I've recently been tasked to link a couple of VHF repeaters with a UHF
link.. not too difficult, however the link radio's provided are Relm
SMU's, they are all programmed and ready to go.
I'm just having trouble finding any good docs on locations to tap for
Rcv/Tx audio and maybe COS in
Dave,
I've done a number of radios for making links. Usually commercial rigs bring
out COS on a connector for they are often used in other applications such as
remoted bases, etc. Having the docs is a must.
On Ham rigs COS is very seldom brought out. I've dug inside to find. It is
there
I have had good success in obtaining a COS signal from an 'unknown circuit' by
opening the lead to the front panel LED that indicates receive activity. Place
the diode of an opto isolator in series with the LED and then use the
transistor section of the opto isolator in your circuit as the COS
wd8chl wrote:
Speaking of that, I have 7 CSI-32's I want to sell off. An 8th is up at
a site and will be replaced soon. All were removed from service at the
end of last year working. I have cables for the 7, although I don't
think they are factory cables.
I'd like to get $50 a piece for
Thanks for the ideas... I'll have to check on the Relm I have and see if
she has a 'busy' indicator, thinking it does, should have some 4N25's or
similar laying on the bench somewhere from another project, fortunately the
controllers aren't fussy and can use either + or - for COS.
I was trying
Another place to look for rx audio is the top side of the volume pot. Some are
squelch gated and some aren't, but it should be constant level and decent
frequency response.
Also, be aware that if you are using tone decode on the rx, the busy light may
not follow the tone decode function. Some
Hi guys
It's been a while since I last visited this forum. I wanted to share
some info about a db420b antenna that has been acting up for some time.
This antenna is duplexed on an amateur radio repeater and has been
causing popping and cracking when the tx is on. When first installed new
about
Thanks Mark for sharing your experience. I'm using a DB-411 on a
control link (RX only) but it also serves as a backup to the main
repeater antenna. If it does anything funny then I guess I know where
to look ;).
- Darrell/KA7BTV
Hi Guys
does anyone out there happen to have a pinout on the accesory connecter
on the back of the machine
N9ex
U.S. Consumer Product Safety Commission
Office of Information and Public Affairs
Washington, DC 20207
FOR IMMEDIATE RELEASE
July 2, 2008
Release #08-319
Firm's Recall Hotline: (800) 843-7422
CPSC Recall Hotline: (800) 638-2772
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