Sent: Saturday, December 29, 2007 07:16 UTC
Subject: [digitalradio] Ham Radio ALE High Frequency Network (Re: FCC to Kill
Digital Radio?)
The Ham Radio ALE High Frequency Network (HFN)
http://www.hflink.com/hfn/
is the only HF 24/7 network on ham radio that can be accessed and used
-
From: expeditionradio
To: digitalradio@yahoogroups.com
Sent: Saturday, December 29, 2007 07:16 UTC
Subject: [digitalradio] Ham Radio ALE High Frequency Network (Re: FCC to
Kill Digital Radio?)
The Ham Radio ALE High Frequency Network (HFN)
http://www.hflink.com/hfn
and phasing SSB
transmitters have audio low-pass filters that roll off at 30-42 dB per octave.
73,
John
KD6OZH
- Original Message -
From: W2XJ
To: digitalradio@yahoogroups.com
Sent: Saturday, December 29, 2007 08:45 UTC
Subject: Re: [digitalradio] Ham Radio ALE High Frequency
from FM repeaters. I also
realized that AMSAT linear transponders are wide-band devices.
73,
John
KD6OZH
- Original Message -
From: W2XJ
To: digitalradio@yahoogroups.com
Sent: Saturday, December 29, 2007 08:45 UTC
Subject: Re: [digitalradio] Ham Radio ALE High Frequency
I cannot believe the holder of a valid ham radio
license would ever come out and say this
FROM .
--- John B. Stephensen [EMAIL PROTECTED] wrote:
If the rule changes are to extend beyond 29 MHz,
narrow-band segments on the VHF and UHF bands should
allow a maximum bandwidth of 8 kHz.
: [digitalradio] Ham Radio ALE High Frequency Network
(Re: FCC to Kill Digital Radio?)
I would almost agree except for the 8 kHz wideband mode. That
can easily
be 6 kHz and accommodate AM as used in HF communications. A wider
bandwidth just opens the door to more problems. I will file
To: digitalradio@yahoogroups.com
Sent: Saturday, December 29, 2007 08:45 UTC
Subject: Re: [digitalradio] Ham Radio ALE High Frequency Network
(Re: FCC to Kill Digital Radio?)
I would almost agree except for the 8 kHz wideband mode. That
can easily
be 6 kHz
- Original Message -
From: bruce mallon
To: digitalradio@yahoogroups.com
Cc: [EMAIL PROTECTED]
Sent: Saturday, December 29, 2007 13:19 UTC
Subject: Re: [digitalradio] Ham Radio ALE High Frequency Network (Re: FCC to
Kill Digital Radio?)
I cannot believe the holder of a valid
bandwidth should also be available for data.
73,
John
KD6OZH
- Original Message -
From: bruce mallon
To: digitalradio@yahoogroups.com
Cc: [EMAIL PROTECTED]
Sent: Saturday, December 29, 2007 13:19 UTC
Subject: Re: [digitalradio] Ham Radio ALE High Frequency Network (Re: FCC
The Ham Radio ALE High Frequency Network (HFN)
http://www.hflink.com/hfn/
is the only HF 24/7 network on ham radio that can be accessed and used
for text messaging without an external computer or modem. HFN may also
be used with a regular HF ham radio and a laptop or PC computer
soundcard using
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