On the topic, I'm looking for good mobiles to make repeaters from. I
like Motorola a lot, but programming software is expensive and so are
the radios. With that said, I'd like to have access to on the back of
the radio to:
RX audio at a reasonable level (not speaker) (muted by COS _OR_ PL)
Carrier detect (COS/COR/Noise Squelch)
PL detect
TX audio at a reasonable level (not an un-amplified mic level input)
PTT
PL strip (turn the PL on/off at will)
Cost $250 range
Programming software < $arm+leg
In any event, I'd use the transmitter as an exciter in the 1-5w range,
so expect that heat should be a problem in that range of output.
So I've taken this discussion WAY far to the other side of the F221
perhaps, but I think this is kind of a universal need for many of us.
My main reason for this is that I'm looking at making a system with
multiple remote receivers. I'd like one radio building block that
could perform any of the functions from repeater main receiver or
exciter, to remote receiver, link transmitter, link receiver, etc. If
I could find one cost-effective radio to use this way, It would make
life really easy (I know, life's not fair, but we could get a break
every now and again?).
73 DE N0MJS
On Feb 25, 2008, at 11:02 AM, skipp025 wrote:
Hi Jed,
One might assume any newer generation of radio should be able to
operate digital coded squelch "DCS" (aka "DPL").
I wouldn't know about any discriminator audio availability from
that radio... I myself sell one of "the other brands" (Kenwood).
Don't expect the radio to output full power 24/7. As with many
mobile radios the heatsink will get warm/hot and with a bit of
luck the power protection circuit will then greatly reduce or
even cut off the rf output power.
So for many repeater applications... it's more than prudent to
run them on the low power setting and or place a fan/blower on
the heat sink and hope it stays cool in lock to talk operation.
Depending on the mass of the heatsink and the air movement past...
it's quite possible to pull off a fair amount of full power
operation before the protection circuit throws out the reduce
power anchor.
cheers,
skipp
> Jed Barton <[EMAIL PROTECTED]> wrote:
>
> Hey guys, alright i need some input here.
> Thinking very seriously of getting few icom f221s and using them as
> repeaters. My concern is with the audio quality.
> Can these things do direct FM?
> Also, is there a way of getting descriminator audio out of them on
the
> connecter?
> Having these capabilities would be fantastic.
> I know some of the older Icoms were phase modulated, but wonder if
> these can do direct FM.
> Thanks,
> Jed
>
--
Cort Buffington
H: +1-785-838-3034
M: +1-785-865-7206
