Re: Bitx40 #861 arrived
Dear Farhan and all the Bitx40 team,
Bitx40 #861 arrived this morning, hand delivered to my front door.
The Bitx40 is beautifully packed.
I will let you know how the testing and integration
By
vk1xp
·
#18738
·
|
Re: Bitx 40 Problem
I have another, just arrived, Bitx 40. Hooked it up and works as it should, at least for receive.
#67, the first, cannot hear a signal generator putting out 0 dBm signal. Running it on a 12 volt
By
Bill Robbins <wrobbins@...>
·
#18739
·
|
PA Transformers for Bitx40
The photo on 'hfsigs' shows PA Transformers for Bitx40 made from toroid cores, but the schematics shows some 6 terminal TV balun binocular or something else - I do not know.
Could Farhan or someone
By
rjinspace
·
#18737
·
|
Re: Ebay Store Kits Out Of Stock?
I have a BITX 20m v.3 PA PCB from the ebay shop of Sunil VU3SUA. It has two
amplifier stages and two transformers. The description says it can be
modified for 40m. But it does not say how.
How many
By
rjinspace
·
#18736
·
|
Re: Bitx 40 Problem
Do you have a nice strong power source? Like all high-gain LM386 circuits, the audio amp is prone to becoming an oscillator when starved of sufficient power.
Best,
Jeff
KK9JEF
Sent from my iPhone
By
Jeff Glass <kg6sgx@...>
·
#18735
·
|
Re: Bitx 40 Problem
You may also be able to drape it over the antenna connector. Try that first
without the antenna connected.
73 Ken
[BITX20] <BITX20@...> wrote:
By
Ken
·
#18734
·
|
Re: Bitx 40 Problem
Yes I have one.
Sent from my iPhone
By
Bill Robbins <wrobbins@...>
·
#18733
·
|
Re: MY BITX40 arrived - thanks!
try
http://www.hfsigs.com/
73 Ken
BITX20@...> wrote:
By
Ken
·
#18732
·
|
Re: Bitx 40 Problem
Let's rule out the antenna. Do you have a signal source to fed to the
antenna input? It has to be very low strenghth around 50 uvolts (S9). If
you feed too strong a signal, you may overload the front
By
Ken
·
#18731
·
|
Re: Bitx 40 Problem
Ken:
Thanks. That's the first thing I did having followed this group. I did spread a few out a little but no help.
Bill
Sent from my iPhone
By
Bill Robbins <wrobbins@...>
·
#18730
·
|
#952 has arrived
Hi #952 has arrived safe and sound to the UK in 6 days, very speedy and well packaged.
I have nearly finished the home brew Si5351 VFO / BFO so I will be able to power it up soon.
73 Karl
G7AFT
By
Karl Brazier
·
#18729
·
|
Re: Bitx 40 Problem
Hi Bill
Start by checking that the toroid leads are not shorting together. You can
use a toothpick to gentle spread them apart.
73
Ken VA3ABN
BITX20@...> wrote:
By
Ken
·
#18728
·
|
Bitx 40 Problem
I decided that you guys are having so much fun that I took out #67 to give it a whirl.
When powering up I get a very loud buzzing in the ear phones. So, I power down, remove all external
By
Bill Robbins
·
#18727
·
|
Re: Bitx 40 board.
I used the RED wire. I think. . . .
BITX20@...> wrote:
By
Baruch Atta <baruchatta@...>
·
#18726
·
|
Re: Ebay Store Kits Out Of Stock?
Our new batch of Bitx version 3B 3C kits,shall be available by the end of this week on our Ebay Store. We start with 20mt kits followed by the Bitx Version 3B 3C 40mt kits too.
Thanks for your
By
Sunil Lakhani
·
#18725
·
|
Re: BITX 40 - DDS right connection
Thanks, It is a good solution.
73.
By
Giuseppe Callipo
·
#18724
·
|
BitX40 #646 Has Arrived!
Well, technically it arrived Friday, but I wasn't able to go to the post office to pick it up until this morning. That is going to be so much fun when I get time to put it together, get an antenna
By
BLPisani@...
·
#18723
·
|
Re: Bitx 40 board.
Did you add it to the red wire or black wire?
By
KC8WBK
·
#18722
·
|
Re: BITX 40 - DDS right connection
The VFO we built for the Forty-9er (March, 2016, QST or see:?DDS VFO Kits)?has buffered output if needed. Two sets of header pins?
|
| |
DDS VFO Kits
| |
|
allow the user to pick off
By
Jack Purdum <econjack@...>
·
#18721
·
|
Re: FCC Rules of Operation
I was curious when this would come up. I'm sure the quality of the products
are good, but I'm not sure how this could be checked without a spectrum
analyser etc.
Im pretty sure the FCC really isn't
By
Christopher Miller
·
#18720
·
|