Megahertz-Radio

About Radiocommunication – VHF – UHF – HF

Posts Tagged uhf

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

Dec 23

Posted by admin in Transceivers | No Comments

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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Puxing 777 – VHF or UHF, handheld radio.

Dec 22

Posted by admin in Transceivers | 1 Comment

Here you see a picture of the Puxing-777. This radio is DIRT CHEAP and are manufactured in Asia.  It’s  two versions of this radio. A VHF version, and a UHF.

I bought the VHF for 70$ USD from www.asiaradiosales.com earlier this year and this is the best handheld radio I ever had.  For 70$ you have a radio, beltclip, a desktop-charger and a battery. If you want better performance I recommend that you buy a longer antenna. I use a 42cm long 2m/70cm antenna from Diamond and I am very satisfied with this setup. 

I can buy 4-5 of these radioes for the price of ONE Icom / Kenwood / Yaesu. So you really don’t mind of you drop the radio to the ground and so on.  

Some friends of mine use these radioes for hunting, maritime and as a police scanner. (They only receive!) so this is a multi purpose radio. Can easily program the radio by hand, or via a computer-interface. The puxing 777 also support repeater splits and CTSS tones.  Some versions have 1750hz for opening ham radio repeaters. 

buy one at www.asiaradiosales.com . Fast delivery and shipping included in the price !!

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Review and information about Icom IC-7000

Dec 19

Posted by admin in Transceivers | No Comments

ICOM IC-7000 HF/VHF/UHF All band radio. 

 

 

 

 

 

 

 

 

 

 

 

 

Eham.net review: http://www.eham.net/reviews/detail/5338

KK5DR Review:  http://www.kk5dr.com/reviews/7K.pdf 

Youtube: http://uk.youtube.com/results?search_query=ic-7000&search_type=&aq=f

 

I bought one of these for a fixed installation at my QTH and this is one great little rig. It have a marvelous receiver and put out 100 watts with no problem. One drawback is the high current draw on receive and that is bad when you are portable on batteries. The thing I love about this radio is the IF DSP that is amazing.  The Icom ic-7000 are in another league than the old icom ic-706.   See under for specifications  from Icom America. (http://www.icomamerica.com/en/products/amateur/hf/7000/default.aspx ) 

 

 

 

Specifications

General
Frequency Coverage*1
  Receive

  Transmit

  
0.030–199.999MHz*2
400.000–470.000MHz*2
1.800– 1.999MHz
3.500– 3.999MHz
5.3305, 5.3465, 5.3665, 5.3715, 5.4035MHz*3
7.000– 7.300MHz
10.100–10.150MHz
14.000–14.350MHz
18.068–18.168MHz
21.000–21.450MHz
24.890–24.990MHz
28.000–29.700MHz
50.000–54.000MHz
144.000–148.000MHz
430.000–450.000MHz
*1 Showing USA Version. Varies according to version.
*2 Some frequency bands are not guaranteed.
*3 USB only.
Mode USB, LSB, CW, RTTY, AM, FM, WFM (Rx only)
No. of memory channels 503 (495 regular, 6 scan edges and 2 call)
Antenna connector SO-239×2

(for HF/50 MHz and 144/43/440MHz bands; 50Ω)
Temperature Range -10°C to +60°C;

+14°F to +140°F
Frequency stability Less than ±0.5 ppm (+0°C to +50°C; +32°F to +122°F)
Power supply requirement 13.8V DC ±15%
Power consumption
(approx.)
Tx   
Rx		 Max. Power   
Standby  
Max. Audio  		 22.0A
1.3A
1.6A
Dimensions (W×H×D)
(projections not included)		 167(W)×58(H)×180(D) mm;
69/1(6(W)×29/32(H)×73/32(D) in.
Weight (approx.) 2.3kg; 5.1lb
Receiver
Intermediate frequencies
  SSB, CW, RTTY, AM, FM
  WFM		  
124.487MHz, 455kHz, 16.15kHz
134.732MHz, 10.70MHz
Sensitivity (Pre-amp: ON)
  0.5-1.8MHz 1.8-29.9MHz 50-54MHz 144/440MHz
SSB/CW — 0.15µV 0.12µV 0.11µV
AM 4.0µV 2.0µV 1.0µV 1.0µV
FM — 0.5µV 
(28-29.7)		 0.25µV 0.18µV
WFM — — 10.0µV (76-108MHz)

SSB/CW, AM : 10dB S/N, FM, WFM : 12dB SINAD
Squelch sensitivity
  SSB
  FM 		 (Pre-amp: ON, threshold) 
Less than 5.6µV
Less than 0.3µV
Selectivity
  SSB (BW: 2.4kHz, sharp)
 
  CW (BW: 500Hz, sharp)
  
  RTTY (BW: 350Hz)
  
  AM (BW: 6kHz) 
 
  FM (BW: 15kHz)		 (representative value) 
More than 2.4kHz/–6dB
Less than 3.9kHz/–60dB
More than 500Hz/–6dB
Less than 900Hz/–60dB
More than 360Hz/–6dB
Less than 650Hz/–60dB
More than 6.0kHz/–6dB
Less than 15kHz/–60dB
More than 12kHz/–6dB
Less than 20kHz/–60dB
Spurious and image 
rejection ratio		 More than 70dB (HF bands) 
More than 65dB (other bands) 
(except 1/2 IF through on 50MHz, IF through on 144MHz)
AF output power
(at 13.8V DC) 		 More than 2.0W at 10% distortion with an 8Ω load
EXT SP connector 2-conductor 3.5 (d) mm (1/8″) / 8Ω

All stated specifications are subject to change without notice or obligation.

READ ALL INSTRUCTIONS carefully and completely before using the transceiver.

Supplied Accessories

  • Hand microphone, HM-151
  • DC power cable
  • Spare fuses
  • ACC cable (13-pin)
  • Electronic keyer plug
  • RTTY key plug
  • Microphone hange

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Scanner: UBC-780 XLT

Oct 16

Posted by admin in Receivers | 2 Comments

UBC780

UBC780

This is the UBC-780 XLT receiver (”policescanner”).

It was my first scanner, and since then I just loved the products from Uniden.

The great thing about this receiver is the size. It’s a “mobile” station and not the typical handheld version.

The radio fits perfect in the car or on my desktop. Because of the size, it’s very easy to operate the radio. Big knops and a great display with backlight.

This radio operates on 12volts (13.8v) DC and the current drain is about 700mA.

If you are an geek like me, you like to hook this thing up to your computer and that it’s very easy. Just get yourself a serial cable (RS232) and connect to your computer. When you buy this radio you get the original software, but you can also find 3. party software with more functions.

When you connect the radio to you computer it is very easy to program in new channels, make banks etc. Another benefit are that you can control the radio. Change frequency, mode and channels.

Some facts:

- HF/VHF/UHF

- 25-512 / 806-956 / 1240-1300 mhz

- 5/7,5/10/12,5/25/50/100 khz steps

- Antenna connector: BNC

- 500 channels

- 30 channels/sec (scan-speed)

- Mode: AM/FM/NFM/WFM

I Recommend this product !

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Welcome to my new webportal!

Oct 16

Posted by admin in Uncategorized | No Comments

Finally I had the time to make a blog based on my interest. So here you will find all about radio communication, how to make your own antenna and news about new radioes etc.

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