once the desired SSB mode has been selected, frequency adjustment may be necessary in order to make the incoming signal intelligible. The CLARIFIER controls allow the operator to vary the frequency above and below the exact center frequency of the received signal. If the sound of the incoming signal is too high or too low pitched, adjust the CLARIFIER control. Consider it as performing the same function as a Dictaphone speed control. When the speed is set too high, voices will be high pitched, and if set too low, voices will be low pitched. Also, there is only one correct speed that will make a particular tape produce the same sound that was recorded. If the tape is played on a player that rotates in the wrong direction (opposite sideband), no amount of speed control (Clarifier) will produce an intelligible sound.

An AM signal received while listening in one of the SSB modes will produce a steady tone (carrier) in addition to the intelligence, unless the SSB receiver is turned to exactly the same frequency by the Clarifier control. For simplicity it is recommended the AM modes be used to listen to AM signals.

Connectors for accessories Mic socket (3)

6 pin Standard plug, for Albrecht standard electret microphones with appr. 600 Ohm to1 kOhm Impedance:

PIN 1 Mic Audio PIN 2 PTT-RX contact and Packet-Radio audio

output PIN 3 PTT-TX contact PIN 4 UP- / DOWN keys PIN 5 Common ground, shielding PIN 6 + supply voltage for mic preamplifiers

Warning Notes: We have modified the mic wiring by end of 2008 to our Albrecht Standard hand microphone with up/down key wiring. Please never connect any older microphone type with additional switches as they had been in use for former versions of this model (AE 497 S or AE 497WS or older versions of AE 485 S). The former additional key wiring may damage the PIN 6 power supply wiring inside the new radio model.

Extension speaker socket (rear side)

3.5 mm Mono- socket for 4- 8 Ohm speakers with at least 2-4 Watt.

Earphone socket (2)

On the front panel You can find the PHONES socket. This is designed for MONO phones with 6.3 mm mono plug and standard impedances of 32 Ohms or higher. Stereo headphones can only be connected via adapter Stereo-to-Mono or must be equipped with a Mono 6.3 mm phones plug. It is not allowed to connect low impedance headphones ( with 8 Ohms or less), because EU regulations do not allow any more to use headphones and outputs where a risk of acoustical shocks may exists.

Programming Modes

For skilled service people we have provided a sub PCB inside of the radio which allows programming of several special channel configuration modes. Modifications are only allowed for use in countries where different modes are allowed. While it is allowed to sell amateur radios with the extended channel system + standard 10 m VFO mode in Germany (jumper position 2), some other European countries do not allow this and accept only the 10 m VFO range. In such cases the jumper must be plugged from position 2 into the position 1 by your distributor before sales. The reset button must be pressed after reprogramming.

Software procedure for Channel Mode (if enabled) :

• Press FUNC and after this press „2/Call“ for longer than 3 seconds

• The radio works then in a channelized mode from 25.165 MHz to 29.695 MHz

on 454 channels in 10 bands.

• Band switch: Press 2/Call

Toggle between channel number and frequency display:

• Press FUNC and then 2/CALL shortly.

Frequency Range Function

28.000-29.699 MHz Frequenzmode

28.000-29.699 MHz Frequency Mode +

26.165- 29.695 MHz channel mode (454 channels)

In some countries requested Enabled for sales in Germany. Switching via Function + 2/CALL (press 3 seconds)

Amateur Radio Hotline: 0900 1234 222 (0.68 Euro/min from German fixed

phone network/ 1.48 Euro/Min from German mobile

networks) Spare parts service: 06103-9481-22 Fax : 06103-9481-60 e-mail : service@alan-electronics.de Download-Server: www.hobbyradio.de

Declaration of Conformity

We hereby declare that our product: 10 m Amateur Radio Transceiver

AE 497 W

satisfies all technical regulations applicable to the product within the scope of EU Council

Directives and harmonized European Standards:

EU- Directives : 73/23/EEC, 2004/108/EG and 99/5 EC ;

European Standards EN 301 489-1 V 1.1.6, EN 301 489-15 V 1.2.1, EN 301 783-2 V.1.1.1,

EN 60 950- 1 : 2006

All essential radio test suites have been carried out.

Alan Electronics GmbH

Daimlerstr. 1 k

63303 Dreieich

GERMANY

This declaration is issued under the sole responsibility of the manufacturer according to the

procedure of Annex III R&TTE directive.

Basing on this declaration, the amateur radio may be used only by authorized persons having a valid amateur radio licence, and only for the purpose of amateur radio service in the dedicated frequency ranges.

Note: the latest valid issue of this Declaration of Conformity, as well as all other information about this radio and

possible restrictions of use, can be downloaded any time from our public internet server under:

http://www.hobbyradio.de

Contact person: Wolfgang Schnorrenberg

Place and date of issue:

Lütjensee, den 9. 12. 2008

(Signature)

Dipl.-Phys. Wolfgang Schnorrenberg

Alan Electronics GmbH

28.315 28.765 29.215

28.325 28.775 29.225

28.335 28.785 29.235

28.345 28.795 29.245

28.355 28.805 29.255

28.365 28.815 29.265

28.375 28.825 29.275

28.385 28.835 29.285

28.395 28.845 29.295

28.405 28.855 29.305

28.415 28.865 29.315

28.425 28.875 29.325

28.435 28.885 29.335

28.445 28.895 29.345

28.005 28.455 28.905 29.355

28.015 28.465 28.915 29.365

28.025 28.475 28.925 29.375

28.035 28.485 28.935 29.385

28.045 28.495 28.945 29.395

28.055 28.505 28.955 29.405

28.065 28.515 28.965 29.415

28.075 28.525 28.975 29.425

28.085 28.535 28.985 29.435

28.095 28.545 28.995 29.445

28.105 28.555 29.005 29.455

28.115 28.565 29.015 29.465

28.125 28.575 29.025 29.475

28.155 28.605 29.055 29.505

28.135 28.585 29.035 29.485

28.145 28.595 29.045 29.495

28.165 28.615 29.065 29.515

28.175 28.625 29.075 29.525

28.185 28.635 29.085 29.535

28.195 28.645 29.095 29.545

28.205 28.655 29.105 29.555

28.215 28.665 29.115 29.565

28.225 28.675 29.125 29.575

28.235 28.685 29.135 29.585

28.245 28.695 29.145 29.595

28.255 28.705 29.155 29.605

29.665

29.675

29.685

29.695

28.265 28.715 29.165 29.615

28.275 28.725 29.175 29.625

28.285 28.735 29.185 29.635

28.295 28.745 29.195 29.645

28.305 28.755 29.205 29.655

Frequency table for AE 497W (only for activated channel-mode)

A B C D E F G H I J

1 25.165 25.615 26.065 26.515 26.965 27.415 27.865

number

Channel

2 25.625 26.075 26.525 26.975 27.425 27.875

3 25.185 25.635 26.085 26.535 26.985 27.435 27.885

3A 25.195 25.645 26.095 26.545 26.995 27.445 27.895

4 25.205 25.655 26.105 26.555 27.005 27.455 27.905

5 25.215 25.665 26.115 26.565 27.015 27.465 27.915

6 25. 225 25.675 26.125 26.575 27.025 27.475 27.925

7 25. 235 25.685 26.135 26.585 27.035 27.485 27.935

8 25. 255 25.705 26.155 26.605 27.055 27.505 27.955

9 25. 265 25.715 26.165 26.615 27.065 27.515 27.965

7A 25.245 25.695 26.145 26.595 27.045 27.495 27.945

10 25.275 25.725 26.175 26.625 27.075 27.525 27.975

11 25.285 25.735 26.185 26.635 27.085 27.535 27.985

12 25.305 25.755 26.205 26.655 27.105 27.555

13 25.315 25.765 26.215 26.665 27.115 27.565

11A 25.295 25.745 26.195 26.645 27.095 27.545 27.995

14 25.325 25.775 26.225 26.675 27.125 27.575

15 25.335 25.785 26.235 26.685 27.135 27.585

16 25.355 25.805 26.255 26.705 27.155 27.605

15A 25.345 25.795 26.245 26.695 27.145 27.595

17 25.365 25.815 26.265 26.715 27.165 27.615

18 25.375 25.825 26.275 26.725 27.175 27.625

19 25.385 25.835 26.285 26.735 27.185 27.635

19A 25.395 25.845 26.295 26.745 27.195 27.645

20 25.405 25.855 26.305 26.755 27.205 27.655

21 25.415 25.865 26.315 26.765 27.215 27.665

22 25.425 25.875 26.325 26.775 27.225 27.675

23 25.455 25.905 26.355 26.805 27.255 27.705

24 25.435 25.885 26.335 26.785 27.235 27.685

25 25.445 25.895 26.345 26.795 27.245 27.695

26 25.465 25.915 26.365 26.815 27.265 27.715

27 25.475 25.925 26.375 26.825 27.275 27.725

28 25.485 25.935 26.385 26.835 27.285 27.735

29 25.495 25.945 26.395 26.845 27.295 27.745

30 25.505 25.955 26.405 26.855 27.305 27.755

31 25.515 25.965 26.415 26.865 27.315 27.765

32 25.525 25.975 26.425 26.875 27.325 27.775

33 25.535 25.985 26.435 26.885 27.335 27.785

34 25.545 25.995 26.445 26.895 27.345 27.795

35 25.555 26.005 26.455 26.905 27.355 27.805

36 25.565 26.015 26.465 26.915 27.365 27.815

37 25.575 26.025 26.475 26.925 27.375 27.825

38 25.585 26.035 26.485 26.935 27.385 27.835

39 25.595 26.045 26.495 26.945 27.395 27.845

40 25.605 26.055 26.505 26.955 27.405 27.855

Albrecht AE-497W_25W User guide

Specifications and Main Features

Frequently Asked Questions

User Manual