On Thu, Jun 12, 2014 at 10:56 PM, Forrest wfj@usa.com wrote:
I asked a while back, but got no response. Since there has been a bit of a conversation about transmitting, I thought I would ask again….
Using CHIRP (latest stable or daily) I find that I can specify odd splits (not just +/- .6), but the software doesn’t seem to save them correctly. Anyone notice this besides me? If I set it up in CHIRP, it will hold long enough to program the radio, but it reverts to some odd mixture of either + or - in that column if I try to save and reload the spreadsheet. I have to reset the correct transmit freq every time I use it.
I’m famous for oddball issues, so if this affects no one else, I’ll just live with it, but I would call it a bug worth noting to the software developer(s). BTW, I’m using the Mac version, but I don’t think it matters. Seems like I had the same issue when I tried a Win version.
TIA, Forrest
Forrest,
What you are describing is normal behavior when the RX and TX frequencies are in the same band and within the OFFSET range of the radio. CHIRP will examine the 2 frequencies, calculate the difference and update the entry using the Duplex (- or +) and OFFSET equivalent. Try these examples.
1. Enter a standard VHF repeater using split Frequency = 146.840 Duplex = split Offset = 146.240
Now press the [Go] button (or save to an .img file or upload to the radio). The cells will be changed to Duplex = - Offset = 0.600000
2. Enter a standard UHF repeater using split Frequency = 444.900 Duplex = split Offset = 449.900
Now press the [Go] button (or save to an .img file or upload to the radio). The cells will be changed to Duplex = + Offset = 5.000000
3. Enter a made up split Frequency = 137.000 Duplex = split Offset = 177.000
Now press the [Go] button (or save to an .img file or upload to the radio). The cells will be changed to Duplex = + Offset = 40.000000
All three examples are change to their correct and equivalent -/+ Duplex and OFFSET values.
Jim KC9HI