Technical Resources

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Transmitter Manuals

Retekess 15w Tx

Retekess 15w Bluetooth Transmitter

This unit can be branded as Retekess or as NioRFNio

User Manual

 


FM User 25w

FM User 25w Transmitter

Model No CZE-T251

User Manual

 


FM User 15w Transmitter

Model No CZH-15A & Model No ST-15B.

These are both effectively the same unit.

User Manual

 


RVR 700w Transmitter

Model No TEX702LCD

User Manual

 


FMT Camel Series Transmitter

These transmitters are branded as Camel, FMT or perhaps both.

Model Number FMT 350H

User Manual  1.8MB

Service Manual including circuit diagrams 2.1MB


RVR 300W Transmitter

These Transmitters were purchased/first went into service in 2021/22

Model Number RVR TEX300LCD  User Manual

Transmitter Startup Operation YouTube Video


RVR 1 KW Transmitter

There are two different models we have in service.

Model Number RVR TEX102LCD  User Manual

Model Number RVE TEX102 TFT  User Manual  Introduction YouTube video


AAREFF 100W Transmitter

This transmitter comes with a 5 year warranty.

Model Number   User Manual


AAREFF 250W Transmitter

This transmitter comes with a 5 year warranty.

Model Number   User Manual


AAREFF 1KW Transmitter

This transmitter comes with a 5 year warranty.

Model Number RVR TEX102LCD  User Manual


Crown classic Transmitter

CROWN Transmitter

Used in some nations – eg Indonesia

For Classic LPFM 30 – 15 – 300w transmitters  User Manual

Modulation Compensation Manual

Antenna & Aerials

Folded Dipole Antenna

Can be made of Stainless Steel or Aluminuim

User Manual

 


1/4 Wave Antenna with adjustable tip

Aluminium construction with a telescopic tip

Testing results and calculated (theoretical) length

 


1/4 Wave Antenna – Fixed length

Steel construction with fixed length tip.  These antenna can be trimmed to length to achieve optimal SWR. Where possile we have provided these with the tip length that is best for the local broadcast Frequency.

Testing results and calculated (theoretical) length

 


Circular Dipole Antenna (1) – RVR Model ACP1

This antenna is in use in Dili – Timor-Leste

Brochure

 

 


Circular Dipole Antenna (2) – ERi Model 100A Series

This antenna may be the one we choose to use for Rote Island in Indonesia

Brochure

 


AAREFF 2 Way Stacked Dipole Antenna

User Manual

Installation Picture


AAREFF 4 Way Stacked Dipole Antenna

User Manual

 

 

 


5/8 Wave Antenna for up to 1KW

Info

This antenna is in use in Munda and Honaira.

Solar

 


Solar Controller

Steca PR3030 – this is a small unit used with installs with (for example) two x solar panels and one x 100Ah battery.

User Manual

 


Fronius Solar Controller

Fronius Primo 5.0  – this is a 5Kw unit used in Wewak PNG.

User Manual

 

 

 

 

 


Growatt Solar Controller

Growatt SPF 3000TL LVM – this is a 3Kw unit used in Munda and Honiaria in the Solomon Islands.

User Manual

 

Other Technical Equipment

SWR Meter

Avair AV-600 SWR Meter

User Manual

There is also this training video showing how SWR meters work. While this video isn’t specific to the model we use, it gives you a good overview and is worth watching.

Significance of the SWR reading

An SWR of 1:1.0 or sometimes just referred to as 1.0 indicates that all power from the transmitter is being absorbed by the antenna.

An SWR of 1.5 indicates that virtually all the power is being absorbed by the antenna. The power being reflected back is only a very small amount is not anything to worry about.

An SWR of 1.8 is starting to get a little bit over the ideal, however most transmitters will run happily at this. Also some broadband type antennas will have SWR of up to 1.8 at the far ends of their tuning range, this is acceptable.

An SWR of 2.0 is starting to get a bit too high. However, even at this level most transmitters will run without a problem. If you are using high power (100W and over) at this SWR it is time to service and adjust your antenna system to get the SWR to 1.5 or less.

An SWR of 2.5 or over is too high and some transmitters will be damaged at this level. It’s advisable not to use a transmitter at this level of SWR.

Here is an online SWR calculator

https://www.aareff.com/en/calculating-swr/ 


Analogue Timer Switch

24 Hour timer switch with manual push pins. There are variations on this unit but they all operate with the same principles.

Simple instruction diagram   pdf 

There is also an Instructional Video showing how to set the timer up for use with a tablet.

 

Digital Timer Switch

24 Hour timer switch with an LCD screen.

NOTE: if the LCD screen is blank the internal battery will need charging before you can use it.  Leave the unit plugged into the power for 30 minutes and the LCD screen should come back on. If the screen doesn’t come back on, the internal NiMH Battery may need replacing.

User Manual

 


Coaxial Cable

We use one of three main types of Coaxial cable with our radio installations. Which one depends on the transmitter output power and the length of the cable run.

Brief Description of the three types pdf


Hyundai Standby Generator

For the Generator that is use in Wewak.

Maintainance Manual – pdf 228KB

User Manual – pdf 3MB

 

 

Instruction Manual for the Intelilite MRS 10 Ggenerator Control Panel – pdf format 887KB

 

 


RF Connectors

These are the main type of connectors used on our broadcast equipment.

These connect the Transmitter to the Antenna cable.

Click on an image to see a larger view.

Training Videos

Significance of the SWR reading

An SWR of 1:1.0 or sometimes just referred to as 1.0 indicates that all power from the transmitter is being absorbed by the antenna.

An SWR of 1.5 indicates that virtually all the power is being absorbed by the antenna. The power being reflected back is only a very small amount is not anything to worry about.

An SWR of 1.8 is starting to get a little bit over the ideal, however most transmitters will run happily at this. Also some broadband type antennas will have SWR of up to 1.8 at the far ends of their tuning range, this is acceptable.

An SWR of 2.0 is starting to get a bit too high. However, even at this level most transmitters will run without a problem. If you are using high power (100W and over) at this SWR it is time to service and adjust your antenna system to get the SWR to 1.5 or less.

An SWR of 2.5 or over is too high and some transmitters will be damaged at this level. It’s advisable not to use a transmitter at this level of SWR.

Here is an online SWR calculator

https://www.aareff.com/en/calculating-swr/