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Hobbies Amateur Radio User V2 !, HAM Radio

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aminpro
post Nov 26 2017, 02:41 AM

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QUOTE(thenuts15 @ Nov 24 2017, 03:29 PM)
Was wondering any different btw a base and a mobile antenna?
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Base antenna has more sturdy and robust construction. Essentially they work the same.
However, not all antenna are created equal. There are high gain antennas as well etc.
thenuts15
post Nov 26 2017, 07:16 PM

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After a long read at multisite,i think i will get a shorter antena which is BC100.
Cant find much review about it.Anybody have feedback on it?
I cant seem to find video on its intallation.Does it still need to be cut?
wiraone
post Nov 28 2017, 06:28 PM

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QUOTE(thenuts15 @ Nov 26 2017, 07:16 PM)
After a long read at multisite,i think i will get a shorter antena which is BC100.
Cant find much review about it.Anybody have feedback on it?
I cant seem to find video on its intallation.Does it still need to be cut?
*
No idea really, I bought X500, installed it 10 years ago and done with it. It still working great up there on the roof smile.gif No idea about BC100.

You may want to look at this monobander antenna, made in Indonesia.

http://www.9m2rol.com/a/gazden-antenna-7db-for-144mhz-2m

This post has been edited by wiraone: Nov 28 2017, 06:32 PM
aminpro
post Dec 4 2017, 05:04 AM

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Made my own slim jim antenna out of 1/2" copper tubes.

UHF band tuned to 440MHz center. After tuning I got literally 1 SWR but after fixing the solder for got 1.3 -1.5 SWR as the best across 420 - 470MHz

Tuning this thing is quite a pain because it is pretty sensitive :/

Anyway, here are my measurments:

CODE
             
             1cm
             ___
            |     |
            |     | 32 cm
48.8cm      |     |
            |
            |___ |16cm



I used the copper L shaped connectors.

user posted image

Pictures ahead

» Click to show Spoiler - click again to hide... «


Anyway, the antenna performs great! I can listen to what I could never before at my place. Too bad my Mototrbo Mobile Rig is damaged on the Tx part so I could not really test the Tx performance.

This post has been edited by aminpro: Dec 4 2017, 05:16 AM
sheknow9
post Dec 4 2017, 09:52 AM

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QUOTE(wiraone @ Nov 28 2017, 06:28 PM)
No idea really, I bought X500, installed it 10 years ago and done with it. It still working great up there on the roof smile.gif No idea about BC100.

You may want to look at this monobander antenna, made in Indonesia.

http://www.9m2rol.com/a/gazden-antenna-7db-for-144mhz-2m
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hmmm, i thought the gazden antenna is dual band.
wiraone
post Dec 4 2017, 10:21 AM

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QUOTE(sheknow9 @ Dec 4 2017, 09:52 AM)
hmmm, i thought the gazden antenna is dual band.
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I have never use or own it, so I don't know. According to the page, it is VHF single band antenna.
eddie_lim
post Dec 13 2017, 10:44 PM

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QUOTE(mengsuan @ Nov 24 2017, 03:05 PM)
Looking for someone to QSO this weekend. Haha
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I think u need to mark a calendar biggrin.gif
akihito
post Dec 28 2017, 07:14 PM

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hola, anymore amateur radio operator on DMR here?
aminpro
post Dec 29 2017, 02:44 AM

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QUOTE(akihito @ Dec 28 2017, 07:14 PM)
hola, anymore amateur radio operator on DMR here?
*
One here
Currently just using MMDVM
eddie_lim
post Dec 30 2017, 12:38 PM

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QUOTE(akihito @ Dec 28 2017, 07:14 PM)
hola, anymore amateur radio operator on DMR here?
*
Let's heat up the DMR and digital on freq UHF tongue.gif
there is no DMR repeater currently but most of us connected in MMDVM hotspot on TG5021 or TG50210 which also link to Yaesu wires-X and YSF

come come ... rclxm9.gif
eddie_lim
post Dec 30 2017, 01:52 PM

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Anyone know how to build this?

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wiraone
post Dec 30 2017, 02:07 PM

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QUOTE(akihito @ Dec 28 2017, 07:14 PM)
hola, anymore amateur radio operator on DMR here?
*
You can find most of us who're active on DMR's BrandMeister network especially in TG5021 or TG50210. And yes, mostly we're using hotspot (MMDVM_HS). Come join us smile.gif TG50210 is also connected to Wires-X room Malaysia-Net (20460) where we've two other repeaters connected to it. One in KL and the other in Melaka.
wiraone
post Dec 30 2017, 02:11 PM

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QUOTE(eddie_lim @ Dec 30 2017, 01:52 PM)
Anyone know how to build this?

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Tried to build one before for RTTY interface but failed, haha. Most probably my opto-isolator chip went bad or my soldering skill not good enough. smile.gif

eddie_lim
post Dec 30 2017, 03:14 PM

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QUOTE(wiraone @ Dec 30 2017, 02:11 PM)
Tried to build one before for RTTY interface but failed, haha. Most probably my opto-isolator chip went bad or my soldering skill not good enough. smile.gif
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I was going to buy the thing on ebay, but shipping is more expensive than the unit
see how now nearby my place got one electronic shop where i can buy some component solder myself with breadboard first... see how la

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Above is the schematic i am planning to do... need a usb-to-serial too for ptt bangwall.gif

This post has been edited by eddie_lim: Dec 30 2017, 03:16 PM
wiraone
post Dec 30 2017, 04:22 PM

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QUOTE(eddie_lim @ Dec 30 2017, 03:14 PM)
I was going to buy the thing on ebay, but shipping is more expensive than the unit
see how now nearby my place got one electronic shop where i can buy some component solder myself with breadboard first... see how la
My TS590SG radio doesn't need any interface, just plug in USB cable can do digital already smile.gif I believe many newer radios have build-in digital capability now, no more interfaces needed, just USB.
akihito
post Dec 30 2017, 06:49 PM

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QUOTE(wiraone @ Dec 30 2017, 02:07 PM)
You can find most of us who're active on DMR's BrandMeister network especially  in TG5021 or TG50210. And yes, mostly we're using hotspot (MMDVM_HS). Come join us smile.gif TG50210 is also connected to Wires-X room Malaysia-Net (20460) where we've two other repeaters connected to it. One in KL and the other in Melaka.
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i know that laugh.gif
penang infra still in testing phase, trying to group up DMR users here.... so far im the only one on DMR
wiraone
post Dec 30 2017, 07:05 PM

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QUOTE(akihito @ Dec 30 2017, 06:49 PM)
i know that laugh.gif
penang infra still in testing phase, trying to group up DMR users here.... so far im the only one on DMR
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ADOIIIII!! Aku sudah terkena! Damn you! hahaa.

This post has been edited by wiraone: Dec 30 2017, 07:08 PM
akihito
post Dec 30 2017, 09:41 PM

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QUOTE(wiraone @ Dec 30 2017, 07:05 PM)
ADOIIIII!! Aku sudah terkena! Damn you! hahaa.
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rclxm9.gif rclxm9.gif rclxm9.gif rclxm9.gif rclxm9.gif rclxm9.gif rclxm9.gif rclxm9.gif
wiraone
post Jan 3 2018, 12:38 PM

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DMR Megaeyeball 2017 - 30th Dec, 2017 @ Ghulam Mee, Kota Damansara

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Photos taken from Whatsapp group, sorry for the quality smile.gif
eddie_lim
post Jan 5 2018, 11:26 PM

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QUOTE(wiraone @ Dec 30 2017, 02:11 PM)
Tried to build one before for RTTY interface but failed, haha. Most probably my opto-isolator chip went bad or my soldering skill not good enough. smile.gif
*
You are right, i am bad in soldering also.

end up buying these from oversea ...
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