I used one twisted pair in un-shielded CAT 5 in my Fire Dept to connect
a radio to an audio amplifier system.
The run was over 100 ft. The audio was tapped at the internal speaker of
the radio at a comfortable listening level.
The other end of the wire went into the aux audio input of a audio
am
Attached is an article from WD8OYG that is very good.
N3FLR - Frank
On 10/28/2009 12:01 AM, larynl2 wrote:
--- In Repeater-Builder@yahoogroups.com, "wb5hqh" wrote:
How do you combine a 2 meter voice and 2 meter digipeater on the same antenna??
Here, we have a repeater on 147.06 and
Try replacing the antenna with a dummy load and recheck the swr.
If it is good, then you have an antenna problem.
I'm assuming you are checking the SWR after the duplexers ?
Actually a directional watt meter may give you a better idea how it is
working.
N3FLR - Frank
On 5/24/2009 9:55 PM, agrimm0
Depends on what kind of cable on your 500' run.
Shielded cable, try Earth ground on the shield on both ends.
I have got away using Cat-5 cable for audio with a 100' run.
Use 2 cables 1 for Tx and 1 for RX to prevent cross talk.
Cat -5 has 4 pairs of wire, solid colors all + and stripes all -
con
Here is a little mixer circuit that will work for mixing mics.
I never built this one to really speak for how well it works.
http://www.aaroncake.net/circuits/mixer2.htm
N3FLR - Frank
On 1/29/2006 2:11 PM, [EMAIL PROTECTED] wrote:
>I am not an expert, but the first mic circuit would need an impe
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