BCD436HP/BCD536HP: What pins on the bcd436hp can I tap to get 3.3V

[902]

Not have have all my parts here. Quick question. Would removing the metal shield to accommodate this gps module have a significant effect on signal receptions.

OH MY! The first thing I thought of seeing everything all spread out was Heathkit!

There is another thread on shielding the battery door to reduce UHF interference. I would say that removing the shield might reduce the performance in some manner, but exactly how would be difficult to say without the proper instrumentation. Also, pulling a lead out of a shielded area might also create some degree of unintentional radiation that might require some kind of mitigation.

If you do choose to do that, could you please post your results? I'd love to see how you make out.

Good luck!

 

[fourthhorseman]

One more thing the little 3.3v voltage regulator i might use to tape intp the battery with a on and off mini switch. Still thinking

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Switches....Could possibly use a small 2 or 4 bank dip switch...
http://www.ebay.com/itm/SDA04-SMT-D...411186?hash=item5af11f3632:g:Ww0AAMXQoiJRioJM
or.....slide....
100 Pcs Slide Micro Mini Switch SMT SMD | eBay

To re-up..

Where did you source the 3.3 regulator?

 

[fourthhorseman]

FOUND THE REG...
https://www.amazon.com/DC-DC-Step-D...=UTF8&qid=1472166821&sr=8-31&keywords=AMS1117

 

[fourthhorseman]

Any forward movement or you give up?...chuckling...

Still waiting on the regulators and switches here....

 

[bazil747]

Will be working on it next week or so. On shift rotation this week

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[fourthhorseman]

Curious,
How are you thinking of proceeding as far as programming,,default is 9600baud, looking at going to 4800..
using the globaltop GPS/PC tool...
Still...Waiting on the dang regulators..Hoping today, 436 is disassembled on a shelf..starting to fiend for some DMR...Soon..Soon......
But going to pick up a rs232 to usb (pl2303) for programming... Locally..(lucky to have a parts shop near by ;>)

 

[fourthhorseman]

have you had any luck with UNIDEN recognizing the NMEA format coming fromthe module?..
Ive got the baud set - 4800....but the radios are not getting a data signal?...

any luck on your end?...using Ucenter here to progrm..

 

[bazil747]

My gps module is set to 9600 baud rate. Which is the default. You can change the baud rate but once the the module looses power it will return back to its default baud rate . The best way to go is set your radio to 9600 baud rate

Sent from my SM-N930T using Tapatalk

 

[fourthhorseman]

9600 shows the same results, tried that already..
Have you powered the module?..and had the radio
accept the incoming data?..

the mem loss on pwr dwn is no biggie, add a batt and
its a-o-k..

Im ready to go, the module will fit easily in the radio, lots
of room for the reg and the switch wired to batt comp..its
about 5mm long/ 1.5mm thick..

just want to resolve the nmea message issue...

 

[fourthhorseman]

Any forward progress on your end?..

 

[UPMan]

My gps module is set to 9600 baud rate. Which is the default. You can change the baud rate but once the the module looses power it will return back to its default baud rate . The best way to go is set your radio to 9600 baud rate

Sent from my SM-N930T using Tapatalk

That is bizarre. NMEA standard for GPS data is 4800 bps. I've never seen or heard of a module that does not conform to the standard, before.

 

[fourthhorseman]

Ive worked with about a half dozen of these mini GPS units, They seem to be coming from the source with 9600 as the std default..Baffling I know..

 

[fourthhorseman]

Well..
To close my involvement in this thread, Seems its gone quiet..

Ive managed Success!..
Details will soon follow in a new thread - dont want the write up
bottom of page 2....

GPS without wires for the 436HP -
Take note, What is Not in the pic...A GPS Cable...