Just picked up a couple of Instalert low band receivers, both working nicely on 33.86 MHz and in pretty decent condition. One is the model with the little mechanical "flag" in a window that gives visual notice of an alert, and the other is essentially the same but with a lamp rather than the little flag.
I'd like to tune these up for somewhat better sensitivity (right now they're in the neighborhood of 1-1.5uV for 20dB SINAD) but have never seen any documentation on them. Anyone got any idea where docs can be scared up?
Thanks,
Tom WA8PYR
I'd like to tune these up for somewhat better sensitivity (right now they're in the neighborhood of 1-1.5uV for 20dB SINAD) but have never seen any documentation on them. Anyone got any idea where docs can be scared up?
Thanks,
Tom WA8PYR