Рет қаралды 4,770
140.000 MHz 4.24 dB -- 302.000 MHz 3.34 dB. We are going to install two 15nH Murata coils & two BFU550AR low noise transistors. Optionally, or in addition, we are going to spread 3 coils. This is NOT an original SATCOM Mod., this is an improved SATCOM Mod. by SergeyPRS_v2, link to Sergey's original post regarding this Mod. is down bellow.
Additionally, to your delight, we are going to do this simple Mod. using solder iron, so that you can do it yourself at home. So sit back, pop a cold one, and give me 20 minutes and I will explain and show you everything! Don't forget to like, subscribe, and hit the bell icon!
Response graph, between antenna & transistor -- ibb.co/bPn48J6
Mod itself -- ibb.co/7Q1st9Y
Parts list is at the bottom
Table of Contents
----------------------------
0:00 - Intro
1:32 - Parts, tools, etc
6:06 - Desolder & Clean
13:14 - Install parts
19:35 - EZ
20:48 - Clean up
22:34 - Test
23:23 - Spread
26:47 - Done
Tools & Supplies
---------------------------
You need these around your house here and there sometimes, it's a one time buy, will last you for years and years, and up your abilities considerably.
If any of these links are broken, let me know in the comments.
These you buy locally,
1. LOW MELT SOLDER (or Rose's Metal), ask for chemical composition
2. 63/37 solder, for example Mechanic TY-V866, I used 0.6mm
3. Solder wick, GOOD WICK or Mechanic, I used 3mm wide CP-3015
4. Flux, for example Mechanic UV559
5. Flux off, or Benzin or Nefras-M C2-80/120
6. Optionally, small cheap solder iron
These you buy on aliexpress,
#1
Good solder iron, option 1 -- aliexpress.com/item/100500602...
Good solder iron, option 2 -- aliexpress.com/item/100500401...
(option 1 has tips like I use, for bigger electronics, option 2 has micro tips for really small stuff)
#2
Jeweler's Mask -- aliexpress.com/item/100500667...
Triplet -- aliexpress.com/item/100500589...
My Microscope -- aliexpress.com/item/100500473...
#3
Tweezers -- aliexpress.com/item/100500483...
#4
Optionally,
Cheap soldering station -- aliexpress.com/item/100500629...
Parts List
----------------
Murata Coils 0805 15nH -- aliexpress.com/item/100500683...
BFU550AR low noise transistors -- aliexpress.com/item/100500606...
Useful Links
--------------------
Quansheng UV-K5 Telegram Channel -- t.me/uv_k5
Quansheng UV-K5 Spectrum Talk -- t.me/uvk5_spectrum_talk
Quansheng UV-K5 4PDA Forum -- 4pda.to/forum/index.php?showt...
SergeyPRS_v2's original post on this mod -- t.me/uv_k5/84279/150853
#uvk5 #quansheng #satcom #quanshenguvk5 #hamradio #codernov