Go Back   Worldwide DX Amateur Radio Forums - Ham - CB - HF - VHF - UHF > Amateur Radio Related > HandiTalkies


Amateur Callsign Lookup
Enter Callsign:

Talk to me about the Icom IC-RX7 wideband receiver

Reply
 
LinkBack Thread Tools Display Modes
  #1  
Old 11-02-2009, 12:32 PM
Nightshade's Avatar
Member
iTrader: (0)
 
Join Date: Sep 2009
Posts: 51
Nightshade is on a distinguished road
Default Talk to me about the Icom IC-RX7 wideband receiver


This is the specs........



RX7 Specifications

General
Frequency Range (U.S.A. version):
0.150-823.995 MHz
849.0-868.995 MHz
894.0-1300.000 MHz
Mode: FM, WFM AM
Tuning Steps: 5, 6.25, 7.5, 8.33, 9, 10, 12.5, 15, 20, 25, 30, 50, 100, 200 kHz
Scan/Search Speeds: 100 channels per second/30 steps per second
Number of Memory Channels: 1650
Usable Temperature Range: -10°C to +60°C; +14°F to +140°F
Current Drain (at 3.0 V DC):
Rated Audio: 150 mA typ.
Standby: 100 mA typ.
Power Saved: 35 mA typ.
Power Supply Requirement: 3 x AA (R6) Ni-Cd or alkaline cells
Antenna Connector: SMA (50 ohms)
Dimensions: 2.25(W) x 3.1(H) x 0.8(D) inches (57 x 128 x 23 mm) (projections not included)
Weight: 7.1 oz. (200 kg)


Receiver
Receive System: Triple conversion superheterodyne
Intermediate Freq.
1st: 429.1 MHz
2nd: 19.65 MHz
3rd: 450 kHz
Sensitivity (except spurious points; typical):
FM (at 12 dB SINAD)
1.625 - 5.0 MHz, 0.56 µV
5.000 - 29.995 MHz, 0.25 µV
30 - 117.995 MHz, 0.2 µV
118 - 174.995 MHz, 0.18 µV
175 - 329.995 MHz, 0.22 µV
330 - 429.995 MHz, 0.25 µV
430 - 450 MHz, 0.22 µV
450.005 - 469.995 MHz, 0.25 µV
470 - 999.995 MHz, 0.28 µV
1000 - 1309.995 MHz, 0.35 µV
WFM (at 12 dB SINAD):
76 - 108 MHz, 0.78 µV
175 - 221.995 MHz, 1.78 µV
470 - 770 MHz, 2.5 µV
AM (at 12 dB SINAD):
0.495 - 4.995 MHz, 2.5 µV
5.000 - 29.995 MHz, 1.78 µV
118 - 136 MHz, 1.78 µV
222 - 246.995 MHz, 1.78 µV
247 - 329.995 MHz, 1.78 µV
Selectivity
AM, FM: More than 12 kHz/-9 dB, Less than 30 kHz/60 dB
WFM: More than 150 kHz/-6 dB
Audio Output Power: 75 mW typical, at 10% distortion with an 8 ohm load.
External Speaker Connector: 3-conductor 3.5(d) mm (1/8")/8 ohms
Specifications are subject to change without notice.

What it looks like.........
ICOM IC-RX7 Wideband Receiver RX7

I know zip about this type of radio but it looks like I can listen to Shortwave along with other bands. Am I correct? Or is this radio not at all what I think it is?

Just call me......
alone and lost in radio land.
__________________
Tie me to a stake. Entrap me in a wicker cage. Set a match to the pile of tobacco beneath me, and send me to the heavens in a fragrant cloud. Just let me have my pipe.
GLpease
Digg this Post!Add Post to del.icio.usBookmark Post in TechnoratiFurl this Post!
Reply With Quote
Worldwide Radio Forum
  #2  
Old 11-02-2009, 04:47 PM
Senior Member
iTrader: (0)
 
Join Date: Mar 2007
Posts: 675
SR385 is on a distinguished road
Default

The portables are not the best SWL rigs and certainly not with any portable antenna due to the wavelengths involved.

I'm curious what other people will say. My past experience with much older wideband receiver portables is, they have great receive as a fixed frequency monitor, but make for lousy scanners because their selectivity sucks so they 'stick' on the wrong channel.

Check RadioReference.com - Scanner Frequencies and Radio Frequency Reference for what I'm sure would be a pile of information on their wiki and the forums.
Digg this Post!Add Post to del.icio.usBookmark Post in TechnoratiFurl this Post!
Reply With Quote
  #3  
Old 11-02-2009, 04:52 PM
Beetle's Avatar
Senior Member
iTrader: (0)
 
Join Date: Dec 2005
Location: Western Washington
Posts: 1,225
Beetle is on a distinguished road
Default

You might be disappointed. Only AM and FM. No SSB, no CW. Antenna is a typical duckie style. Tiny speaker.

If you're really serious about SWLing, you could do worse than looking for an older, tube-type receiver in good working condition. My first "real" receiver was a Hallicrafters SX-99, and it doubled as my first ham receiver. This was, admittedly almost exactly fifty years ago, but that was one very nice receiver for SWLing from Las Vegas with 20 feet of wire stretched kitty-corner across my bedroom ceiling.

On something like the Icom, there's no way to connect that wire!

If you can get the Icom with like a "ten-day return if not satisfied" clause, you could at least see how it works for you. I don't think I'd be happy with such a tiny radio.
__________________
If you're like everybody else,
you're about average.
73 de K7KBN
Digg this Post!Add Post to del.icio.usBookmark Post in TechnoratiFurl this Post!
Reply With Quote
  #4  
Old 11-02-2009, 07:48 PM
Nightshade's Avatar
Member
iTrader: (0)
 
Join Date: Sep 2009
Posts: 51
Nightshade is on a distinguished road
Default

Quote:
Originally Posted by Beetle View Post
You might be disappointed. Only AM and FM. No SSB, no CW. Antenna is a typical duckie style. Tiny speaker.

If you're really serious about SWLing, you could do worse than looking for an older, tube-type receiver in good working condition. My first "real" receiver was a Hallicrafters SX-99, and it doubled as my first ham receiver. This was, admittedly almost exactly fifty years ago, but that was one very nice receiver for SWLing from Las Vegas with 20 feet of wire stretched kitty-corner across my bedroom ceiling.

On something like the Icom, there's no way to connect that wire!

If you can get the Icom with like a "ten-day return if not satisfied" clause, you could at least see how it works for you. I don't think I'd be happy with such a tiny radio.
Thanks, Guys. I was bored today so I started to look at scanners then one thing lead to another etc. until I finally decided.......Nuts! I don't need no stinking scanner! Truth is I've never really liked the noisy things anyway.

I like SWL and what's more important I'm comfortable with SWL and not with the concept of scanning. Ya'll have a nice day and thanks............
__________________
Tie me to a stake. Entrap me in a wicker cage. Set a match to the pile of tobacco beneath me, and send me to the heavens in a fragrant cloud. Just let me have my pipe.
GLpease
Digg this Post!Add Post to del.icio.usBookmark Post in TechnoratiFurl this Post!
Reply With Quote
  #5  
Old 11-03-2009, 12:41 PM
Senior Member
iTrader: (0)
 
Join Date: Mar 2007
Posts: 675
SR385 is on a distinguished road
Default

Quote:
Originally Posted by Beetle View Post

On something like the Icom, there's no way to connect that wire!
That's an easy fix, just bring your coax down to BNC and put an SMA to BNC adapter on the Icom. For stuff like that, I use the pigtails that use a small flexible whip of mini coax with SMA on one end and SO-239 on the other...keeps any strain off the portable's connector from rigid full sized coax.

I connect a BCD396XT to my GAP Titan's 9913 coax like this all the time.
Digg this Post!Add Post to del.icio.usBookmark Post in TechnoratiFurl this Post!
Reply With Quote
  #6  
Old 11-04-2009, 10:14 PM
Junior Member
iTrader: (0)
 
Join Date: Nov 2009
Posts: 2
Pozz is on a distinguished road
Default

Just in case someone did like me and read to the bottom of the thread. I though this might help somebody.

I've got a Yaesu VR-120D which is similar to a IC-RX7 but without a keypad. Anyway, my Yaesu not too shabby for DXing. I have a longwire outside. It and an earth ground comes-in and connects to a BNC to dual binding post adapter. Attach it where the "Duckie" was, and there you go. When I want to use it on VHF or up, I have a discone with a BNC. The scanner/wideband receiver is a good all-round piece to have. It's not perfect, but you really can't just throw IC-R75 in the front seat of the car.

BTW... Hello from NW GA. Newbie here - old school.
Digg this Post!Add Post to del.icio.usBookmark Post in TechnoratiFurl this Post!
Reply With Quote
Reply

Bookmarks


Thread Tools
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are On
Pingbacks are On
Refbacks are On


Similar Threads
Thread Thread Starter Forum Replies Last Post
If you've owned an Icom rig has it ever had to be repaired? moleculo General Ham Radio Discussion 20 10-18-2009 06:28 AM
2009 Dayton Hamvention Coverage moleculo General Ham Radio Discussion 72 05-19-2009 04:57 PM
New ICOM IC-7200 Happy_Hamer HF Bands and HF Rigs 2 07-30-2008 01:12 AM
ICOM IC-V8 Happy_Hamer General Ham Radio Discussion 1 11-24-2006 08:14 PM
Icom 703/Yaesu 857/897 vs. Icom 751A Thestonerguy HF Bands and HF Rigs 1 01-12-2005 10:06 PM


All times are GMT -7. The time now is 11:58 PM.


Powered by vBulletin®
Copyright ©2000 - 2009, Jelsoft Enterprises Ltd.
Search Engine Optimization by vBSEO 3.3.2
Worldwide Radio Forum