a distant 3rd. I have previously written about what makes Cw contests my favorite ([CLICK HERE]
to read about this). With CW/RTTY contests, speaking dialects are NoT a problem - we use limited variations on English to get the message thru. (The use of Q-Codes makes a HUGE difference.)
While it is true that Crappy Cw and off-frequency RTTY signals can make for tricky copy, RTTY signals can be tuned in using the R-I-T (Clarifier) control, and we can ask for repeats on Cw until
we get it right. With Ssb (voice), in DX contests, repeats are all too often necessary.
As I mentioned in the write-up on the ARRL DX Ssb contest ([CLICK HERE] to read that),
Non-English-speaking stations often think they heard me say:
- WQ4X - Whiskey Quebec Four Xray - HuH? - How does SIX become FOUR?
- Whiskey Quebec Six Foxtrot - HuH? - How does XRAY become FOXTROT?
call area. In retrospect, I should have used several of the pre-recorded .WAV files to say
my callsign in four different ways. As they say - maybe next time.
For RECEIVE
- Leverage the filter systems built-in to the radio itself.
Example: the FT-1000mp and FT-2000 transceivers I use are equipped with
some form of a CONTOUR facility (the FT-2000 Contour control is linearly-variable) - Implement external audio filters to contour the audio passband to improve the listening experience.
- I utilize a pair of audio mixers:
- A USB powered unit for processing 1/8" cables to blend the input.
- A Rockville 4-channel stereo unit supporting RCA cables. - The Rockville unit combines audio from a number of different filter units:
- A pair of Autek QF-1a units to run Stereo-Cw and Stereo-RTTY
These filters are front ended by a Radio Shaft 16-band Stereo Equalizer
- A pair of MFJ 752 "Signal Enhancer" units for Stereo-Ssb - An MFJ-783 Super DSP filter to supplement Ssb audio in the left channel.
- A JPS NIR-10 cascaded into an NIR-12 to supplement filtering in the right channel.
these settings can then be left for future operations. Altho I don't use one, you might find it useful
to create an audio filter "cheat sheet" to record the ideal settings for each approach used, similar to the way we do with manually adjusted antenna tuners.
twiddling can make a hopelessly unreadable signal to become readable.
of your Ssb audio is questionable, repeats will still be necessary. Once we have the receive-side of the equation worked out, next up is to optimize the transmit side of the operation; first mic filter wise, followed by perfecting how we actually use the hardwire to get our vocal communication thru.
the following can be switched into the transmit audio line:
- A $13 Ebay-special full frequency microphone
- A Heil PRO-set
- A Radio Shaft stereo microphone (intended for reel-to-reel tape recorders)
- RTTY transmit audio from the laptop sound card
the MONI circuit built-in to many transceivers.
to know that is an external receiver (w/the RF gain turned down to prevent front-end overload distortion).
the contest event. While you're at it, recording .WAV/.MP3 files will not only save your voice later,
it will capture and repeat perfect pronunciation (when you eventually do get it right).



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