, August 03, 2008 3:46 PM
To: Repeater-Builder@yahoogroups.com
Subject: Re: [Repeater-Builder] Re: Measuring Desense
John might find this article interesting...
http://www.repeater
http://www.repeater-builder.com/tech-info/effectivesens.html
-builder.com/tech-info/effectivesens.html
Mike WA6ILQ
Hi John,
Some quick opinion included information...
I would make 100% sure the duplexer notches are properly
placed. I would remove the power amplifier and the preamplifier
and resolve the repeater operation to the best possible
basic level before replacing them back into the system.
Right on the money Scott... many times the antenna and/or
feed line can be the trouble maker. Although not practical
in many cases... a 50 ohm test termination at the top end
of the feed line can tell you a lot...
Knowing the effective sensitivity at the site is a big deal
often overlooked
John might find this article interesting...
http://www.repeater-builder.com/tech-info/effectivesens.html
Mike WA6ILQ
At 09:56 AM 08/03/08, you wrote:
Right on the money Scott... many times the antenna and/or
feed line can be the trouble maker. Although not practical
in many cases... a 50 ohm
My next question would be... were the original cables
RG-400 type?
s.
John Transue [EMAIL PROTECTED] wrote:
Skipp,
We have new commercially made RG-400 cables on both the
transmit and receive side, and we have RG-214 from the
tee to the Heliax transmission line. The new cables
could
Randy,
I think this is what we said, just little difference in the time.
73, ron, n9ee/r
From: wb8art [EMAIL PROTECTED]
Date: 2008/07/12 Sat PM 07:51:59 EDT
To: Repeater-Builder@yahoogroups.com
Subject: [Repeater-Builder] Re: Measuring Desense
I don't beleive
For those who have a Unidapt kit, there is a product similar to the
FXR coupler available from RF Industries.
The RF Industries variable signal sampler is rated from 20-3000 MHz,
500 Watts power, 20-80 dB coupling. This device comes with type 'N'
connectors which can be changed using the RF
I don't beleive that to be correct. The FCC has mandated 3 years for
the continued carriage of analog. Some exceptions on small systems
and low bandwidth but most will still carry analog.
Randy
--- In Repeater-Builder@yahoogroups.com, Nate Duehr [EMAIL PROTECTED] wrote:
On Jul 12,
] Re: Measuring Desense
--- In Repeater-Builder@yahoogroups.com, wd8chl [EMAIL PROTECTED] wrote:
DTV sucks rocks. Period.
I just bought my DTV converter. NO problems. Period. Using an FM
broadcast turnstile at 20 feet AGL for antenna. hehehe No preamp.
Good signals from 8 DTV
--- In Repeater-Builder@yahoogroups.com, wd8chl [EMAIL PROTECTED] wrote:
DTV sucks rocks. Period.
I just bought my DTV converter. NO problems. Period. Using an FM
broadcast turnstile at 20 feet AGL for antenna. hehehe No preamp.
Good signals from 8 DTV transmitters/20 video feeds 15-45
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