[chirp_users] offset precision

[Tom TA]

Greetings,

     The error of 110 Hz doesn't seem very significant but the 1,550 Hz 
error could cause some operational problems. Do the two different error 
levels relate to different shift directions?

     I recently programmed some channels into a UV-5R+ manually and read 
the memory bank back with Chirp. There was no error in the offsets as 
read by Chirp. However I cannot use menu 26 to check the offsets in 
/Channel Mode/ as it always reports zero. I confirm the proper offset by 
using the reverse function which displays the shift but of course with 1 
KHz limited resolution.

     My firmware version is BFB927. I wonder what firmware version you 
have? (Easy to determine by holding the #3 key pressed during power up.)

     I also wonder if there is a list of known problems with different 
firmware versions posted somewhere?

73
Tom
VA7TA




On 16-02-28 12:00 PM, chirp_users-request at intrepid.danplanet.com wrote:
> Message: 16
> Date: Sun, 28 Feb 2016 19:12:05 +0000 (UTC)
> From: Adk Lover<progrock01 at yahoo.com>
> Subject: [chirp_users] offset precision
> To:"chirp_users at intrepid.danplanet.com"
> 	<chirp_users at intrepid.danplanet.com>
> Message-ID:
> 	<550474104.655095.1456686725490.JavaMail.yahoo at mail.yahoo.com>
> Content-Type: text/plain; charset="utf-8"
>
> Hi,I've just set up CHIRP and downloaded the memory channel list from my Baofeng UV-5RV2+.
> I notice that the offsets on my saved channels are not exactly what I expected to see.
>
> For the channels where I have set the offset to 000.600 in the radio, it's showing 0.601550 or 0.599890 in CHIRP.
> For the channels where I have set the offset to 005.000 in the radio, it's showing 5.001550 or 4.999890 in CHIRP.
> My question is, do I need to make any changes to these offset entries before writing the image back to the radio?? Should I fix the entries to show the exact frequencies that I entered in the radio, or are the shifted frequencies correct?
> As a side note, I see that the default offset for channels that I have not set up are exactly 0.600000.
> I'm afraid to write an image back to the radio that could cause a problem so I thought it would be best to check first.
>
> Thanks.Ed
>
>
>
> -------------- next part --------------
> An HTML attachment was scrubbed...
> URL:http://intrepid.danplanet.com/pipermail/chirp_users/attachments/20160228/4d098963/attachment-0001.html  
>
> ------------------------------
>
> Message: 17
> Date: Sun, 28 Feb 2016 14:43:19 -0500
> From: Jim Unroe<rock.unroe at gmail.com>
> Subject: Re: [chirp_users] offset precision
> To: Adk Lover<progrock01 at yahoo.com>, 	Discussion of CHIRP
> 	<chirp_users at intrepid.danplanet.com>
> Message-ID:
> 	<CADnO8U6VY1wigL7sj3gEvPQdfy9HMt+UOtq+w9FHF0cOGD68cA at mail.gmail.com>
> Content-Type: text/plain; charset=UTF-8
>
> On Sun, Feb 28, 2016 at 2:12 PM, Adk Lover via chirp_users
> <chirp_users at intrepid.danplanet.com>  wrote:
>> >Hi,
>> >I've just set up CHIRP and downloaded the memory channel list from my
>> >Baofeng UV-5RV2+.
>> >
>> >I notice that the offsets on my saved channels are not exactly what I
>> >expected to see.
>> >
>> >For the channels where I have set the offset to 000.600 in the radio, it's
>> >showing 0.601550 or 0.599890 in CHIRP.
>> >
>> >For the channels where I have set the offset to 005.000 in the radio, it's
>> >showing 5.001550 or 4.999890 in CHIRP.
>> >
>> >My question is, do I need to make any changes to these offset entries before
>> >writing the image back to the radio?  Should I fix the entries to show the
>> >exact frequencies that I entered in the radio, or are the shifted
>> >frequencies correct?
>> >
>> >As a side note, I see that the default offset for channels that I have not
>> >set up are exactly 0.600000.
>> >
>> >I'm afraid to write an image back to the radio that could cause a problem so
>> >I thought it would be best to check first.
>> >
>> >Thanks.
>> >Ed
>> >
> CHIRP is showing you the frequency that has been manually programmed
> into the radio. This is a bug in the radio when programming manually.
>
> These radios don't use offsets in memory channels and in some firmware
> versions the TX frequency is calculated incorrectly when using
> "reverse mode" to determine the TX frequency.
>
> If you want the manually programmed TX frequency to be correct, then
> use to old method where you write the RX frequency to an empty
> channel, then enter the TX frequency into the VFO yourself and write
> it to the same channel.
>
> If you correct this with CHIRP, then it will be correct in the radio.
>
> Jim KC9HI
>
>
> ------------------------------
>
> _______________________________________________
> chirp_users mailing list
> chirp_users at intrepid.danplanet.com
> http://intrepid.danplanet.com/mailman/listinfo/chirp_users
> To unsubscribe, send an email tochirp_users-unsubscribe at intrepid.danplanet.com
>
> End of chirp_users Digest, Vol 86, Issue 23
> *******************************************
>

-------------- next part --------------
An HTML attachment was scrubbed...
URL: http://intrepid.danplanet.com/pipermail/chirp_users/attachments/20160228/5d94df4a/attachment.html