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Vintage Radio Collectors |
Local Community Radio Station |
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So you have just finished restoring your 1930's vintage radio
and want to listen to some relaxing music or a genuine "Old
Time Radio" show. But alas all your favourite radio stations
have moved to FM or digital radio.
Q. What do you do - what's needed is a way to
re-transmitting these on MW at
low power, so that your vintage AM radio can be tuned into them
properly.
A. Hook up a Spitfire - to your CD-Player, FM
Radio or MP3-Player and re-transmit your favourite music and
shows on to Medium Wave as in the olden days.
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So you want to run a "Low Power
AM" Local Community Radio Station, and need a 100mw FCC
compliant AM Medium Wave transmitter. (US ONLY)
The Spitfire low power (100mw) AM
modulator is designed for just that purpose.
It is a small mains powered unit, which connects to any mono
or stereo source and provides a high-quality AM
output, which may be tuned across the MW band. |
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The all new Spitfire AM Transmitter - May 2009 |
View Cart
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Price - £69.95 + £3.75 P&P shipping to United Kingdom |
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Price - £69.95 + £5.75 P&P shipping to European Union |
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Price - £69.95 + £9.75 P&P shipping to USA, Canada and
Japan |
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Pay by Cheque |
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If paying by cheque, click
here to print a ORDER FORM
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How to Order
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For more details
and how to order your Gizmo email gizmo@vcomp.co.uk
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Shipping
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To keep the cost down. Items
are normally sent by Recorded First Class or Air Small Packet. |
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FCC Part 15 compliant
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Q. We have re-designed our famous Gizmo
transmitter, adding many of the features of our top of the
range Spitfire but at half the price. We were going to
call the new transmitter the Gizmo II but it's so good we have
called it the Spitfire, after another engineering Icon of the
twentieth century.
- Active Stereo Mixer
- Digital Frequency Synthesizers
- Professional 16 stage ATU (Antenna Tuning Unit)
- Audio level and Modulation
Monitor LED
- Dual Mono or Stereo channels
- RCA Audio and RF Connectors
- Blow-out proof RF Stage
- External Ground Connections
- Internal Controls for Frequency, ATU
Course Tuning, ATU Fine Tuning
- Fully Regulated Power Supply
- Stereo Cable with twin RCA plugs and
3.5mm jack
- 3 Metre Antenna
- FCC part 15 compliant
The
Spitfire transmitter is ready built and ready to run...at
an affordable price...with the performance and features of units
costing many times the price...!
The
Spitfire employs the same crystal controlled frequency synthesizer
as the Metzo for accurate
tuning and drift free frequency stability. The synthesizer
tunes the entire AM broadcast band (500 - 1800 kHz)>
The
Spitfire provides the full 100 mill-watts, as allowed for
FCC Part 15 operation without a license.
The
Spitfire employs an updated RF output and modulator stages
based on the Metzo, with new features that results in
very low distortion modulation right up 100%, and an almost
indestructible output stage.
The
Spitfire has a two channel mixer for either Stereo to
Mono or twin channel Mono audio sources.
The
Spitfire has a totally new 16 stage ATU (Antenna Tuning
Unit) and has an variable capacitor to peak
the network to match a 3 Metre Antenna as specified under Part
15 rules.To make setting up the transmitter as simple as
possible.
The
Spitfire has a totally new design that eliminates low
frequency hum, by a grounding technique that
splits the RF and Audio grounds, as well as providing and
external grounding point. In addition a new external "universal"
switch mode power supply provides regulated DC power to the
transmitter.
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Fully Built and Tested
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- High Quality PCB
- Plastic CASE to IP56
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AC Power Adapter
included
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- Switched Mode Power
Supply EU & USA
15V DC 90-240V AC 50-60 Hz
- Linear Power Supply UK
12V DC 230V AC 50 Hz
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Audio Cables and Antenna
included
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- Stereo 3.5mm jack to
twin RCA (Phono)
- 3 Metre Antenna with
RCA (Phono)
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Crystal Controlled
Frequency Synthesizer
covers entire AM broadcast band.
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- 500KHz to 1800 KHz in 9KHz UK & EU
- or 10KHz steps for USA
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Specifications
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Frequency Range
(Broadcast):
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Frequency Range (programmable):
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- 500 to 1800
KHz in 10 KHz steps (US Mode)
- 500 to 1700
KHz in 9 KHz steps (EU Mode)
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Frequency Selection:
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Frequency Stability
@ 25°>C:
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Fundamental Crystal
Frequency:
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- 10.240 MHz (US
Mode) for 10 KHz channels
- 4.608 MHz (EU
Mode) for 9 KHz channels
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Modulation Type:
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- Amplitude
Modulation (AM)
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Maximum Modulation
Level:
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Power Input to RF
Amplifier:
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- 100mw to comply to FCC Part 15 rules
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Antenna:
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- Supplied with
3 metre antenna
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Antenna Socket:
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Antenna Matching:
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Pi-network with
Antenna matching using:-
- Inbuilt ATU,
with trimmer to peak antenna resonance
- External ATU
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RF Ground:
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Audio Response:
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Audio Distortion:
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- 0.5 % THD via
audio stage
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Indicators:
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- Audio Level & Modulation
Level
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Connectors:
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- RF Socket RCA
- Audio Ch 1
(Left Ch) RCA
- Audio Ch 2
(Right Ch) RCA
- DC Power 2.1mm
- Ground
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Power Consumption:
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Power Supply:
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- 90-240V 50-60
Hz Switched Mode PSU EU & USA
- Linear Power Supply UK
12V DC 230V AC 50 Hz
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EU R&TTE
directive and EMC Directive 2004/108/EC
- in order to purchase this item, you must agree that:-
1. You intend to re-export the item to an address outside the
European Union. Under no circumstances will this item be resold
or put into service within the European Union.
or
2. The item will only be used within a completely RF screened
and shielded metal enclosure or environment for testing,
evaluation, experimental or laboratory purposes and any other
use that does not radiate electro-magnetic waves into free
space. I am not an unqualified end user and I have RF
engineering and electromagnetic compatibility skills at my
disposal. |
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All specifications subject to change
without notice
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