i think i remember vaguely it was me whn i was deciding 8800 or 8900 lol

I think i'll go with 8800....

save me some money on the rig as well as don't have to purchase additional duplexers and 10m/6m dual antenna.

One more thing. heard Kenwood D710a has this APRS thing. Is APRS actually useful for malaysian ham operators? It seems APRS could be used with AVMAP G5 GPS in the states and it seems quite useful.

Hamer,

There will be a talk on APRS at Port Dickson this weekend, more info, check it out at www.uniarm.org. There is an announcement about the event there.

This post has been edited by wiraone: Feb 20 2009, 10:59 AM

the kenwood 1 seems like a really good set bt the price is a lil..too steep

I know... JA1OGS will be giving some insights into APRS. Too bad i cannot leave Penang this weekend.

Wiraone.... if you are going to PD. Mind sharing the info with us?

Thanks bro

This post has been edited by hamer: Feb 20 2009, 01:07 PM

yea perhaps on wat will be said will be good

Unfortunately, I'm not going to PD. Need to do a taxi service for the kids. No idea if the northern amateurs have interest on APRS, if yes, why not invite Art to give a talk about APRS in Penang?

Good idea Wiraone....

I don't think i should be the one asking though...

I am newbie with no license & no rig....

Tak cukup layak lagi la....

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Added on February 20, 2009, 5:03 pmperhaps MARTS exco member should do the honour....

I bet MARTS have quite a number of excos staying in Penang....


This post has been edited by hamer: Feb 20 2009, 05:03 PM

yea tat'd be sweet! perhaps by getting in touch wif the marts members we'd knw if they're interested or not

hi bro, i have some doubt here abt maximum wattage output...
for 477mhz range, is it maximum wattage output up to 1 watt only for all the radio? or it just limited the family radio but not for professional radio? as i know, motorola malaysia produce GP2100, GP328, etc... the factory settings of output voltage wattage are 4 watt for 477mhz range... if our MCMC have the rules that maximum output only 1 watt but why motorola malaysia can product 4 watt product? but as i tested with GP2100 and TK3107 with 4 watt, the maximum coverage are only up to 2-3km at ground level only... imagine 1 watt only, i think within 1 km also problem...
anyone can assist me to clear my doubts?

This post has been edited by gkl83: Feb 21 2009, 09:18 AM

According to MCMC Bandplan, for 477MHZ Citizen Band PRS(public radio service), 477.0125MHz to 477.4875MHz, the Maximum (ERIP) is 5W with 12.5MHz spacing. , Then from 477.5250 to 477.9875MHz, the maximum EIRP is 0.5W with 12,5 spacing.

Motorola not only produce 4W, But we also produce 125W,25W,40W...and lot more.Bear in mind that motorola in penang it doesn't mean that the radio produce is mean for malaysia market, it is for rest of the world (for export). We manufactured alot of radio, those gp328 in in the WARIS family radio, WARIS famiy radio include gp328,gp328plus,gp338 in US, they called HT750 or in UK they called GP340.

I curious to know why ppl in low yat or else where bother about the range like how many KM..This is a very funny question from professional point of view.Of course, The range of the transmission depend on terrain,if in dessert where no obstruction, you can have greater range, but if you are in urban area where there is lot of building, the range will be decrease. this is due to a lot of reason which include rayleigh fading, RF interference and etc. Btw, those China TK3107 in malaysia market is a fake kenwood. Do you know how much a genuine tk3107 from kenwood cost ? RM900+ for one unit. If a pair cost around RM1800. At first i also curious why the price is diffrence a lot, it is until then when i test the fake 3107 using Marconi 2945A communication tester, realized that the output power is only at 3.5W as they claimed 4W. and the circuit board, the VCO, RF section is poorly shield.

So back to the question, if you are willing to spend rm900 to 1000 for gp328 for frs then is ok, but those motorola talkabout 1w will enough for family use. I also do not understand whey ppl in this forum keep saying 1W is useless, But before say somthing bad, try to think of other's view first. PPl set 1W must have their reason. they set 1w if for frequency reuse purpose, It is purposely to make the talking distance small, so that everone can use the spectrum. If you transmit at 4W, then your nearby people can't use the spectrum anymore.If you still cannot understand, pls google online about frequency reuse.

to gkl83, pls do not listen to those stupid comment in this forum. For those who post stupid answer, they are *******, they mislead other ppl, give wrong information and on the other hand, they do not even have basic RF knowledge, although they have the so called AA.

finally why ppl in this forum keep asking the range of walkie talkie range, how far you want? from padang besar to johor bharu coverage with walkie talkie ? if u want that, then pls come to motorola penang and i will discuss with you. We have that solution, but will you willing to pay for the price ???

very cleared explanation there.. hehe

aaaaa is from motorola pg? coool!

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Added on February 21, 2009, 2:50 pmoh oh hw abt the units tat were on demo the other time during some open hse or something the ones tat r like hp bt uses radio tech as well can u tell us more abt tat? izit any different thn normal walkie talkie? or izit much more complicated wif ctcss encoding?

This post has been edited by someone_stupid: Feb 21 2009, 02:50 PM

125W walkie talkie??? sure got or not??? I think the walkie talkie will need an external battery with a size of car battery if that is the case!

im pretty sure he meant 12.5W

hi aaaaa,

bcos i saw ur post at vertex thread... said that 477mhz range only can limit up to 1watt and also found some info around this thread that 5w enough to transmit the signal till Indonesia with proper setup, thought factory settings wattage output violated the MCMC rules...

i can understand ur frequency reuse means, the stronger wattage output and who is the one can get the specific frequency to communicate... is it correct?

usually seller will say the maximum range can cover up to 5km but that is point to point WITHOUT any obstruction... that why i required to test on the normal ground level to understand its range capabilities on normal condition to avoid any issues later...

about the mototrbo, it was no a frequency based equipments when in digital mode and wont pollute RF Spectrum?

This post has been edited by gkl83: Feb 21 2009, 10:14 PM

Regarding the mototrbo,there is a lot lot more feature...and if i want to explain, i even cannot finish it off with one page description, but for normal or bussiness or personal use, the conventional is good enough.First ask your self, what is the requirement ?normal ? then choose alpha series or gp2100, if you want to go to more advance, like if u required dispatch system, then choose gp328 gp338 coz it have MDC1200 signalling system build in. If you need a high up, then mototrbo, finally if you need to use it for public safety, police, goverment, then you choose the XTS series, the basic is XTS2500 (APCO16)like police in KL using or Astro saber III like police in penang using.

Digital or annalog will still pollute the spectrum, just that their modulation is diffrence only.

Yup, regarding someone_stupid post, the handphone look alike is a tetra based ( euro market) or IDEN (Us market) type... a lot to explain here, but you can search on wikipedia for more info..hehe

*when i talk about 125W, it is for sure is base station radio. It is a base station repeater set. Not handy walkie talkie ler....It is rack mount type, need external antenna and power supply.if you wan to see the 125W radio, go ask Mr Chia for teledynamic..u can find his post on low yat forum...go and ask that stupid saleman...he know nothing about radio...what he know is sale sale sale...and he dare to challenge me some more....if he so clever, ask him come join us at moto penang...dun be salesman buruk, jual walkie talkie in lowyat.net, mudah, lelong and other local forum...This guy try to hit his monthy target and so desperate and post all those stupid thing in this forum....and dare to call himself professional seller...haiz...

hi northern ham operators!

just got feedback from Mr Art (JA1OGS). He will be in Penang and could share APRS stuff to all of us who are willing to join in.

Anyone interested?

73

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Added on February 22, 2009, 11:11 amArt said on his email to me..... "Maybe next week Im in penang somewhere on a beach if needed we can meet or you setup a APRS meeting in Penang Im also planning for Langkawi...."

This post has been edited by hamer: Feb 22 2009, 11:11 AM

oh oh is there a specifi date?

Ayo.. why out of sudden a discussion out of amateur radio in the thread? Guess somebody has gone out of topic .. 477MHz is not in our band to use.