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Re: Dec 16 order of uBitx received Feb 10 via India Post
Vince Vielhaber
I just measured a board. It's 4.9" x 4.7 x 1.1. You can shrink the 4.7 down to 4.5 with a different heat sink. It'll be a tight fit.
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Vince. On 02/10/2018 09:12 PM, VE7WQ wrote:
Hi Chris, --
Michigan VHF Corp. |
Re: How to deal with Broadcast FM QRM
Francisco Neira - OA4CKN
Hello all! I received my bitx40 last wednesday (total newcomer).
Thanks Jerry! I had the issue of the broadcast station at los volume setting but after soldering a 10nF capacitor between cursor and ground of the volume potentiometer, the station dissapeared! ? Thanks for the advice!? 73 de OA4CKN, at grid FH17lw. |
Re: uBITX woes, feeling disheartened.
#ubitx
Sorry all the voltages you mention are wrong!
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Pin 5 & 8 MUST have 12v if your board is connected to power supply 12v. No 12v means RX will not work.. Pin no 1 (Square pad) can have 12v ONLY on TX. I suspect that you are not measuring properly or counting the pins wrong... cant be this way off. Raj At 11-02-2018, you wrote:
ok now that I slept for 12 hours doing better. ok square pad # 12v---pin #3 no volts---pin5 no volts---pin8--0 volts----pin#9--no volts---pin#12---12 volts---pin #14 12 volts---pin #16--12 volts. hop that is correct. with PCB & Radunio unplugged measured connunity, connunity ok. checked k3 no voltage on any pins on receive. Thanks 73's de AC8XZ |
Re: Knobs
Tom Montgomery
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On Feb 10, 2018, at 21:19, N8DAH <Dherron@...> wrote:
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Re: Dec 16 order of uBitx received Feb 10 via India Post
VE7WQ
¿ªÔÆÌåÓýHi Chris, HFSignals Team replied to my enquiry in 3 hours. "Yes, We have received your payment of USD 59.? The order will be shipped in 3-4 days.? Tracking details will be updated once the shipment is done." Sounds like they have it in stock. Do you know how deep a box I need for the BITX40 with Raduino?? I'm planning to repurpose my flaky IC-25/AE (5"x5"x2") for it. Saturday, February 10, 2018, 4:10:02 PM, you wrote: CC> Hi George CC> I assume your PayPal notification is for the payment. PayPal will send CC> another when HF Signals inform them the item has been shipped and that CC> second message should mean it's on it's way. As you can see it took another CC> 10 days to arrive here via India Post and Royal Mail with no further CC> tracking once it was 'in the bag'. I got the Jan 24 message from HF Signals CC> following an enquiry, so I might not have heard anything until the second CC> PayPal message. However, as Chris Gress says, I think they have stock of CC> Bitx40 and if so yours could be shipped quite soon. And arrive even sooner CC> if you use DHL, but I get the impression if you are using DHL in NA they CC> will slap a tax on you. Not sure if that happens UK so I didn't take the chance!! CC> 73 Chris CC> G3SQU 73! George VE7WQ |
Blown by nearby transceiver
#bitx40help
After doing some tests with the rig, I made the mistake of transmitting near the Bitx40 with an ICOM 725 with a badly isolated tuner,
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A quick flash, smoke, and the bitx40 that was only on, no antenna connected, died. No more tranmission or power output.
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What components should I start checking or replacing? Regards, Eduardo |
Re: Strong carrier on transmit.
#bitx40help
Dale Brooks KG7SSB
Hi Bob, the diode package you are talking about was substituted for the 2 diodes and pot with the thought that the packaged diodes were a very good match and the pot was not necessary. My BITX40 came the same way and I haven't had any issues with a strong carrier. I have built this circuit on a home brew rig and used two individual diodes and pot with better results than the BITX without the pot adjustment. But, you shouldn't be getting a strong signal on the output without audio. If you have a scope check the mic audio amp circuit and make sure that there is no oscillations with the mic disconnected. You can also check the input to the diode package legs(D20) and see that you are getting equal signal on both diodes. It's possible that one of the wires on the transformer is not making a good contact on the board. It will be a 12mhz signal from the carrier oscillator input.? I'm sure others will have more ideas and tests you can perform to isolate this problem. Good Luck and let us know what's happening. Dale kg7ssb On Sat, Feb 10, 2018 at 6:54 PM, <radioant@...> wrote: I set up my bitx40 for transmit and on key up I heard a strong carrier from the bitx40. The carrier was 20 over on monitor receiver.? No it wasn't feed back from the mic. I looked at the balanced modulator circuit on the board and discovered that D15 and D16 and the 100 ohm trim pot we're not in the circuit. But a dual diode D20 was there. Could someone explain this modification and if anyone else has had this problem. Will see if any DC is getting back into modulator.? Thank you Bob WB2TFG |
Re: Strong carrier on transmit.
#bitx40help
Vince Vielhaber
It was a change HF Signals made about a year ago and has worked fine. The dual diode is better balanced than you would get via the pot.
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Did you do any of the mods to the board, like perhaps the one that involves a 10K resistor to the area of the balanced modulator for CW? Vince. On 02/10/2018 08:54 PM, radioant@... wrote:
*I set up my bitx40 for transmit and on key up I heard a strong carrier --
Michigan VHF Corp. |
Strong carrier on transmit.
#bitx40help
I set up my bitx40 for transmit and on key up I heard a strong carrier from the bitx40. The carrier was 20 over on monitor receiver.? No it wasn't feed back from the mic. I looked at the balanced modulator circuit on the board and discovered that D15 and D16 and the 100 ohm trim pot we're not in the circuit. But a dual diode D20 was there. Could someone explain this modification and if anyone else has had this problem. Will see if any DC is getting back into modulator.? Thank you Bob WB2TFG
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Re: Dec 16 order of uBitx received Feb 10 via India Post
USA import Duty fees or non fees. ?Up to?$1,600?in goods will be duty-free under your personal exemption if the merchandise is from an IP. Up to?$800?in goods will be duty-free if it is from a CBI or Andean country. Any additional amount, up to $1,000, in goods will be dutiable at a flat rate (3%).May 31, 2017 On 10 Feb 2018 6:10 pm, "Chris Clarke" <csclarke@...> wrote: Hi George |
Re: Dec 16 order of uBitx received Feb 10 via India Post
chris gress
Yes in the UK they slap ?24 on it get no extra with India post and with them I have never lost an order touch wood chris G0WFH? On 11 Feb 2018 00:10, "Chris Clarke" <csclarke@...> wrote: Hi George |
Re: Dec 16 order of uBitx received Feb 10 via India Post
?Mine should be here Monday or Tuesday and I got absolutely no notices from PayPal. I only was able to follow with DHL tracking. ?I believe you have the Customs tax with DHL backwards. No cost in the United States but there is cost in Europe and that's why most Europeans are using India post. On 10 Feb 2018 6:10 pm, "Chris Clarke" <csclarke@...> wrote: Hi George |
Re: Dec 16 order of uBitx received Feb 10 via India Post
Hi George
I assume your PayPal notification is for the payment. PayPal will send another when HF Signals inform them the item has been shipped and that second message should mean it's on it's way. As you can see it took another 10 days to arrive here via India Post and Royal Mail with no further tracking once it was 'in the bag'. I got the Jan 24 message from HF Signals following an enquiry, so I might not have heard anything until the second PayPal message. However, as Chris Gress says, I think they have stock of Bitx40 and if so yours could be shipped quite soon. And arrive even sooner if you use DHL, but I get the impression if you are using DHL in NA they will slap a tax on you. Not sure if that happens UK so I didn't take the chance!! 73 Chris G3SQU |
Re: Second batch of uBITX shipping?
#ubitx
I also ordered mine on the 18th and mine is also sitting in Cincinnati for the last day. ?It is indicated that once it hits the USA it is USPS. Was supposed to deliver this last Friday so I figure maybe Tuesday here in Minnesota. On 10 Feb 2018 5:27 pm, "S. Porter" <srporter@...> wrote: ordered 18 December? |
Re: ubitx project
¿ªÔÆÌåÓý´¡²Ô»å°ù¨¦²õ
Really good, and I like your screen layout and features.? Are you going to open source your sketch so that others can make use of it? 73 Mike ZL1AXG On 11/02/18 7:10 AM, ´¡²Ô»å°ù¨¦²õ Moreno wrote:
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