In article <19130030@hp-ptp.ptp.hp.com> efbasham@hp-ptp.ptp.hp.com (Everett Fred Basham) writes:
>Forget using Motorola equipment on the HAM band at 902-928 MHz. Motorola
>900 trunked gear is designed to receive at around 934 MHz - the output
>frequency of the trunked systems. As it turns out, there is an overpowering
>signal at 931 MHz. If you don't know what it is, look on the back of the
>little black box hanging off your belt right now. Since this signal would
>wreck havoc with the receiver, M put a high pass filter with a cutoff just
>above the 931 MHz paging frequencies. Consequently, HAM is substantially
>attenuated. Even hacking the firmware / programming (not that anyone would
>actually do such a thing) woulnd't restore it without major re-work of the
>RF deck. I haven't checked this, but it comes from several HAMs who have
>bought 900 MHz Moto. radios only to find out they are essentially useless
>for HAM applications, for this very reason.
The Motorola Maxtrac 900 go's to the ham band without too much work. First changing the two filters in the front end to 915 Mhz (Murata P/N DFC3R915P025BTD ph no 404-684-7821) is the fix for the receiver. Then changing two chip caps in the VCO brings the radio to the ham band. Then if the radio is the trunked version you want to change the Eprom to a FVN4019A conventional firmware. Using Conventional software you will be able to program the radio just disreguard the warning that you have entered an unautho
rized freq.
I have a 900 Maxtrac in my truck and it works well with the above mods.
Dean
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Date: 26 Oct 93 16:47:32 GMT
From: news-mail-gateway@ucsd.edu
Subject: BAUD VS BAUDS
To: info-hams@ucsd.edu
IS THE TERM BAUD LIKE MOST PEOPLE USE OR IS IT BAUDS LIKE THE ARRL FOLKS