I am quite certain that I have seen evidence of the skip not working the same
in both directions.
Stan, K4SBZ
"Real radio bounces off the sky."
> On Jan 22, 2023, at 10:45 AM, K9MA <k9ma@sdellington.us> wrote:
>
> That's true, but only part of the story. On the HF bands, receiver noise is
> almost always negligible, so absolute signal strength doesn't matter much. If
> your random wire isn't matched, all bets are off. Even modern radios have
> drastically different S-meter calibrations: 3 or 6 dB per S-unit. You may
> also have various lossy components in the received signal path. Noise levels
> also vary enormously, so even at the same absolute signal strength, S/N can
> be very different. And then, of course, there's QRM and competition.
>
> 73,
> Scott K9MA
>
>> On 1/22/2023 12:10 AM, Barry Jacobson wrote:
>> Hi guys, it seems that in a contest like NAQP where presumably almost
>> everyone is running the same 100 W power, you should be able to hear the
>> other guy at the same level he hears you. Even if the other guy has a
>> $25,000 dollar beam, and you have a simple 10 foot random wire, the
>> weakness in your transmission ability will also weaken your received signal
>> just as much in the other direction. So if you can hear him, it guarantees
>> he can hear you. (Unless one or both of you has separate receive and
>> transmit antennas, or the receivers you are using are of very different
>> quality.) Does that make any sense?
>>
>> Barry WA2VIU
>>
>> --
>> Barry Jacobson
>> WA2VIU
>> bdj@alum.mit.edu
>> @bdj_phd
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>
>
> --
> Scott K9MA
>
> k9ma@sdellington.us
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