Is there a diagram available .over here I am currently using a sm4450
repeater modification diagram using 2 separate bs170 and transistor to
switch 2 relays which control the ptt on both repeaters but I feel it is
too slow .Also I find the ctcss is a little slow to detect the tone are
there any inmprovements that can improve the detect time?
Thank You,
Ian Wells,
Kerinvale Comaudio,
361 Camboon Road.Biloela.4715
Phone 0749922574 or 0409159932
www.kerinvalecomaudio.com.au
-------Original Message-------
From: Gareth Bennett \(Ihug\)
Date: 12/06/2009 23:08:22
To: Repeater-Builder@yahoogroups.com
Subject: Re: [Repeater-Builder] Circuit diagram for interfacing 2 maxon
pm150 repeaters together
Hi Ian,
How about building a 3 way 600Z resistive bridge with 7x 220R resistors,
feeding each TX into two of the three ports and utilising the last port for
either RX1 or RX2, which is switched into the remaining port via the active
RX COS control driving into a DPST relay to select the active RX? ... Simple
and it works .
Cheers
Gareth Bennett
From: kerinvale
To: Repeater-Builder@yahoogroups.com
Sent: Saturday, June 13, 2009 12:31 AM
Subject: [Repeater-Builder] Circuit diagram for interfacing 2 maxon pm150
repeaters together
Would anyone have a simple diagram for joining 2 separate maxon sm4450
repeaters together in real time
I.e. Rx1 --+---tx1
I
Rx2--+----tx2
So what is received from rx1 transmitts to tx1 and TX 2 and what is received
from rx2 goes over tx1 and tx2
Thank You,
Ian Wells,
Kerinvale Comaudio,
361 Camboon Road.Biloela.4715
Phone 0749922574 or 0409159932
www.kerinvalecomaudio.com.au
