[Vk5-wx-sonde] Cheapo df rig for sondes

[Liam Gunning]

Any recommendations for antennas?

I’ve already got a number of different options for receivers. But no DF antenna. 

Regards,

Liam VK5LJG 

-------------------------------------
Liam Gunning
liam.gunning at icloud.com

Sent from iPhone

> On 10 Apr 2019, at 16:42, Lachlan Stewart via Vk5-wx-sonde <vk5-wx-sonde at vk5fo.com> wrote:
> 
> Nice idea Rob!
> 
> I might even try that with my spare sdr.
> I didn't know about sdr touch
> 
> Thankyou!
> 
> 
>> On Wed, 10 Apr 2019 4:39 pm Robert Middelmann via Vk5-wx-sonde <vk5-wx-sonde at vk5fo.com wrote:
>> Lachlan
>> My DFing setup is just an SDR, portable beam and a tablet computer running SDR touch on Android. Nice thing about the SDR is you can wind the gain down when you get close
>> 
>> Rob VK5TRM
>> 
>>> On Wed, Apr 10, 2019, 16:27 Lachlan Stewart via Vk5-wx-sonde <vk5-wx-sonde at vk5fo.com> wrote:
>>> Hi all,
>>> 
>>> It seems that a few people maybe after cheap rigs for df'ing sondes. I thought I'd let you know what I use!
>>> 
>>> This 433mhz jaycar receiver is broadband enough to pick up sondes
>>> https://www.jaycar.com.au/wireless-modules-receiver-433mhz/p/ZW3102
>>> 
>>> As far as putting a circuit together, see step 11 here;
>>> https://www.instructables.com/id/433-MHz-UHF-lost-model-radio-beacon/
>>> 
>>> When used with a 5 element yagi it is pretty sensitive to the sondes. When on the ground the range is around 1km, dependent on hills of course!
>>> 
>>> This receiver only pickups up the carrier. So with a normal radio you'd get silence, this unit gives distinct sounds. This maybe useful for those encrypted units!
>>> 
>>> Regards
>>> Lachlan 
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