Search:

Type: Posts; User: brandon lind

Page 1 of 9 1 2 3 4

Search: Search took 0.01 seconds.

  1. Replies
    2
    Views
    110

    My friend told me I should learn C#, php, and...

    My friend told me I should learn C#, php, and html in visual studio... i should have listened to him. If I had the knowledge, Id gladly help out on the forum. I once used excel to utilize photos and...
  2. Replies
    11
    Views
    248

    Mobile Radios The mic does work now, correct? 1106

    The mic does work now, correct?

    1106
  3. Replies
    1
    Views
    88

    Base Radios Do you mean it works out of band, but not in...

    Do you mean it works out of band, but not in band? That's really odd...
  4. Replies
    11
    Views
    248

    Mobile Radios I altered the picture you sent me in a photo...

    I altered the picture you sent me in a photo editor to show the proper wiring and emailed it back. I tried to post the picture here but I am out of storage space on this forum (hoping the admins can...
  5. Replies
    2
    Views
    110

    storage space

    Is there a way for the admins to allow a bit more attachment storage on this site? If we post a schematic, picture or other useful thing, our 4 or 5MB limit is rapidly consumed. This means we must...
  6. Replies
    11
    Views
    248

    Mobile Radios The problem with using wire colors and terms like...

    The problem with using wire colors and terms like that is that it creates the possibility for us to mislead you by accident. For example, audio could mean audio out or audio in, the radio's mic jack...
  7. Replies
    8
    Views
    1,982

    Base Radios If you have the FT-900AT, there could be an issue...

    If you have the FT-900AT, there could be an issue in the tuner section assuming the tuner is turned on. If not, the last thing would likely be the TR relay (RL5014) or the coax to the ANT port. If...
  8. Replies
    11
    Views
    248

    Mobile Radios 16v should be fine

    16v should be fine
  9. Replies
    11
    Views
    248

    Mobile Radios K7MEM, good catch on the capacitor value! I...

    K7MEM, good catch on the capacitor value! I grabbed the value from the circuit diagram of the HM12 in the service manual which is clearly not correct. At 200Hz, that's about 1700ohms reactance, far...
  10. Replies
    11
    Views
    248

    Mobile Radios Looking at the diagram it would appear that a...

    Looking at the diagram it would appear that a standard spst momentary switch between pin 5 and 6 (6 being ground) would activate TX. The mic utilizes pins 1 and 7 (7 being shield, 1 being audio). It...
  11. Thread: NanoVNA

    by brandon lind
    Replies
    2
    Views
    313

    I ordered the nanoVNA-F for $126. One issue is...

    I ordered the nanoVNA-F for $126. One issue is that it said it ships from the usa. The tracking said its shipping with DHL but the tracking number is not recognized by the DHL website. The tracking...
  12. Replies
    3
    Views
    262

    Base Radios I think K7KBN's suggestion will prove the radio...

    I think K7KBN's suggestion will prove the radio is just fine. A quick look online shows that is a 200w radio with split finals having separate power supplies and that the radio requires 41A of...
  13. Good to know! I used a fishing line, bobber and...

    Good to know! I used a fishing line, bobber and sinker to to check our well by feeling when the bobber took on the weight of the sinker.

    At least this emissivity thing can be readily corrected...
  14. Thank you! I missed emissivity day in school!...

    Thank you!

    I missed emissivity day in school! New plan... I am going to buy various rolls of black tape and see which one is closest to E=0.95 (what this IR is calibrated to) so I can just toss a...
  15. Non-radio electromagnetic radiation question and some deep thinking.

    Prepare yourselves for what might be a totally dumb question! I am posting this non-radio question because it is electromagnetically involved, and although it has nothing to do with radio...
  16. Replies
    8
    Views
    480

    Thank you! I will read that right now....

    Thank you!

    I will read that right now. Waiting for my better half at the clinic so thats perfect timing!

    Edit: wow! Thats super cool. It brought a few things to my attention i never once...
  17. Replies
    8
    Views
    480

    Just ordered the nanoVNA-F, hope the reviews were...

    Just ordered the nanoVNA-F, hope the reviews were not paid :) although I suspect a 1GHz device should be fairly accurate at HF and VHF.
    I will share the results as soon as I learn the device and get...
  18. Replies
    8
    Views
    480

    Ive read so many times on forums etc that its the...

    Ive read so many times on forums etc that its the inductance that chokes the signal. More inductance=more inductive reactance, right? And that would mean a better choke (especially as frequency goes...
  19. Thread: NanoVNA

    by brandon lind
    Replies
    2
    Views
    313

    NanoVNA

    Has anyone used the nanoVNA's being sold on amazon? I know there is a large variation of essentially the same device. Some have cases, some have RF shielding, some have more accessories... What Im...
  20. Replies
    2
    Views
    264

    I think the bigger challenge will be finding one...

    I think the bigger challenge will be finding one with that crazy of bandwidth. Its one thing to use it for RX, but if you intend to transmit on that wide a range of frequencies in both bands...
  21. Replies
    1
    Views
    254

    That radio (upon a few searches) seems to have a...

    That radio (upon a few searches) seems to have a history of display problems. It looks like the common culprit among these display problems are bad electrolytic capacitors and burnt (or sometimes...
  22. Replies
    3
    Views
    277

    Mobile Radios If narrowband works, the wideband problem is in...

    If narrowband works, the wideband problem is in either the wideband crystal filter itself, the switching diodes (D302 and D303) that switch the RF between the two filters, or something on a digital...
  23. Replies
    3
    Views
    277

    Mobile Radios I would guess that someone keyed up with lots of...

    I would guess that someone keyed up with lots of power way too close to your radio and it gave your crystal filter a major headache. Try replacing the wideband crystal filter. It is labeled CF301...
  24. Replies
    1
    Views
    261

    I would check the band switch contacts. It might...

    I would check the band switch contacts. It might also be worth inspecting the filter unit.
  25. Replies
    3
    Views
    369

    I know nothing about the ts440, but if its...

    I know nothing about the ts440, but if its anything like my ts130s, well....

    My ts-130s was modified by the original owner to go on 11m. The mod involved toggling the levels on the PLL divider....
Results 1 to 25 of 213
Page 1 of 9 1 2 3 4