Garmin Alpha, Astro - fix problems + best modifications

02/09/2026

Hi, ALL.
We maintaine the repair of these Garmin devices:
Astro 320, -430, Alpha-50, -100.
Collars: DC-40, DC-50, T5(-x,-mini), TT15(-x,-mini).
100% spare parts at stock.
Any problem, any malfunction. We fix it.
! Working range incteasing (1,3 - 2,3 times with hunting antennas and 3 - 5 times with searching antennas).
………… ALSO ………..
We buy this used / broken Garmin:
(without chargers)
DC-40. $80 - $50 / $20 - $10
DC-50. $140 - $70 / $35 - $20

T5. $170 - $80 / $40 - 25
T5X. $200 - $140 / 100 - 80
TT15. $190 - $120 / $45 - 30.
TT15X. $210 - $150 / $110 - 90.
T5mini. $150 - $75 / $45 - 30
TT15mini. $180-$90/ $50- 30

Wall AC / car adapter / Clip - 12$
($4-each).

… detailed info -

02/06/2026

Garmin Astro/Alpha Old Models Repair and Boost Service.
All kinds of malfunctions.
http://ants4us.com/garmin/

PHILA. 19006.
+1 267-412-7225 whatsapp, telegram.

Design and manufacture of antennas and amplifiers for long distance communication and mobile internet. Long distance reception of TV and broadcasting Radio.

01/20/2026

4 USA Garmin Astro and Alpha costumers.
We offer repair services for older Garmin devices with a 6-month warranty.

Garmin has discontinued support for older models, offering new ones instead.

But the new T20 and TT25 models have a weak casing and a partially unresolved problem with the GPS cable.

We offer completely new ways to solve problems with your equipment!

1. Dry, rot, tear gps strap at your DC-50, T5, TT15 collars ……

It will never be a problem, if we move GPS inside. After this - High reliability and ease of repair allow these devices to operate almost indefinitely.

2. Lack of distance for some users ……

Unlike the large number of poorly understood Chinese-made antennas,
Our (R&D) company produces special UrAn (Ultra Range) antennas, which can significantly improve this devices performance. We garantee 150, 200, 250% distance for hunting antennas and 300 - 700% for seach/recovery antennas. All our products ware heavily tested and approved by our users in Russia (since 2014).

This group was created to show users how things could be better.

03/12/2025

1. Ultra Range Antennas - +50….370% range (up to 22 miles and more)!
2. RF LNA - +50% range, aspeshialy for low sensitivity Alpha 200/300.
3. Eradicate GPS band - long live to DC-50, T5, TT15.
4. Repair and trade-in old models.
5. We are buying old and broken models.
- ALL INFORMATION AT OUR WEBSITE -
ants4us.com. (267) 412-7225.
Andy Ust.

03/12/2025

The weakest link in Garmin collars DC50, T5, TT15, T20, TT25 is - GPS module rubber band (with coax inside). It often breaks down due to various stresses.
The best way to fix it - is to eradicate
this rubber band. After this, collar will work right as long, as body shell is intact.
I can do it for 90$.
Also i can fix almost any malfunction in your Garmin device (50-150$).
If you are interesting in, pm or WhatsApp, or sms me.

03/11/2025

R&D in microelectronics - since 1975.
Refrigeration electrician - 1979-1987.
TV, audio, video service workshop owner & SEO - 1993-1998.
1995 - till now: antennas, antennas, antennas … (for TV, mobile internet, HAM Radio, Professional equipment).
2016 - start R&D UrAn - UltraRange Antennas.
2018 - start repairing Garmin devices.
~~~~~~~~~~~~~~~~~~~~~~~~~~~~
The first thing i want to present is
Titanium antenna “Bark AT57” for collars DC-50, T5, T10, TT15, T20, TT25.
This antenna add 20-30% distance (in comparition with Garmin 22” VHF antenna).
Also it is very light and stand straight.
Start price - 19$.
PM me if interesting.

03/10/2025

03/10/2025

Привет мир.
Эта страница призвана познакомить пользователей Гармин Альфа /Астро в США - с нашими авторскими разработками:
1. Кратное увеличения дальности работы (2-3 раза и более - до 600%!!)!
2. Кратное увеличение срока службы ошейников: DC-50, T5, TT15 (за счёт удаления «слабого звена» - шлейфа GPS.
3. Почти любой компонентный ремонт ошейников DC-40, T5, TT15