I've had pretty good luck down to 438MHz with about the half dozen in
my stack. They're all very solid to 440MHz. All of my stack are 1-10W
versions.
On Dec 30, 2008, at 5:43 PM, Eric Lemmon wrote:
Joe,
No hack is necessary. Simply use the "Shift Key Technique" to enter
frequencies down to 434.000 MHz. To do this, open the RSS and tab
into the
RX or TX frequency window. Hold down the shift key, and type in the
first
three digits. Release the shift key and type in the decimal point.
Again
hold down the shift key and type in the remaining digits, including
all
trailing zeroes. Then, tab out of that window. The frequency you
entered
will appear in the window.
Please understand that the above technique will program the R1225 for
out-of-band frequencies, but the RX and TX performance will rapidly
deteriorate, the further out of band you go. Expect the RX
sensitivity to
decrease as you go below 444 MHz, and the TX power amplifier will
not be
happy- so reduce the power setting. The R1225 does not have a built-in
circulator like its high-tier cousins, so there is a risk of burning
up the
PA with out-of-band operation. Good luck!
73, Eric Lemmon WB6FLY
-----Original Message-----
From: Repeater-Builder@yahoogroups.com
[mailto:repeater-buil...@yahoogroups.com] On Behalf Of Joe
Sent: Tuesday, December 30, 2008 3:14 PM
To: Repeater-Builder@yahoogroups.com
Subject: [Repeater-Builder] R1225 below 444Mhz?
Is there a hack to program the Motorola R1225 under 444Mhz?
73, Joe, K1ike
--
Cort Buffington
H: +1-785-838-3034
M: +1-785-865-7206
