Sunday, April 14, 2013

Ptt Interface

Just another good way to make PTT or Morse interface…
Have a look here

Sunday, October 28, 2012

Zero Beating

Zero Beat is used for centering your radio to the right frequency. Set morse frequency tone you use and tune up your receiver to Zero Beat the correspondent. Tone can be set from 500 to 1200Hz. 
Check how it works here :


Friday, July 13, 2012

MorseDec tone recognition troubles on Palm Paddle IR (SOLVED)

Trouble :
some problems with tone recognition of my Palm Paddle IR:
Sound generator works: generator.m4a
Palm paddle does not work: PalmPaddle.m4a

*********************************************************
Answer:

Generator use a 680 Hz tone
and Palm Paddle a 2340 Hz tone.
Generally CW tone range in HF is between 500 and 1000 Hz (you can try listening with your radio in CW mode)
so I decide to limit the input from 250 Hz to 1300 Hz.
This is not a problem, but a choice to make more comfortable to tune cw signals.


*********************************************************
Further check and Solution (THANKS Holger!):
I've experimented a bit and looked at the spectrograms of the buzzer.
Naturally, the palm piezo has no clear sinus wave.
The choosen frequency occurs only as a weak side line.
This seems to be the reason why your software did not respond.
The microphone of the headset brings this weak signal in now.
73 de Holger / DO7CW







Wednesday, June 13, 2012

Psk31 Pan Iphone


What about an IPhone working like this ?

http://youtu.be/FzT6KvG0Oq4

Have fun :)

Sunday, August 7, 2011

Macros Update

If you are using I-Psk31 or IRTTY for Iphone you have NOT a macro button,
but you must Double tap on waterfall.
In macros you can write everything.
If you write ### ,it will be replaced by a copy of pasteboard.
To put something in pasteboard go in received text window,
hold finger then select and copy.
Hope this help,
73 Luca

Monday, July 25, 2011

Another Vox

If you need a vox and you want to build it check this link :

I think is well described, have fun !

Wiring

Interface between IPhone / IPod and RTX can made by a standard Digital Mode Interface.
You can buy one on e-bay or make it by youself. 
Genarally, these interfaces come with 2 stereo jack, one for audio in (mic) and one for audio out (speaker).

Last step, you must wire the 2 stereo jack in one 4 pin jack. Only for reference, the picture above show you the pinout of an IPhone.

Vox

A VOX must be used for TX, because we can’t use any signal from IPhone/IPod to act PTT.
If your rig have not a vox, you can buy a small external vox unit like ICOM VS-1L .
Wiring must be made by a technician.

FT 817 and IPhone




I made a simple interface for my iPhone and FT-817 (40dB pads each way, using built-in VOX in the radio).

Using it for the first time tonight on 40m with Multimode, I made 2-way contacts in to Hungary, Croatia, Ukraine and Slovenia with 3w on BPSK-31 :)”

Thank You Josh!!!

Macros



Move red bar to tune.
Tap on TX text to write and send.
Hold on RX text to copy. Macro will replace ### by this copy.