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Everything is sold! Thank you everyone.
I have 0 SSTran AM transmitters. These are the best AM transmitter you can buy in the market for entry level radio broadcaster. This AM transmitter is designed to meet FCC regulation. It can be boosted by better antenna (that's another project).
You can find the main supplier here: http://www.sstran.com/index.html
These are original come as kit, so you have to solder these in place with the instruction. It's time consuming but the result was awesome.
Mine are already assembled by me and verify that they are working as designed.
Price from SSTran as kit: $92.5 + shipping
My asking price:$65shipped with AC adapter - dropped from $85shipped
AMT3000 Specifications
Frequency Coverage:
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Hi, I have a lot of 0 new .5W FM radio transmitters that allow you to run your own FM radio station. Supported FM frequency from 87.5 to 107Mhz. THese are PLL and are quality stereo built transmitters.
Lot: 25
Remaining: 0
Please read the FCC regulation on non-licensed radio before purchase:
http://www.fcc.gov/Bureaus/Engineering_Technology/Documents/bulletins/oet63/oet63rev.pdf
**Note: Always use vacant FM channel in your area to avoid interfering with licensed radio station and to avoid FCC knocking on your door **
Reducing power tips:
You can lower the power of this transmitter further to make it FCC safe by purchasing an 50ohm inline attenuator: http://www.rackmount-devices.com/main.html?page=015-3320
Radio locator to find vacant frequencies in your area:
http://www.radio-locator.com/
****WARNING: The antenna must be plugged in first before power up the transmitter.****
---> Reason: Doing so will damage your final transistor and render the transmitter useless
Technical Specification:
Operating current: Less than 0.5A
Power supply voltage: DC 9-15V (12V recommended)
Operating current: Less than 0.5A
Frequency range: 88 ~ 108Mhz
Frequency step: 100kHz
Frequency stabilization method: PLL
Frequency stability: ± 10 ppm (-10° C to +60 ° C )
Frequency Deviation: Less than ± 75kHz (100%)
Working method: Continuous
Clutter and Harmonic: Less than -60dB
SNR: 60dB
Stereo Channels Crosstalk:-50dB
Audio frequency response: 20 to 15000Hz
Audio distortion: Less than 2%
Modulation: 15%
Input Level:-15dBV
RF output impedance: 50 Ohm
RF output power: 0.5~1 W (near the center frequency of 5MHz)
Reference range: 100m - 1Km (A barrier-free environment)
Dimensions: 100mm(L) *80mm(W) * 30mm(H)
Introduction
This is the ideal district FM radio broadcasting equipment designed and used in the factory, school, car FM radio or anywhere you want.
The product crust is made of high-quality aluminum alloy with blue backlit LCD to display frequency.
The motherboard is applied with chip BH1415F, which is the new-generation integrated NC FM stereo radio chip by ROHM, built-in PLL frequency, audio pre-emphasis, limiter and low pass filter circuit. Make sound more sweet.
The control board is designed with high performance MCU STCseries, its performance is better than AT89C2051..
Good shielding, compact structure, small size, generous appearance.
Notes: Inner circuit board version may vary (slightly modifications).
Package includes
FM Transmitter
DC Power supply
Short rubber antenna with magnetic
Price: $40 shipped per unit - SOLD OUT
I have 0 SSTran AM transmitters. These are the best AM transmitter you can buy in the market for entry level radio broadcaster. This AM transmitter is designed to meet FCC regulation. It can be boosted by better antenna (that's another project).
You can find the main supplier here: http://www.sstran.com/index.html
These are original come as kit, so you have to solder these in place with the instruction. It's time consuming but the result was awesome.
Mine are already assembled by me and verify that they are working as designed.
Price from SSTran as kit: $92.5 + shipping
My asking price:$65shipped with AC adapter - dropped from $85shipped
AMT3000 Specifications
Frequency Coverage:
530 kHz - 1700 kHz in 10 kHz steps or 522 kHz - 1710 kHz in 9 kHz steps, depending on order option
Frequency Selection Method: 8-position DIP switch
Frequency Tolerance @ 25ºC: ±.003%
Modulation Type: Amplitude Modulation (AM)
Maximum Modulation Level: 100%
Power Input to Final RF Stage: 100 mW
Antenna: 118” wire (supplied with kit)
Antenna Matching: Tunable pi-network. Matches high impedance antenna to low-impedance RF output stage.
Output Tuning: 4-position DIP switch selects inductance combination, adjustable ceramic trimmer capacitor peaks resonance.
RF Output Metering: Test points on circuit board provide DC voltage to user-supplied 10 megohm/volt voltmeter. Measured voltage is maximum at resonance.
RF Grounding Options: Jumper plug options for including/excluding RF isolation inductors in power supply and audio source ground paths.
Audio Response: 20 Hz to 20 kHz ±1 dB
Audio Treble Boost: +8 dB, boost midpoint at 2 kHz. Jumper plug option.
Audio Distortion: Less than 0.5% THD through audio stages.
Minimum Audio Input Level: 200 mV RMS for 100% modulation (input gain control at max).
Audio Compression: Compression ratio adjustable from 1:1 to 5:1. Attack time less than 1 ms. Medium release time suitable for both voice and music.
Audio Limiting: Adjustable threshold. 15:1 compression above threshold.
Front Panel Controls: Audio input gain, modulation level, compression ratio.
Rear Panel Jacks: 2 RCA audio in jacks, RCA antenna/ground jack, 2.1 mm power input jack.
Power Consumption: 120 VAC, 2 watts
Circuit Board: 5”W x 3.9”D x .062”H FR4, two layers, 1 oz. copper, top and bottom solder masks, top silkscreen.
Enclosure: 6.1”W x 4.2”D x 1.5”H ABS plastic. Drilled and labeled front and rear panels.
---------------------------------------------------------------------------------------------
------------------------ SOLD SECTION -------------------------------------------
---------------------------------------------------------------------------------------------
Hi, I have a lot of 0 new .5W FM radio transmitters that allow you to run your own FM radio station. Supported FM frequency from 87.5 to 107Mhz. THese are PLL and are quality stereo built transmitters.
Lot: 25
Remaining: 0
Please read the FCC regulation on non-licensed radio before purchase:
http://www.fcc.gov/Bureaus/Engineering_Technology/Documents/bulletins/oet63/oet63rev.pdf
**Note: Always use vacant FM channel in your area to avoid interfering with licensed radio station and to avoid FCC knocking on your door **
Reducing power tips:
You can lower the power of this transmitter further to make it FCC safe by purchasing an 50ohm inline attenuator: http://www.rackmount-devices.com/main.html?page=015-3320
Radio locator to find vacant frequencies in your area:
http://www.radio-locator.com/
****WARNING: The antenna must be plugged in first before power up the transmitter.****
---> Reason: Doing so will damage your final transistor and render the transmitter useless
Technical Specification:
Operating current: Less than 0.5A
Power supply voltage: DC 9-15V (12V recommended)
Operating current: Less than 0.5A
Frequency range: 88 ~ 108Mhz
Frequency step: 100kHz
Frequency stabilization method: PLL
Frequency stability: ± 10 ppm (-10° C to +60 ° C )
Frequency Deviation: Less than ± 75kHz (100%)
Working method: Continuous
Clutter and Harmonic: Less than -60dB
SNR: 60dB
Stereo Channels Crosstalk:-50dB
Audio frequency response: 20 to 15000Hz
Audio distortion: Less than 2%
Modulation: 15%
Input Level:-15dBV
RF output impedance: 50 Ohm
RF output power: 0.5~1 W (near the center frequency of 5MHz)
Reference range: 100m - 1Km (A barrier-free environment)
Dimensions: 100mm(L) *80mm(W) * 30mm(H)
Introduction
This is the ideal district FM radio broadcasting equipment designed and used in the factory, school, car FM radio or anywhere you want.
The product crust is made of high-quality aluminum alloy with blue backlit LCD to display frequency.
The motherboard is applied with chip BH1415F, which is the new-generation integrated NC FM stereo radio chip by ROHM, built-in PLL frequency, audio pre-emphasis, limiter and low pass filter circuit. Make sound more sweet.
The control board is designed with high performance MCU STCseries, its performance is better than AT89C2051..
Good shielding, compact structure, small size, generous appearance.
Notes: Inner circuit board version may vary (slightly modifications).
Package includes
FM Transmitter
DC Power supply
Short rubber antenna with magnetic
Price: $40 shipped per unit - SOLD OUT
Last edited:
