Jumbospot not receiving

MMDVM_HS Hat hardware
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K9JTV
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Joined: Fri Apr 13, 2018 4:35 am
Location: Martinsville, Indiana, USA
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Re: Jumbospot not receiving

Post by K9JTV »

Interesting that I just received three HATs and am experiencing the same problem.

[email protected](ro):~$ sudo pistar-findmodem
Detected MMDVM_HS (GPIO): /dev/ttyAMA0 (MMDVM_HS_Hat-v1.5.2 20201108 14.7456MHz ADF7021 FW by CA6JAU
GitID #89daa20ABCD2CF41C3B437A2000410F)

-Jeff
KE7FNS
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Re: Jumbospot not receiving

Post by KE7FNS »

K9JTV wrote: Fri Sep 03, 2021 7:34 pm Interesting that I just received three HATs and am experiencing the same problem.
What was the exact model and PCB version of the hats you purchased?

I suspect the issue is with the hat itself. People have taken opensource designs and have substituted parts with cheaper components to capitalize on their profits. I assume you bought them recently so contact the seller and request a refund and send them back, its probably too much work to try to figure out why it no longer works.
If someones previous actions are any indication of their future actions, then I predict the deletion and removal of access will happen at any moment. 7-11-2020.

"07/13/20 This Website Has Been Taken Down" ... again :lol: and again
GW0DIV
Posts: 13
Joined: Tue May 01, 2018 5:11 pm

Re: Jumbospot not receiving

Post by GW0DIV »

Just having another play and found that the BER test on MMDVMCAL ignored the radio on VFO A, but received a transmission from VFO B albeit with quite a few errors??
KE7FNS
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Re: Jumbospot not receiving

Post by KE7FNS »

GW0DIV wrote: Tue Sep 28, 2021 5:52 pm Just having another play and found that the BER test on MMDVMCAL ignored the radio on VFO A, but received a transmission from VFO B albeit with quite a few errors??
Then that indicates you have a radio programming error and theres some sort of difference between the settings for VFO A, and VFO B, and not a problem with the hat.
If someones previous actions are any indication of their future actions, then I predict the deletion and removal of access will happen at any moment. 7-11-2020.

"07/13/20 This Website Has Been Taken Down" ... again :lol: and again
GW0DIV
Posts: 13
Joined: Tue May 01, 2018 5:11 pm

Re: Jumbospot not receiving

Post by GW0DIV »

I bought another MMDVM (STM32), that didn't work either. I think there might be a radio problem. I did a factory reset, that didn't help either but I have used the radio through a repeater(?).
KE7FNS
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Re: Jumbospot not receiving

Post by KE7FNS »

GW0DIV wrote: Tue Sep 28, 2021 9:57 pm I bought another MMDVM (STM32), that didn't work either. I think there might be a radio problem. I did a factory reset, that didn't help either but I have used the radio through a repeater(?).
Do you have a simplex hat? and are you programming your radio for simplex operation?
If someones previous actions are any indication of their future actions, then I predict the deletion and removal of access will happen at any moment. 7-11-2020.

"07/13/20 This Website Has Been Taken Down" ... again :lol: and again
GW0DIV
Posts: 13
Joined: Tue May 01, 2018 5:11 pm

Re: Jumbospot not receiving

Post by GW0DIV »

Yes, both are simplex and the radio is set to simplex.

Rhys
GW0DIV
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Re: Jumbospot not receiving

Post by KE7FNS »

GW0DIV wrote: Wed Sep 29, 2021 9:59 pm Yes, both are simplex and the radio is set to simplex.
What band? UHF?

Sort through the differences you have for VFO A and VFO B, you've got something set on one and not the other. I doubt its a problem with the hat, its most likely your radio programming.
If someones previous actions are any indication of their future actions, then I predict the deletion and removal of access will happen at any moment. 7-11-2020.

"07/13/20 This Website Has Been Taken Down" ... again :lol: and again
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