Noob in need of some assistance.

[email protected] All Messages By This Member #25479 So I am in need of a little assistance. I'm near Portland Oregon. I got my bitx40 v3 (c) kit. And assembled it. I don't seem to receive anything. I have an antenna and a semi clean psu. It seems to tune and volume seems to work. Nothing seems to come through. :-( just alot of static? Anybody in the area that might be willing to hop of a specific freq at a specific time and ramble a bit so I can know if I'm just doing something silly? Lol listening to static all day is no fun :-( Don't have my licence yet so I wasn't going to hook up the mic, PA or ptt. A quick look at the schematic didn't seem to show any of those three required to receive. ?I'm feeding it 12.1vdc and limiting the psu to 0.250 amps (current draw is about 0.172 amps) do those figures sound correct? Or Atleast in an acceptable range? Is it normal behaviour for the tuner to have to catch up towards the limits of the tuning pot? Tried replacing said pot with a bourns 10 turn 100k pot and a 10 turn 10k pot. Same issue small tuning change then I hit the limit of the pot then it tunes rapidly without touching it till it hits Max freq. Test gear on hand is a korad psu, fluke 289 dmm, mhs5200a sig gen, and a siglent ?sds1102 oscope?
College Professor Simon Thompson #25480 开云体育 Hi? I am on 7.145 right now and I am listening to a station from San Diego with a giant signal. I can get on another frequency and give you a call! toggle quoted message Show quoted text On Apr 23, 2017, at 8:49 PM, stronggeek30s@... wrote: So I am in need of a little assistance. I'm near Portland Oregon. I got my bitx40 v3 (c) kit. And assembled it. I don't seem to receive anything. I have an antenna and a semi clean psu. It seems to tune and volume seems to work. Nothing seems to come through. :-( just alot of static? Anybody in the area that might be willing to hop of a specific freq at a specific time and ramble a bit so I can know if I'm just doing something silly? Lol listening to static all day is no fun :-( Don't have my licence yet so I wasn't going to hook up the mic, PA or ptt. A quick look at the schematic didn't seem to show any of those three required to receive. ?I'm feeding it 12.1vdc and limiting the psu to 0.250 amps (current draw is about 0.172 amps) do those figures sound correct? Or Atleast in an acceptable range? Is it normal behaviour for the tuner to have to catch up towards the limits of the tuning pot? Tried replacing said pot with a bourns 10 turn 100k pot and a 10 turn 10k pot. Same issue small tuning change then I hit the limit of the pot then it tunes rapidly without touching it till it hits Max freq. Test gear on hand is a korad psu, fluke 289 dmm, mhs5200a sig gen, and a siglent ?sds1102 oscope?
College Professor Simon Thompson #25481 开云体育 I think he has a Yagi so if you can’t hear him it’s no big deal; I can still call you if you want to tune to a clear frequency. My call is VE7SXS. toggle quoted message Show quoted text On Apr 23, 2017, at 8:49 PM, stronggeek30s@... wrote: So I am in need of a little assistance. I'm near Portland Oregon. I got my bitx40 v3 (c) kit. And assembled it. I don't seem to receive anything. I have an antenna and a semi clean psu. It seems to tune and volume seems to work. Nothing seems to come through. :-( just alot of static? Anybody in the area that might be willing to hop of a specific freq at a specific time and ramble a bit so I can know if I'm just doing something silly? Lol listening to static all day is no fun :-( Don't have my licence yet so I wasn't going to hook up the mic, PA or ptt. A quick look at the schematic didn't seem to show any of those three required to receive. ?I'm feeding it 12.1vdc and limiting the psu to 0.250 amps (current draw is about 0.172 amps) do those figures sound correct? Or Atleast in an acceptable range? Is it normal behaviour for the tuner to have to catch up towards the limits of the tuning pot? Tried replacing said pot with a bourns 10 turn 100k pot and a 10 turn 10k pot. Same issue small tuning change then I hit the limit of the pot then it tunes rapidly without touching it till it hits Max freq. Test gear on hand is a korad psu, fluke 289 dmm, mhs5200a sig gen, and a siglent ?sds1102 oscope?
College Professor Simon Thompson #25482 开云体育 I moved down to 7.1420, and that is currently clear. I will give you a shout with my call. toggle quoted message Show quoted text On Apr 23, 2017, at 8:57 PM, College Professor Simon Thompson <nwccenglishprofessor@...> wrote: I think he has a Yagi so if you can’t hear him it’s no big deal; I can still call you if you want to tune to a clear frequency. My call is VE7SXS. On Apr 23, 2017, at 8:49 PM,?stronggeek30s@...?wrote: So I am in need of a little assistance. I'm near Portland Oregon. I got my bitx40 v3 (c) kit. And assembled it. I don't seem to receive anything. I have an antenna and a semi clean psu. It seems to tune and volume seems to work. Nothing seems to come through. :-( just alot of static? Anybody in the area that might be willing to hop of a specific freq at a specific time and ramble a bit so I can know if I'm just doing something silly? Lol listening to static all day is no fun :-( Don't have my licence yet so I wasn't going to hook up the mic, PA or ptt. A quick look at the schematic didn't seem to show any of those three required to receive. ?I'm feeding it 12.1vdc and limiting the psu to 0.250 amps (current draw is about 0.172 amps) do those figures sound correct? Or Atleast in an acceptable range? Is it normal behaviour for the tuner to have to catch up towards the limits of the tuning pot? Tried replacing said pot with a bourns 10 turn 100k pot and a 10 turn 10k pot. Same issue small tuning change then I hit the limit of the pot then it tunes rapidly without touching it till it hits Max freq. Test gear on hand is a korad psu, fluke 289 dmm, mhs5200a sig gen, and a siglent ?sds1102 oscope?
[email protected] All Messages By This Member #25484 Why thank you :-) I tuned to 7.1450 mhz. And no joy :-(?
College Professor Simon Thompson #25485 开云体育 I will try that anyway. toggle quoted message Show quoted text On Apr 23, 2017, at 8:59 PM, stronggeek30s@... wrote: Why thank you :-) I tuned to 7.1450 mhz. And no joy :-(?
[email protected] All Messages By This Member #25486 Just tuned to 7.1420 mhz?
College Professor Simon Thompson #25487 开云体育 I will try that. toggle quoted message Show quoted text On Apr 23, 2017, at 9:02 PM, College Professor Simon Thompson <nwccenglishprofessor@...> wrote: I will try that anyway. On Apr 23, 2017, at 8:59 PM, stronggeek30s@... wrote: Why thank you :-) I tuned to 7.1450 mhz. And no joy :-(?
[email protected] All Messages By This Member #25488 Can't really call though :-( only listen until I pass that persnikity test and the doc says I can lol
College Professor Simon Thompson #25489 开云体育 Well, keep listening. I will give another call on 7.142. toggle quoted message Show quoted text On Apr 23, 2017, at 9:06 PM, stronggeek30s@... wrote: Can't really call though :-( only listen until I pass that persnikity test and the doc says I can lol
College Professor Simon Thompson #25490 开云体育 Can you tune up to see if you can receive a BC station? There is a God-botherer station at 7.385 that is very strong right now. toggle quoted message Show quoted text On Apr 23, 2017, at 9:09 PM, College Professor Simon Thompson <nwccenglishprofessor@...> wrote: Well, keep listening. I will give another call on 7.142. On Apr 23, 2017, at 9:06 PM, stronggeek30s@... wrote: Can't really call though :-( only listen until I pass that persnikity test and the doc says I can lol
[email protected] All Messages By This Member #25492 Still no luck. Just static. I suppose I am going to have to dig in and probe around. Thank you for your time and assistance. It is much appreciated. ?
vk1xp All Messages By This Member #25493 Hi, You can hear static. OK You got the sig gen ?? Hang a piece of wire off the output of your sig gen, then drape it near to your Bitx. Then set the sig gen to (say) 7.10MHz and tune around with your Bitx and see if you can hear the sig gen. If nothing heard then tune around with the sig gen (leave your Bitx set on mid band) and see where your Bitx is listening. Good luck, Peter VK1XP toggle quoted message Show quoted text On 24-04-2017 13:49, stronggeek30s@... wrote: So I am in need of a little assistance. I'm near Portland Oregon. I got my bitx40 v3 (c) kit. And assembled it. I don't seem to receive anything. I have an antenna and a semi clean psu. It seems to tune and volume seems to work. Nothing seems to come through. :-( just alot of static Anybody in the area that might be willing to hop of a specific freq at a specific time and ramble a bit so I can know if I'm just doing something silly? Lol listening to static all day is no fun :-( Don't have my licence yet so I wasn't going to hook up the mic, PA or ptt. A quick look at the schematic didn't seem to show any of those three required to receive. I'm feeding it 12.1vdc and limiting the psu to 0.250 amps (current draw is about 0.172 amps) do those figures sound correct? Or Atleast in an acceptable range? Is it normal behaviour for the tuner to have to catch up towards the limits of the tuning pot? Tried replacing said pot with a bourns 10 turn 100k pot and a 10 turn 10k pot. Same issue small tuning change then I hit the limit of the pot then it tunes rapidly without touching it till it hits Max freq. Test gear on hand is a korad psu, fluke 289 dmm, mhs5200a sig gen, and a siglent sds1102 oscope Links: ------ [1] /g/BITX20/message/25479 [2] /mt/4963903?uid=236039 [3] /g/BITX20/post [4] /g/BITX20/editsub?uid=236039 [5] /g/BITX20 [6] /static/tos [7] /g/BITX20/leave/defanged
[email protected] All Messages By This Member #25495 I tried that earlier. ?The static just gets louder at that freq. ?Shouldn't I hear static disappear?
vk1xp All Messages By This Member #25506 What happens when you tune your sig gen thru the IF frequency ? Do you get any response from your Bitx ?? Peter NB: see earlier post for test set-up. toggle quoted message Show quoted text On 24-04-2017 14:45, stronggeek30s@... wrote: I tried that earlier. The static just gets louder at that freq. Shouldn't I hear static disappear? Links: ------ [1] /g/BITX20/message/25495 [2] /mt/4963903?uid=236039 [3] /g/BITX20/post [4] /g/BITX20/editsub?uid=236039 [5] /g/BITX20 [6] /static/tos [7] /g/BITX20/leave/defanged
Jack Purdum #25515 I wonder if he's calibrated his frequency? Jack, W8TEE toggle quoted message Show quoted text From: College Professor Simon Thompson <nwccenglishprofessor@...> To: [email protected] Sent: Monday, April 24, 2017 12:13 AM Subject: Re: [BITX20] Noob in need of some assistance. Can you tune up to see if you can receive a BC station? There is a God-botherer station at 7.385 that is very strong right now. On Apr 23, 2017, at 9:09 PM, College Professor Simon Thompson <nwccenglishprofessor@...> wrote: Well, keep listening. I will give another call on 7.142. On Apr 23, 2017, at 9:06 PM, stronggeek30s@... wrote: Can't really call though :-( only listen until I pass that persnikity test and the doc says I can lol
Craig Thibodeaux Member Profile All Messages By This Member #25534 开云体育 Do you have a switching power supply hooked up? ?I tried one and it sounds just like what you describe. Hook up to a battery, sure you have one if you have a car. Since this was my first HF radio, I didn’t even think about the switcher. I couldn’t hear anything either the first night I assembled, except for a few CW stations, but I could tell the voice stations were in all that mess. Then switched to a battery, made first contact locally the next day, I am in East TN. ? I listened to a pileup to Michael in Crete last night for over an hour. ?I am using a inverted V dipole hooked to a length of 35 year old RG8, BitX is everything stock (at this point). My antenna is just off the ground at about 5 feet, with peak about 14 feet, and raised under a metal frame, antenna wire is galvanized fence wire….nothing optimum, just junk on hand, thrown up in a hurry, no meter checks. ?It sounded like Mike was sitting in my ear, and I heard both sides of most Qso’s. ?I think the receiver is working. All that said, hooked up to a switch mode power supply, sounds like what you are describing. Just thought I would throw this out there, incase you did the same thing I did. Craig KM4YEC toggle quoted message Show quoted text On Apr 24, 2017, at 9:58 AM, Jack Purdum via Groups.Io <econjack@...> wrote: I wonder if he's calibrated his frequency? Jack, W8TEE From:?College Professor Simon Thompson <nwccenglishprofessor@...> To:?[email protected]? Sent:?Monday, April 24, 2017 12:13 AM Subject:?Re: [BITX20] Noob in need of some assistance. Can you tune up to see if you can receive a BC station? There is a God-botherer station at 7.385 that is very strong right now. On Apr 23, 2017, at 9:09 PM, College Professor Simon Thompson <nwccenglishprofessor@...> wrote: Well, keep listening. I will give another call on 7.142. On Apr 23, 2017, at 9:06 PM,?stronggeek30s@...?wrote: Can't really call though :-( only listen until I pass that persnikity test and the doc says I can lol
Nemo All Messages By This Member #25558 I would not use a switch mode PSU on this unit. Most of the create a lot of unwonted noise and need a lot of filtering to get ride of it. I would just use a simple one with a good regulator. I use a LM 317 and set the output to 13.5 volts. But I would also put a small heat sink on the device as it will get warm on transmit. Use a transformer with an output voltage of no more that 15 volts at 2 amps. That will be fine for you. You can find many schematics on the interweb so just make one.?
[email protected] All Messages By This Member #25559 I have indeed gone through the calibration procedure.
[email protected] All Messages By This Member #25560 negative my psu is a nice linear (but cheap) korad unit. I also did try a 3 18650 li-on batteries... ?

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