A new 5OOKHZ transmitter cw is available.
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OLIVIER F6DGU
Jun 11, 2011, 2:52:23 AM6/11/11
to NEW 500 KHZ NETWORK
I please let you know that the JUMAT 5OOKHZ TRANSMITTER CW is
available for the NEW 5OOKHZ NETWORK.
JUMA TX500 is a digitally controlled CW transmitter for the 500 kHz
amateur radio band (600 m). The transmitter is available as a
component kit which inludes all the electrical and mechanical
componets.
JUMA TX500 is using ultra high efficiency CMCD amplifier (Current Mode
Class D) topology in the final RF amplifier. The final transistors
produce negligible heat. This means that you get 60 watts output with
only 5 amp current from a 14 VCD power supply. See power and
efficiency measurement graph. The frequency stability and the signal
purity of JUMA TX500 are excellent.
JUMA TX500 is a versatile building block for 500 kHz, it includes
antenna switching for RX and it can be connected to any 500 kHz
receiver. TX500 will enhance your RX performance with the built-in
narrow band front-end filter and with the selectable 10dB/20dB
preamplifier. If a 500 kHz receiver is not available, you can switch
ON the built-in high dynamic RX up-converter and listen 500 kHz band
with a 3.5 MHz receiver.
Additionally JUMA TX500 can be configured for a stand-alone beacon.
You can enter a desired CW message and start a continuous beacon
transmission.
You can download JUMA TX136/TX500 Windows control software. It is very
useful especially in slow CW transmission speeds and supports speed
down to 0.1 wpm. See a sample screenshot here.
The kit includes a ready programmed CPU. New forthcoming firmware
versions can be easily downloaded from JUMA site and uploaded with a
PC.
Olivier Marsan
http://olivier.marsan.free.fr/N5NTW/index.html
f6...@free.fr
available for the NEW 5OOKHZ NETWORK.
JUMA TX500 is a digitally controlled CW transmitter for the 500 kHz
amateur radio band (600 m). The transmitter is available as a
component kit which inludes all the electrical and mechanical
componets.
JUMA TX500 is using ultra high efficiency CMCD amplifier (Current Mode
Class D) topology in the final RF amplifier. The final transistors
produce negligible heat. This means that you get 60 watts output with
only 5 amp current from a 14 VCD power supply. See power and
efficiency measurement graph. The frequency stability and the signal
purity of JUMA TX500 are excellent.
JUMA TX500 is a versatile building block for 500 kHz, it includes
antenna switching for RX and it can be connected to any 500 kHz
receiver. TX500 will enhance your RX performance with the built-in
narrow band front-end filter and with the selectable 10dB/20dB
preamplifier. If a 500 kHz receiver is not available, you can switch
ON the built-in high dynamic RX up-converter and listen 500 kHz band
with a 3.5 MHz receiver.
Additionally JUMA TX500 can be configured for a stand-alone beacon.
You can enter a desired CW message and start a continuous beacon
transmission.
You can download JUMA TX136/TX500 Windows control software. It is very
useful especially in slow CW transmission speeds and supports speed
down to 0.1 wpm. See a sample screenshot here.
The kit includes a ready programmed CPU. New forthcoming firmware
versions can be easily downloaded from JUMA site and uploaded with a
PC.
Olivier Marsan
http://olivier.marsan.free.fr/N5NTW/index.html
f6...@free.fr
D.J.J. Ring, Jr.
Jun 11, 2011, 5:56:07 AM6/11/11
to new-500-k...@googlegroups.com
On Sat, Jun 11, 2011 at 2:52 AM, OLIVIER F6DGU <olivier...@wanadoo.fr> wrote:
I please let you know that the JUMAT 5OOKHZ TRANSMITTER CW is
available for the NEW 5OOKHZ NETWORK.
JUMA TX500 is a digitally controlled CW transmitter for the 500 kHz
amateur radio band (600 m).
Alors! So the New 500 kHz Network becomes an amateur radio band?
Sacre bleu!
73
David
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