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Search results

  1. Hawkeye351

    Resque a Galaxy Saturn ept360011b

    32w peak × 1.414 = 45.25w PEP My small MFJ 872 peak meter on my dummy load will read about 28w to 32w peak watts. But on my MFJ 868 True Peak Reading meter (PEP) will show around 40w to 46w PEP on the same dummy load setup. Neither meter has ever been opened at all, bought them new from MFJ...
  2. Hawkeye351

    Happy Thanksgiving...

    Happy Thanksgiving everyone on Worldwidedx, I hope you all have a peaceful and enjoyable thanksgiving this year. Please be safe in these troubled times and watch over one another. We all need each other now more than ever. God Bless you and the family. Hawkeye, 351, 592, KM4VAZ around the...
  3. Hawkeye351

    Galaxy Saturn weak SSB receive...

    This Saturn has truly gotten the best of me. Replaced D11, D15, D16, D24, D25, FL3, C31, C32, C43, C67, C89, C90, C95, C190, C193, C35, C40, C19, C20, C333, C133, TR12, TR14, TR22, TR20, TR21, TR17, TR18, TR52, TR49, L13, L14... Checked every component in the sideband chain (by following the...
  4. Hawkeye351

    Galaxy Saturn weak SSB receive...

    Replaced FL3, replaced TR12 and TR14, checked D70, D28, D25 and a few other diodes in the L13/L14 area. Still AM receive is better than SSB. I removed a 25pf NPO cap I had soldered on the outer 2 pins of L13 and now the sidebands don't run into each other as before. I also got the NB working...
  5. Hawkeye351

    Galaxy Saturn weak SSB receive...

    Outcome after switching C133 around the right way: Slightly better SSB receive. Realigned entire radio again after switching C133 around the right way: Slightly better than above. Swapped out TR22, still same high voltages, no difference in receive as from the above improvements. I did...
  6. Hawkeye351

    Galaxy Saturn weak SSB receive...

    None of these slugs are flush for a peak. All IF can slugs in this radio are all about 2 to 3 turns down from the top, thats where they peak. I think I found the issue though. C133 is in backwards. And according to the schematic, C133 will have an affect on L14, which in turn will affect TR22...
  7. Hawkeye351

    Galaxy Saturn weak SSB receive...

    After looking over schematic more on the routes of C133, yes it will affect SSB receive. From the looks of the schematic, it seems as though C133 is the AMC timing capacitor or some type of smoothing cap. Just curious as to how the radio modulated on transmit with this one in backwards, but it...
  8. Hawkeye351

    Galaxy Saturn weak SSB receive...

    Hmmm, that's not right, but I'm not sure if this would affect SSB receive. What I found is that C133 is in backwards. I verified with a parts layout pic, a 99V I have sitting aside waiting for me to install new lights, an 11B which is one of my personal radios, another Galaxy Saturn which is...
  9. Hawkeye351

    Galaxy Saturn weak SSB receive...

    This is the voltage chart I used. For a 99v, but basically the same board and layout.
  10. Hawkeye351

    Galaxy Saturn weak SSB receive...

    Did voltage checks again on the following transistors: TR12, TR14, TR19, TR20, TR21, TR22, TR30, TR31, TR52. All checked in LSB mode. The results are as follows: TR12 B - 0.65 C - 0 E - 0 TR14 B - 0.69 C - 0 E - 0 TR19 B - 1.67 C - 6.65 E - 0.03 Hmmm, emitter should be 0.80v, not 0.03v...
  11. Hawkeye351

    Galaxy Saturn weak SSB receive...

    Ok, done some proding around L13 and L14 with a small metal shaft screw driver with my finger touching the shaft of the screwdriver. The only spot that the receive on sideband improves to normal, is the unused pin (on the 3 pin side) and the outer pin (on the 2 pin side) of L13. Replaced C89...
  12. Hawkeye351

    Galaxy Saturn weak SSB receive...

    I see D84 in the same chain. I wonder if this diode could cause SSB receive volume to be weak but AM receive is great, and xmit in all modes to be fine. Not sure if this means anything, but AM xmit is around 30w peak and SSB xmit is around 22w to 25w (in that area). Nomad, I've been scouring...
  13. Hawkeye351

    Galaxy Saturn weak SSB receive...

    What's up guys.... Got another Saturn on the desk. Issues: Low transmit in all modes. Fixed, was the last final in the stage. Replaced, touched up bias and retuned output stage. Transmit now works great in all modes. Weak SSB receive in both LSB and USB. The AM receive is great. Realigned...
  14. Hawkeye351

    Lets logically end the LMR-400 debate.

    I run Digital Trends LMR400 on my base, original old antron (side mounted antron), no issues whatsoever. A friend of mine runs Digital Trends LMR400 on his base maco v5000 running around 2kw at all times, no issues whatsoever. He achieved a 2db increase in receive and transmit after changing...
  15. Hawkeye351

    2995DXCF backwards swing in avg.

    My God, I just heard the owner talking on this radio, omg that thang is loud and one heck of a signal. I am thoroughly impressed. My next radio is gonna be a 2995dxcf with my work done to it.
  16. Hawkeye351

    2995DXCF backwards swing in avg.

    Well, just spent the last 2 hours talking constantly on it, even getting long winded at times. Great reports. Reports from our local amp tech about 15 miles away: Sweet audio for a handmic. 45w key, sounds clean and comfortably loud. He said he's getting a solid 9 s-units with just a hair...
  17. Hawkeye351

    2995DXCF backwards swing in avg.

    This one doesn't have any bias adjustment on the amp board. I finally got it to swing forward in average a substantial amount. When I tried the C258 jump earlier, I placed it the same orientation as we do with the R238 resistor/diode combo on the ept3800 boards and 6900 boards. I had the...
  18. Hawkeye351

    2995DXCF backwards swing in avg.

    Well, I tried the C258 jump with a 100 ohm resistor and 1n4001 diode, banded end nearest the passthrough. Unbanded end soldered to 100 ohm resistor and the other end of that resistor soldered on the side of c258 nearest the power adjustment. Made it worse, it even hurt the peak swing. Before...
  19. Hawkeye351

    2995DXCF backwards swing in avg.

    Still have this 2995DXCF on the desk. After getting the volume issue resolved, I checked everything out on my equipment. I noticed it swings backwards regardless of power level setting. At a 45w deadkey, it swings backwards down to around 18w in average mode on the meter. At 5w deadkey it...
  20. Hawkeye351

    Galaxy Melaka weak AM receive, SSB fine

    I replaced TR52 and now AM receive is back right. Hmmm, never thought the SSB switch would affect AM receive, oh well, lesson learnt, lol... On to the next one, a classic, 148 GTL-F with RFX95HD added. Thanks guys for helping out, I appreciate any info ever passed my way.