RE: [digitalradio] Re: Humans as Busy Detectors

2007-09-18 Thread Peter G. Viscarola 

I hold QSOs every weekend. Its been months since I was last QRM'd
by another operator. 


Really?  Then either your luck, your operating practices, or your
station must be MUCH different than mine. I get QRM'ed every week at
least once.

I'll be in QSO with a station and WHAM! Somebody starts to call CQ on
top of us.  Or just off to the side, overlapping our QSO slightly. Or,
I'll be attempting to tune-in a weak DX station that's either CQ'ing or
in QSO and somebody will start to CQ right over the DX (THIS happens
most frequently of all).

I'm not saying any of this is INTENTIONAL QRM... but it sure is a common
occurrence for me,

de Peter K1PGV

RE: [digitalradio] Re: Humans as Busy Detectors

2007-09-18 Thread Dave AA6YQ 
My QSOs fall into three categories:

1. chasing DX I need in CW, RTTY, and phone

2. running CW at the low end of whatever band is open

3. ragchewing in PSK31 or PSK63

I didn't count DX cops and their associated QRM in my statistics.

The only time I remember substantially more frequent QRM was at the peak of
the mid-nineties solar cycle on 10m; I worked more phone than CW back then,
and wasn't doing RTTY at all.

73,

   Dave, AA6YQ



-Original Message-
From: digitalradio@yahoogroups.com [mailto:[EMAIL PROTECTED]
Behalf Of Peter G. Viscarola
Sent: Tuesday, September 18, 2007 10:08 AM
To: digitalradio@yahoogroups.com
Subject: RE: [digitalradio] Re: Humans as Busy Detectors



I hold QSOs every weekend. Its been months since I was last QRM'd
by another operator.


Really? Then either your luck, your operating practices, or your
station must be MUCH different than mine. I get QRM'ed every week at
least once.

I'll be in QSO with a station and WHAM! Somebody starts to call CQ on
top of us. Or just off to the side, overlapping our QSO slightly. Or,
I'll be attempting to tune-in a weak DX station that's either CQ'ing or
in QSO and somebody will start to CQ right over the DX (THIS happens
most frequently of all).

I'm not saying any of this is INTENTIONAL QRM... but it sure is a common
occurrence for me,

de Peter K1PGV

Re: [digitalradio] Re: Humans as Busy Detectors

2007-09-16 Thread Howard Brown 
Bonnie, do you mean 27.185 mHz?

Howard K5hb

- Original Message 
From: expeditionradio [EMAIL PROTECTED]
To: digitalradio@yahoogroups.com
Sent: Sunday, September 16, 2007 7:18:32 PM
Subject: [digitalradio] Re: Humans as Busy Detectors









  



First, we should put this so-called busy-channel detection in 
perspective:



Humans are very poor busy channel detectors... whether through human

error, or through ignorance, or through intention. 



Just try to hold a simple voice, CW, image, messaging, or texting QSO

on one of the more active ham bands on any weekend will prove this

fact to you beyond any doubt.



Bonnie KQ6XA






  







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