Megahertz-Radio

About Radiocommunication – VHF – UHF – HF

Posts Tagged 70cm

Feidaxin FDC FD-150A/450A – Handheld VHF/UHF radio

Dec 23

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FDC FD-150A/450A

The first VHF radio I imported was a Feidaxin FDC FD-150A. This is a 2m (or 70cm) handheld radio. The price is about 60$USD. It’s a full 5 watt transmitter with everything you need. (Simplex, Duplex, CTCSS, DCS, memories..)

for 60 dollars this is a fantastic radio, but some drawbacks are there:

- Poor selectivity. 

- Useless S-meter

- no 1750 hz (for opening repeaters)

- Like every other handheld: useless original antenna. 

- When scanning, it will continue to scan after 5 seconds even if it’s traffic on the frequency. 

The last year I bought 8 of these radioes on all work great! Can use if for hunting, amateurradio and even listening at the police, firedepartment etc. 

Reviews: http://www.eham.net/reviews/detail/7191

Buy: http://www.asiaradiosales.com

 

PS: This radio work like a dream in a APRS setup. (GPS Tracking)

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Yaesu VX-8R

Dec 18

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Yaesu VX8R

The Yaesu VX-8R HT provides a full 5 watts FM on 50/144/430 MHz plus 1.5 watts on 222 MHz. It supports Bluetooth® hands-free operation with the optional BU-1 and BH-1 or BH-2 accessories. There is also an optional GPS unit and antenna with loads of features. This radio supports APRS 1200/9600 bps data communication (B band only). Like the VX7R, the VX8R is submersible and meets IPX57 specifications (3 feet for minimum of 30 minutes). A powerful 7.4 V 1100 mAh Lithium Ion battery is included. This HT is small, intuitive tooperate only 2.36 x 3.74 x 0.92 inches (thinner than VX-7R). It supports simultaneous independent 2-signal dual receive function with both V + V or U + U. It has weather band receive with Weather Alert. A barometric sensor is included. You can even operate Amateur radio whilereceiving FM broadcasts! The receive coverage is wider than VX-7R, with an independent AM/FM broadcast receiver circuit. The dot matrix LCD display provides Memory tag up to a maximum of 16 characters. You even get a high-resolution Spectrum Analyzer with ±60 channels indication with wave monitoring of received/modulated signal! And DCS and CTCSS encode and decode is standard.

The VX-8R comes with the SMA antenna, FNB-101LI Lithium Ion battery pack, belt clip and NC-86B battery charger. (The NC-86B should only be used for receive, because it is not capable of supplying sufficient current to support transmit).

 

Features
  • Optional Bluetooth®
  • Optional GPS
  • APRS 1200/9600 bps (B band only)
  • CTCSS/DCS Encode & Decode
  • Weather Receiving with Weather Alert
  • Wideband Receive
  • Dual Receive
  • Submersible IPX57
  • Dot Matrix LCD
  • Hi-Rez Spectrum Analyzer

 

 

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ISS 70cm to 2m FM Repeater operational

Dec 17

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David Barber has reported on the AMSAT Bulletin Board that the International Space Station (ISS) 70cm to 2 metre FM Repeater is operational.

The Space Station FM repeater has it’s input on 437.800 MHz and it’s output on 145.800 MHz. Unlike terrestrial repeaters there is no need to use CTCSS or any toneburst to activate it.

For information on how to use it see ‘ISS Repeater Tips’ by Miles Mann WF1F at
http://www.southgatearc.org/news/februa … r_tips.htm

You never know, you may get to talk to one of the Astronauts on-board the space station.

AMSAT Bulletin Board AMSAT-BB
http://www.amsat.org/amsat-new/tools/maillist/

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EA8AVI worked on 432Mhz

Dec 17

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EA8 worked on 432Mhz
During a good tropo opening, Robbie, EI2IP, worked several EA8 stations on 144Mhz using only 50w and a 10-element DX7ZB.

But, says Robbie, I also worked EA8AVI on 432.200MHz, on both CW and SSB.

Robbie’s setup for 432MHz is a FT-847, 50w and 19-element Tonna at 10 metres high and 100 metres ASL. He is 2.5km from the Atlantic Coast.

Peter, EA8AVI, who is in Gran Canaria, was only using 20 watts. It’s maybe a EI Tropo record on 432Mhz of approx 2,740Km..

Watch this short video of the contact.
http://www.southgatearc.org/news/july20 … ontact.htm

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