Rx wider frequency range

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F1RMB
Posts: 2517
Joined: Sat Nov 16, 2019 5:42 am
Location: Grenoble, France

Re: Rx wider frequency range

Post by F1RMB » Mon Apr 20, 2020 1:59 pm

Hi,
CX2JO wrote:
Mon Apr 20, 2020 1:54 pm
F1RMB wrote:
Mon Apr 20, 2020 1:35 pm
Hi,
If I verify that exactly, then I have another one that in uhf I cannot achieve that transmits in hotspot mode in uhf, I don't know if this problem has happened to someone. Do you say that in the 200mhz band in rx and tx it has the same range? and what power does it offer?
thanks
CX2JO wrote:
Mon Apr 20, 2020 1:21 pm
HI.MY BAOFEN DM-1801 IN TX WORK:

136000 to 172000 - vhf
381000 to 500000 - uhf


does not work at 200 mhz, is this so? Can someone make it work in that band correctly? :cry:
73
Did you turned "Band Limits" off, in the Options ?

Cheers.
---
Daniel
Sorry but I don't get the question.
If Band Limits is ON (default setting), the 1.5m band is : 222 .. 225MHz

Cheers.
---
Daniel

CX2JO
Posts: 4
Joined: Mon Apr 20, 2020 1:17 pm

Re: Rx wider frequency range

Post by CX2JO » Mon Apr 20, 2020 2:37 pm

If Band Limits is ON (default setting), the 1.5m band is : 222 .. 225MHz
ok,
With which version of fw do you manage to transmit in that band? Could you pass me the link or the file for 1801? since with the fw dated 04/18 I could not make it transmit.
73
Javier ;)
F1RMB wrote:
Mon Apr 20, 2020 1:59 pm
Hi,
CX2JO wrote:
Mon Apr 20, 2020 1:54 pm
F1RMB wrote:
Mon Apr 20, 2020 1:35 pm
Hi,
If I verify that exactly, then I have another one that in uhf I cannot achieve that transmits in hotspot mode in uhf, I don't know if this problem has happened to someone. Do you say that in the 200mhz band in rx and tx it has the same range? and what power does it offer?
thanks



Did you turned "Band Limits" off, in the Options ?

Cheers.
---
Daniel
Sorry but I don't get the question.
If Band Limits is ON (default setting), the 1.5m band is : 222 .. 225MHz

Cheers.
---
Daniel

User avatar
F1RMB
Posts: 2517
Joined: Sat Nov 16, 2019 5:42 am
Location: Grenoble, France

Re: Rx wider frequency range

Post by F1RMB » Mon Apr 20, 2020 2:43 pm

Hi,
CX2JO wrote:
Mon Apr 20, 2020 2:37 pm
If Band Limits is ON (default setting), the 1.5m band is : 222 .. 225MHz
ok,
With which version of fw do you manage to transmit in that band? Could you pass me the link or the file for 1801? since with the fw dated 04/18 I could not make it transmit.
73
Javier ;)
F1RMB wrote:
Mon Apr 20, 2020 1:59 pm
Hi,
CX2JO wrote:
Mon Apr 20, 2020 1:54 pm
Sorry but I don't get the question.
If Band Limits is ON (default setting), the 1.5m band is : 222 .. 225MHz

Cheers.
---
Daniel
Flash the firmware posted by Roger in this thread, in the opening post.

Cheers.
---
Daniel

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OK2HAD
Posts: 52
Joined: Wed Jan 08, 2020 1:10 pm
Location: Uherský Brod (Czech Republic)

Re: Rx wider frequency range

Post by OK2HAD » Tue Apr 21, 2020 5:25 am

Hi, my gd77 with this firmware goes set in range:
127,000 - 178,000
190,000 - 282,000
380,000 - 564,000

YO3VTH
Posts: 19
Joined: Sun Jun 21, 2020 8:59 pm

Re: Rx wider frequency range

Post by YO3VTH » Mon May 15, 2023 9:09 pm

:D

G4EML
Posts: 919
Joined: Sat Nov 16, 2019 10:01 am

Re: Rx wider frequency range

Post by G4EML » Mon May 15, 2023 9:33 pm

Note that the 220 MHz band is experimental and intended for receive only with reduced sensitivity. Although it appears to transmit, most of the power is NOT on 220 MHZ.

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