The 10m Cobra 148 GTL-DX mk1

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cb4ever104
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The 10m Cobra 148 GTL-DX mk1

Post by cb4ever104 » 09 Apr 2018, 14:47

Hi All .

Was speaking to Nick last week about a mk1 148 GTL-DX that I picked up. When I first started testing it I thought that someone had been messing about with the crystals . My MID was on LOW . HI was on MID , and my HI band was on 10m . Looking at the solder side everything looked clean , which baffled me a bit . Anyway . Turns out after talking to Nick that some mk1 148s were made that way . With 10m on the HI band (17.010 crystal fitted) .

To be honest I haven't had many mk1s through the years , and I never knew this . Actually , this might only be my 2nd , or 3rd :) So . I was just wondering . When did Cobra switch from this configuration to the more standard LOW/MID and HI that we all know and love . Does anyone know ? I know it was 1980 sometime , but it must have kicked off from a serial number .

I'll need to check mine again when I get back , but I think it was in the first 3000 , or so .

Sammy
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Re: The 10m Cobra 148 GTL-DX mk1

Post by astradyne » 09 Apr 2018, 20:36

Not sure about the MK1 148 GTL-DX Sammy, but some early MK2 360FM's covered mid/high/high high as stock. I have no idea when these started and finished production, but there does seem to be some weird and wonderful variants out there.
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Re: The 10m Cobra 148 GTL-DX mk1

Post by cb4ever104 » 09 Apr 2018, 20:41

Hi Andy.

Yeah. I think those ones have the higher crystal in them. The mk1 I have is a bit more like the first 360 which had 10m as well on the high band.

Love this hobby. Learn something new every day 😀
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Re: The 10m Cobra 148 GTL-DX mk1

Post by 14CS06 » 09 Apr 2018, 20:59

Hello

Remember this post ;)

viewtopic.php?f=29&t=46896

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Re: The 10m Cobra 148 GTL-DX mk1

Post by cb4ever104 » 09 Apr 2018, 22:04

14CS06 wrote:
09 Apr 2018, 20:59
Hello

Remember this post ;)

viewtopic.php?f=29&t=46896

@+
Claude
Hi Claude .

Yes , but that only talks about the transition from the mk1 to the mk2 . I'm talking about the change in the mk1 bands from MID/HI/10m to LOW/MID and HI .

Salut

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Paul aka "Sammy". (108) PY60 Old Paisley DX Group (RIP Rab Markie)
Ex GM0 , now EA5 .
Handle "Fortune Hunter" back in "the day"
Radios ....? Anything that says "TAIWAN R.O.C" on the back.

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Re: The 10m Cobra 148 GTL-DX mk1

Post by The Collector » 10 Apr 2018, 16:33

I'm sure the first ever radio I tarted up was like that in about '85. It was a non-FM Superstar 360.

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Re: The 10m Cobra 148 GTL-DX mk1

Post by cb4ever104 » 10 Apr 2018, 16:35

The Collector wrote:
10 Apr 2018, 16:33
I'm sure the first ever radio I tarted up was like that in about '85. It was a non-FM Superstar 360.
Yeah . That's standard for the 1979 Superstar 360 .

I'd just never came across the same thing with the mk1 148 GTL-DX .
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Ex GM0 , now EA5 .
Handle "Fortune Hunter" back in "the day"
Radios ....? Anything that says "TAIWAN R.O.C" on the back.

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Re: The 10m Cobra 148 GTL-DX mk1

Post by astradyne » 11 Apr 2018, 09:36

Just double checked my non FM 360 and, as I thought, it covers mid, high and the last band is up in 10 metres.
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Re: The 10m Cobra 148 GTL-DX mk1

Post by cb4ever104 » 11 Apr 2018, 10:00

Yeah . So did mine . That's the 360 standard . I moved the crystals in mine and did a mod to get the standard LOW/MID and HI bands . The other one I have had an eprom fitted to give it 5 bands .
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Handle "Fortune Hunter" back in "the day"
Radios ....? Anything that says "TAIWAN R.O.C" on the back.

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Re: The 10m Cobra 148 GTL-DX mk1

Post by slamjam » 12 Apr 2018, 11:02

The NOS 360fm MK2's I recently purchased the one that I briefly used was mid/High/High High and had a notice of variation with the manual to say the frequency lisiting in the manual LOW/Mid/High was wrong.
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Re: The 10m Cobra 148 GTL-DX mk1

Post by cb4ever104 » 12 Apr 2018, 12:27

cb4ever104 wrote:
11 Apr 2018, 10:00
Yeah . So did mine . That's the 360 standard . I moved the crystals in mine and did a mod to get the standard LOW/MID and HI bands . The other one I have had an eprom fitted to give it 5 bands .
Slight correction . The old 360 had the FCC MID band on "LOW" . "MID" was 28.000-440 , and "HI" was 28.500-940 .

Sammy
30TM060
Paul aka "Sammy". (108) PY60 Old Paisley DX Group (RIP Rab Markie)
Ex GM0 , now EA5 .
Handle "Fortune Hunter" back in "the day"
Radios ....? Anything that says "TAIWAN R.O.C" on the back.

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