TAFM2833-AMP 144 MHz RF Transmitter in Compact Alluminum Case
Units Sold: 10
TAFM2833-AMP 144/145.5 MHz Compact RF Transmitter
Transmitting Analog Frequency Modulation Device with Antenna
Compact RF Analog and Digital Transmitter in Aluminum Case
Transmitter is built on Motorola IC MC2833 with Amplifier and LPF
Device can be used to Transmit Analog and Digital SFK Signals
The Carrier Frequency is 144 MHz with Modulation in Range 20-8000 Hz
PCB, Design, Schematics, Case and Software made by GRA & AFCH
$68.95 – $109.95
TAFM2833 144 MHz FM Transmitter with Amplifier 144 MHz/145.5 MHz TAFM2833-AMP 0.5W/27dBm
Overview:
- This is the updated and improved version of our TAFM2833
- Transmitting Analog Frequency Modulation Device
- Compact RF Analog and Digital Transmitter in Alluminum Case
- Transmitter is built on Motorola IC MC2833 with Amplifier + LPF
- Device can be used to Transmit Analog and Digital SFK Signals
- The Carrier Frequency can be 144 / 145.5 MHz (choose in selector)
- The Signal can be Modulated in Range of 20-8000 Hz
- It provides a communication range of over 1.8 km (1.1 miles). See the map image for details.
The transmitter power supply has been optimized to operate over a wide voltage range from 3 to 9 volts. This allows the transmitter to be powered either from a single lithium cell (3.7V) or from two cells connected in series (7.4V).
For example, it can also be powered from a 9 V/6F22 battery, which is available with different chemistries, including nickel-metal hydride, lithium, or cadmium-based versions or even be powered by batteries containing two built-in lithium cells.

Listing includes:
- FM Transmitter TAFM2833-AMP [144MHz] in Aluminum Case – 1 pc
- Power Supply [DC 7.5V/2A] [US, EU, UK] [AC plug] (optional, choose in selector)
We offer related products to this RF Unit:
DDS AD9910 Arduino Shield RF Signal Generator (600 MHz Low Spurs Low Harmonic)
If you have ANY questions, PLEASE ASK us.
Description:
- Fixed 144/145.5 MHz frequency Transmitter with FM Modulation
- Device is Built on Motorola IC MC2833 and packed in Alluminum Case
- For frequency stability a high quality Quartz Resonator is used
- To increase the frequency of deviations to +/- 8 kHz a frequency multiplication is used
- The 7th order Bandpass filter is used to suppress Spurs and Harmonics
- High quality components are also used to ensure a clean Spectrum up to -60dBc
- Device is suitable for Ttransmitting Analog Signals as well as Digital FSK
- Transmitter MUST be used in conjunction with external Antenna!
Main Features:
- Carrier Frequency – 144/145.5 MHz (optional)
- Input Modulation Signal level (maximum) – 10 mVrms
- Deviation Frequency – +/- 8 kHz
- Frequency Range of the Modulation Signal – 20 – 8000 Hz
- Power Supply Voltage – 3-9 V
- Power Connector dimensions – 5.5×2.1 mm jack
- Output Power (at 7 V) – +27 dBm (0.5W)
- Transmitter dimensions – 50x50x15 mm
- Case material – Alluminum
- External Antenna – mountable (not included)

Frequency multiplication:
We produce our FM Transmitters using multiplication of the Frequency method. This allows to achive quiet wide deviation with Frequency.
For example for output Frequency of 144 MHz we multiply 24 MHz Crystal for 6.
TAFM2833 RF Transmitter Spectrograms:

Transmitter FM Modulation Spectrum

Transmitter Carrier Spectrum
TAFM2833-AMP RF Transmitter by GRA & AFCH:





If you have ANY questions, PLEASE ASK us.
Shipping and Return information
All Items are shipped from Ukraine
Via International registered Airmail
Shipments are made within 1 business day
After the payments are received and verified
It takes about 4-7 days via UPS Express delivery
It takes about 10-18 days via Standard shipping
It takes about 35-45 days via Economy shipping
We combine multiple Items to save on shipping
UPS Express Shipping time (recommended):
| Europe: | 3-5 days |
| Germany: | 3-5 days |
| USA, Canada: | 4-7 days |
| Asia, South America: | 5-7 days |
| Australia, New Zealand: | 5-7 days |
| Africa, Central America: | 5-7 days |
Standard Shipping time:
| Europe: | 10-12 days |
| Germany: | 10-12 days |
| USA, Canada: | 10-15 days |
| Asia, South America: | 10-18 days |
| Australia, New Zealand: | 12-18 days |
| Africa, Central America: | 12-18 days |
Economy Shipping time:
| Europe: | 25-30 days |
| Germany: | 25-30 days |
| USA, Canada: | 30-35 days |
| Asia, South America: | 35-45 days |
| Australia, New Zealand: | 45-55 days |
| Africa, Central America: | 45-55 days |
Return Policy
All Returns are accepted
- For Return you should contact Us within 14 Days after receiving the Item
- Refunds are made as Money back or Replacements (buyer’s choice)
- Return Shipments are paid by the buyer
- No restocking fees are charged
Customs Policy
We as a seller do not receive from the buyer any charges any sales taxes and handling fees.
In any case we are not responsible for Tax(VAT) or any other Import duties or any other equivalent fees that arises upon delivery.
Please consult with your local Customs legislation and visit your local Customs department or website before making any purchases.
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PCB Design Schematics Case and Software made by GRA & AFCH$209.95 – $289.95 Select optionsTAFM2833 144 MHz RF Transmitter [with Antenna]
TAFM2833 (TAFM) 144 MHz RF Transmitter
Transmitting Analog Frequency Modulation Device
Compact RF Analog and Digital Transmitter with Antenna
Transmitter is built on Motorola IC MC2833 with Bandpass filter
Device can be used to Transmit Analog and Digital SFK Signals
The Carrier Frequency is 144 MHz with Modulation in Range 20-10000 Hz
PCB, Design, Schematics, Case and Software made by GRA & AFCH$44.95 – $74.95 Select options










